TM 5-3825-229-14&P
4-12. CONTROL PANEL SWITCHES AND RELAYS (cont)
b. Testing Spray Nozzle Switches.
Testing Switches
(1)
Connect black test lead to center terminal of switch. Connect red test lead to end terminal.
(2)
Toggle switch to upper position. Multimeter display should go to zero ohms, indicating
continuity.
(3) Toggle switch back to center position. Meter display should return to infinity (oo), indicating no
continuity.
(4) If test results are not the same as described above, the switch must be replaced.
c. Testing Power Switch and Glow Plug Switch.
(1)
Prepare for switch testing as described in "Preliminary Testing Information" (para. "a" above).
(2)
Connect black test lead to center terminal of switch. Connect red test lead to upper terminal.
(3)
Toggle switch to upper position. Multimeter display should go to zero ohms, indicating
continuity.
(4) Toggle switch back to center position. Meter display should return to infinity (°°), indicating no
continuity.
4-22
