JLG 1100S Service Manual - Manual (Page 93)

SECTION 3 - CHASSIS & TURNTABLE
3121256 – JLG Lift – 3-51
Motor Control Valve Assembly
1. Lay assembly down with motor ports facing up.
Remove the two plastic plugs in the motor ports,
being careful not to loose the O-ring in each port.
Assemble the Motor control Valve (32) onto the
Motor (10) with Bolt (34) and Lock Washers (33).
Torque Bolts (33) 23 to 27 ft-lbs. (32 to 38 Nm).
NOTE: Be sure to align the holes in the control valve with
the motor ports.
2. Install Elbow Fittings (36) into Brake (26) and torque
13 to 15 ft-lbs. (18 to 21 Nm).
3. Install Elbow Fittings (36) into Motor Control Valve
(32) and torque to 13 to 15 ft-lbs. (18 to 21 Nm).
4. Assemble Tube (35) into Elbow Fittings (36) and
torque 13 to 15 ft-lbs. (18 to 21 Nm).
5. Install O-ring Plugs (21) into Motor Control Valve
(32) and torque 30 to 31 ft-lbs. (42 to 43 Nm).
6. Pressure test brake, tube and control valve connec-
tions by applying 3000 psi (207 bar) pressure to the
brake bleed port and holding for 1 minute. Check for
leaks at the control-valve-motor interface and the
tube connections. Release pressure.
7. Place I.D. Plate (24) onto Housing (1G) with two
Drive Screws (25). I.D. Plate (24) is to be inline with
O-ring Plug (1J) as shown on assembly print.
1J. O-Ring Plug
10. Hydraulic Motor
21. Plug
24. ID Plate 25. Drive Screw
26. Hydraulic Brake
32. Motor Control Valve
33. Lockwasher 34. Hex Bolt
35. Hydraulic Tubing
36. Elbow
Figure 3-42. Swing Drive - Motor Control Valve Assembly