JLG 4394RT Service Manual - Manual (Page 141)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3121249 – JLG Lift – 3-105
Pump Coupling
ALLOW ENGINE AND COMPONENTS TO COOL DOWN BEFORE
SERVICING.
REMOVAL:
1. Disable machine operation.
2. Remove exhaust system and pumps (refer to Figure
3-72. and Figure 3-76.).
3. Remove the bolts and washers to remove the muffler
mounting bracket (1) from the coupling cover (2).
4. Remove the bolts on the coupling cover to remove
the cover from the engine.
5. Remove the bolts on the coupling (3) to remove the
coupling from the engine.
INSTALLATION:
1. Follow Removal Steps in reverse.
1
2
3
4
1. Muffler Mounting Bracket 2. Coupling Cover 3. Coupling 4. Engine
Figure 3-77. Pump Coupling (GM Engine)