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Bush Hog RMB 1660 - page 1
©2010 Alamo Group Inc. $0.00 Published 10/10 Part No. 50068816C OPERA T OR’S MANUAL BUSH HOG ® 2501 Grif fin A ve. Selma, AL 36703 334-874-2700 www .bushhog.com REAR-MOUNT BOOM MOWER This Operator' s Manual is an integral p art of the safe operation of this machine and must be maintaine d with the un it at all times. READ, UNDERST AND, and ...
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Bush Hog RMB 1660 - page 2
T o the Owner/Operator/Dealer All implements with moving p arts are potentially hazardous . There is no substitute for a cautious, safe-minded operator who recognizes the poten tial hazards and follows reasona ble safety practices. The manufacturer has designed this impleme nt to be used with all its safety equipme nt properly attach ed to minimize ...
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Bush Hog RMB 1660 - page 3
In order to reduce accident s and enhance the safe operatio n of mowers, Bush Hog Division, in cooperation with other indust ry manufact urers has dev eloped the AEM/F EMA Industrial and Ag ricultural Mower Safety Practices video and guide book. The video will familiarize and instruct mower-tractor operators in safe practices when using industrial ...
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Bush Hog RMB 1660 - page 4
Alamo Gr oup Ag. Division is willing to pr ovide 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: ___________ ___ ...
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Bush Hog RMB 1660 - page 5
T ABLE OF CONTENTS SAFETY SECTION ........ ................................................. .......................................... ........... 1- 1 General Safety Instructions and Practic es ................... ................ ................. ................ ................ . ........ ............ 1-2 Operator Safety I nstructions and Pra ...
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Bush Hog RMB 1660 - page 6
STARTING THE TRACTOR . .... ... ... ... .... ... ............. ... ... ... ............. .... ... ... ............. ... ... .... ............. ... . .................. 4-10 PRE-OPERATION INSPECTION AND SERVI CE .............. ............................................................................ .4 - 1 1 Tractor Pre-Operation Inspection/Servi ...
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Bush Hog RMB 1660 - page 7
Safety Section 1-1 © 2010 Alamo Group Inc. SAFETY SECTION ...
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Bush Hog RMB 1660 - page 8
SAFETY RMB 1660 11/10 Safety Section 1-2 © 2010 Alamo Group Inc. SAFETY General Safety Instruct ions and Practices A careful operator is the best opera tor . Safety is of primary importance to the manufacturer and should be to the owner/operator . Most accident s ca n be avo ided by bein g aware of your equipment, your surrounding s, and observing ...
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Bush Hog RMB 1660 - page 9
SAFETY RMB 1660 11/10 Safety Section 1-3 © 2010 Alamo Group Inc. SAFETY Operator Safety Instr uctions and Practices Engine Exhaust, some of its constitue nts, a nd cert ain vehicle component s contain or emit chemicals known to the st ate of California to cause cancer and bir th defects or other reproductive harm. (S G- 30 ) Battery posts, ter min ...
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Bush Hog RMB 1660 - page 10
SAFETY RMB 1660 11/10 Safety Section 1-4 © 2010 Alamo Group Inc. SAFETY KEEP A W A Y FROM ROT A TING ELEMEN TS to prevent ent anglement and possible serious injury or death. (SG-24) Never allow children to play on or around T ractor or Implement. Children can slip or fall off the Equipment and be injured or killed. Children can cause th e Implemen ...
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Bush Hog RMB 1660 - page 11
SAFETY RMB 1660 11/10 Safety Section 1-5 © 2010 Alamo Group Inc. SAFETY Connecting & Disconnecting Implem ent Safety Instructi ons & Practices The rota ting parts of th is machine continue to rotate even af ter the T ractor has been turned of f. The ope rator shoul d remain in his seat for 6 0 seconds af ter the brake has be en set, the PT ...
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Bush Hog RMB 1660 - page 12
SAFETY RMB 1660 11/10 Safety Section 1-6 © 2010 Alamo Group Inc. SAFETY Equipment Operation Safety In structions and Practices Never leave the T ractor and Implement unattended while the Implement is in the lif ted position. Accidental operation of lif ting leve r or a hydraulic failure may cause sudden dr op of unit with injury or death by crushi ...
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Bush Hog RMB 1660 - page 13
SAFETY RMB 1660 11/10 Safety Section 1-7 © 2010 Alamo Group Inc. SAFETY Follow these guidelines to red uce the risk of equipment and grass fires w hile operating, serv icing, and repairing the Mower and T ractor: -Equip the T ractor with a fire extinguisher in an accessible location. -Do Not operate the Mower on a T ractor with an underframe exhau ...
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Bush Hog RMB 1660 - page 14
SAFETY RMB 1660 11/10 Safety Section 1-8 © 2010 Alamo Group Inc. SAFETY Flail Mowers are capa ble under adverse conditions of throwing objects for great distances ( 300 feet or more) and causing seri ous injury or death. Follow safety messages carefully . STOP MOWING IF P ASSERSBY AR E WITHIN 300 FEET UNLESS: -Front and Rear Deflectors , Chain Gua ...
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Bush Hog RMB 1660 - page 15
SAFETY RMB 1660 11/10 Safety Section 1-9 © 2010 Alamo Group Inc. SAFETY Do not mount or dismou nt the Tr actor while the tractor is moving. Mount the T ractor only when the T ractor and all moving part s are completely stopped. (SG-12) S tart tr actor only when properly seated in the T ractor seat. S tarting a tractor in gear can resu lt in injury ...
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Bush Hog RMB 1660 - page 16
SAFETY RMB 1660 11/10 Safety Section 1-10 © 2010 Alamo Group Inc. SAFETY Do Not operate this equip men t in areas wher e in se ct s such as bees may attack you and/or cause you to lose contro l of the equip ment. If you must enter in such areas, use a tractor with an enclosed Cab and close the windows to pr event insect s from entering. If a tract ...
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Bush Hog RMB 1660 - page 17
SAFETY RMB 1660 11/10 Safety Section 1-11 © 2010 Alamo Group Inc. SAFETY Mow at the speed that you can safely oper ate and control the tractor and mower . The correct mowing spee d depends on terrain cond itio n and grass type, density , and height of cut. Normal ground sp eed range is from 2 to 5 mph( 3-8 kph). Use slow mowing speeds when operati ...
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Bush Hog RMB 1660 - page 18
SAFETY RMB 1660 11/10 Safety Section 1-12 © 2010 Alamo Group Inc. SAFETY Maintenance and Service Saf ety Instructions and Practices Do not let the Blad es turn when the Mower Deck is raised for any reason, including clearan ce or for turning. Raising the Mower deck exposes the Cutting Blades which cr eates a poten tially serious ha zard and could ...
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Bush Hog RMB 1660 - page 19
SAFETY RMB 1660 11/10 Safety Section 1-13 © 2010 Alamo Group Inc. SAFETY Always maint ain the safety signs in go od readab le conditio n. If the safety signs are missing, damaged, or unreadable , obtain and insta ll r eplacement safety signs immediately . (S G-5) Do not modify or alter this Implement. Do not permit anyone to modify or alter this I ...
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Bush Hog RMB 1660 - page 20
SAFETY RMB 1660 11/10 Safety Section 1-14 © 2010 Alamo Group Inc. SAFETY T ransporting Safety Inst ructions and Practices Replace bent or b roken blades with new blades. NEVER A TTEMPT TO STRAIGHTEN, WELD, OR WELD HARDF ACING ON BLAD ES SINCE THIS WILL LIKEL Y CRACK OR OTHERWISE DAMAGE THE BLADE WITH SUBSEQUENT F AILURE AND POSSIBL Y CAUSE SERIOUS ...
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Bush Hog RMB 1660 - page 21
SAFETY RMB 1660 11/10 Safety Section 1-15 © 2010 Alamo Group Inc. SAFETY Secure the boom an d mower head in the transpo rt position before traveling o n public roads. Never transport on public roads with t he boom and mower hea d extended. Always disengage and lock out the hydraulic controls for the boom mower be fore transporting. Inadvertent boo ...
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Bush Hog RMB 1660 - page 22
SAFETY RMB 1660 11/10 Safety Section 1-16 © 2010 Alamo Group Inc. SAFETY Concluding Safety In structions and Practices 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 sp eeds. Unders tand the Tractor and Implement and how it handles before ...
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Bush Hog RMB 1660 - page 23
SAFETY RMB 1660 11/10 Safety Section 1-17 © 2010 Alamo Group Inc. SAFETY Decal Location NOTE: Bush Hog supplies safety decals on this produ ct to promote safe oper ation. Dam age to th e decals ma y occur while in shippin g, use, or rec onditioning. Bush Hog cares about the safety of its customers, operators, and bystanders, and will re place the ...
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Bush Hog RMB 1660 - page 24
SAFETY RMB 1660 11/10 Safety Section 1-18 © 2010 Alamo Group Inc. SAFETY ITEM P ART NO. QTY LEVEL DESCRIPTION 1. D433 1 Decal Sheet Multiple Haza rd 2. D388 1 D ecal She et Driveline Hazard s 3. D355 1 IMPOR T ANT Check Chains 4. 02962764 6 W ARNING Pinch Points/Scissors 5. 02962765 1 DANGER Multiple Haza rd/Crushing 6. 02965262 1 W ARNING Oil Lea ...
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Bush Hog RMB 1660 - page 25
SAFETY RMB 1660 11/10 Safety Section 1-19 © 2010 Alamo Group Inc. SAFETY ITEM P ART NO. QTY LEVEL DESCRIPTION 1. 50061049 1 LOGO Bush Hog Logo (22” ) 2. 24028 1 W ARNING Rubber Defle ctors 3. 02965141 1 WARNING Thrown Object s 4. 1290738 1 INSTRUCT Euro Mu lti-Instruction Flail Head 5. 09.821.35 1 MUL TI-DECAL E uro Multi-Instruction 6. 1458392 ...
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Bush Hog RMB 1660 - page 26
SAFETY RMB 1660 11/10 Safety Section 1-20 © 2010 Alamo Group Inc. SAFETY Decal Description Multi Hazard Decal Sheet P/N D433 Decal D433 consists of the following multi-hazards. ...
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Bush Hog RMB 1660 - page 27
SAFETY RMB 1660 11/10 Safety Section 1-21 © 2010 Alamo Group Inc. SAFETY Driveline Hazards P/N D388 Decal D388 consist s of th e following multi-hazards. ...
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Bush Hog RMB 1660 - page 28
SAFETY RMB 1660 11/10 Safety Section 1-22 © 2010 Alamo Group Inc. SAFETY IMPOR T ANT! Keep Sway Bar Chains T ight P/N D355 W ARNING! Pinch Points P/N 02962764 DANGER! Crushing and Pinch Point s. Moving machinery p arts can pinch or crush or fall- which may cause injury or death. P/N 02962765 W ARNING! Failure to INSPECT and REP AIR or REPLACE Hose ...
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Bush Hog RMB 1660 - page 29
SAFETY RMB 1660 11/10 Safety Section 1-23 © 2010 Alamo Group Inc. SAFETY DANGER! Crushing Hazard Serious injury can result fr om contact with moving boom. S ta y clea r of boom swing are. P/N D354 P/N 50065309 Logo Product Name: Bush Hog (1 4.85”) P/N 50068740 MODEL NAME - RMB 1660 P/N 50061049 Logo Product Name: Bush Hog (2 2”) ...
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Bush Hog RMB 1660 - page 30
SAFETY RMB 1660 11/10 Safety Section 1-24 © 2010 Alamo Group Inc. SAFETY INFORMA TION - Safety Booklet D524 Read Operato r ’s Manual! The operator ’s ma nual is located inside this canister . If the manual is missing order one from you r dealer . P/N 46505.01 Slow Moving V ehicle Decal. Keep SMV reflector clean and visible. DO NOT transpo rt o ...
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Bush Hog RMB 1660 - page 31
SAFETY RMB 1660 11/10 Safety Section 1-25 © 2010 Alamo Group Inc. SAFETY TO A VOID SERIOUS INJURY OR DEA TH only operate on T ractor eq uipped with fully enclosed CAB. P/N D569 W ARNING! Inspect Rubber Deflector and replace if damaged or notice ably worn. Do not operate mower if deflector is missing or dama ge d. P/N 24028 W ARNING! - Cutting whil ...
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Bush Hog RMB 1660 - page 32
SAFETY RMB 1660 11/10 Safety Section 1-26 © 2010 Alamo Group Inc. SAFETY Euro Multi Decal P/N 09.821.35 Red Reflector . Keep reflectors clean and visible. P/N 1458392 Amber Reflector . Keep reflectors clean and visible. P/N 1458393 Grease 8 Hour s P/N 09.810.01 ...
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Bush Hog RMB 1660 - page 33
SAFETY RMB 1660 11/10 Safety Section 1-27 © 2010 Alamo Group Inc. SAFETY Federal Laws and Re gulations This section is intended to explain in broad terms the conc ept and effect of federal laws and regulations conce rning employer and employee eq uipment operators. This section is no t intended as a legal interpretation of the law and should not b ...
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Bush Hog RMB 1660 - page 34
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Bush Hog RMB 1660 - page 35
Introduction Section 2-1 © 2010 Alamo Group Inc. INTRODUCTION SECTION ...
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Bush Hog RMB 1660 - page 36
INTRODUCTION RMB 1660 11/10 Introduction Section 2-2 © 2010 Alamo Group Inc. INTRODUCTION This Hydraulic Boom Mower is des ign ed with care and built with quality materials by skilled w orkers. Proper assembly , maintenance, and operating practices, as described in this manual, will help the owner /operator get years of satisfactory service from t ...
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Bush Hog RMB 1660 - page 37
INTRODUCTION RMB 1660 11/10 Introduction Section 2-3 © 2010 Alamo Group Inc. INTRODUCTION The Bush Hog Boom Mowe r is primarily designed fo r grass cutting and trimming hedges. This mower is assembled for oper ation with 540 RPM tractor input only . With proper use and maintena nce the mower should provide years of depen dable service. For Non-Agr ...
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Bush Hog RMB 1660 - page 38
INTRODUCTION RMB 1660 11/10 Introduction Section 2-4 © 2010 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 instr uctions, and know how to operate correctly both the Mowe r and Power Unit. 2. Fill out the W arranty Ca ...
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Bush Hog RMB 1660 - page 39
Assembly Section 3-1 © 2010 Alamo Group In c. ASSEMBL Y SECTION ...
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Bush Hog RMB 1660 - page 40
ASSEMBLY RMB 1660 11/10 Assembly Section 3-2 © 2010 Alamo Group Inc. ASSEMBL Y TRACTOR SELECTION MINIMUM TRACTOR WEIG HTS - including ballast weight if necessary: All models – 6,600 lbs. MINIMUM HP REQUIREMENTS: All models – 60 PTO HP LINKAGE: Category 2 P. T. O . S H A F T: T ractor must be equipped with a live drive PT O to enable forward mo ...
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Bush Hog RMB 1660 - page 41
ASSEMBLY RMB 1660 11/10 Assembly Section 3-3 © 2010 Alamo Group In c. ASSEMBL Y TRACTOR PREP ARA TION Fitting Operator Guard Use tractor with safety glass windows if possible and fi t Operator guard using the h ooks provided. Shape me sh to cover all vu lnerable areas. Remember the d river must be looking through mesh and/or poly carbonate glazing ...
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Bush Hog RMB 1660 - page 42
ASSEMBLY RMB 1660 11/10 Assembly Section 3-4 © 2010 Alamo Group Inc. ASSEMBL Y Suggestions to increase st ability: • Increasing rear wheel track; a tractor with a wider whee l track is more stable. • Ballasting the wheel; it is pre ferable to use external weights but liq uid can be added to around 75% of the tire volume – water with anti-fre ...
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Bush Hog RMB 1660 - page 43
ASSEMBLY RMB 1660 11/10 Assembly Section 3-5 © 2010 Alamo Group In c. ASSEMBL Y A TT ACHMENT TO TRACT OR • Reverse tractor squarely up to the machine. • Connect the tractors sway bars - selecting the rear most hole in th e machines lower link brackets that allow th e machine to be moun ted without contactin g the tractor . • Ensure that the ...
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Bush Hog RMB 1660 - page 44
ASSEMBLY RMB 1660 11/10 Assembly Section 3-6 © 2010 Alamo Group Inc. ASSEMBL Y • Fit the machine to top link • Raise machine on tractor linka ge until the tractors PTO and the machines gearbox stub sh aft are approximately in line. NOTE: As lift occurs be aware t he machine m ay tilt slightly . The four levers of machin e controls must be oper ...
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Bush Hog RMB 1660 - page 45
ASSEMBLY RMB 1660 11/10 Assembly Section 3-7 © 2010 Alamo Group In c. ASSEMBL Y • Replace the stabilizer quad rant pin and secure with the clip pin. NOTE: The quadrant pin must be fitted in the lowest hole on the stabilizer in order that it acts as a “Bottom S top”. This will prevent th e machine from dropping when stopped and permit the tra ...
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Bush Hog RMB 1660 - page 46
ASSEMBLY RMB 1660 11/10 Assembly Section 3-8 © 2010 Alamo Group Inc. ASSEMBL Y Check that the welded in pins betw een the stabilizers jaws are in contac t with the mounting rail. If not the machine must be lowered to the ground and the next higher hole on the stabilizer valve selected, the machine raised and cont act checked. Repeat again in the t ...
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Bush Hog RMB 1660 - page 47
ASSEMBLY RMB 1660 11/10 Assembly Section 3-9 © 2010 Alamo Group In c. ASSEMBL Y • Adjust using the mounting hole that allows the P .T .O. and gearbox shaft to align as near as possible. • Fit positioning stop s - these remain in position until tractor is change d • Lower tractor linka ge control so that the machine weight is taken by the yok ...
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Bush Hog RMB 1660 - page 48
ASSEMBLY RMB 1660 11/10 Assembly Section 3-10 © 2010 Alamo Group Inc. ASSEMBL Y • Raise the stand legs in to the work position and secure with lock pins. • T ighten check chains and/or stabilizer bars. • Fit machine controls into the cab. • Measure P .T . O. and cut to dimension shown. Note: For subsequent use on different tractors measure ...
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Bush Hog RMB 1660 - page 49
ASSEMBLY RMB 1660 11/10 Assembly Section 3-11 © 2010 Alamo Group In c. ASSEMBL Y • Fit PTO shaf t in position. • Attach safety chain s (A) on driveline to a convenient lo cation to prev ent rotation of the shaft gu arding. • Ensure the Lift Cylin der shut-off valve and Slew Cylinder shut-of f valve are open. • Operate the lif t up controls ...
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Bush Hog RMB 1660 - page 50
ASSEMBLY RMB 1660 11/10 Assembly Section 3-12 © 2010 Alamo Group Inc. ASSEMBL Y Flail Head Att achment Operate machine controls to m aneuver boom arm into flailhead att achment. The bottom of the hose connection bracket must b e parallel with th e ground. Refer to torque ch art for correct bolt torque settings. With the arms at half reach and the ...
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Bush Hog RMB 1660 - page 51
ASSEMBLY RMB 1660 11/10 Assembly Section 3-13 © 2010 Alamo Group In c. ASSEMBL Y OIL REQUIREMENTS Ta n k Fill reservoir to approximately 2” be low the top of the tank. The capacity is approximately 180 liters (47.5 gallons). Do not overfill the tank. FITTING CONTROL UNIT IN CAB Cable Controlled Models The control unit is bolted to a mounting bra ...
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Bush Hog RMB 1660 - page 52
ASSEMBLY RMB 1660 11/10 Assembly Section 3-14 © 2010 Alamo Group Inc. ASSEMBL Y RUNNING UP PROCEDURE 1. Ensure that the rotor control valv e is in "STOP" positi on, start tractor , engage P .T .O. allow the oil to circulate through th e return line filter for about 5 mi nutes without operation of the armhead control lever . 2. Operate th ...
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Bush Hog RMB 1660 - page 53
ASSEMBLY RMB 1660 11/10 Assembly Section 3-15 © 2010 Alamo Group In c. ASSEMBL Y STORAGE If machine is to be lef t standing for an extended p er iod of time, lightly coat the ex posed portions of the cylinder rods with grease. Subseq uently this grease should be wiped off before the rods are moved. If the machine h as to be stored out side tie a p ...
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Bush Hog RMB 1660 - page 54
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Bush Hog RMB 1660 - page 55
Operation Sec tio n 4- 1 © 2010 Alamo Group In c. OPERA TION SECTION ...
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Bush Hog RMB 1660 - page 56
OPERATION RMB 1660 11 /10 Operation Section 4-2 © 2010 Alamo Group In c. OPERA TION BUSH HOG RMB 1660 OPERATING INSTRUCTIONS Bush Hog Boom Mowers are man ufactured with quality material by skilled workers. Thes e mowers are designed for cutting gra ss and small weeds. The mowe r is equipped with protective deflectors to prevent objects be ing thro ...
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Bush Hog RMB 1660 - page 57
OPERATION RMB 1660 11 /10 Operation Section 4-3 © 2010 Alamo Group Inc. OPERA TION 1. St andard Equipment and Specifications T ractor Requirement s: Minimum T ractor HP Requirements 60 HP PTO Minimum T ractor W eight 6614lbs (3000kg) Machine Specifications: Maximum Machine Reach 16’-5” (5.0m) Machine weight with flailhead 2434lbs (1 104kg ) Po ...
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Bush Hog RMB 1660 - page 58
OPERATION RMB 1660 11 /10 Operation Section 4-4 © 2010 Alamo Group In c. 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 asso ...
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Bush Hog RMB 1660 - page 59
OPERATION RMB 1660 11 /10 Operation Section 4-5 © 2010 Alamo Group Inc. OPERA TION 3. TRACT OR REQUIREMENTS In addition to tractor horsep ower a nd size re quir ed to o per ate th e mower un it, the tra c tor m ust also be prope rly equipped to provide operat or protecti on, to alert approaching vehicle drivers of the tractor ’ s presence, and t ...
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Bush Hog RMB 1660 - page 60
OPERATION RMB 1660 11 /10 Operation Section 4-6 © 2010 Alamo Group In c. OPERA TION 3.3 T ractor Lighting and SMV Emblem If the tractor will be operated near or traveled on a public roadw ay it must be equipped wit h proper warning lighting and a Slow Mo ving V ehicle (SMV) emblem which ar e clearly visible fro m the rear of the unit. Most tractor ...
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Bush Hog RMB 1660 - page 61
OPERATION RMB 1660 11 /10 Operation Section 4-7 © 2010 Alamo Group Inc. OPERA TION 3.6 T ractor Horsepower The horsepower requir ed to operate the mower depends on many factors including veget ation to be cut, terrai n condition, operato r experience, and condition of the mo wer and tractor . For most mowing condition, the 1660 boom mower re quire ...
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Bush Hog RMB 1660 - page 62
OPERATION RMB 1660 11 /10 Operation Section 4-8 © 2010 Alamo Group In c. OPERA TION 3.9 Front End Weight A minimum of 20% tota l tractor weight must be maintained on the tractor fro nt end at all times. Front end weight is critical to mainta in steering control and to pr event the tracto r from rearin g up while driving. If the front end is too li ...
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Bush Hog RMB 1660 - page 63
OPERATION RMB 1660 11 /10 Operation Section 4-9 © 2010 Alamo Group Inc. OPERA TION 4.1 Boarding the T r actor Use both hands and equippe d handrails and steps for supp ort when boarding the tractor . Never use control levers for support wh en mounting the tractor . Seat your self in the operator ’s seat and secur e the seat belt around you. Neve ...
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Bush Hog RMB 1660 - page 64
OPERATION RMB 1660 11/10 O peration Section 4-10 © 2010 Alamo Group In c. OPERA TION 5. ST ARTING THE TRACTOR The operat or must have a co mplete und erstanding of the p lacement, fun ction, and op erational us e of all tractor cont rols before starting th e tractor . Review the tractor operator ’s manu al and consult an authorized dealer for tr ...
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Bush Hog RMB 1660 - page 65
OPERATION RMB 1660 11/10 O peration Section 4-11 © 2010 Alamo Group Inc. OPERA TION 6. PRE-OPERA TION INSPECTION AND SER VICE Before each use, a pre- operation inspection and service of the implement and tractor must be perform ed. This includes routine mainten ance and scheduled lubricat ion, inspecting that all safety devices are equipped and fu ...
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Bush Hog RMB 1660 - page 66
OPERATION RMB 1660 11/10 O peration Section 4-12 © 2010 Alamo Group In c. OPERA TION 6.2 Boom Unit Pre-Operati on Inspection and Service Inspect and service the boom arm a nd head prior to operatio n. Damaged and/or broken p arts should be repaired an d/or replaced immediately . T o ensure th e unit is ready for operat ion, conduct the following: ...
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Bush Hog RMB 1660 - page 67
OPERATION RMB 1660 11/10 O peration Section 4-13 © 2010 Alamo Group Inc. OPERA TION FRAME ASSEMBL Y • Ensure all bolt s and screws are in position and are properly to rq ue d . • Ensure all pins are in place and fastened with screws. • Ensure frame is pro perly mounted to tractor and hardware is properly installed and tighten ed. OPS-B- 0021 ...
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Bush Hog RMB 1660 - page 68
OPERATION RMB 1660 11/10 O peration Section 4-14 © 2010 Alamo Group In c. OPERA TION Relieve hydraulic pressure prio r to doing any maintenance or rep air work on the Implement. Place the Mower Head on the grou nd or secur e ly supp orte d on blocks o r st ands, disengage the PTO, and turn off the engine. Push and pull the control Le ve rs or Joys ...
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Bush Hog RMB 1660 - page 69
OPERATION RMB 1660 11/10 O peration Section 4-15 © 2010 Alamo Group Inc. OPERA TION Attention: Oil Filler Cap is also the Pressure Relief Cap. Remove cap slo wly to relieve pressure before re moving cap completely . S tay clear to prevent being scalded with hot o il that may spray out of the t ank that is still pressurized and may cause serious in ...
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Bush Hog RMB 1660 - page 70
OPERATION RMB 1660 11/10 O peration Section 4-16 © 2010 Alamo Group In c. OPERA TION SICKLE BAR INSPECTION • Inspect blades and blade bolts for looseness and excessive wear . Replace damaged, worn, and missing blades. • Ensure guards ar e in position and not damaged. Rep lace worn, br oken, and miss ing guards. • Inspect that all bo lts and ...
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Bush Hog RMB 1660 - page 71
OPERATION RMB 1660 11/10 O peration Section 4-17 © 2010 Alamo Group Inc. OPERA TION Boom Mower PRE-OP ERA TION Inspection Mower ID#:__________________________Make:______________________ Date:_______________________________S hift:_______________________ Before conducting the inspection, make sur e the tractor engin e is off, all rotation has stoppe ...
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Bush Hog RMB 1660 - page 72
OPERATION RMB 1660 11/10 O peration Section 4-18 © 2010 Alamo Group In c. OPERA TION T ractor PRE-OPERA TION Inspection T ractor ID#:___________ _____________Make:________________________ Date:______________________________Shift:________________________ Before conducting the inspection, make sur e the tractor engin e is off, all rotation has stopp ...
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Bush Hog RMB 1660 - page 73
OPERATION RMB 1660 11/10 O peration Section 4-19 © 2010 Alamo Group Inc. OPERA TION 7. MACHINE CONTROLS 7.1 Cable Controls - Identification & Function ...
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Bush Hog RMB 1660 - page 74
OPERATION RMB 1660 11/10 O peration Section 4-20 © 2010 Alamo Group In c. OPERA TION 7.2 Lever Functions ...
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Bush Hog RMB 1660 - page 75
OPERATION RMB 1660 11/10 O peration Section 4-21 © 2010 Alamo Group Inc. OPERA TION 7.3 Rotor Control ...
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Bush Hog RMB 1660 - page 76
OPERATION RMB 1660 11/10 O peration Section 4-22 © 2010 Alamo Group In c. OPERA TION 8. BREAKA W A Y The machine is fitted with a hydraulic breakaway device which protect s the structur e of the machine should a n unforeseen o bstacle be encounter ed. NOTE: The breakaway functi on does not relieve th e operator of his resp onsibility to drive care ...
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Bush Hog RMB 1660 - page 77
OPERATION RMB 1660 11/10 O peration Section 4-23 © 2010 Alamo Group Inc. OPERA TION 9. ROT OR OPERA TING SPEED Ensure that the ro tor control lever is in the ‘ST OP’ position before engaging the PT O shaft. Allow the oil to circulate for a minute or so before op er ating the armhead levers. Positio n the flail head in a safe position, increase ...
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Bush Hog RMB 1660 - page 78
OPERATION RMB 1660 11/10 O peration Section 4-24 © 2010 Alamo Group In c. OPERA TION 12. Hedge Cutting Procedure Cut the side and bottom of the field side first. This leaves the maximum thickness of hedge on the road side to prevent the possibilit y of any debris bei ng thrown through the hedge into the p ath of oncoming vehicles. Cut the side and ...
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Bush Hog RMB 1660 - page 79
OPERATION RMB 1660 11/10 O peration Section 4-25 © 2010 Alamo Group Inc. OPERA TION 12.1 Working on Adverse Slopes When working high with the reach fully extended, it is possible for the main arm balance to go ‘Over- Center ’ and take the weight of f the lift cylinder . A restrictor in the gland connectio n of the lift ram prevent s sudden unp ...
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Bush Hog RMB 1660 - page 80
OPERATION RMB 1660 11/10 O peration Section 4-26 © 2010 Alamo Group In c. OPERA TION 14. DRIVING THE TRACTOR AND IMPLEMENT Safe tractor transport req uires the operator to po ssess a thorou gh knowledge of the model b eing operated and precaution s to take while driving with a n attached implement. Ensure the trac tor has the capacity to handle th ...
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Bush Hog RMB 1660 - page 81
OPERATION RMB 1660 11/10 O peration Section 4-27 © 2010 Alamo Group Inc. OPERA TION 14.1 St arting the T ractor The procedure to st art the tractor is model specific. Refer to the tractor operator’s manual for st arting procedures for your p articular tractor . Consult an authorized dealer if the st arting procedure is unclear . Ensure the 3-poi ...
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Bush Hog RMB 1660 - page 82
OPERATION RMB 1660 11/10 O peration Section 4-28 © 2010 Alamo Group In c. OPERA TION 14.3 Driving the T ractor and Bo om 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 fro ...
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Bush Hog RMB 1660 - page 83
OPERATION RMB 1660 11/10 O peration Section 4-29 © 2010 Alamo Group Inc. OPERA TION 15.1 Foreign Debris Hazards Before mowing, inspe ct the area to make sure there are no fore ign objects that the mo wer blades could hit or b ecome entangled w ith. Remov e all foreign object s and debris. If objects are too big to remove, ma rk them cl early and b ...
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Bush Hog RMB 1660 - page 84
OPERATION RMB 1660 11/10 O peration Section 4-30 © 2010 Alamo Group In c. OPERA TION Flail Mowers are capa ble under adverse conditions of throwing objects for great distances ( 300 feet or more) and causing seri ous injury or death. Follow safety messages carefully . STOP MOWING IF P ASSERSBY AR E WITHIN 300 FEET UNLESS: -Front and Rear Deflector ...
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Bush Hog RMB 1660 - page 85
OPERATION RMB 1660 11/10 O peration Section 4-31 © 2010 Alamo Group Inc. OPERA TION 15.4 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 a t its full rated PTO speed to maintain blade spe ed for a clean cut. Re ...
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Bush Hog RMB 1660 - page 86
OPERATION RMB 1660 11/10 O peration Section 4-32 © 2010 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. Seri ...
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Bush Hog RMB 1660 - page 87
OPERATION RMB 1660 11/10 O peration Section 4-33 © 2010 Alamo Group Inc. OPERA TION 15.6 Operating the Att ached Mower Heads Refer to the Assembly Sectio n of this manual to ensure the h ead is properly atta ched to the boom hitch an d hydraulic line s are prop erly connect ed. There are obvio us and hidden potential hazards in the operation of th ...
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Bush Hog RMB 1660 - page 88
OPERATION RMB 1660 11/10 O peration Section 4-34 © 2010 Alamo Group In c. OPERA TION 15.7 Shutting Down the Att ached 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 engag ...
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Bush Hog RMB 1660 - page 89
OPERATION RMB 1660 11/10 O peration Section 4-35 © 2010 Alamo Group Inc. OPERA TION 16. TRACTOR, BOOM, AND A TT ACHED HEAD STORAGE Properly prep aring and storing the unit at the end of the se ason is critical to mainta ining its appearan ce and to help ensure years of dep endable service. The following are suggested storage pr ocedures: Thoroughl ...
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Bush Hog RMB 1660 - page 90
OPERATION RMB 1660 11/10 O peration Section 4-36 © 2010 Alamo Group In c. OPERA TION 17.1 T ransport Position • Select ROTOR OFF and wait until rotor has stopped tu rning • Ensure that the “LIFT” and “ANGL E FLOA T” are switched “OFF” • Select “SLEW” mode on the control assembly . • Operate “SLEW IN” • Operate “LIFT ...
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Bush Hog RMB 1660 - page 91
OPERATION RMB 1660 11/10 O peration Section 4-37 © 2010 Alamo Group Inc. OPERA TION 18. TRANSPORT POSITION-Head Att ached The machine is transported in line to the rear of the tractor with a minimum of 1 1-1/4” clearance between the tension link and the rear cross member of the tractor cab. 19. TRANSPORT POSITION-Head Removal With the flail head ...
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Bush Hog RMB 1660 - page 92
OPERATION RMB 1660 11/10 O peration Section 4-38 © 2010 Alamo Group In c. OPERA TION 19.1 T ransport Height There is no fixed dimension for tra nsport height. It will vary depending on the he ight that the machine is carried and the de gr ee o f arm fo ld that the rea r of the cab will allow . For the majority of inst allations the transport heigh ...
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Bush Hog RMB 1660 - page 93
OPERATION RMB 1660 11/10 O peration Section 4-39 © 2010 Alamo Group Inc. OPERA TION Never allow children or other persons to ride on the T ractor or Implement. Falling off can result in serious injury or death. (SG-1 0) Make cert ain that the “Slow Moving V ehicle” (SMV) sign is inst alled in such a wa y as to be clearly visible and legible. W ...
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Bush Hog RMB 1660 - page 94
OPERATION RMB 1660 11/10 O peration Section 4-40 © 2010 Alamo Group In c. OPERA TION When operating on public roa ds, have consideration for other r oad users. Pull to the side of the road oc casionally to allow all following traffic to pass. Do no t exceed the legal speed limit set in your state or muni cipality for agricultural tractors. Always ...
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Bush Hog RMB 1660 - page 95
OPERATION RMB 1660 11/10 O peration Section 4-41 © 2010 Alamo Group Inc. OPERA TION 19.3 Hauling the T racto r and Implement Before transporting a loade d tractor and implement, measure the height and width dimensions and g ross weight of the complete loaded unit. Ensure that the load will be in compliance wit h the legal limits set for the areas ...
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Bush Hog RMB 1660 - page 96
OPERATION RMB 1660 11/10 O peration Section 4-42 © 2010 Alamo Group In c. OPERA TION 20. TROUBLESHOOTING GUIDE TROUBLE POSSIBLE CAUSE POSSIBLE REMEDY Hydraulic Cylinder Hydraulic level low . Check hydraulic fluid level. Not Working (See sight gauge on tank) Pump not functioning Attempt to use another cylinder or properly . pressure gauge. Cylinder ...
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Bush Hog RMB 1660 - page 97
OPERATION RMB 1660 11/10 O peration Section 4-43 © 2010 Alamo Group Inc. OPERA TION TROUBLE POSSIBLE CAUSE POSSIBLE REMEDY Excessive Vibration s Blade Broken. Replace blades, in sets . Blade carrier bent. Replace carrier . Blade hub not properly Remove hub, check t apered spline seated on shaf t shaf t, clean and replace. New Blade or bolts ma tch ...
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Bush Hog RMB 1660 - page 98
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Bush Hog RMB 1660 - page 99
Maintenanc e Sec tio n 5- 1 © 2010 Alamo Group Inc. MAINTENANCE SECTION ...
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Bush Hog RMB 1660 - page 100
MAINTENANCE RMB 1660 11/10 Maintenance Section 5-2 © 2010 Alamo Group Inc. MAINTENANCE LUBRICA TION General Grease all locatio ns shown da ily . PTO SHAFT INSPECTION Regularly check the PT O guards for damage a nd ensure the anti rota tion chains are in place and that their anchor point s are in good condition. Do not operat e the machine with any ...
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Bush Hog RMB 1660 - page 101
MAINTENANCE RMB 1660 11/10 Maintenance Section 5-3 © 2010 Alamo Group Inc. MAINTENANCE HYDRAULIC SYSTEM Oil Supply Check daily the oil leve l in the reservoir . No fixed time period can be quo ted for oil chan ges as operating co nditions and mainte nance st and ards vary so widely . Burnt and scorched oil odors and the oil darkening and thicke ni ...
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Bush Hog RMB 1660 - page 102
MAINTENANCE RMB 1660 11/10 Maintenance Section 5-4 © 2010 Alamo Group Inc. MAINTENANCE Hose Replacement 1. Rep lace one hose at a time to avoid the risk of wrong connections. 2. Whe n the hose is screwed to an additional fittin g or union, use a second sp anner on the union to avoid breaking both seals. 3. Do not use jointing compound o n the thre ...
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Bush Hog RMB 1660 - page 103
MAINTENANCE RMB 1660 11/10 Maintenance Section 5-5 © 2010 Alamo Group Inc. MAINTENANCE FLAILHEAD 1. Frequently inspe ct the rotor assembly for damaged or mi ssing flails. Bolt s and nu ts securin g the flails to the rotor should be regularly checked and kept tight. The correct torque setting for these locknut s is 135 Nm (100 lbs/ft.). Use only th ...
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Bush Hog RMB 1660 - page 104
MAINTENANCE RMB 1660 11/10 Maintenance Section 5-6 © 2010 Alamo Group Inc. MAINTENANCE PTO GEARBOX Refill the gearbox after the first initia l 50 hours and thereafter yearly or 500 hour intervals. or whichever comes first. Drainage of the gearbox for an oil change is via the drai n plug located on the base of the gearbox. T o refill or for ‘topp ...
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Bush Hog RMB 1660 - page 105
MAINTENANCE RMB 1660 11/10 Maintenance Section 5-7 © 2010 Alamo Group Inc. MAINTENANCE PROPER TORQUE V ALUES FOR F ASTENERS The chart lists the correct tightening to rque for fastener s. When bolts are to be tightene d or replaced, refer to this chart to determine the grade of bolts and the prop er torque except when specific torque values are ass ...
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Bush Hog RMB 1660 - page 106
LIMITED W ARRANTY Bush Hog warrant s to the origina l purchaser of any new Bush Hog equipment, purchas ed from an au thorized Bush Hog dealer , that the equipme nt be free from defect s in ma terial and workma nship for a period of one (1) year for non-co ...
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Bush Hog RMB 1660 - page 107
T O THE OWNER/OPERA TOR/DEALER T o keep your implement running ef ficiently and safely , read your manual thoroughly a nd follow these directions and the Safety Messages in this Manua l. The T able of Contents clearly id entifies each section wher e you can easily find the informa tio n yo u ne ed . The OCCUP A TIONAL SAFETY AND HEAL TH ACT (19 28. ...
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Bush Hog RMB 1660 - page 108
RMB 1660-1 1/10 P/N 50068816C Printed U.S.A RMB 1660 REAR MOUNT BOOM MOWER ...
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