Table 2-1. Unit Level Preventive Maintenance Checks and Services for M113A2 FOV
Check electrical leads and connectors
at heater, at heater control box and at
fuel pump. Tape leads if frayed. Re-
place damaged connectors (page 14-1).
Check heater control box, switches
and light bulb. Tighten or replace bad
switches and bulbs (page 29-43).
Start, run and stop heater (see your
-10). During start cycle, check that
switches and lights work properly.
Check for increase in blower speed af-
During operation, check for unusual
noises. Check for differences between
high and low heat levels.
When stopping heater, check for cor-
rect purge cycle. Check that indicator
light operates properly. If heater does
not operate as specified above, per-
form troubleshooting (page 3-207).
Change 3 2-133