Bearing and Shaft Replacement
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.
Removal
1. Using a snap-ring pliers, remove the outer snap-ring (J200).
2. (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.
C
Caution
Do not damage the housing bore, shaft or bearing when removing the seal.
(For 89/100 and 210/250) Use a small pry device against the raised edge of the seal carrier to remove
the seal/carrier assembly. Discard the assembly.
3. Use a press or gear puller to press down on the shaft. Using a snap-ring pliers, remove the inner snap-
ring (J200).
4. Remove the shaft (J100) and bearing (J150) from the pump. It may be necessary to tap the shaft to
dislodge it from the internal pump components. 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.
5. Remove snap-ring (J300). Press bearing (J150) from shaft.
Inspection
Inspect the shaft and bearing for wear, scratching and pits. Rotate the bearing and feel for roughness.
Replace damaged components.
Reassemby
1. Press bearing (J150) on shaft. Install snap-ring (J300).
2. Install the shaft/bearing assembly into the pump. Rotate the shaft to align it with the block and
charge pump splines. Press down on the shaft and replace the inner snap-ring (J200).
3. Cover end of the shaft with an installation sleeve to protect the seal during installation. Lubricate the
seal. Tap on the seal replacing tool or an appropriate deep-socket to press in the seal. Remove the
protective cover. Refer to
Seal Installation Tool
illustration below for installation sleeve and seal
installation tool part numbers and dimensions.
Service Manual
H1 Pumps 069/078, 089/100, 115/130, 147/165, 210/250
Minor Repair
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©
Danfoss | May 2018
520L0848 | AX00000087en-US0308
