TM 5-3825-270-23&P
0042
4.
Set multimeter to measure continuity.
5.
Connect red multimeter probe to terminal 1 on engine speed SET switch.
ENGINE SPEED
SET SWITCH
BACK OF
CONTROL PANEL
TERMINAL 1
RED JUMPER
WIRE
TERMINAL 2
BLACK/WHITE
WIRE
Figure 2. Engine Speed Set Switch - Step 1.
6.
Connect black multimeter probe to terminal 2 on engine speed SET switch.
7.
While holding multimeter probes to terminals, press engine speed SET switch.
8.
Note multimeter reading.
CONDITION/INDICATION
Are less than 200 ohms measured across engine speed SET switch terminal 1 and terminal 2 when switch is
pressed?
DECISION
No - Replace engine speed SET switch. (WP 0096) Verify problem is solved. (Step 5 - Does engine speed SET
switch operate normally?)
Yes - Go to step 2. (Step 2 - Are less than 200 ohms measured from black/white wire on engine speed SET
switch to governor controller harness connector, pin E2?)
STEP 2
Are less than 200 ohms measured from black/white wire on engine speed SET switch to governor controller
harness connector, pin E2?
1.
Disconnect governor controller harness connector. (WP 0092)
2.
Ensure multimeter is set to measure continuity.
3.
Connect red multimeter probe to black/white wire at engine speed SET switch.