4.45 PUSHBUTTON SWITCH MAINTENANCE.
This task covers:
General Mechanics Tool Kit
(item 2, appendix B)
Generator Set 150 kW shut
Automotive Fuel and Electrical System Repair, Tool Kit
(item 3, appendix B)
(item 10, appendix E)
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.
Open flap (2, figure 4-46) on unit hood assembly (1).
Open front panel (4) on control cabinet assembly (3) and secure with prop (5).
Removal procedure for pushbutton switch S101 (6), S18 (7), S20 (9) is
the same as for pushbutton switch S7 (8), described below.
Record labeling and position of cables to contact block (17).
Disconnect cables from terminals (18, 19) of contact block (17).
Use a screwdriver to push in upper and lower closures (16) until they snap in, and remove contact
block (17) from base (14).
Loosen screws (15) on base (14).
Unlock ring (10) with colored plate (11) and housing (12) with sealing ring (13) on front of front panel
by turning counterclockwise.
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