TM 9-2350-261-20-l
Table 2-1. Unit Level Preventive Maintenance Checks and Services for M113A2 FOV
L
Item Interval
Item To
Procedure
Not Mission
No.
Be
Capable If:
Inspected
5
S e m i - S t a ll
If outside air temperature is greater
Annual
Check
than 85° F (29° C, normal operating
temperature should be 160° to 230° F
Continued
(71° to 110° C.
CAUTION
Limit stall test to 30 seconds.
Lengthy full throttle operation
with brakes locked creates high
oil temperatures and will dam-
age engine and transmission. If
you suspect a faulty governor, do
not perform stall check.
With brakes locked, move range selec-
tor to the 2-3 range and push accelera-
tor all the way down. Tachometer
reading of 1900 to 2100 rpm indicates
power plant is operating correctly.
NOTE
Tachometer above
2100 rpm or below
1900 rpm.
Extremely high ambient tem-
perature and high altitude will
lower stall speed.
NOTE
U s e S T E - I C E t o v e r i f y t h e
T a c h o m e t e r i s c a l i b r a t e d o r
t o g e t a r e a d i n g w h e n
performing a stall check. See
page 3-284 for STE-ICE Test 10
Engine RPM.
NOTE
If check fails and a faulty tachom-
eter is suspected, verify tachom-
eter reading by performing STE-
ICE check number 10 (page 3-
284) before sending to next higher
level of maintenance.
Tachometer reading above 2100 rpm
indicates transmission problems.
Tachometer reading below 1900 rpm
i n d i c a t e s a f a u l t y e n g i n e .
Troubleshoot fuel system (page 3-30).
Check for correct vehicle tachometer
adapter. If no fault can be found, con-
tact next higher level of maintenance.
Change 4 2-45
