Table 4-1. Unit Preventive Maintenance Checks and Services (Cont).
H-Hours of operation
Item to be Inspected
Inspect for worn, frayed, oil soaked, or
cracked belts. Check adjustment. Proper
adjustment for fan belt is a deflection
of ½ inch with application of 12-14 lb
pressure midway between alternator
and water pump pulley.
Replace filter elements.
Clean fuel strainer.
Lubricating 011 and Filters
Change lubricating oil and filter. (Refer
to L O ).
Breather and Breather Tube
Inspect for damage. Clean breather and
tube at oil change interval.
Clean air cleaner element whenever
necessary as indicated by air filter
condition indicator light.
Replace any broken or cracked lenses
or defective bulbs.
Check for cuts, breaks, frayed wires, or
Inspect wiring harness, clips,
connectors, shields, grommets and
electrical boxes. Repair or replace as
Check security of mounting Inspect
ring for excessive wear.
Inspect for broken links or missing
Replace any cracked, broken, or
Data Plates and Markings
Make sure data plates are legible and
securely mounted. Replace illegible