NOTES - TM-9-2320-361-24-10369

TM 9-2320-361-24-1

0020 00

LUBRICATION INSTRUCTIONS (Contd)

NOTES

Fuel Filters

Drain primary fuel filter. If fuel filter contains dirt or water, drain secondary and final filters. If

dirt or water is found in final filter, notify organizational maintenance. Replace primary and

secondary filter elements and gaskets every 6,000 mi (9,656 km), 12 months, or whichever occurs

first, or at the discretion of the Maintenance Officer, as local conditions warrant. Change final fuel

filter during engine overhaul/rebuild or during troubleshooting. Do not drain filters completely.

Fuel Filter

Replace fuel filter every 6,000 mi (9,656 km) or 12 months, whichever occurs first.

Oil Filter

Remove filter drain plug and elements; clean inside of filter case and reinstall drain plug, new

elements, and gaskets.

Oil filters must be serviced, changed, or cleaned when:

1. They are clogged or known to be contaminated.

2. Prescribed hard-time intervals are reached.

Crankcase

To check engine oil level, wait at least one minute after shutting down engine to allow oil to drain

into crankcase. Safe operating level is between ADD and FULL on the dipstick. Adjust oil level

accordingly.

When vehicle or engine is placed in storage other than administrative storage, service the

crankcase with grade 30 engine oil conforming to specification MIL-PRF-21260, Lubricating Oil,

Internal Combustion Engine, Preservative and Break-In. MIL-PRF-21260 engine oil is an

operational lubricant and may be used until the initial scheduled oil change after reactivation of

the vehicle or engine. For administrative storage, engine oil conforming to the specification and

grade established should be used.

Gear Cases

Change gear lubricant only when required by maintenance repair action, or if contaminated by

water or other foreign material. Check lubricant for proper level and for contamination annually.

Drain only when unit is hot after operation. At axle differentials, transfer case and transmission;

check fluid level within 1/2-in. (12.70 mm) of level plug opening. The level in the winch end

bearing frame housing on the right side is 6-7/8 inches (174.62 mm) below filter plug. Use the full

level plug located on the left side of the winch worm housing to check lubrication level.

At the time of a scheduled lubrication, a gear housing lubricant retaining seal that indicates

questionable leakage may be considered functional if a safe level of lubricant is present in the gear

housing. Questionable leaks that may indicate a potential problem area may be subject to frequent

observation. 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.

0020 00-17