Shaft removal
1. Position the pump with the shaft facing up.
If the unit is positioned horizontally, or moved or jarred while the shaft is out, the cylinder block could
move out of place, making shaft installation difficult.
2. Remove the three or four screws (L70) holding the retainer plate (L60) and seal carrier (L30) to the
housing, using a 10 mm hex wrench (042 unit), a 5 mm internal hex wrench (055 through 100 units),
or a 6 mm internal hex wrench (130 through 250 units). Remove the retainer plate.
Certain earlier production units use a one piece retainer plate and seal carrier.
3. After removing the screws, the spring force on the shaft may move the seal carrier out of its bore by
approximately 5 mm [1/4 inch]. If the seal carrier does not move from its bore, pry it from its bore
and/or lightly tap the end of the shaft with a soft mallet.
4. Remove the O-ring (L50) from the seal carrier and discard.
5. Place seal carrier and seal in an arbor press and press out the seal (L40).
6. Remove shaft (L100) and roller bearing assembly (L10) from pump. You can transfer the bearing
assembly to the new shaft.
7. Using snap-ring pliers, remove the retaining ring (L20) that secures the roller bearing assembly.
Remove the roller bearing assembly.
Service Manual
Series T90 Axial Piston Pumps
Minor repair
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©
Danfoss | March 2020
AX216086485386en-000101