Bearing Housing, 2000 Series, SAE A, Char Lynn 2000 Series disc valve geroler motor repair Disassembly manual

Disassembly

Cleanliness is extremely important when repairing a
hydraulic motor. Work in a clean area. Before disconnecting
the lines, clean the port area of the motor thoroughly. Use
a wire brush to remove foreign material and debris from
around the exterior joints of the motor. Check the shaft and
key slot, remove all nicks, burrs or sharp edges that might
damage the bearing housing seals when installing the shaft
and bearing assembly. Before starting the disassembly
procedures, drain the oil from inside the motor.

1. Place the motor in a vise with the output shaft down.
Clamp across the mounting flange of the motor not
the housing. Excessive clamping pressure will cause
distortion. When clamping, use some protective
device on the vise, such as special soft jaws, pieces
of hard rubber or board.
Although not all drawings show the motor in a vise, we
recommend that you keep the motor in the vise during
disassembly and reassembly. Follow the clamping
procedures explained throughout the manual

2. Remove 4 bolts from motor.

3. Lift valve housing straight up. If done carefully the
pins, springs, balance ring assembly, and valve will
remain on the valve plate.

4. Carefully remove 76,0 [3.00] diameter seal from
valve housing.
5. Remove drain plug—with seal, from
valve housing.
6. Remove 2 pins and 2 springs from balance ring
assembly, see Figure 5.

7. Remove balance ring assembly.
8. Remove inner and outer face seals from
balance ring.
9. Remove the valve.

10. (A) Remove the valve plate.
11. (A) Remove the 76,0 [3.00] diameter seal from
valve plate.
12. (A) Remove the valve drive.

10. (B) Remove the Valve Drive and Retaining Ring
11. (B) Remove valve plate and 76.0 [3.00] diameter seal
from valve plate
12. (B) Remove drive retainer

13. Remove the Geroler. Be sure to retain the rollers in
the outer ring if they are loose.
14. Remove the drive.
15. Remove the 76,0 [3.00] diameter seal from
wear plate, see Figure 7.

16. Remove the wear plate.
17. Remove the shaft face seal from the wear plate.
18. Remove the 76,0 [3.00] diameter seal from
bearing housing.

19. You may need a press to remove shaft and bearing
assembly from bearing housing. (Key must be
removed before removing shaft.)

20. Use a small screwdriver to remove shaft seal,
back-up washer and exclusion seal from bearing
housing, see Figure 10. Do not damage bore of
housing.
NNote: Individual parts of shaft and bearing assembly are not
sold separately. Replace as a unit.

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