TM 5-3805-293-23-1
0011
Table 1. Engine Troubleshooting Procedures for the 120M Motor Grader - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Alternator Will Not
1. Inspect the condition of the
Drive Belt Worn - Replace drive belt
Charge Batteries
alternator drive belt, pulley,
(WP 0093).
vibration damper, belt tensioner,
Alternator Pulley Damaged -
refrigerant compressor pulley, and
Replace pulley (WP 0094).
crankshaft pulley (WP 0032).
Refrigerant Compressor Pulley
Damaged - Replace compressor
assembly (WP 0096).
Crankshaft Pulley Damaged -
Replace crankshaft pulley (WP 0083).
Vibration Damper Damaged -
Replace vibration damper (WP 0083).
Belt Tensioner Binds or Sticks -
Replace belt tensioner (WP 0093).
2. Perform Battery Test (WP 0041)
Battery Analyzer Displays GOOD
on each battery.
BATTERY - Batteries OK, install
batteries in machine (WP 0194). If
equipped with arctic heater, install
arctic kit batteries (WP 0334), then
proceed to step 3.
Battery Analyzer Displays GOOD
RECHARGE - Charge batteries (WP
0041), and install batteries in machine
(WP 0194). If equipped with arctic
heater, install arctic kit batteries (WP
0334).
Battery Analyzer Displays CHARGE
& RETEST - Charge batteries (WP
0041) and test battery (WP 0041).
a. If battery analyzer displays
CHARGE & RETEST again,
replace battery (WP 0194). If
equipped with arctic heater,
install arctic kit batteries (WP
0334) and install batteries in
machine (WP 0194).
b. If battery analyzer displays
GOOD BATTERY - Batteries
OK, install batteries in
machine (WP 0194). If
equipped with arctic heater,
install arctic kit batteries (WP
0334).
Change 1