TEST OR INSPECTION
Remove rings, wristwatches, neck chains, and any other jewelry before working
around vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry
and tools may short across electrical circuits and cause damage to equipment, or
severe burns or electrical shock to personnel.
Turn battery disconnect switch to OFF position (WP 0007). Open pump operator's
panel housing (WP 0325). Disconnect cab water level gauge wire harness connector
from pump operator's panel WATER LEVEL gauge. Remove cab instrument panel
B (WP 0311). Disconnect cab water level gauge wire harness connector from cab
WATER LEVEL gauge. With a test lead set, check for continuity across cab water level
gauge wire harness from pump operator's panel WATER LEVEL gauge connector,
terminal 1 to cab WATER LEVEL gauge connector, terminal 1. Note reading. Repeat
continuity checks for terminals 2 to 2, 3 to 3, 4 to 4, 5 to 5, 6 to 6, and 7 to 7.
If there is no continuity for any pair of terminals, replace cab water tank level
gauge wire harness (WP 0444).