Lull 1044C-54 Series II Service Manual - Manual (Page 330)

Transmission
8-6 31200079
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.
Transmission Removal
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.
1. Park the machine on a firm, level surface, fully retract the boom, raise
the boom, place the travel select lever in the (N) NEUTRAL position,
engage the parking brake and shut the engine OFF.
2. Place an Accident Prevention Tag on both the ignition key switch and
steering wheel, stating that the machine should not be operated. Refer
to Section 1.5, “Accident Prevention Tags.”
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.
3. Temporarily block up or support the boom.
WARNING: Hot hydraulic fluid can cause severe burns. Wait for hydraulic
fluid to cool before servicing any hydraulic component.
4. Open the rear door. Allow the engine, transmission and hydraulic fluid to
cool.
5. Drain the hydraulic oil reservoir. (Refer to the appropriate operators &
safety manual for information concerning the hydraulic oil and filter
change.)
6. Disconnect the battery negative (-) cable (1) or cables at the battery
negative (-) terminal, to prevent the engine from starting accidentally.