SkyTrak 6036 Service Manual - Manual (Page 168)

Transmission: ZF 4 WG-98 TC
6.6 Model 6036 Legacy
6.7 TRANSMISSION REPLACEMENT
Note: Contact the JLG Service Department at
1-
877-554-5438 (Domestic) or 1-717-485-5161
(International), if internal transmission repair is required
during the warranty period.
IMPORTANT: To help ensure safety and optimum
performance, replace the transmission if it is damaged.
Refer to the appropriate parts manual for ordering
information.
Cleanliness is of extreme importance. Before attempting
to remove the transmission, thoroughly clean the exterior
of the transmission to help prevent dirt from entering
during the replacement process. Avoid spraying water or
cleaning solution onto or near the transmission shift
solenoids and other electrical components.
6.7.1 Transmission Removal
1. Park the vehicle on a firm, level surface, fully retract
the boom, raise the boom, place the travel select
lever in the (N) NEUTRAL position, place the neutral
lock lever in the NEUTRAL LOCK position, engage
the parking brake switch and shut the engine OFF.
2. Place an Accident Prevention Tag on both the
ignition key switch and steering wheel, stating that
the vehicle should not be operated. (Refer to Section
1.5, “Accident Prevention Tag Usage.”
)
3. Temporarily block up or support the boom.
4. Unlock and open the rear door. Allow the engine,
transmission and hydraulic fluid to cool.
5. Drain the hydraulic oil reservoir. (Refer to the
appropriate Owners/Operators Manual, “Hydraulic
Oil and Filter Change.”)
6. Disconnect the battery negative (-) cable (Fig. 6-4, 1)
at the battery negative (-) terminal, to prevent the
engine from starting accidentally.
Figure 6-4 Disconnect the Battery Negative (-) Cable
7. Remove six hex-head capscrews, six lockwashers
and six flat washers (Fig. 6-5, 1) securing the upper
(2) and lower (3) transmission covers to the frame.
Remove the covers.
Figure 6-5 Remove the Upper and Lower
Transmission Covers
8. Thoroughly clean the transmission and surrounding
area, including all hoses and fittings, before
proceeding.
WARNING:
Risk of severe personal
injury. NEVER lift a transmission alone; enlist
the help of at least one assistant or use a
suitable hoist or overhead crane and sling.
WARNING:
DO NOT get under a raised
boom unless the boom is blocked up. ALWAYS
block the boom before doing any servicing that
requires the boom to be up. Unexpected
lowering of the boom may cause death or
serious injury.
WARNING:
Hot hydraulic fluid can
cause severe burns. Wait for hydraulic fluid to
cool before servicing any hydraulic component.
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MA8620
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