Danfoss PAHT 50-90, PAHT G 50-90 Service guide
Service guide
PAHT / PAHT G pumps
PAHT 50-90 / PAHT G 50-90
Disassembling and assembling
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Service guide | Disassembling and assembling PAHT and PAHT G 50-90
Table of Contents |
1. |
Introduction............................................................................................................................................................... |
2 |
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2. |
Disassembling the pump...................................................................................................................................... |
2 |
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3. |
Inspection................................................................................................................................................................... |
9 |
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4. |
Assembly................................................................................................................................................................... |
10 |
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5. |
Spare parts list for PAHT 50-90.......................................................................................................................... |
18 |
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6. |
Exploded view for PAHT 50-90.......................................................................................................................... |
19 |
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7. |
Spare parts list for PAHT G 50-90..................................................................................................................... |
20 |
|
8. |
Exploded view for PAHT G 50-90...................................................................................................................... |
21 |
|
9. |
Tool sets..................................................................................................................................................................... |
22 |
1. Introduction |
NOTE: If the pump is disassembled within the warranty period, the pump is no longer covered |
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by the warranty. |
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Tools required for dismantling the pump |
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2 |
180R9172 | 521B1092 | DKCFN.PI.012.D4.02 | 06.2017 |
Service guide | Disassembling and assembling PAHT and PAHT G 50-90
2.Disassembling the pump
1. Loosen and remove 4 screws.
3. Remove spring.
5. Remove 2 guide pins.
2. Remove mounting flange.
4.Remove shaft sealing.
Caution: Avoid to scratch the sealing surface on the shaft.
6. Remove O-ring.
180R9172 | 521B1092 | DKCFN.PI.012.D4.02 | 06.2017 |
3 |
Service guide | Disassembling and assembling PAHT and PAHT G 50-90
7. Turn pump upside down.
9. Remove cover.
10. Remove pistons and retainer plate.
8. Loosen and remove 10 screws.
11. Remove retainer ball
4 |
180R9172 | 521B1092 | DKCFN.PI.012.D4.02 | 06.2017 |
Service guide | Disassembling and assembling PAHT and PAHT G 50-90
12. Remove retainer
14. Remove cylinder barrel.
16. Remove 1 guide pin.
13. Remove spring
15. Remove port plate.
17.Turn pump upside down and remove 2 washers.
180R9172 | 521B1092 | DKCFN.PI.012.D4.02 | 06.2017 |
5 |
Service guide | Disassembling and assembling PAHT and PAHT G 50-90
18. Loosen and remove 6 screws.
20. Remove 1 guide pin.
22. Loosen thrust plate from cylinder barrel.
19. Remove port flange.
21. Remove O-ring from port flange.
23. Remove thrust plate.
6 |
180R9172 | 521B1092 | DKCFN.PI.012.D4.02 | 06.2017 |
Service guide | Disassembling and assembling PAHT and PAHT G 50-90
24. Remove O-rings from thrust plate.
26. Remove 1 guide pin from end cover plate.
28. Remove swash plate.
25. Remove backup rings from thrust plate.
27.Loosen and remove screw from swash plate.
29. Remove 2 guide pins from end cover plate.
180R9172 | 521B1092 | DKCFN.PI.012.D4.02 | 06.2017 |
7 |
Service guide | Disassembling and assembling PAHT and PAHT G 50-90
30. Remove O-ring from end cover plate.
31.Remove shaft sealing from mounting flange.
Pump
8 |
180R9172 | 521B1092 | DKCFN.PI.012.D4.02 | 06.2017 |
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