NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 1-14
CHAPTER 2 MAINTENANCE
1 SERVICING
AUGUST 31, 2008
1.4.10 Alternator
The alternator used is a 60-amp type.
The alternator requires no special care except to keep the drive belt properly
tensioned. It is not a user-repairable item.
If you suspect a problem with the alternator, most alternator problems can be
traced to one of the following causes:
• Battery or battery connection fault.
• Loose, dirty, or corroded alternator connections.
• Broken wires to alternator.
• Slipping drive belt.
Before repairing the electrical system, disconnect the positive
cable from the battery to prevent possible injury due to electrical shock.
NOTICE! Before welding on the machine, disconnect the battery to prevent
damage to the alternator.
The operating voltage of the electrical system is 12V.
• Do not disconnect the battery when the diesel engine is running.
• Do not start the diesel engine using a battery charger when the battery has
been removed.
• For electrical welding work, disconnect the battery. The positive terminal of
the welder shall be connected directly to the part to be welded.
1.4.11 Change Engine Oil and Oil Filter - Diesel
For Cummins engines, see the OEM Operation and Maintenance Manual
supplied for the engine and included with this manual.
1.4.12 Check Air Cleaner Restriction
Inspect all air system hoses and els.
For Cummins engines, see the OEM Operation and Maintenance Manual
supplied for the engine and included with this manual.
1.4.13 Change Fuel Filter
See page 5-3 of the Cummins “Operation and Maintenance Manual B Series
Engines” manual included with this manual.
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