TM 9-2320-273-20
OIL SYSTEM
4-14. ENGINE OIL SERVICE (Continued).
LOCATION/lTEM
ACTION
REMARKS
A.1. OIL SAMPLE FOR ANALYSIS.
NOTE
Before beginning this task check engine
oil level according to Operator’s manual
(TM 9-2320-273-10).
Start engine (see TM 9-2320-273-10),
warm vehicle to normal operating range
and stop engine.
1. Draincock (16).
a. Unscrew and loosen.
When taking a sample, first
use a container to drain a
small amount of oil to clean
the valve assembly.
b. When completed with
task 1., use the proper
bottle and take oil sample
from the oil bypass filter
drain valve as shown in
illustration on page 4-26,
item 16.
c. Check oil level to insure
proper level after sampling.
B. REMOVAL OF PRIMARY FILTER.
NOTE
Place container under primary filter (30)
to catch oil.
3. Primary filter (30).
Unscrew using filter wrench.
Throw filter away.
C. INSPECTION OF FILTER ADAPTER.
4. Filter adapter (29).
Inspect for:
If adapter is defective, notify
a. Cracks.
Direct Support.
b. Nicks.
c. Damaged threads.
Change 2
4-26.1
