Danfoss H1P 045 Service Manual page 61

Service Manual
H1P 045/053/060/068 Axial Piston Single Pumps
Minor Repair
© Danfoss | June 2020
2. Remove and discard gasket (K150).
3. Remove thrust washer (K500).
Note thrust washer orientation.
4. Use a small hook to remove pressure balance plate (S200) and seal (S300); discard seal.
Note plate orientation.
5. Remove coupling (K200). Use a small hook if necessary.
6. Remove the charge pump outer ring (S150), and gearset (S100).
7. Remove valve plate (S250) with seal (S300); discard seal.
8. Inspect the components for wear, scratches or pitting.
9. Carefully inspect the valve and pressure balance plates.
Scratches on these components will cause a loss of charge pressure. If any component shows signs of
wear, scratching or pitting, replace it.
10. Install new seals (S300) in the valve (S250) and pressure balance (S200) plates.
11. Install valve plate (S250) in the same orientation as removed.
12. Lubricate and install charge pump (S100) and outer ring (S150).
13. Install charge pump coupling (K200).
14. Install pressure balance plate (S200) in the same orientation as removed.
15. Install the thrust washer (K500); coated side goes toward charge pump coupling (K200).
16. Install a new cover gasket. (K150).
17. If removed, install guide pins (K450).
18. Install the auxiliary pad or charge pump cover and cap screws.
19. Using a 8 mm internal hex wrench, torque the cap screws (K400) to 92 N•m [68 lbf•ft].
Torque sequence
1
3
Ensure proper torque on aux pad screws (K400) and if necessary, replace screws.
20. Reinstall auxiliary pump or pad seal (K250) and shipping cover ((K300).
If necessary, remove auxiliary pump, or shipping cover (K300) and pad seal (K250) as shown below:
4
2
P106 346E
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