TM 5-3825-229-14&P
4-12. CONTROL PANEL SWITCHES AND RELAYS (cont)
d. Testing Start Switch and Engine RPM Switch (cont).
(5)
Toggle switch to bottom position. Multimeter display should go to zero ohms, indicating
continuity. Toggle switch back to center position.
(6)
Connect black test lead to right center terminal of switch. Connect red test lead to right top
terminal.
(7)
Toggle switch to upper position. Multimeter display should go to zero ohms, indicating
continuity. Toggle switch back to center position. Meter display should return to infinity (°°),
indicating no continuity.
(8)
Connect red test lead to right bottom terminal of switch.
(9)
Toggle switch to bottom position. Multimeter display should go to zero ohms, indicating
continuity. Toggle switch back to center position.
(10)
If test results are not the same as described above, the switch must be replaced.
e. Removal.
(1)
Unscrew two screws (1) on right side of
panel (2). Open panel (2).
(2)
Tag and remove all wires (3) from switch
(4).
(3)
Remove nut (5) and washer (6) holding
switch (4) to control box panel (2).
(4)
Remove switch (4).
f. Installation.
(1)
Install switch (4) through hole in control
box panel (2). Secure with nut (5) and
washer (6).
(2)
Connect wires (3) to proper switch
terminals.
(3)
Close panel (2) and install two screws (1).
g. Engine Relay Panel
(1) Removal.
(a)
Disconnect harness wires (1) and engine wires from relays (9 and 13) and glow plug
resistor (17).
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