315
M6.2-1452-001
02 Rev. 6/09
STEERING
Hydraulic Steer Motor
Hydraulic Steer Motor
Disassembly
Cleanliness is extremely important when repairing hy-
draulic motors. Work in a clean area. Before discon-
necting hydraulic lines, clean port area of motor. Before
disassembly, drain oil from motor. Then plug ports and
thoroughly clean exterior of motor. Check output shaft,
remove any burrs, nicks, or sharp edges.
Tools Required:
• Torque wrench, 34 Nm (25 ft lb) capacity
• Ratchet wrench
• 5/16 in - 12 point heavy duty socket, 56 Nm
(41.3 ft lb) capacity
• 5/16 in - 6 point/torx (E10) heavy duty socket,
56 Nm (41.3 ft lb) capacity
• Small flat blade screwdriver
• 3/16 in hex key
• Rubber hammer
1. Using protective material on vise jaws, clamp mo-
tor in a vise so shaft is vertical and end cap is on
top. Clamp on mounting flange, using just enough
clamping force to securely hold motor.
2. Remove screws (6) from end cap (5) and disas-
semble motor as shown in Figure 21925. Do not
disassemble geroler (4).
3. Refer to Figure 21926. Unclamp motor and remove
output shaft (3), thrust needle bearing (2) and
thrust bearing race (1).
4. Clamp motor in vise so mounting flange is on top.
Clamp across port area. Do not clamp on motor
housing. Use just enough clamping force to hold
motor securely.
5. Remove screws securing mounting flange to motor
housing.
Thread locking adhesive was applied to screws during
assembly. Do not exceed 56 Nm (41.3 ft lb) of removal
torque.
Refer to Figure 21927. Since thread locking adhesive
was applied to screws, heat may have to be applied to
motor housing to loosen screws. Use propane torch
and apply just enough heat to remove screws (1). Do
not overheat motor housing or mounting flange.
Figure 21925
1 Seal
2Drive
3Spacer Plate
4 Geroler
5 End Cap
6 Cap Screw
Figure 21926
1 Thrust Bearing Race
2 Thrust Needle Bearing
3 Output Shaft
Crown 2001 PF13078-1 Rev. 6/09
To Next Page
Loading...