TM 9-2320-273-20
Item
No.
1
Table 3-1. Unit Level Preventive Maintenance Checks and Services M915-M920
Interval
Semi-
Annual
Item To Be
Inspected
Pre-
Service
Checks
Procedure
PRIOR TO ROAD TEST
Ensure Operator/Crew has performed
-10 PMCS listed in TM 9-2320-273-10.
ROAD TEST
Maintenance personnel will be with vehi-
cle operator to assist in performing -10
PMCS checks and verify pre-service
checks.
NOTE
The following will be performed during
the road test. These inspections must
be performed before any -20 level
PMCS regardless of interval.
For road test, vehicle will be driven at
least five miles over different ground to
give enough time to detect any malfunc-
tions.
a. Notice if starter engages smoothly
and turns the engine at normal crank-
ing speed.
b. Listen for unusual engine noise at
idle, at operating speeds, and under
acceleration. Be alert for excessive vi-
bration and the smell of oil, fuel and ex-
haust.
Not Mission
Capable If:
a. Starter inopera-
tive or makes exces-
sive grinding sound.
b. Engine knocks,
rattles or smokes ex-
cessively.
Change 4 3-5
