NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M100 Tow Tractor Manual No. 46052
PAGE 19
CHAPTER 2 MAINTENANCE
1 SERVICING
APRIL 15, 2012
taking your reading. Hold hydrometer at eye level and take reading.
Correct reading by subtracting .004 for each 10F BELOW 80F, and add .004
for each 10F ABOVE 80F
1.280-1.260. A 50% charge is indicated by a SG of 1.180-1.170. A typical
discharged battery will have a SG of 1.080-1.070.
fail due to internal shorts, or normal deterioration.
If charging does not bring SG to a satisfactory level, replace the battery
(original factory-installed battery is rated 470 cold-crank amps).
If a good battery repeatedly becomes discharged during normal operation,
there may be a problem with the regulator or alternator.
1.6.14 A Sound Battery Is A Must
A worn out or badly sulphated battery will produce numerous problems that
cannot be corrected until the battery is replaced.
Always check battery condition and connections before condemning other
parts of the system. A fully charged battery is a must for conducting accurate
systems tests.
1.6.15 Voltmeter
The voltmeter indicates voltage across the battery terminals. When the
When the engine is running, the voltmeter needle should show 14V.
If the voltmeter does not jump to 14V after starting the engine, this indicates
that the battery is not being charged by the alternator.
1.6.16 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.
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