PS Magazine - TB 43-PS-582
PS, The Preventative Maintenance Monthly
ISSUE 582
MAY 2001
Cold-run Level Check
1.
Park the vehicle on a level surface, apply the parking brake and chock the wheels.
2.
Run the engine in neutral (N) at 1,000-1,500 rpm for 1 minute. Then allow the
engine to return to idle. Shift the transmission to drive (D) and then to reverse (R)
to clean hydraulic circuits of air. Then shift to N. The transmission temperature
should be between 60°-160° F.
3.
Clean off the access door,
dipstick handle and the end of
the filler tube so dirt, dust or
grit won't get into the transmis-
sion. Remove the dipstick,
wipe it clean and check the
fluid level. Then wipe the dip-
stick the second time and
check the fluid level again.
PS 582
3
PS 582
MAY 01
2
rab some pine, drivers, and take notes on new fluid checks that'll help reduce
transmission failures on M35A3-series trucks.
For openers, the checks are now part of the before-operation PMCS, not after-
operation as before. This will ensure there's enough fluid in the transmission for
operation. Improper fluid levels are one of the biggest causes of transmission
failures.
Cold-run level checks and hot-run level checks are performed at least twice
each during the before-operation PMCS.
Cold-run level checks are made only to ensure there is enough fluid in the
transmission to operate it for the hot-run level checks.
M35A3-Series 2
1
∕
2
-ton Trucks.
..
If the fluid level is within the
cold-run band, you can operate
the transmission until it is hot
enough to make a hot-run
check. If it's not within the
band, add or drain oil as needed
to bring the level to the middle
of the cold-run band. The fluid
level should never be above the
top of the cold-run band in a
cold-run check, according to the
transmission manufacturer.
4.
Once the level is OK, put the dipstick all the way into the filler tube and turn the
T-handle until it's tight.
Transmission dipstick
Cold-run
level here
Clean dirt from
area before
removing dipstick
582. 02-05 (C)
4/4/01
9:41 PM
Page 1
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