Service Manual Manual

SECTION 3 - CHASSIS & TURNTABLE
3-66 – JLG Lift – 3121142
Motor Control Valve Disassembly
1. Place unit on bench with the motor end up.
2. Remove O-ring Plug (1J) and drain the oil from the gear-
box.
3. Remove Hydraulic Tubing Assembly (35) by loosening
fittings on both ends of tube with a wrench.
4. Using a wrench, loosen jam nuts on Elbow Fittings (36)
and remove fittings from Brake (26) and Motor Control
Valve (32).
5. Remove O-ring Plugs (21) from Motor Control Valve (32).
6. Remove Motor Control Valve (32) from Motor (10) by
removing the four Bolts (34) and washers (33).
1J. O-Ring Plug
10. H yd ra ul ic M oto r
21. Plug
24. I D P la te
25. D ri ve Sc re w
26. Hydraulic Brake
32. Motor Control Valve
33. Lockwasher
34. Hex Bolt
35. Hyd ra ul ic Tu bi ng
36. Elb ow
Figure 3-37. Swing Drive - Motor Control Valve Disassembly