NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 1-30
CHAPTER 2 MAINTENANCE
1 SERVICING
AUGUST 31, 2008
NOTICE! Do not stall transmission and run engine at wide open throttle for
more than ten seconds at a time. Extended operation in a transmission stall
mode at full or partial throttle will cause overheating and transmission failure.
After each full throttle check, move the selector to neutral and run the engine
the next check.
Transmission in drive ............ 110- 188PSI (758.4 - 1296.2 Kpa)
or
Transmission in reverse.......175- 300PSI ( 1206.6 - 2068.4 Kpa)
only provide clutch/band capacity for engines up to 251 ft-lbs engine output
torque.
NOTICE! Pressure below 110 PSI for drive and 175 PSI for reverse may
cause band and clutch slippage and damage the transmission.
6. Remove wheel blocks and up shift test the vehicle with brakes not
accelerator until automatic up shift which will be a harsh change. If the up
7. Remove hydraulic pressure gauge and reinstall pipe plug. Test vehicle
under normal driving conditions.
1.6.4 Transmission - Allison
Figure 10
Fluid Level and Condition
All AT545 transmissions are equipped with a dipstick marked COLD RUN
and HOT RUN. The only purpose of the “Cold Check” below is to determine
if the transmission has enough oil to be safely operated until a “Hot Check”,
following, can be made.
NOTICE!
small amounts and recheck level frequently.
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