Every 6,000 miles (9,600 kilometers) or semiannually, whichever comes first, remove oil
reservoir plug from lower housing and drain. Fill reservoir with OE/HDO, clean and install
plug. Wipe breaker cam lightly with GAA and lubricate breaker arm pivot and wick under
rotor with 1 or 2 drops of OE/HDO.
Drain oil filter on gasoline engines every 3,000 miles (4,800 kilometers) or 3 months, whichever
occurs first. Multifuel or Diesel engine oil filters will be changed only when directed by oil
analysis laboratory. If oil analysis laboratory is not available, use the hard time of 6,000 miles
(9,600 kilometers), 6 months or 600 engine hours, whichever occurs first. Remove filter drain
plug, drain oil and remove elements. Clean inside of filter housing and reinstall drain plug and
new filter element and gasket, When filling crankcase, add two extra quarts (1.9 liters) of
OE/HDO for each filter.
When a safe level of lubricant within a gear housing is indicated at
time of scheduled lubrication, the lubricant retaining seal is
functional even though the seal may indicate questionable
leakage. Questionable leak that may indicate a defective seal will
be subject to frequent observation as a potential problem area.
When seepage or leakage of lubricant adversely affects the
proper function of parts within the area (e.g. brakes), the retaining
seal is non-functional regardless of lubricant level.
Change gear lubricant only when required by maintenance repair action, or if contaminated
by water or other foreign material. Semiannually, check lubricant for proper level and for
contamination. Drain only when hot after operation. Remove, clean, inspect, and install
magnetic plugs and strainer located at bottom of transfer case housing. At axle differentials,
transfer case, transmission, and power divider (M62, M543, M543A1, M543A2), check that
level is within 1/2 inch (1 2.7 millimeters) of filler plug opening when lubricant is cold, or to plug
level when hot. Fill other gearcases to plug level at all times. Clean vents quarterly, and after
operation in mud, snow, or water. For steering gear, fill until lubricant is one inch
(25.4 millimeters) below filler plug or breather hole.
CARBURETOR GOVERNOR ROTOR SHAFT
Every 1,000 miles (1,600 kilometers) or 6 months, whichever occurs first, remove plug and
lubricate felt with several drops of OE/HDO.
FRONT AXLE UNIVERSAL JOINTS AND STEERING KNUCKLE BEARINGS
Every 12,000 miles (19,000 kilometers) or 12 months, whichever occurs first, remove plug from
universal joint housing, fill to level of plug opening, and reinstall plug. Do not disassemble
Every 3,000 miles (4,800 kilometers) or 3 months, whichever occurs first, on universals equipped
with plugs, remove filler plug at each joint and install pressure fittings; fill using low pressure
gun. Remove fitting and reinstall plug. If operating conditions are severe or abnormal, service
at 1,000 miles (1,600 kilometers).
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