TM 5-3825-270-23&P
0065
3.
Rotate EMERGENCY STOP switch to on position. (TM 5-3825-270-10)
4.
Ensure multimeter is set to measure voltage.
WARNING
Ensure electrical power is off prior to working on all electrical systems. Failure to comply
may result in injury or death to personnel.
Remove all jewelry, such as rings, ID tags, bracelets, etc., prior to working on or around
equipment. Jewelry and tools can catch on equipment, contact positive electrical circuits,
and cause a direct short, severe burns, or electrical shock. Failure to comply may result
in injury or death to personnel.
5.
Connect red multimeter lead to UPIK harness connector pin K.
UPIK HARNESS
CONNECTOR
PIN K
Figure 8. UPIK Harness Connector Pin K - Step 4.
6.
Connect black multimeter lead to a known good ground.
7.
Note multimeter reading.
CONDITION/INDICATION
Are 22 to 28 VDC measured at UPIK harness connector pin K?
DECISION
No - Replace UPIK harness. (WP 0108) Verify problem is solved. (Step 7 - Does cab control box WATER LEVEL
HIGH indicator illuminate?)
Yes - Wiring in cab control box harness is faulty. Replace cab control box wiring harness. (WP 0206) Verify
problem is solved. (Step 7 - Does cab control box WATER LEVEL HIGH indicator illuminate?)
STEP 5
Are less than 200 ohms measured on black wire at cab control box WATER LEVEL HIGH indicator to known
good ground?
1.
Push in EMERGENCY STOP switch to off position. (TM 5-3825-270-10)
2.
Disconnect batteries. (WP 0085)
3.
Set multimeter to measure continuity.
4.
Connect red multimeter lead to black wire at cab control box WATER LEVEL HIGH indicator.