TM 5-3825-270-23&P
0037
DECISION
No - Replace tachometer. (WP 0102) Verify problem is solved. (Step 7 - Does tachometer operate normally?)
Yes - Go to step 2. (Step 2 - Is tachometer pulse adjustment dial set to pulse 5?)
STEP 2
Is tachometer pulse adjustment dial set to pulse 5?
NOTE
The tachometer receives its engine speed signal from the alternator. If the tachometer is not
set to proper setting, incorrect engine speed or no engine speed may be observed from
gauge.
1.
Push in EMERGENCY STOP switch to off position. (TM 5-3825-270-10)
2.
Remove six control panel faceplate screws.
CONTROL PANEL
FACEPLATE SCREWS
Figure 2. Control Panel Faceplate Screws - Step 2.
3.
Check tachometer pulse adjustment dial.
GREY
PULSE ADJUSTMENT
WIRE
DIAL
RED
WIRE
BLACK
WIRE
Figure 3. Pulse Adjustment Dial - Step 2.