JLG 4394RT Service Manual - Manual (Page 142)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3-106 – JLG Lift – 3121249
Engine Removal
ALLOW ENGINE AND COMPONENTS TO COOL DOWN BEFORE
SERVICING.
REMOVAL:
1. Disable machine operation.
2. Remove exhaust system, air cleaner system and
hydraulic pumps (refer to Figure 3-72., Figure 3-73.
and Figure 3-76.).
3. Disconnect, cap and label all hoses connected to
engine (4). Disconnect and label all electrical wiring
connected to engine.
4. Support engine with lifting device capable of lifting
500 lbs (227 kg) (refer to engine manual for proper
lifting information).
5. Remove the bolts (1), washers (2) and nuts (3) at the
four corners of the engine.
6. Slowly lift the engine up and out of the engine com-
partment.
BE CAREFUL NOT TO DAMAGE THE RADIATOR FAN ON THE
RADIATOR HOUSING WHEN LIFTING THE ENGINE.
INSTALLATION:
1. Follow Removal Steps in reverse.
1, 2, 3
1, 2, 3
4
5
1. Bolt, 1/2"-13NC x 1 1/2"
2. Washer
3. Nut
4. Engine
5. Engine Tray
Figure 3-78. Engine Removal (GM Engine)