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Hitachi 312350E - page 1
312350E Instr uctions , Repair and P ar ts Dyna-Star ® HYDRA ULIC RECIPROCA T OR AND PUMP - For lubricating fluids onl y - 10:1 Ratio Universal Pump and Recipr ocator 600 psi (4.1 MP a, 41 bar) Maximum Hydr aulic Input Pressure 7500 psi (51 MP a, 517 bar) Maximum Fluid Outlet Pressure Model 247540: Pump, 60 lb A u tomatic Lube Pu mp Module Length ...
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Hitachi 312350E - page 2
Warnings 2 312350E Wa r n i n g s The f ollowing w arnings are for the set up , use, groun ding, maintenance , and repair of this equipment. The e xclama- tion point symbol alerts you to a gener al warning and the hazard symbol ref ers to procedure-specif ic risk. Refer back to these wa r nings. Add itional, product- specific warnings ma y be fou n ...
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Hitachi 312350E - page 3
Warnings 312350E 3 MO VING P ARTS HAZARD Movin g par ts can pinch or amputate fingers and other bod y par ts. • K eep clear of mo ving par ts. • Do not op erate equipme nt with prot ective guards or covers remov ed. • Pressurized equipmen t can star t without warning. Bef ore chec king, mo ving, or ser vicing equipment, f ollow the Pressure R ...
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Hitachi 312350E - page 4
Installation 4 312350E Installation Key: A F ollower plate B W eep tube C Fluid outlet line (to gun) D Drain v alve (required) E Ground wire F Hydraulic retur n line, minimum 3/4 inch I.D . (required) G Hydraulic outlet, 3/4” npt (f) H Retur n line shut-off valv e, minimum 3/4 inch (required) J Hydraulic inlet, 3/4” npt (m) K T ee, 3/4” npt L ...
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Hitachi 312350E - page 5
Installation 312350E 5 Pump Accessories Follo wer Plate (A): ensures a good prim e. Place f ollower plate on grease and rota te while press ing fir mly to le v el material. Order par t nu mber 247700 f or 60# and 90# automatic lube pump modules; 247701 f or 120# refinery reser voir; or 247702 f or 400# refiner y reservoir . Pump Outlet Drain V alve ...
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Hitachi 312350E - page 6
Installation 6 312350E Gr ounding T o reduce the risk of static sparking, ground pump . Check yo ur loc al electric al code for detailed grounding instructions f or yo ur area and type of equipment. • Pump: Use g round wire and clamp as shown in F IG . 3. Order Groun ding Wire and Clamp Kit, P ar t No . 222 011. • Hydraulic Hoses and Fl uid Out ...
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Hitachi 312350E - page 7
Operation 312350E 7 Operation Pressure Relief Pr ocedure The system pressure m ust be manually relie v ed to pre v ent the system from starting or dispensing accidentally . Follo w this pressure relief procedure whenev er you are instructe d to: • reliev e pressure. • check or service any system equipment. • install or c lean nozzle. F or the ...
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Hitachi 312350E - page 8
Operation 8 312350E Star ting Pump 1. T ur n on hydr aulic pow er supply . 2. Open retu rn line shut-off valv e (H) first, then slowly open the h ydraulic supply sh ut-off v alve ( L). 3. Adjust flow contr ol valv e (Q) to limit the h ydraulic flow to no more t han 3 gpm ( 11 lpm), which is appro ximately 60 cycles per minute . 4. Adjust pressure r ...
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Hitachi 312350E - page 9
Troubleshooting 312350E 9 T r oubleshooting Prob lem Cause Solution Pump does not run. Closed dispense v alv e. Pump only runs with v alve op en. Pressure too low . Increase supply pressure using a pressure adjusting v alv e. Insufficient h ydraulic fl uid supp ly . Check h ydraulic supply . Adjust to a maximum of 3 gpm (11 lpm) flow . Clogged flu ...
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Hitachi 312350E - page 10
Service 10 312350E Service Replacing Thr oat Seals See F IG . 5. 1. Relieve pressure , page 7. 2. Disconnect reciprocator from pump . 3. Remov e f our ca pscrews ( 15) from bottom of adapter (43). T ap adapter to loosen it an d pull it off the bot- tom cap (32). 4. Remove seal (44, include d in Reciproc ator Repair Kit 247455) fro m top of adapter ...
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Hitachi 312350E - page 11
Service 312350E 11 Disconnecting Recipr ocator and Displacement Pump See F IG . 6 and Displacement Pump P ar ts, page 18. F IG . 6 1. Flush pump if possib le and stop it with displacement rod in low est position. 2. Relieve pressure , page 7. 3. Disconnect outle t hose from displacement pump . 4. Slowly loose n hydr aulic supply (60) and return (5) ...
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Hitachi 312350E - page 12
Reciprocator Repair 12 312350E Recipr ocator Repair See F IG . 7 and F IG . 9 and Reciprocator P arts, page 18. Drain Oil Out of Reciprocator Bef ore y ou begin, dr ain oil out of r eciprocator . 1. Relieve pressure , page 7. 2. Place reciprocator in a dr ain pan. F IG . 7 See F IG . 7 f or steps 1-3, e xcept wher e noted. 1. Place adapter (43) in ...
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Hitachi 312350E - page 13
Reciprocator Repair 312350E 13 F IG . 8 See F IG . 8 and Recipro cator P ar ts pa ge 18 f or steps 4-20, except where noted. 4. T ap bottom of di splacement rod (3 4) with a plastic mallet to loosen cylinder (25). 5. Grasp v alv e spool (31) and pull it off cylinder and tie rods (38). Pull cyli nder and piston off bottom cap (32). It is not nece ss ...
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Hitachi 312350E - page 14
Reciprocator Repair 14 312350E 10. Clean all sealant from thread s of any par t you ar e reusing. Apply Loctite ® 242 or P erm a-Loc ® 115 thread seala nt to first two or thre e inter nal thre ads of valv e assembly (31). If yo u remov ed capscre w (51) apply thread sea lant to first two or three inter nal threads of v alve stop (26). Apply pr im ...
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Hitachi 312350E - page 15
Reciprocator Repair 312350E 15 F IG . 11 See F IG . 11 f or steps 17- 24 e xcept where noted. 17. Place adapter (43) in a vise. Install seal s as described on page 10. Install cylinder cap (3 2). 18. If tie rods (38) were remov ed, re install them with shor t threaded end up . The other end should be screw ed about 9/16” into bo ttom cylinder cap ...
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Hitachi 312350E - page 16
Displacement Pump Repair 16 312350E Displacement Pump Repair Disassembl y See F IG . 13 f or steps 1-10, e xcept where note d. 1. If possible, flush pump . Relieve pressu re , page 7 . 2. Follo w instr uction for Disconnecting t he Recipr o- cator and Displacement Pump , page 11. 3. Clamp pump in vise. 4. Use strap wr ench to scre w shov el tube (1 ...
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Hitachi 312350E - page 17
Displacement Pump Repair 312350E 17 F IG . 13 117 116 108 113 111 † 112 † 109 102 106 † 104 † 103 110 † 106 † 114 107 Assembled / Cuta way Vie w Using nut (113), torque the pump cylinder 109 to the extension tube (114) at 45 to 55 ft-lb (61 to 75 N.m). 1 T orque the shovel rod (108) to the piston (102) at 25 to 30 ft-lb (34 to 41 N.m). ...
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Hitachi 312350E - page 18
Reciprocator Parts 18 312350E Recipr ocator P ar ts 36 37 3 39 2 30 60 4 5 61 66 60a 5a 45 29 9 7 6 51 12 1 13 25 40 13 14 32 34 38 18 20 21 20 23 17 49 22 24 58 26 1a 43 16 35 44 8 28 27 15 46 52 11 19 31 4 5 3 6 5 5 1 6 6 2 T orque to 170-180 in-lbs (19-20 N.m) 1 T orque to 42-45 in-lbs (4-5 N.m). 2 T orque to 54-56 ft- lbs (73-76 N.m). 3 T orqu ...
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Hitachi 312350E - page 19
Reciprocator Parts 312350E 19 Reciprocator P arts ▲ Replacement Danger and Warning labels, tags, and cards are av ailable at no cost. * These par ts and items 202 on page 20 are included in Kit 247455 (purchase sepa rately). † These parts are inclu ded in Kit 241623 (purchase sepa- rate ly ). Assembl y T ool 189305 required f or repair ing the ...
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Hitachi 312350E - page 20
Pump Parts 20 312350E Pump P ar ts Model 247540 60# A utomatic Lube Pump Module Length Model 247443 120# Drum Lengt h Model 247450 400# Drum Lengt h ▲ Replacement Danger an d W ar ning labels , tags, and cards are av ailab le at no cost. * These par ts are included in Kit 247455 (pur chase separate ly). See page 18 f or other parts included in th ...
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Hitachi 312350E - page 21
Technical Data 312350E 21 Te c h n i c a l D a t a T ypical Fluid Outlet Pressure Max grease ou tput pressu re..................... ................ ......... 7500 psi (5 1 MP a, 517 b ar) Max hydraulic fluid input pre ssure.................... ................ 600 psi (4.1 MPa, 41 bar) Max hydraulic fluid input volume ............ ................ ...
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Hitachi 312350E - page 22
Technica l Data 22 312350E Dimensions and Mounting Hole La y out 1/8 npt throat seal weep por t 3/4” - 16 JIC 37° flare (m) 1/2 npt(f) fluid outlet 3/4 npt Hydraulic Outlet 14.75 in. (375 mm) 41.5 in. (1054 mm) Model 247443 48.5 in. (1232 mm) Model 247450 3.5 (88.9 mm) minimum diameter clearance hole 3.536 in. (90.424 mm) 3.536 in. (90.424 mm) c ...
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Hitachi 312350E - page 23
Notes 312350E 23 Notes ...
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Hitachi 312350E - page 24
Graco Standard Warra nty 24 312350E Graco Standar d W arranty Graco warrants all equipment ref erenced in th is document which is manuf actured by Graco and bearing its name to be free from de fe c t s in material and workmanship on the date of sale to the origin al purch aser for use. With the e xception of any special, e xtended, or limited warra ...
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