NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 1-36
CHAPTER 2 MAINTENANCE
1 SERVICING
AUGUST 31, 2008
5. If lamp still does not light, replace switch.
Replacing the Neutral Start Switch
container.
2. Move control lever to NEUTRAL position. Check to see that the switch
3. Install switch and tighten to 24 ft-lbs torque. Retest switch as described
previously. If switch still does not light, replace it.
NOTICE! Be sure the switch packing is properly installed to prevent oil
leakage.
Shift Cable For Allison
Failure to follow the shift cable precautions following can
result in serious injury or equipment damage.
• Do not adjust shift cable with the engine running.
• If a shift cable gets moisture inside or becomes frozen, replace the cable.
Do not apply heat to thaw or dry the cable.
• The shift cable is lubricated for the life of the cable. Do not remove seals or
lubricate the control cable.
• The shift cable is non-repairable. Do not attempt to repair the shift cable.
Allison Modulator Installation and Adjustment
As engine power demand increases (i.e. from idle to full throttle), the
speeds at which transmission upshifts and downshifts occur are increased
accordingly. To optimize vehicle performance at full throttle (as on an
accelerating vehicle) upshifts normally occur near engine governed speed.
Closed and part throttle shifts are at lower speeds, providing quieter operation
changes (modulates) the transmission shift points as a function of vehicle
speed and the operator’s demand for engine power. Correct design,
installation, and maintenance of the shift speed modulation control are
therefore extremely important for proper transmission operation.