JLG 530LRT, Service And Maintenance Manual

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SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3121781 3-65
Pump Coupling Assembly
ALLOW ENGINE AND COMPONENTS TO COOL DOWN BEFORE SERVIC-
ING.
REMOVAL
1. Disable machine operation. Disconnect the battery
positive (+) terminal.
2. Remove exhaust system and pump assemblies, as
necessary.
3. Remove the five bolts, washers and nuts, plus the
two starter bolts holding the coupler housing (1) to
the engine block plate. Support starter, do not hang
by electrical wiring. Remove the coupler housing 1).
4. Remove the five pump coupler bolts to remove the
pump coupling from the engine flywheel/mounting
plate (3). Remove coupling plate (2).
INSTALLATION
1. Follow Removal Steps in reverse.
NOTE: Apply Loctite® #242 to bolts.
Torque coupling to flywheel bolts to 20 - 25 ft. lb.
(27.1 - 33.8 Nm).
Torque coupler housing to engine bolts to
13 - 15 ft. lb. (17.6 - 20.3 Nm).
1
1. Coupler Housing
2. Pump Coupler 3. Engine Flywheel/Coupler Mounting Plate
4. Starter Bolts
Figure 3-57. Pump Coupling Assembly (All Engines)