TM-9-2815-220-24
AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TM-9-2815-220-24 - Page 97 of 1563
TM 9-2815-220-24
ENGINE FAILS TO CRANK
0006 00
THIS WORK PACKAGE COVERS:
Troubleshooting Table and Diagnostic Tests
INITIAL SETUP:
Tools:
General mechanic’s tool kit (item 121, WP 0176)
Personnel Required:
Track Vehicle Repairer (2) 63H10
Equipment Conditions:
Engine installed in vehicle or ground hop.
MALFUNCTION 1:
Engine will not crank (no response when starter switch is pressed).
PROBABLE CAUSE
CORRECTIVE ACTION
a. Master switch "OFF".
(1) Turn switch "ON."
b. Transmission shift selector not in
"neutral/park" position.
(1) Place shift selector in "neutral/park"
position.
c. Transmission shift linkage and
"neutral/park" position out of adjustment.
(1) Adjust transmission shift linkage.
Refer to
pertinent vehicle technical manual.
(2) Adjust "neutral/park" switch for full travel.
Refer to pertinent vehicle technical manual.
d. Low voltage protection module operating
and/or batteries discharged (below 12 volts).
(1) Verify all panel lights are "ON", at normal
brightness.
(2) Check battery indicator as follows:
PROCEDURE
OBSERVATION
ANALYSIS
Indicator needle at extreme left (no
voltage indicated).
Indicator satisfactory.
Master switch "OFF".
Indicator needle at any position other than
extreme left.
Indicator defective.
Indicator needle moves into "yellow" area
(indicating battery voltage) with panel
lights on.
Indicator satisfactory.
Master switch "ON".
Indicator needle does not move from
extreme left position with panel lights on.
Indicator defective.
PROBABLE CAUSE
CORRECTIVE ACTION
d. (Continued) Low voltage protection module
operating and/or batteries discharged (below
12 volts).
(3) Check battery condition as follows:
PROCEDURE
OBSERVATION
ANALYSIS
Indicator needle in "yellow" area.
Battery charged.
Indicator needle in left "red" area.
Batteries discharged.
Master switch "ON".
Indicator needle in "green" area.
Batteries overcharged.
WP 0006 00-1
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