TM 5-2420-230-24-1
Table 3-6. Unit Troubleshooting Table. -- Continued
Malfunction
Test or Inspection
Corrective Action
22.
FUEL GAUGE READS INCORRECTLY.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a
direct short may result. Damage to equipment and injury or death to personnel may occur.
Step 1.
Check fuel gauge (1) for proper operation.
Remove wire at sending unit and ground to vehicle chassis. Have an assistant watch gauge to identify
its movement. If no movement is noticed, check continuity of wire. Replace wire if necessary
If wire has continuity, replace fuel gauge (Para 12-23).
No smoking, flames, sparks, or glowing or hot objects are allowed within 50 ft. (15 m) of vehicle.
Fire or explosion may cause personal injury or death.
Fuel and oil are slippery and can cause falls. To avoid injury, wipe up spilled fuel or oil with rags.
To prevent possible injury, wear gloves and protective eye equipment when handling fuel. Failure
to comply may result in injury or death to personnel.
Step 2.
Check fuel gauge sending unit (2) for proper operation.
Remove sending unit and raise and lower float. Have an assistant watch gauge to identify its
movement. If no movement is noticed, replace fuel gauge sending unit (2) (Para 12-37).
Change 1
