TM 5-3825-270-23&P
0042
4.
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.
3.
Connect red multimeter probe to black/white wire at engine speed SET switch.