Table 9-3. Preventive Maintenance Checks and Services for Electrical Power Systems(Continued)
B - Before
D - During
A - After
H - Hourly Interval
CHECK FOR AND HAVE
IS NOT READY/
REPAIRED OR ADJUSTED
B D A
b. If engine runs cooler or warmer than nor-
mal or engine coolant temperature fluctu-
ates, check thermostat. Perform the
Remove water connection between
header tank and exhaust manifold by
loosening both hose clips and sliding
hose toward exhaust manifold.
Remove two setscrews holding water
pipe to header tank.
Remove setscrews holding top cover
on thermostat housing. Remove
cover and lift out thermostat.
Place thermostat in container of water
and gradually heat. With an accurate
thermometer, check water tempera-
ture at frequent intervals. Valve
should start to open at temperature
stamped on top face of thermostat
next to valve seat.
If thermostat test shows it is opening
and closing at designated tempera-
ture, reinstall in housing in reverse
order of removal.
If thermostat does not open and close
at designated temperature, install new
thermostat in reverse order of
Air Intake Filter
Every 125 hours of operation or every 3
months (whichever comes first).
a. Clean air intake filter.
Redtag auxiliary generator switch-
board control panel indicating,
"WARNING-DO NOT ACTIVATE.
REPAIRS BEING MADE."
Remove air cleaner cover and filter