engine deck grille.
grille exhaust deflector and grille. Remove gage rod (dipstick)
from transmission tube. Wipe rod, then reinsert it. Remove rod
54. ARMY OIL ANALYSIS PROGRAM (AOAP) - MAIN
again. If oil shows on oil level gage, it is safe to start engine. If
ENGINE. For active units, obtain oil samples from engine every
oil does not show on gage rod, add oil until visible on rod. Set
25 hours of operation or 30 days (whichever comes first). Send
vehicle parking brake. With shift selector set to neutral range,
these samples to nearest AOAP laboratory. Refer to TB 43-
start engine. Allow engine to run at 1200 to 1600 rpm for 2 to 3
0210 for sampling instructions. If or when AOAP laboratory sup-
minutes.
port is unavailable, hard-time intervals will apply.
55. TRANSMISSION DRAIN.
NOTE
Drain oil only when hot after
operation.
New transmissions are filled with
Stop engine. Wait 3 to 5 minutes; then check oil level again.
drained after 100 miles (or 10
Add or drain oil until oil level measures between ADD and FULL
hours) of operation. Refill with
marks (see table on card 14 for capacity).
proper grade of lubricant (see table
on card 14 and note 58). After 500
miles, again drain and fill.
NOTE
Periodically, a sample of oil shall be
If vehicle has been operating for a
sent to the AOAP laboratory for
period of time sufficient to warm oil to
analysis. Oil is to be drained at
180F to 200 F, oil level should be
by
intervals
determined
oil
at, or above, FULL mark. This is a
analysis. See note 54 and TB 43-
normal condition and is due to
0210 for details.
expansion of the oil.
When AOAP laboratory support is
not available, drain and refill
transmission oil at 1500 miles or
Install oil gage rod and close rear engine deck grille exhaust
semiannually.
deflector and grille.
Coordinate any seasonal change of
q
oil weight with this service.
NOTE
Remove six bolts and six lockwashers that secure transmission
drain plate to bottom of hull. Remove drain plate and gasket.
Drain oil only when hot after
Remove drain plug to drain transmission.
operation.
Periodically, a sample of oil shall be
NOTE
sent to AOAP laboratory for
analysis. Oil is to be drained at
If transmission is to be flushed, drain
by
intervals
determined
oil
drives
reduction
in
output
analysis. See note 54 and TB 43-
accordance with note 63.
0210 for details
When AOAP laboratory support is
q
Clean drain plug with dry-cleaning solvent (SD-2). Install plug
not available, drain and refill
after transmission is fully drained. Fill transmission with lubri-
engine oil at 1500 miles, 150 hours
cant (see note 58). Check that no 011 seeps around drain plug,
or semiannually if OE/HDO is used
and install gasket, drain plate and SIX attaching bolts and lock-
(750 miles, 75 hours if OEA is
washers
used).
56. TRANSMISSION OIL FILTERS. Open rear engine deck
Coordinate any seasonal change of
q
grille exhaust deflector and grille. Remove left and right cover
oil weight with this service.
plates and remove four elements (two under each plate). Clean
Park vehicle on level ground. Remove oil cooler vent capscrew
elements and covers with dry-cleaning solvent (SD-2). Install
and open oil filter drain valve. Remove six screws and six lock-
elements and install left and right covers. Close rear engine
washers that secure engine drain plate to bottom of hull.
deck grille exhaust deflector and grille.
Remove drain plate and gasket. Remove drain plug to drain
57. ARMY OIL ANALYSIS PROGRAM (AOAP) - TRANSMIS-
engine. Clean drain plug with dry-cleaning solvent (SD-2).
SION. For active units, obtain oil samples from transmission
Install plug after engine is fully drained. Install oil cooler vent
every 25 hours of operation or 30 days (whichever comes first).
capscrew and close oil filter drain valve.
Send these samples to the nearest AOAP laboratory. Refer to
TB 43-0210 for sampling instructions, If or when AOAP labora-
tory support is unavailable, hard-time intervals will apply.
58. TRANSMISSION FILL AND LEVEL. Open rear engine deck
LO 9-2350-256-12
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CARD 35 of 38