Danfoss PAH Series Service Manual
Pah 2-6.3/paht 2-6.3/paht c 2-6.3 and paht g 2-6.3 disassembling and assembling
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Summary of Contents for Danfoss PAH Series
- Page 1 Service guide PAH, PAHT, PAHT C, PAHT G pumps PAH 2-6.3/PAHT 2-6.3/PAHT C 2-6.3 and PAHT G 2-6.3 Disassembling and assembling HPP.danfoss.com...
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Page 2: Table Of Contents
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Table of Contents Contents Introduction ..................2 Disassembling the pump . -
Page 3: Disassembling The Pump
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Disassembling the pump 1. Tools required for dismantling. Caution: Avoid scratching the sealing 2. Remove the parallel key and unscrew the surface on the shaft front cover. - Page 4 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 7. Remove the housing. 8. Remove the cylinder barrel. 9. Remove the pistons and the retainer plate from the cylinder barrel. NB: Items 10.1.a. and 10.1.b. concern PAH 2, PAHT 2, PAHT C 2 and PAHT G 2 only 10.1.a.
- Page 5 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 NB: Items 10.2.a. through 10.2.c. concern PAH 4-6.3, PAHT 3.2-6.3, PAHT C 3.2-6.3 and PAHT G 3.2-6.3 only 10.2.a. Remove the retainer guide. 10.2.b. Remove the spring guide. 10.2.c.
- Page 6 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 13. Remove the five O-rings and the five back-up O-rings. 14. Remove the port plate from the flange. 15. Wash all parts and replace all seals 16.
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Page 7: Inspection
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Inspection 2.1. Port plate and valve plate 2. Hold a ruler against the surface of the 1. Neither port plate nor valve plate must plates and check the tightness against a show any sign of wear. -
Page 8: Cylinder Barrel
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 2.3. Cylinder barrel 2. Check that the bushings are free from seizure and large scratches, and ensure 1. Check the outer bearing surface for large that the pistons can move freely in the wear grooves (not critical). -
Page 9: Assembling
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 2. Remove swash plate and guide pin. Guide pin Assembling WARNING: Important: Do not use silicone when assembling the It is essential that the pump is serviced in pump. - Page 10 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Guide pin 4. Mount the port plate in its right position 3. Mount the O-ring on the flange. using the pin as guide. 5. Mount the valve plate with seals on the 6.
- Page 11 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 9.1 NB: Items 9.1.a through 9.1.c concern PAH 2, PAHT 2, PAHT C 2 and PAHT G 2 only 9.1.a. Mount the stop. 9.1.b. Mount the spring in the centre hole. 9.1.c.
- Page 12 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 9.2.c. Mount the retainer guide on the spring 9.2.d. Mount the retainer plate on the guide. retainer guide. 9.3 NB: The following items concern PAH 2-6.3, PAHT 2-6.3 and PAHT G 2-6.3 only 10.
- Page 13 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 13. Place the screw in the center hole. 14. Tighten to a torque of 10 ±1 Nm. Alignment hole Guide pin 15. Mount the pump housing using the pin 16.
- Page 14 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 19. Wet the shaft seal with water and mount it in the front cover. Ensure that it is 20. Mount the washer with the edge pressed to the bottom.
- Page 15 Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 25. Press the shaft seal in position. 26. Remove the bush. 27. Mount the front cover and align it to the screw holes. 28. Tighten the screws to a torque of 7 Nm. 180R9094 / 521B0985 / DKCFN.PI.011.N5.02 / 09.2015...
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Page 16: Spare Parts List For Pah / Paht / Paht C 2
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Spare parts list for PAH / PAHT / PAHT C 2 Pos. Qnt. Designation Material 1 Shaft bush, torpedo 1 Press bush 1 Housing AISI 304 / PEEK 1 Pin AISI 316 4 Screw... -
Page 17: Spare Parts List For Paht G 2
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Spare parts list for PAHT G 2 Pos. Qnt. Designation Material 1 Shaft bush, torpedo 1 Press bush 1 Housing AISI 304 / PEEK 1 Pin AISI 316 4 Screw AISI 316... -
Page 18: Spare Parts List For Pah / Paht / Paht C 3.2-6.3
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Spare parts list for PAH / PAHT / PAHT C 3.2-6.3 Pos. Qnt. Designation Material 1 Shaft bush, torpedo 1 Press bush 1 Housing AISI 304 / PEEK 1 Pin AISI 316 4 Screw... -
Page 19: Spare Parts List For Paht G 3.2-6.3
Instruction Disassembling and assembling PAH 2-6.3, PAHT 2-6.3, PAHT C 2-6.3 and PAHT G 2-6.3 Spare parts list for PAHT G 3.2-6.3 Pos. Qnt. Designation Material 1 Shaft bush, torpedo 1 Press bush 1 Housing AISI 304 / PEEK 1 Pin AISI 316 4 Screw AISI 316... - Page 20 Danfoss A/S High Pressure Pumps Nordborgvej 81 DK-6430 Nordborg Denmark | 20 © Danfoss | DCS (im) | 2015.09 180R9094 | 521B0985 | DKCFN.PI.011.N5.02...