SECTION 3 - CHASSIS & TURNTABLE
3120740
– JLG Lift –
3-63
3.15 SWING MOTOR (EATON) (PRIOR TO
S/N 0300068040)
Cleanliness is extremely important when repairing hydraulic
motors. Work in a clean area. Before disconnecting the hydrau-
lic lines, clean the port area of the motor. Before disassembly,
drain oil from the motor. Then plug the ports and thoroughly
clean the exterior of the motor. Check the output shaft,
remove any burrs, nicks, or sharp edges.
Disassembly
1.
Clamp the motor in a vise so the shaft is vertical and the
end cap is on the top. Clamp on the mounting flange,
use just enough clamping force to hold the motor
securely. Protect the mounting flange with soft vise
jaws.
2.
Remove the 7 cap screws from the end cap and disas-
semble the motor as shown.
3.
Unclamp the motor and remove the output shaft, thrust
needle bearing, and thrust bearing race.
4.
Clamp the motor in a vise so the mounting flange is on
top.Clamp across the port area.
Do not clamp on motor
housing.
Use just enough clamping force to hold the
motor securely.
5.
Remove the four cap screws that hold the mounting
flange to the motor housing.
THESE SCREWS WERE LOCTITED DURING ASSEMBLY. DO NOT EXCEED 500 IN.
LBS (56 NM) OF REMOVAL TORQUE
If the Loctite is holding the screws too tightly, heat the motor
housing, with a propane torch, while turning screw. Apply
heat to where the screw threads into the motor housing.
1.
Seal
2.
Spacer Plate
3.
Seal
4.
Geroler
5.
Seal
6.
End Cap
7.
Capscrew
8.
Drive
Figure 3-42. End Cap Removal
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