PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS Continued
ITEM TO BE
f. Check heater control box, switches, and light
bulb. Tighten or replace bad switches and bulb
(WP 0474 00).
g. Start, run, and stop heater (see your 10).
During start cycle, check that switches and
lights work properly.
h. During operation, check for unusual noises.
Check for increase in coolant temperature.
i. When stopping heater, check for correct purge
cycle. Check that indicator light works right. If
heater does not operate as specified above,
perform troubleshooting (WP 0086 00).