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.
Relay P10 operations can be checked by listening for metallic click or by feeling for slight
movement of relay while being energized.
Remove pump house panel S (WP 0540). Open pump house power
distribution (WP 0398). Turn battery disconnect switch to ON position (WP 0007).
While an assistant puts POWERED EQUIPMENT RACK MASTER switch to ON and
OFF position (WP 0004), check if relay P10 operates on and off.
If relay P10 operates on and off, go to Step 51.
Turn battery disconnect switch to OFF position (WP 0007). Remove relay
P10 (WP 0402). Turn battery disconnect switch to ON position (WP 0007). Put
POWERED EQUIPMENT RACK MASTER switch to ON position (WP 0011). Check for
22 to 28 VDC between wire 1821 (black) from pump house power distribution block
relay P10, terminal 86 to a known good ground.
If 22 to 28 VDC are present, go to Step 50.