OIL FILTERS - TM-9-2320-366-20-21454

TM 9-2320-366-20-2

H-1. GENERAL (CONT)

Interval Symbols. The lubrications/services interval symbols will be used as applicable:

Q-quarterly/3,000 mi (4,827 km) (whichever occurs first)

S-semiannually/6,000 mi (9,654 km) (whichever occurs first)

A-annually/12,000 mi (19,308 km) (whichever occurs first)

B-biennially/24,000 mi (38,616 km) (whichever occurs first)

3K-every 3,000 mi (4,827 km) (no calendar interval)

6K-every 6,000 mi (9,654 km) (no calendar interval)

12K-every 12,000 mi (19,308 km) (no calendar interval)

24K-every 24,000 mi (38,616 km) (no calendar interval)

H-2. OIL FILTERS

Oil filters shall be serviced/changed as applicable, when:

They are known to be contaminated, or clogged;

Service is recommended by AOAP laboratory analysis; or

At prescribed hardtime intervals while vehicle is under warranty, or if AOAP

is not available/used as

required.

H-3. AOAP SAMPLING INTERVAL

WARNING

Engine oil is hot and under pressure. The oil sampling valve releases oil proportionally to the

amount of pressure applied to valve. Activate oil sampling valve by pressing in slowly to

prevent injury to personnel. Failure to comply may result in injury to personnel.

Wear safety goggles when taking oil sample. Oil is under pressure and could cause injury to

personnel. Failure to comply may result in injury to personnel.

Units participating in AOAP will sample engine oil every 3,000 miles (4,827 km) or 6 months, whichever occurs

first and change engine oil as directed by AOAP. Units participating in AOAP will sample transmission oil every

6,000 miles (9,654 km) or 12 months, whichever occurs first and change transmission oil as directed by AOAP.

Units participating in AOAP will sample hydraulic system oil initially after 6 weeks or 10 hours of operation,

whichever occurs first. After initial oil change samples should be taken every 12 months or 50 hours of operation,

whichever occurs first and change hydraulic oil as directed by AOAP.

H-4. WARRANTY HARDTIME STATEMENT

"For equipment under manufacturer's warranty, hardtime oil service intervals shall be followed. Intervals shall

be shortened if lubricants are known to be contaminated or if operation is under adverse conditions (such as

longer than usual operating hours, extended idling periods, extreme dust)."

H-2

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