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.
Shaft assembly (45/53 shown)
J150
J100
J200
J250
J260
J275
J300
J150
Protective
sleeve
1. Remove the retaining ring (J300) from the housing to release the shaft/seal/bearing subassembly.
2. Pry on the lip of the seal carrier (J275) to remove it from the pump.
3. Remove the seal carrier.
4. Remove and discard O-ring (J260).
5. Press the seal (J250) out of the carrier and discard.
6. 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.
7. Remove the retaining ring (J200) using retaining ring pliers. Press the bearing off the shaft.
8. Inspect the shaft journals for wear, scratching, and pits.
9. Check the splines for fretting; replace if damaged.
10. Rotate the bearing, if it does not rotate smoothly, replace it.
Service Manual
H1T 045/053, 060/068 Axial Piston Tandem Pumps
Minor repair
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©
Danfoss | September 2020
AX152886481761en-000405