S1-AM009-L - DDKS Industries, hydraulic components distributor

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ASSEMBLY TOOL DRAWINGS FIGURE 4 TRUNNION ASSEMBLY TOOL SERIES A* B† C REF. PV6 & in. 1.75 .997/.996 1/2-13 x 3/4 dp. 039-91348 PVT6 mm 44.45 25.32/25.30 PV10 & in. 1.75 .997/.996 1/2-13 x 3/4 dp. 039-91348 PVT10 mm 44.45 25.32/25.30 PV15 & in. 2.00 1.247/1.246 3/4-10 x 1.00 dp. 039-91349 PVT15 mm 50.8 31.67/31.65 PV20 & in. 2.25 1.497/1.496 3/4-10 x 1.00 dp. 039-91350 PVT20 mm 57.15 38.02/38.00 PV29 & in. 2.25 1.497/1.496 3/4-10 x 1.00 dp. 039-91350 PVT29 mm 57.15 38.02/38.00 B A C Material - steel, or rework ref. trunnion to B diameter FIGURE 5 TRUNNION REMOVAL TOOL SERIES A B C D E F DIA DIA THD. DIA PV6 & in. 1.75 1.50 .56 4.25 1/2-13 2.50 PVT6 mm 44.45 38.1 14.2 10.8 63.5 PV10 & in. 1.75 1.50 .56 4.25 1/2-13 2.50 PVT10 mm 44.45 38.1 14.2 10.8 63.5 PV15 & in. 2.00 1.75 .81 4.50 3/4-10 2.75 PVT15 mm 50.8 44.5 20.6 11.4 69.8 PV20 & in. 2.25 2.00 .81 4.75 3/4-10 3.00 PVT20 mm 57.15 50.8 20.6 12.1 76.2 PV29 & in. 2.25 2.00 .81 4.75 3/4-10 3.00 PVT29 mm 57.15 50.8 20.6 12.1 76.2 F B C 1 A (min.) 3/4 D (min.) 2 3 4 E item description material 1 sleeve steel 2 washer steel 3 nut hardened steel GR-5 4 all-thread rod hardened steel GR-5 10
UNIT DISASSEMBLY DISASSEMBLY PROCEDURE Disassemble the pump according to the instructions in this section. Please refer to the exploded view (Fig. 6). Pump disassembly for inspection should be limited to the following cases: a) Malfunction or oil leakage resulting from damage or wear and tear. b) Trouble-shooting procedures described herein do not solve the problem. Disassembly should be done only as far as necessary to replace or repair worn parts. It should be noted that assembly and disassembly should be performed in a clean environment. Caution: Springs assembled in the pump are normally set under high compression and are dangerous to any workman whenever disassembly is performed. Serious bodily injury may be inflicted during disassembly due to the springs’ sudden release. It is usually not necessary to replace spring 18 fitted in cylinder barrel 3. Do not replace the spring unless absolutely necessary. After disassembly, the internal parts should be coated with a film of clean oil and protected from dirt and moisture. It is recommended that the length of the protruding part of the adjusting screw 22 on the pump, items 11 and 18 (as applicable) on the control 28 be measured and noted as this information will prove useful during assembly. Care must be taken to avoid dropping, damaging or contaminating the machined parts and the PC valve. 1. Drain housing 1 fluid. 2. Position the pump with the drain port up. 3. For tandem pumps, remove the external pump, adapter 69 and the coupling, 70. 4. Loosen nut 45 and remove the adjusting screw 22 and thread seal 54. 5. Remove four screws 28 or 28 item 13 and then remove valve assembly 28 with O-ring 28 item 10. If pump contains a torque limiter, remove tube line from torque limiter to compensator. Remove four screws holding torque limiter to pump housing, then remove torque limiter asembly. 6. Remove four screws 46. First loosen two of the diagonally positioned screws, then loosen the other two diagonally positioned screws. Remove the screws and carefully raise port block 2. If gasket 24 clings to block and housing, tap the side of block opposite PC valve with a hammer. Note: Port plate 4 may cling to the block 2 due to oil film. DO NOT ALLOW THE PLATE TO FALL AND BE DAMAGED. 7. Remove port plate 4 gently from barrel face. 8. Place pump onto work bench with the shaft in a horizontal position. Remove barrel 3 with piston assembly 5, holddown ball 14, retainer plate 15 and dowel 56 simultaneously. 9. Place barrel 3 on a clean cloth or plastic film. Before removing pistons, check for excess play. Hold the side of retainer plate 15 and gently remove the piston assembly 5. 10. It is recommended that the retainer plate 15 be marked when removing the first piston and that the pistons be placed in order of removal due to the individual piston’s fit between the rim of the shoe and retainer plate 15. 11. Remove holddown ball 14 and dowels 56. Note: With the given procedures (1) through (11), necessary inspection of the pump can be performed. Prior to inspection, the disassembled parts are to be handled as follows: a) Place housing 1 on the fixture with the shaft downward. Cover the housing with a dustproof plastic film. b) Place port block 2 on the work bench with the assembled guide sleeve 23 and needle 11
Page 1 and 2: DENISON HYDRAULICS axial piston, va
Page 3 and 4: DATA TYPICAL CHARACTERISTICS Specif
Page 5 and 6: DESCRIPTION OPERATION OF PUMP These
Page 7 and 8: TROUBLESHOOTING STARTUP PROCEDURE (
Page 9: ASSEMBLY TOOL DRAWINGS .039 R. (1mm
Page 13 and 14: UNIT DISASSEMBLY COMPENSATOR DISASS
Page 15 and 16: PARTS INSPECTION no. part inspectio
Page 17 and 18: EXPLODED VIEW OF PUMP ITEM 28 (‘J
Page 19 and 20: PARTS LIST item description PV6/PVT
Page 21 and 22: ASSEMBLY PROCEDURE CLEANING AND INS
Page 23 and 24: ASSEMBLY PROCEDURE TORQUE ON HOUSIN
Page 25 and 26: ASSEMBLY PROCEDURE T’ POWER LIMIT
Page 27 and 28: TEST PROCEDURE TEST CONDITIONS PUMP
Page 29 and 30: TEST PROCEDURE ‘T’ POWER LIMITE
Page 31 and 32: PV6 INSTALLATION 2.79 (70,9) 3.74 (
Page 33 and 34: PV15 INSTALLATION 3.46 (87,9) 4.72
Page 35 and 36: PV29 INSTALLATION 4.13 (104,9) 5.83
Page 37 and 38: PVT10 INSTALLATION 4.06 11.58 MAXIM
Page 39 and 40: PVT20 INSTALLATION 1.93 (49,0) SAE
Page 41 and 42: ‘J’ & ‘K’TORQUE LIMITER INS
Page 43 and 44: 43 ORDERING CODE
Page 45 and 46: 45 NOTES
Page 47 and 48: 47 NOTES

S1-AM009-L - DDKS Industries, hydraulic components distributor

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