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Alamo 7191852C - page 1
©2009 Alamo Group Inc. $0.00 Published 03/09 P ar t No. 7191852C OPERA T OR’S MANUAL ALAMO INDUSTRIAL ® 1502 E. W alnut Seguin, T exas 78155 830-372-3551 Email: part s@alamo-industrial.com REAR-MOUNT BOOM MOWER This Opera tor's Manual is an in tegral part of the safe operation of this machine and must be maintained with the unit at all tim ...
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Alamo 7191852C - page 2
T o the Owner/Operator/Dealer All implements with moving p arts are potentially hazardou s. There is no substitute for a cautious, safe-minded operator who re cognizes the potential hazards and follows reasonable safety practice s. The manufacturer has designed this implement to be used with all it s safety equi pment properly attached to minimize ...
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Alamo 7191852C - page 3
In order to reduce accidents and enha nce the safe operation of mowers, Alamo Industrial, in cooperation with other industry manufacturers has developed the AEM/FEMA I ndustrial and Agri cultural Mower Safety Practices video and guide book. The video will familiari ze and instruct mower -tractor operators in safe practic es when using industrial an ...
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Alamo 7191852C - page 4
Alamo Industrial Division is willing to provide one (1) AEM Mower Safety Practices V ideo Please Send Me: VHS Format – AEM/FEMA Mower Operator Safety V ideo DVD Format – AEM/FEMA Mower Operator Safety V ideo Mower Operator ’ s Manual AEM Mower Operator ’ s Safety Manual Requester Name Phone: Requester Address: City S tate Zip Code Mower Mod ...
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Alamo 7191852C - page 5
T ABLE OF CONTENTS SAFETY SECTION ........ ................................................. .......................................... ........... 1- 1 General Safety Instructions and Practic es ................ ....................... ...................... ....................... . .................... 1-2 Operator Safety I nstructions and Pract ...
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Alamo 7191852C - page 6
Operator Thrown Object Protection .......... ...................... .................... ...................... ................... ....... ............... 4-5 Tractor Lighting and SMV Emblem ..................... ................... ................... .................... ................ ............. ........ 4-6 Tractor Ballast ....... ....... ...
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Alamo 7191852C - page 7
HYDRAULIC PUMPS ........................ ....................... ....................... ................... ...................... ....... .................. 5-4 FLAILHEAD .... ...................... .................... ...................... .................... ...................... ....... .......................... ........ 5-4 CABLE OPERATE ...
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Alamo 7191852C - page 8
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Alamo 7191852C - page 9
Safety Section 1-1 © 2009 Alamo Group Inc. SAFETY SECTION ...
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Alamo 7191852C - page 10
SAFETY PA91 03/09 Safety Section 1-2 © 2009 Alamo Group In c. SAFETY General Safety Instruct ions and Practices A careful operator is the best opera tor . Safety is of primary importance to the manufacturer and sho uld be to the owner/operator . Most accidents ca n be avoided by being aware of your equipment, your surroundings, and observing c ert ...
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Alamo 7191852C - page 11
SAFETY PA91 03/09 Safety Section 1-3 © 2009 Alamo Group In c. SAFETY Operator Safety Instr uctions and Practices Engine Exhaust, some of its constitue nts, a nd certa in vehicle component s contain or emit chemicals known to the st ate of California to cause cancer and birth defects or other reproductive harm. (S G-30) Battery posts, ter minals an ...
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Alamo 7191852C - page 12
SAFETY PA91 03/09 Safety Section 1-4 © 2009 Alamo Group In c. SAFETY PROLONGED EXPOSURE TO LOUD NOISE MA Y CAUSE PERMANENT HEARING LOSS! T ractors with or without an Implement attached can often be noisy enoug h to cause permanent hearing loss. We recommen d that you always wear hearing protection if the noise in the Operator’s position exceeds ...
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Alamo 7191852C - page 13
SAFETY PA91 03/09 Safety Section 1-5 © 2009 Alamo Group In c. SAFETY Equipment Operation Safety Instructions and Practices U se ex t reme cau ti on w h en ge tti ng on t o th e I mp l emen t t o per f orm rep a i rs, ma i n t enance an d when removing accu mulated material. Only st and on solid flat surfaces to e nsure good footing. Use a lad der ...
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Alamo 7191852C - page 14
SAFETY PA91 03/09 Safety Section 1-6 © 2009 Alamo Group In c. SAFETY U se ex t reme care w h en l ower i ng or un f o ldi ng th e i mp l emen t’ s w i ngs. M a k e sure no bysta nders are close by or underneath th e wings. Allow amp le clearance around the implement when folding or unfolding the wings . Use extreme caution around buildings or ov ...
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Alamo 7191852C - page 15
SAFETY PA91 03/09 Safety Section 1-7 © 2009 Alamo Group In c. SAFETY Never allow children to operate, ri de on, or come close to the T ractor or Implement. Usually , 16-17 ye ar-old children who are mature and responsible can operate the implement with adult supervision, if they have read and underst and the Operator’s Manuals, been trained in p ...
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Alamo 7191852C - page 16
SAFETY PA91 03/09 Safety Section 1-8 © 2009 Alamo Group In c. SAFETY Operate the T ractor and/or Imp lement controls on ly while pr operly seated in the T ractor seat with the seat belt secure ly fastened around y ou. Inadvertent mo vement of the T ractor or Implement may ca use serious injury or death . (SG-29) I n case o f mec h an i ca l diffi ...
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Alamo 7191852C - page 17
SAFETY PA91 03/09 Safety Section 1-9 © 2009 Alamo Group In c. SAFETY E xtreme care s h ou ld b e ta k en w h en operat i ng near l oose o bj ects suc h as gravel, rocks, wire, and other deb ris. Inspect the area be fore mowing. Foreign ob jects should be re moved from the site to prevent machine damage and/or bodily injury or even death. Any objec ...
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Alamo 7191852C - page 18
SAFETY PA91 03/09 Safety Section 1- 10 © 2009 Alamo Group In c. SAFETY Follow these guidelines to re duce the risk of equipment and grass fir es while operating, servicing, and rep airing the Mower and T ractor: -Equip the T ractor with a fire exti nguisher in an accesible location. -Do Not oper ate the Mower on a T ractor with an underfram e exha ...
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Alamo 7191852C - page 19
SAFETY PA91 03/09 Safety Section 1-11 © 2009 Alamo Group In c. SAFETY COnnecting or Disconn ecting Implement Safet y Instructions and Practices Rotary Mowers are capable un der adverse conditions of throwing objects for great distances (30 0 feet or more) and causing serio us injury or death. Follow safety messages carefu lly . STOP MOWING IF P AS ...
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Alamo 7191852C - page 20
SAFETY PA91 03/09 Safety Section 1- 12 © 2009 Alamo Group In c. SAFETY T ransporting Safety Inst ructions and Practices Always shut the T ractor completely down, place th e transmission in park, an d set the parking brake before you or anyone else attemp t s to connect or disco nnect the Implement and T racto r hitches. (S3PT-15) Never oper ate th ...
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Alamo 7191852C - page 21
SAFETY PA91 03/09 Safety Section 1-13 © 2009 Alamo Group In c. SAFETY Make cert ain that the “Slow Moving V ehicle” (SMV) sign is insta lled in such a wa y as to be c learly visible and legible. When transporting t he Equipment use the Tracto r flashing warning light s and follow all local traf fic regulations. (SG-6 ) T ransport only at speed ...
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Alamo 7191852C - page 22
SAFETY PA91 03/09 Safety Section 1- 14 © 2009 Alamo Group In c. SAFETY Maintenance and Service Saf ety Instructions and Practices Y our dr iving vision may be reduced or impaired by the tractor , cab, or implement. Befo re driving on public roadways ide ntify any limited vis ion areas, and m ake adjustments to you r operating position, mi rrors, a ...
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Alamo 7191852C - page 23
SAFETY PA91 03/09 Safety Section 1-15 © 2009 Alamo Group In c. SAFETY Periodically inspect all moving part s for wear and replace when necessary with au thorized service part s. Look for loose fastener s, worn or broken p arts, and leaky or loose fittings. Make sure all pins have cotter pins and washers. Serious in jury may occur from not maintain ...
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Alamo 7191852C - page 24
SAFETY PA91 03/09 Safety Section 1- 16 © 2009 Alamo Group In c. SAFETY Concluding Safety In structions and Practices PA R T S I N F O R M A T I O N Alamo Industrial mowers use ba lanced and matc hed system component s for blade carriers, blades, cuttershaft s, knives, knife hangers, rollers, dr ivetrain components, and be arings. These part s are ...
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Alamo 7191852C - page 25
SAFETY PA91 03/09 Safety Section 1-17 © 2009 Alamo Group In c. SAFETY Decal Location NOTE: Alamo Industrial supplies safety decals on this product to promote safe operation. Damage to the decals may occur while in shipping, use, or reconditioning. Alamo Indust rial cares a bout the safety of its customers, operators, and b ystanders, and will repl ...
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Alamo 7191852C - page 26
SAFETY PA91 03/09 Safety Section 1- 18 © 2009 Alamo Group In c. SAFETY ITEM P ART NO. QTY LEVEL DESCRIPTION 1. 002369 1 DANGER Multiple Haza rd Flail 2. 02958241 1 DANGER Multiple Haza rd Boom 3. 02965262 1 DANGER Oil Leak/Pene tration 4. 02965100 1 INSTRUCT Use Genuin e Alamo Industrial Parts 5. 02962764 2 DANGER Pinch Point s/Scissors 6. 0296276 ...
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Alamo 7191852C - page 27
SAFETY PA91 03/09 Safety Section 1-19 © 2009 Alamo Group In c. SAFETY Decal Description Danger! Mult-Hazard W arning. Failing to follow these Safety Messages an d Operating Instructions can cause serious bo dily injury or even death to operator and others in th e area. P/N 002369 ...
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Alamo 7191852C - page 28
SAFETY PA91 03/09 Safety Section 1- 20 © 2009 Alamo Group In c. SAFETY DANGER! - Multi-Hazard Boom. T ake precautions while transporting and oper ating Boom Unit. P/N 02958241 W ARNING! Failure to INSPECT and REP AIR or REPLACE Hoses may allow worn Hoses t o rupture SUDDENL Y and VIOLENTL Y with resulting serious BODIL Y INJURY from SCALDING or FI ...
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Alamo 7191852C - page 29
SAFETY PA91 03/09 Safety Section 1-21 © 2009 Alamo Group In c. SAFETY DANGER! Crushing and Pinch Point s. Moving machiney p arts can pinch or cru sh or fall- which may cause injury or death. P/N 02962765 INFORMA TION - T o prevent p remature hydraulic component failure, do not over speed the engine. When using the mower attachment, oper ate tracto ...
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Alamo 7191852C - page 30
SAFETY PA91 03/09 Safety Section 1- 22 © 2009 Alamo Group In c. SAFETY W ARNING: Press urized T ank 03200437 DANGER! Keep Away Thrown Object s. Inspect the area before m owing for potential mower hazards. Remove or avoid all foreign objects such as wire, cable, met al objects, and all other foreign material. Foreign material can be thrown from the ...
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Alamo 7191852C - page 31
SAFETY PA91 03/09 Safety Section 1-23 © 2009 Alamo Group In c. SAFETY W ARNING! Keep all safe ty shielding installed, repaire d and replaced when damaged so that machine stays in safe condition. P/N 00756007 DANGER! Keep Away - Rot ating Blades P/N 00756485 DANGER! Make certain that drivelin es are correct length and are se curely attached. P/N 00 ...
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Alamo 7191852C - page 32
SAFETY PA91 03/09 Safety Section 1- 24 © 2009 Alamo Group In c. SAFETY Information that Grease Fitting is pre sent and must apply grease. P/N 000678 Instructions to properly lubricate and check mower for potential problems pr ior to operation. P/N 000108 INFORMA TION - Attention - Service Hydraulic System with Universal Tr acto r Hydraulic Oil. Al ...
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Alamo 7191852C - page 33
SAFETY PA91 03/09 Safety Section 1-25 © 2009 Alamo Group In c. SAFETY W ARNING! A void Bodily Injury , Use 540RPM PTO S peed Only . P/N D103 Slow Moving V ehicle Decal. Keep SMV reflector clean and visible. DO NOT transport or operate without the SM V . P/N 03200347 Red Reflector . Keep reflectors clean and visible. P/N 1458392 Amber Reflector . K ...
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Alamo 7191852C - page 34
SAFETY PA91 03/09 Safety Section 1- 26 © 2009 Alamo Group In c. SAFETY PELIGRO! S pan ish Tr anslati on for Driveline Safety P/N 00773723 ALAMO INDUSTRIAL LOGO P/N 001651 ALAMO NAME LOGO. P/N 001650 Read Operato r ’s Manual! The operator ’ s manual is located inside this canister . If the manual is missing order one fr om your dealer . P/N 007 ...
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Alamo 7191852C - page 35
SAFETY PA91 03/09 Safety Section 1-27 © 2009 Alamo Group In c. SAFETY Federal Laws and Regulations This section is intend ed to explain in broad term s the concept and effect of federal laws an d regulations concerning emplo yer and employee equipment o perat ors. This section is not intended as a legal interpretation of the law and sh ould not be ...
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Alamo 7191852C - page 36
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Alamo 7191852C - page 37
Introduction Section 2-1 © 2009 Alamo Group Inc. INTRODUCTION SECTION ...
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Alamo 7191852C - page 38
INTRODUCTION PA91 03/09 Introduction Section 2-2 © 2009 Alamo Group Inc. INTRODUCTION This trimmer is designed with care and built with quality materials by skilled workers. Proper as sembly , maintenance, and operating practices, as described in this manual, will help the owner/ operator get years of satisfactory service from the machine. The pur ...
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Alamo 7191852C - page 39
INTRODUCTION PA91 03/09 Introduction Section 2-3 © 2009 Alamo Group Inc. INTRODUCTION These hydraulically driven flail trimme rs are design ed for medium-duty wo rk. They can mow pastures an d control grass and we eds on highways or industria l sites. For Non-Agricultural use, OSHA, ASAE, SAE an d A NSI st andards require the use of Chain Guards, ...
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Alamo 7191852C - page 40
INTRODUCTION PA91 03/09 Introduction Section 2-4 © 2009 Alamo Group Inc. INTRODUCTION A TTENTION OWNER/ OPERA TOR BEFORE OPERA TING THIS MACHINE: 1. Carefully read the Operator’s Manual, completely underst and the Safety Messages and instructions, an d know how to operate correctly both the Mower an d Power Unit. 2. Fill out the W arranty Card i ...
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Alamo 7191852C - page 41
Assembly Section 3-1 © 2009 Alamo Group In c. ASSEMBL Y SECTION ...
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Alamo 7191852C - page 42
ASSEMBLY PA91 03/09 Assembly Section 3-2 © 2009 Alamo Group In c. ASSEMBL Y TRACTOR SELECTION Horsepower and Weight Requiremen ts The Power Arm 91 requ ires a tractor with a minimum of 30 HP in conjunction with a minimum weight of 1500Kg (1.5 tons imp. 1.6 tons U.S.) . If necessary , add ballast to achieve this weight. Check in the tractor’s han ...
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Alamo 7191852C - page 43
ASSEMBLY PA91 03/09 Asse mbly Section 3-3 © 2009 Alamo Group Inc. ASSEMBL Y TRACTOR PREP ARA TION Fitting Operator Guard A tractor fitted with a cab that has a safety glass windo ws should b e used whenever possible. This is a basic safety precaution applicable to the use of all flail-type hedge trimmer s. Power arms are supplied with an operator ...
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Alamo 7191852C - page 44
ASSEMBLY PA91 03/09 Assembly Section 3-4 © 2009 Alamo Group In c. ASSEMBL Y Ballast Weig ht T ractor must be st able while operating the hedge cutter s under all conditions. Pay at tention when operating on slopes. Front end ballast a s well as rear wheel weights to counterbala nce the overhang of the flail head should be added as appro priate. On ...
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Alamo 7191852C - page 45
ASSEMBLY PA91 03/09 Asse mbly Section 3-5 © 2009 Alamo Group Inc. ASSEMBL Y DELIVER Y 1. The machine is delivered in a partially dismantled condition. T o make re ady for att achment to the tractor it will be necessary to select a hard level surface 2. Cut the banding strap s and remove the attached articles. 3. Fill the reservoir to capacity with ...
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Alamo 7191852C - page 46
ASSEMBLY PA91 03/09 Assembly Section 3-6 © 2009 Alamo Group In c. ASSEMBL Y *This measurement which is the fully closed fin al le ngth of the PTO drive shaf t measured button to button should be taken car efully before the PTO drive shaft is shortened to suit by cutting of f both the driving and driven members of the tube by an equal amount. Likew ...
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Alamo 7191852C - page 47
ASSEMBLY PA91 03/09 Asse mbly Section 3-7 © 2009 Alamo Group Inc. ASSEMBL Y This procedure is for initial atta chment only , for subsequent attachm ent paras marked * do not apply . If it is required to mount the machine on a different tractor , bear in mind that the engagement of the PT O shaft will alter . A safe minimum engagement between the t ...
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Alamo 7191852C - page 48
ASSEMBLY PA91 03/09 Assembly Section 3-8 © 2009 Alamo Group In c. ASSEMBL Y FITTING CONTROL UNIT IN CAB The 3 lever control unit which is c abl e operated is mounted on an adju stabl e st alk that is attached to a seat bracket which is of univer sal design for mounting in many models of tractor . The bracket is normally tr apped between the seat r ...
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Alamo 7191852C - page 49
ASSEMBLY PA91 03/09 Asse mbly Section 3-9 © 2009 Alamo Group Inc. ASSEMBL Y OIL REQUIREMENTS Ta n k The machine is delivered fro m the factory without o il. Fill the reservoir wit h a light hydr aulic oil as recommended in the chart until the oil level is approximat ely 2” below the top of the tank. The tot al capacity is approximately 1 17 tire ...
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Alamo 7191852C - page 50
ASSEMBLY PA91 03/09 Assembly Section 3-10 © 2009 Alamo Group In c. ASSEMBL Y RUNNING UP PROCEDURE PA 9 1 T i 1. Ensure th at the rotor contr ol is in “STOP” positi on, start the tractor , engage PTO and allow the oil to circulate for about 5 minu tes without oper ation of the a rmhead control lever . This will allow all the oil to circulate th ...
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Alamo 7191852C - page 51
ASSEMBLY PA91 03/09 Assembly Sectio n 3-11 © 2009 Alamo Group Inc. ASSEMBL Y REMOV AL FROM TRACTOR 1. Select a firm level site for parking the machine. 2. Lower the parking leg s and secure. 3. Operate the hydraulic service to pl ace the arms at 1/2 to 3/4 re ach and with the flail head roller horizontal and level with the bottom of the p arking f ...
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Alamo 7191852C - page 52
ASSEMBLY PA91 03/09 Assembly Section 3-12 © 2009 Alamo Group In c. ASSEMBL Y PROPER TORQUE V ALUES FOR F ASTENERS The chart lists the correct tightening torqu e for fastener s. When bolt s are to be tightened or replaced, refer to this chart to determine the grade o f bolts and the prop er torque except when specific torque values are assigned in ...
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Alamo 7191852C - page 53
Operation Sectio n 4-1 © 2009 Alamo Group In c. OPERA TION SECTION ...
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Alamo 7191852C - page 54
OPERATION PA91 02/08 Operation Sec tion 4-2 © 2009 Alamo Group Inc. OPERA TION ALAMO INDUSTRIAL POWER ARM 91 OPERATING INSTRUCTIONS Alamo Industrial Inte rstater flail mowers are ma nufactured with quality material by skilled workers. These mowers are designed for cutting grass and small weeds. The mower is eq uipped with pr otective deflector s t ...
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Alamo 7191852C - page 55
OPERATION PA91 02/08 Operation Sec tion 4-3 © 2009 Alamo Group In c. OPERA TION 1. St andard Equipment and Specifications St andard S pecifications Welded T ubular Frame CA T I or CA T II Three Point Hitch 24-Gallon R eservoir with 12 Mi cron Filtration Self-Contained Hydraulics Hydraulic Breakaway 3-S pool V alve with Work Port Reliefs 1-1/2” K ...
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Alamo 7191852C - page 56
OPERATION PA91 02/08 Operation Sec tion 4-4 © 2009 Alamo Group Inc. OPERA TION 2. OPERA TOR REQUIREMENTS Safe operation of the unit is the responsibility of a qualifi ed operator . A qualified operator ha s read and understands th e implement and tractor Operator’s Ma nuals and is experienced in implement and tractor operation and all associated ...
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Alamo 7191852C - page 57
OPERATION PA91 02/08 Operation Sec tion 4-5 © 2009 Alamo Group In c. OPERA TION 3. TRACTOR REQUIREMENTS In addition to tractor ho rsepower and size required to operate the mower unit, the tra ctor must also be properly equipped to provide operator pr otecti on, to alert approaching vehicle drivers of the tractor ’ s presence, and to ensure tract ...
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Alamo 7191852C - page 58
OPERATION PA91 02/08 Operation Sec tion 4-6 © 2009 Alamo Group Inc. OPERA TION Never opera te the Tr actor and Mowe r Unit with out an OPS (Operators Protective S tructure) or Cab to prevent injury from object s thrown from ground or from overhead trimmi ng. S t op mowing if workers or passersby are with in 100 yards. (S BM-9) 3.3 T ractor Lightin ...
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Alamo 7191852C - page 59
OPERATION PA91 02/08 Operation Sec tion 4-7 © 2009 Alamo Group In c. OPERA TION 3.6 T ractor Horsepower The horsepower requir ed to operate the mower depends on many factors including vegetation to be cut, terrain condition, operator experience, an d condition of the mower and tractor . For most mowing condition, the P A91 flail trimmer requires a ...
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Alamo 7191852C - page 60
OPERATION PA91 02/08 Operation Sec tion 4-8 © 2009 Alamo Group Inc. OPERA TION 3.7 3-Point Hitch P A91 boom mowers can att ach to tractors with either a CA T I or II hitc h. Refer to the tractor operator’s manual for the ca tegory of the tractor used. If the hitch does not conform to ASAE Cat I or II dimensions, the mower may not fit or raise pr ...
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Alamo 7191852C - page 61
OPERATION PA91 02/08 Operation Sec tion 4-9 © 2009 Alamo Group In c. OPERA TION 3.10 Power T ake Off (PTO) Depending on the u nit, the mower is designed to oper at e at a PTO speed of 540 or 1000 RPM. Most tracto rs operate at either 540, or a combination of 540 a nd 1000 RPM PTO speeds. The operatin g speed of the mower and tractor can be determi ...
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Alamo 7191852C - page 62
OPERATION PA91 02/08 Operation Section 4- 10 © 2009 Alamo Group Inc. OPERA TION 4.1 Boarding the T ractor Use both hands and equ ipped handrails and steps for supp ort when boarding the tractor . Never use control levers for suppor t when mounting the tractor . Seat your self in the operator ’s seat and secure the seat belt around you. Never all ...
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Alamo 7191852C - page 63
OPERATION PA91 02/08 Operation Section 4- 11 © 2009 Alamo Group In c. OPERA TION 5. ST ARTING THE TRACTOR The operat or must have a com plete understanding of th e placement, func tion, and opera tional use of all tractor cont rols before starting the t ractor . Review the tractor operator ’ s manual and consult an autho rized dealer for tractor ...
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Alamo 7191852C - page 64
OPERATION PA91 02/08 Operation Section 4- 12 © 2009 Alamo Group Inc. OPERA TION 5.1 Connecting Att aching Head to the Boom 1. S tar t by using a hoist to lower the boom(1) down to the mower he ad (6). Align the Boom with the Head Hitch Post(7), insert the upper hitch pin(2) throug h the top hole of the Head Hitch Post (7) and up per linkage (1 1). ...
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Alamo 7191852C - page 65
OPERATION PA91 02/08 Operation Section 4- 13 © 2009 Alamo Group In c. OPERA TION Always shut the T ractor completely down, place th e transmission in park, an d set the parking brake before you or anyone else attemp t s to connect or disco nnect the Implement and T racto r hitches. (S3PT-15) Periodically inspect all moving part s for wear and repl ...
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Alamo 7191852C - page 66
OPERATION PA91 02/08 Operation Section 4- 14 © 2009 Alamo Group Inc. OPERA TION 6. PRE-OPERA TION INSPECTION AND SER VICE Before each use, a pre-ope ration inspection and service of the imple ment and tractor must be performed. This includes routine maintenan ce and scheduled lubricat ion, inspecting that all safety devices are equipped and functi ...
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Alamo 7191852C - page 67
OPERATION PA91 02/08 Operation Section 4- 15 © 2009 Alamo Group In c. OPERA TION 6.2 Boom Unit Pre-Operat ion Inspection and Service Inspect and service the boom arm and head prior to operation. Damaged and/or broken part s should be repaired and/or replaced immediately . T o ensure the unit is ready for operation, conduct the following : OPS-B- 0 ...
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Alamo 7191852C - page 68
OPERATION PA91 02/08 Operation Section 4- 16 © 2009 Alamo Group Inc. OPERA TION FRAME ASSEMBL Y • Inspect condition of mounting frame weldment. • Inspect condition of King Post frame. • Ensure all bolt s and screws are in position and are properly to rqued. • Ensure all pins are in place and fastened with screws. • Ensure frame is p rope ...
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Alamo 7191852C - page 69
OPERATION PA91 02/08 Operation Section 4- 17 © 2009 Alamo Group In c. OPERA TION Relieve hydraulic pressure prio r to doing any maintenance or re pair work on the Implement. Place the Mower Head on the ground or secure ly supported on blocks or st ands, disengage the PTO, and turn off the engine. Push and pull the control Leve rs or Joystick sever ...
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Alamo 7191852C - page 70
OPERATION PA91 02/08 Operation Section 4- 18 © 2009 Alamo Group Inc. OPERA TION Do not operate this Equ ipment with hy draulic oil or fuel leaking. Oil and fuel are explosive and the ir presence could present a haza rd. Do not check for leaks with your hand! High-pr essure oil streams from breaks in the line co uld penetrat e the skin and cause ti ...
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Alamo 7191852C - page 71
OPERATION PA91 02/08 Operation Section 4- 19 © 2009 Alamo Group In c. OPERA TION Boom Mower PRE-OP ERA TION Inspection Mower ID#________________ Make ____________________ Date: ________________ Shift ____________________ Before conducting the inspection, make sur e the tractor engine is off, all rotation has stopped and the tractor is in park with ...
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Alamo 7191852C - page 72
OPERATION PA91 02/08 Operation Section 4- 20 © 2009 Alamo Group Inc. OPERA TION T ractor PRE-OPERA TION Inspection Mower ID# ________________ Make ____________________ Date: ________________ Shift ____________________ Before conducting the inspection, make sur e the tractor engine is off, all rotation has stopped and the tractor is in park with th ...
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Alamo 7191852C - page 73
OPERATION PA91 02/08 Operation Section 4- 21 © 2009 Alamo Group In c. OPERA TION 7. OPERA TING THE BOOM MOWER 7.1 Machine Controls Moving the Arm control le vers away from the cables will result in “LIft Down”, “Angle Down” and “Reach Out”. For Ti Models only , the Flail On/Off valve can be mounted on either end of the main co ntrol bl ...
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Alamo 7191852C - page 74
OPERATION PA91 02/08 Operation Section 4- 22 © 2009 Alamo Group Inc. OPERA TION 7.3 Forward Speed T ractor ground speed is d etermined by common sense and experience. It should be slow enough to allow sufficient time for the flails to cut the work without over loading. It is obvi ously bett er to make a seco nd pass or more in heavier growth to av ...
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Alamo 7191852C - page 75
OPERATION PA91 02/08 Operation Section 4- 23 © 2009 Alamo Group In c. OPERA TION 7.9 Hedge Cutting Procedure Upward Cutting The flail head is assembled at th e factory for the flails to cut with an upward motion. Upward cutting produc es a cleaner finis h minimizes split stems and is ideal for a light hedge that has been regularly maint ained. The ...
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Alamo 7191852C - page 76
OPERATION PA91 02/08 Operation Section 4- 24 © 2009 Alamo Group Inc. OPERA TION Reversing Rot ation (Si Only) Fully extend th e armhead and lower flail to the ground to minimize oil loss. Release the rotor hoses from either the flail motor o r the rotor control valve and interchang e the connections. Do not cross over the flail supply and return h ...
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Alamo 7191852C - page 77
OPERATION PA91 02/08 Operation Section 4- 25 © 2009 Alamo Group In c. OPERA TION 7.10 Lif t Float Kit (Optional) Ground scrub flailing can be a slow tedious task requ iring a high degree of operator concentration especially when working on a rough or rising ground. A hydrau lic float kit is available wh ich is mounted tap upwards through the inboa ...
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Alamo 7191852C - page 78
OPERATION PA91 02/08 Operation Section 4- 26 © 2009 Alamo Group Inc. OPERA TION 7.1 1 Flail T ypes T wo types of flail are available : The F91 H is a cast flail suitable fo r continuous hedge and scru b cutting. It will also cut grass, but the finish will be inferior to that produ ced by the F91 G and the power requirement s greater . The F91 G is ...
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Alamo 7191852C - page 79
OPERATION PA91 02/08 Operation Section 4- 27 © 2009 Alamo Group In c. OPERA TION 8 . DRIVING THE TRACT OR AND IMPLEMENT Safe tractor transport r equires the operator to po ssess a thorou gh knowledge of the model being operated and precaution s to take while driving with an attached implem ent. Ensure the tracto r has the capacity to handle the we ...
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Alamo 7191852C - page 80
OPERATION PA91 02/08 Operation Section 4- 28 © 2009 Alamo Group Inc. OPERA TION T ransport only at speeds where you can maint ain control of the equipment. Seriou s accidents and injuries can result from operating this equipment at high speeds. Understand the Tra ctor and Implement and how it hand les before transporting on street s and highways. ...
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Alamo 7191852C - page 81
OPERATION PA91 02/08 Operation Section 4- 29 © 2009 Alamo Group In c. OPERA TION 8.2 Brake and Differential Lock Setting Make sure the tracto r brakes are in good operating conditio n. Tractor br akes can be set to operate independ ently allowing single rear wheel braking action or locked to gether to provide simultaneo us rear wheel braking. FOR ...
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Alamo 7191852C - page 82
OPERATION PA91 02/08 Operation Section 4- 30 © 2009 Alamo Group Inc. OPERA TION 8.3 T ransport Position • For tran sport on public highway , the boom must be folded within the overall width of the tractor .Position the arm until the boom head is approximately 4 ft. (1.5 M) clear of the ground and the dip per is horizontal. • Pull the dipper ar ...
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Alamo 7191852C - page 83
OPERATION PA91 02/08 Operation Section 4- 31 © 2009 Alamo Group In c. OPERA TION 8.4 Driving the T ractor and Boo m S tart of f driving at a slow speed and gradu ally increase your speed while maintainin g complete control of the tractor . Never operate the tractor at speeds that cannot be safely handled or which will prevent the operator from sto ...
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Alamo 7191852C - page 84
OPERATION PA91 02/08 Operation Section 4- 32 © 2009 Alamo Group Inc. OPERA TION 9.1 OPERA TING INSTRUCTIONS 1. Engage the PT O shaft at low en gine RPM and speed the engine u p after blades ar e fully engaged. Never engage the PT O shaft at a high engine RPM. This c ould cause damage to the PTO shaft as well as the S peed Increaser and Pu mp. Alwa ...
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Alamo 7191852C - page 85
OPERATION PA91 02/08 Operation Section 4- 33 © 2009 Alamo Group In c. OPERA TION When cutting folia ge and fine shredding is desired, run the mower level or slightly lower in the rear so as to keep the material in the mower until it is shredded. This will require more power but will shred better . When cut- ting heavy foliage and fine shredding is ...
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Alamo 7191852C - page 86
OPERATION PA91 02/08 Operation Section 4- 34 © 2009 Alamo Group Inc. OPERA TION 9.2 Foreign Debris Hazards Before mowing, in spect the area to make sure there are no foreign obje cts that the mower blades could hit or b ecome entangled with. Remove all foreign objects and debris. If o bjects are too big to re move, mark them clearly and be sure to ...
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Alamo 7191852C - page 87
OPERATION PA91 02/08 Operation Section 4- 35 © 2009 Alamo Group In c. OPERA TION Rotary Mowers are capable un der adverse conditions of throwing objects for great distances (30 0 feet or more) and causing serio us injury or death. Follow safety messages carefu lly . STOP MOWING IF P ASSERSBY ARE WITHIN 100 Y ARDS UNLESS: -Front and Rear Deflectors ...
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Alamo 7191852C - page 88
OPERATION PA91 02/08 Operation Section 4- 36 © 2009 Alamo Group Inc. OPERA TION 9.5 Operating Speed and Ground S peed Ground speed for mowing will depend upon the height, type, and density of veget ation to be cut. Do Not exceed 2 MPH while op erating. Operate the mower at its full rated PT O speed to ma intain blade speed for a clean cut. Refer t ...
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Alamo 7191852C - page 89
OPERATION PA91 02/08 Operation Section 4- 37 © 2009 Alamo Group In c. OPERA TION There are obvio us and hidden potential hazards in the operation of this Mower . REMEMBER! This machine is of ten operated in heavy br ush and in heavy weeds. The Bla des of this Mower ca n throw objects if shields are not pro perly installed and maint ained. Serious ...
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Alamo 7191852C - page 90
OPERATION PA91 02/08 Operation Section 4- 38 © 2009 Alamo Group Inc. OPERA TION 9.7 Shutting Down the Attached Head T o shut down attached mower head , first bring the tractor to a complete stop. Decrease engine RPM to idle then disengage cutterhea d. The mower head will come to a complete stop within a suitable amount of time. Do not engage or di ...
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Alamo 7191852C - page 91
OPERATION PA91 02/08 Operation Section 4- 39 © 2009 Alamo Group In c. OPERA TION 9.8 TRACTOR, BOOM , AND A TT ACHED HEAD STORAGE Properly prep aring and storing the unit at the end of the season is critical to maintainin g its appearance a nd to help ensure years of dep endable service. The following are suggested storage pr ocedures: • Thorough ...
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Alamo 7191852C - page 92
OPERATION PA91 02/08 Operation Section 4- 40 © 2009 Alamo Group Inc. OPERA TION NOTE: Ensure that the mo wer sections are fully raised and that the transp ort locks are engaged for e ach section. 10. TRANSPORTING THE TRACT OR AND IMPLEMENT Inherent hazards of operating the tr actor and implement and the possibilit y of accidents are not left behin ...
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Alamo 7191852C - page 93
OPERATION PA91 02/08 Operation Section 4- 41 © 2009 Alamo Group In c. OPERA TION O n l y t ow th e I mp l emen t b e hi n d a proper l y s i ze d an d equ i ppe d T rac t or which exceeds the weight of the Impl ement by at least 20%. DO NOT tow the Imp lement behind a tr uck or other type of vehicle. Never t ow the Implement and a nother Implement ...
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Alamo 7191852C - page 94
OPERATION PA91 02/08 Operation Section 4- 42 © 2009 Alamo Group Inc. OPERA TION When operating on public roads, have consideration for other road u sers. Pull to the side of the road occasionally to allow all following traffic to pass. Do not exceed the lega l speed limit set in your country for agricultural tra ctors. Always stay alert when trans ...
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Alamo 7191852C - page 95
OPERATION PA91 02/08 Operation Section 4- 43 © 2009 Alamo Group In c. OPERA TION 10.2 Hauling the T racto r and Implement Before transporting a loade d tractor and implement, measure the height and width dimensions and gro ss weight of the complete loaded unit. Ensure that the load will be in compliance wit h the legal limits set for the areas tha ...
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Alamo 7191852C - page 96
OPERATION PA91 02/08 Operation Section 4- 44 © 2009 Alamo Group Inc. OPERA TION 1 1. TROUBLESHOOTING GUIDE TROUBLE POSSIBLE CAUSE POSSIBLE REMEDY Hydraulic Cylinder Hydraulic level low . Check hydraulic fluid level. Not Working (See sight gauge on tan k) Pump not functioning Attempt to use another cylinde r or properly . pressure gauge. Cylinder n ...
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Alamo 7191852C - page 97
OPERATION PA91 02/08 Operation Section 4- 45 © 2009 Alamo Group In c. OPERA TION TROUBLE POSSIBLE CAUSE POSSIBLE REMEDY S tructural Membe rs Rough treatment. Use only on elements it is designe d Failure to cut such as grass, weeds, brush, trees. Excessive Vibrations Check Gear box bolts. T ighten if loose. Check For loose nuts on T ighten If loose ...
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Alamo 7191852C - page 98
OPERATION PA91 02/08 Operation Section 4- 46 © 2009 Alamo Group Inc. OPERA TION TROUBLE POSSIBLE CAUSE POSSIBLE REMEDY Gearbox Leaking Damaged oil seal Replace seal. Bent shaft. Replace oil seal and shaf t. Shaft roug h in oil seal area. Replace or repair shaft. Oil seal installed wrong. Replace seal. Oil seal not sealing Replace seal or use a s e ...
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Alamo 7191852C - page 99
Maintenanc e Section 5-1 © 2009 Alamo Group Inc. MAINTENANCE SECTION ...
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Alamo 7191852C - page 100
MAINTENANCE PA91 03/0 9 Maintenance Section 5-2 © 2009 Alamo Group Inc. MAINTENANCE LUBRICA TION General Refer to the lubrication diagram an d grease daily all the points show n. 1. Power ta ke-off shaf t - The PTO shaf t should be regularl y examined to ensure that it is in good condition together with the g uards. The universal joint s shoul d b ...
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Alamo 7191852C - page 101
MAINTENANCE PA91 03/0 9 Maintenance Section 5-3 © 2009 Alamo Group Inc. MAINTENANCE HYDRAULIC SYSTEM Oil Supply Check the oil level in the reservoir da ily . The first oil change should take p l ace th e first 250 hour s of operation and every 500 hours or every 12 months thereafter . Alth ough the oil does not wear out, it does eventually break d ...
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Alamo 7191852C - page 102
MAINTENANCE PA91 03/0 9 Maintenance Section 5-4 © 2009 Alamo Group Inc. MAINTENANCE HYDRAULIC PUMPS 1. All pumps ar e rotate clockwise. No routine maint enance is necessar y other than a periodical ch eck for tightness of the mounting bolt s and a visual check fo r oil leakage especially around the pump supply and pressure unions. Where two hose c ...
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Alamo 7191852C - page 103
MAINTENANCE PA91 03/0 9 Maintenance Section 5-5 © 2009 Alamo Group Inc. MAINTENANCE CABLE OPERA TED ARMHEAD CONTROL V AL V E Replacing Damaged or Worn S pool “O” Rings 1. Release the locknut located on the cable at the back of the sleeve. 2. Remove th e two allen headed capscrews that secure th e sleeve to the v alve block and scr ew the sleev ...
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Alamo 7191852C - page 104
MAINTENANCE PA91 03/0 9 Maintenance Section 5-6 © 2009 Alamo Group Inc. MAINTENANCE Main Relief V alve The main relief valve is pressure set at the factory to 1 800 PSI (125 Bar) and is non-adjust able. A sticking relief valve will probably cause overhea ting and/or loss of power . If this is suspected, it should be dismantled and examined for dir ...
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Alamo 7191852C - page 105
MAINTENANCE PA91 03/0 9 Maintenance Section 5-7 © 2009 Alamo Group Inc. MAINTENANCE HYDRAULIC RAMS Ram Seal Replacement - General Information 1 1. Whenever possible the ram should be removed from the machin e and cleaned off before dismantling on a clean work bench. 12. When using a bench vice, do no t apply excessive pressure to the ram cylinder ...
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Alamo 7191852C - page 106
MAINTENANCE PA91 03/0 9 Maintenance Section 5-8 © 2009 Alamo Group Inc. MAINTENANCE ROT OR CONTROL V AL VE/RELIEF V AL V E Relief V alve The relief valve within the block is pre- calibrated to gi ve setting of 3000 PSI (210 Bar). No servicing should be required other than cleaning and examining for damage should a malfunction occur . Evidence or d ...
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Alamo 7191852C - page 107
MAINTENANCE PA91 03/0 9 Maintenance Section 5-9 © 2009 Alamo Group Inc. MAINTENANCE Replacing Shaf t Seals 1. The doub le shaft seal assembly m ust be assembled wit h the 7 MM. wide sing le lip seal fitted first with the 1 MM. thick lip support washer on top. 2. The back of the double lip seal should be fi lled with a light grease before fittin g ...
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Alamo 7191852C - page 108
ALAMO-INDUSTRIAL LIMITED W ARRANTY 1. LIMITED W ARRANTIES 1.01. Alamo Industrial warrants for one year from the purchase dat e to the original non-commercial, governmental, or municipal purchaser (“Purchaser”) and warrants for six months to the original commercial or industrial purchaser 1.02. Manufacturer will replace for the Pu rchas er any p ...
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Alamo 7191852C - page 109
T o keep your implement running efficien tly and safely , read your manual thoroughly and follow these dire ctions and the Safety Messages in this Ma nual. The T able of Cont ents clear ly identifies each section where you can easily find the information you need. The OCCUP A TIONAL SAFETY AND HEAL TH ACT (1928.51 Subp art C) makes these minimum sa ...
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Alamo 7191852C - page 110
P A91-SOM-02/08 P/N 7191852 C Printed U.S.A ...
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