PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - CONTINUED
Table 1. Preventive Maintenance Checks and Services (PMCS) for 621B Scraper - Continued.
NOT FULLY MISSION
d. Remove cooling system pressure
e. Maintain coolant level 1/2 in. (13
mm) from bottom of filler neck. As
required, add a 50/50 mixture of
f. Ensure engine air filter service indi- Red band is showing.
cator shows green or yellow and is
not damaged. Service air cleaner if
g. Install engine compartment side
access doors and engage retainers to
secure doors closed.
a. Visually check for missing or dam-
Fire extinguisher is missing
aged fire extinguisher. Ensure it is
securely stowed in mounting
b. Check gage for reading in green
Pressure gage needle is in
area on gage.
c. Check for damaged or missing seal. Seal is broken or missing.
d. Inspect fire extinguisher inspection
Inspection date is not cur-
rent and/or tag is missing.
Check for damaged gages, warning
Any warning indicator is
indicators, and switches.
broken or unreadable.
Seat belt is damaged. Date
Check seat and seat belt for damage
on belt is more than three
and proper operation. Ensure seat
years old. Seat will not
adjustments can be made and seat
adjust/lock in place.
locks in place.
Check steering wheel and column for
Damage that would impair
damage and proper operation.
operation is evident.