TM 9-6115-668-13
4.67 ENGINE PREHEATING CONTROL BOARD MAINTENANCE.
This task covers:
a. Removal
b. Installation
Tools
Equipment Conditions
General Mechanic’s Tool Kit
(item 2, appendix B)
Reference
Automotive Fuel and Electrical System Repair, Tool Kit
(item 3, appendix B)
Materials/Parts
Cable ties
(item 10, appendix E)
Generator Set 150 kW shut down,
paragraph 2.5.2
Disconnect the negative battery cable first and then the positive bat-
tery terminal cables. Failure to observe this warning could result in se-
vere personal Injury or death.
Tag all cables prior to removal to ensure correct connection of the cables
during installation.
1.
2.
3.
4.
5.
6.
7.
8.
Open flap (2, figure 4-57) on unit hood assembly (1).
Open front panel (4) of control cabinet assembly (3) and secure with prop (5).
Remove two nuts (8), serrated two lock washers (7), and two washers (6) from two screws (9).
Remove cover (11), two screws (9), two washers (10).
Open cable conduit next to terminal strip X101 (54).
Record labeling and position of cables to terminal strip X101 (54) and disconnect cables.
Remove nut (12), serrated lock washer (13), washers (14, 16) and grounding strap (15) from
threaded pin (17). Discard nut (12).
Remove four self-locking nuts (55) from bolts (56) on mounting plate (57) and take engine preheat-
ing control board off control cabinet (3). Discard nuts (55).
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