TM 1-1740-221-13&P&P
FIELD MAINTENANCE
TRANSMISSION SERVICE
INITIAL SETUP:
Personnel Required
Tools and Special Tools
91B, Light Wheel Vehicle Mechanic
General Mechanic Tool Box (WP 0157, Item 24)
Funnel (WP 0157, Item 8)
References
Oil Filter Wrench (WP 0157, Item 15)
Standard Automotive Tool Set (WP 0157, Item 21)
Materials/Parts
Fluid, Transmission (WP 0156, Item 23)
Equipment Condition
Sealant, Loctite, 262 (WP 0156, Item 38)
Engine Shut Down
Solvent (WP 0156, Item 14)
TRANSMISSION SERVICE
WARNING
The use of Personal Protective Equipment (PPE) is required when using or handling hazardous
materials associated with operating and maintaining equipment (jet fuel, hydraulic luid, brake
luid, ethylene glycol, cleaning solvents, compressed air, and engine/axle oil). Failure to use
PPE when handling these materials could result in injury or death.
CAUTION
If transmission luid is discolored or has a burnt smell, it may have been caused from high
operating temperatures. Fluid and ilter should be changed immediately.
If transmission luid has a milky look, water has entered transmission. Fluid and ilter should
be changed immediately.
If transmission luid has a concentration of air bubbles, this is an indication of an air leak in the
suction lines. Do not operate the vehicle until these conditions have been corrected.
NOTE
Transmission luid contains a red dye additive to distinguish this luid from other luids used on
this vehicle. If leaks are noticed and are red in color, most likely a transmission leak is present.
Transmission luid level check should be accomplished after vehicle engine is started and at
idle speed for no more than 5 minutes.
Fluid level check should be accomplished with vehicle on a lat surface or as level as possible.
TRANSMISSION FLUID LEVEL CHECK
CAUTION
Perform these luid check procedures as described or damage to the transmission may occur
due to over servicing or under servicing the vehicle transmission.
1.
Release engine cover rubber latches. Open engine cover (WP 0028).
2.
Cold Engine - Start vehicle (WP 0005) and allow engine to idle for a period not to exceed 5 minutes,
proceed to Step 5.
00441