NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 3-9
CHAPTER 2 MAINTENANCE
3 REMOVAL AND INSTALLATION
AUGUST 31, 2008
3.5 ENGINE/TRANSMISSION REMOVAL
The following is a general guide for removing the engine (or the engine and
transmission together). The numerous available options make it necessary for the
individual technician to determine the best course for removing the tow tractor
engine.
1. Block rear wheels in both directions to prevent tractor from rolling when drive
shaft is disconnected. Do not apply parking brake.
2. Remove engine hood, side panels, and access plates.
3. Raise front of tractor with suitable stands.
4. Shift transmission into neutral. Drain engine crankcase, cooling system and
transmission.
5. Remove air cleaner and hose assemblies.
6. Disconnect battery cables.
7. Remove radiator, see 3.4.
8. Remove fan blade.
9. Tag and disconnect all wire harnesses to engine and transmission components.
10. Disconnect and cap fuel lines at required engine locations.
11. Disconnect accelerator linkage.
12. Disconnect exhaust pipe at the exhaust manifold. Tape over opening to prevent
debris from entering engine.
13. Disconnect drive shaft from parking brake disc and tie out of the way.
14. Disconnect shift cable from transmission.
15.
16. Remove master cylinder/power booster.
17. Remove screws from hood support and slide back to allow clearance for
removing engine/transmission assembly.
18. Loosen cable tension and disconnect parking brake cable from caliper and
bracket.
The engine and transmission assembly is large and heavy. To
prevent it from falling on you, use proper slings and hoists for removal and
installation
19. Attach a suitable hoisting bracket to transmission and/or engine assembly for
support and lifting.
20. Steps 20-25 apply if it is possible to remove the engine without the
transmission.