6. Using a 5 mm internal hex wrench, torque the cap screws (D250) to 13.3 N•m [9.8 lbf•ft].
Torque sequence
2
3
4
5
6
1
7. Connect wiring (D640).
8. Install new plastic plugs with O-rings (D610) using the special tool, press plugs in and turn 45 degrees
clockwise.
If control will continue to be under warranty, install new sealing wax of a different color (original wax
is blue). Pumps without sealing wax installed will not be warrantied.
9. Install protection bracket (D672).
10. Install screws (D674). Torque to 5 N•m [3.7 lbf•ft].
Shaft, Seal and Bearing Repair
The input shaft, seal, and front bearing are serviceable without disassembling the entire pump. Orient the
pump on the work surface so the shaft is pointing up.
1. Remove the retaining ring (J200) using retaining ring pliers. Press the bearing off the shaft.
2. Pull the shaft (J100) with bearing (J150) out of the pump.
If necessary, tap lightly on the shaft to dislodge it from the cylinder block.
C
Caution
Do not damage the housing bore, shaft or bearing when removing the shaft and bearing.
3. For 069/078, 115/130, 147/165 — Puncture the seal (J250) and use a slide-hammer type puller to
remove the seal. Discard the seal.
4. For 89/100, 210/250 — Use a small pry device against the raised edge of the seal carrier to remove
the seal/carrier assembly. Discard the assembly.
5. Use a press or gear puller to press down on the shaft.
6. Using a snap-ring pliers, remove the inner snap-ring (J200).
7. Pull the shaft (J100) with bearing (J150) out of the pump.
If necessary, tap lightly on the shaft to dislodge it from the cylinder block.
C
Caution
Do not damage the housing bore, shaft or bearing when removing the shaft and bearing.
8. After you remove the shaft, take care not to move or jar the pump. Reassembly can be difficult if the
internal components move while the shaft is out.
9. Remove snap-ring (J300).
10. Press bearing (J150) from shaft.
Service Manual
H1P 069—H1P 250 Axial Piston Single Pumps
Minor Repair
52 |
©
Danfoss | September 2020
AX152886482551en-000504
