TM 5-3825-270-23&P
FIELD MAINTENANCE
LEFT WATER SPRINKLERS SWITCH DOES NOT OPERATE
INITIAL SETUP:
References (cont.)
Tools and Special Tools
General Wire Harness Repair (WP 0099)
Tool Kit, General Mechanic's: Automotive
Main Control Panel Tachometer Does Not
(WP 0225, Table 1, Item 12)
Operate (WP 0037)
Multimeter (WP 0225, Table 1, Item 4)
Main Control Panel Water Sprinklers Switch
Tap & Die Set (Screwdriver) (WP 0225, Table 1,
Replacement (WP 0105)
Item 2)
Solenoid Valve Replacement (WP 0168)
Water Distributor Operator Manual (TM
Personnel Required
5-3825-270-10)
Construction Equipment Repairer 91L (2)
Equipment Condition
References
Engine OFF. (TM 5-3825-270-10)
Battery Disconnect/Connection (WP 0085)
TROUBLESHOOTING PROCEDURE
LEFT WATER SPRINKLERS SWITCH DOES NOT OPERATE
STEP 1
Does RIGHT WATER SPRINKLERS switch operate?
Verify if the RIGHT WATER SPRINKLERS switch operates. (TM 5-3825-270-10)
CONDITION/INDICATION
Does RIGHT WATER SPRINKLERS switch operate?
DECISION
No - Go to step 6. (Step 6 - Does tachometer operate?)
Yes - Go to step 2. (Step 2 - Are 22 to 28 VDC measured at pin 1 (red wire) on left solenoid harness
connector?)
STEP 2
Are 22 to 28 VDC measured at pin 1 (red wire) on left solenoid harness connector?
WARNING
Remove all jewelry such as rings, ID tags, bracelets, etc., prior to working on or around
vehicle. 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.
1.
Disconnect left solenoid harness connector from left solenoid valve. (WP 0168)
2.
Rotate EMERGENCY STOP switch to on position. (TM 5-3825-270-10)
3.
Move LEFT WATER SPRINKLERS switch to ON position.
0043-1