NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 1-35
CHAPTER 2 MAINTENANCE
AUGUST 31, 2008
1 SERVICING
NOTICE! If you ever notice unusual noises such as gear noise or grinding,
a buzz or whine, knocks, scraping, clicking, etc., remove the tractor from
service and refer it to a transmission repair facility.
Gearshift Linkage
The shift linkage adjustment is done to make sure that when the gearshift
control lever is in a certain drive range, the operator’s shift lever is actually in
that exact position.
The original setting can be altered by wear, loosening of locknuts, and
deterioration of engine mounts. If the engine mounts are damaged, replace
the mounts before attempting any other maintenance.
1. Inspect all shift linkage components and replace any that are worn or
damaged. Clean any grease, dirt, or rust from linkage to ensure smooth
movement.
2. Disconnect shift cable from shift lever on transmission.
3. Place operator’s shift lever in REVERSE position.
4. Move shift control lever (on transmission) to rearmost position (R) detent.
5. Adjust cable length by turning clevis in or out until clevis will slide through
clevis and shift lever without movement of shift lever or control lever.
6. Move control lever through entire shift range one position at a time,
checking shift lever detent at each position.
7. Tighten clevis lock nut. Install clevis and a new self-locking nut. Tighten nut
Neutral Starting Switch
The neutral starting switch is a safety device which prevents the engine from
starting if the transmission is in any shift position other than NEUTRAL.
Testing the Neutral Start Switch
1. Disconnect electrical lead at neutral starting switch.
2. Connect one lead of a test lamp to switch terminal and other lead to battery
positive terminal.
3. Move control lever (on transmission) through shift positions while watching
test lamp. Lamp should light only when control lever is in NEUTRAL
position.
NOTE: The neutral starting switch may also be checked by attempting to start
the engine with the gear shift lever in each shift position.
4. If test lamp does not light, switch is faulty or shift cable is out of adjustment.
Adjust shift cable as described previously in this section.
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