TM 10-4930-204-13
Table 4-1. Organizational Preventive Maintenance Checks and Services
Item
No.
1
2
3
4
5
Item
To Be
Inspected
Hoses, Nozzles,
and Reels
Grounding Cable
and Reels
Filter/Separator
Magnets
Spark Plug
Quarterly Schedule
Procedures
Check for and have Repaired,
Replaced, Adjusted as necessary
Check hoses for leaks, breaks, crack
cuts and worn areas. Replace leaking,
worn, or damaged hose. Check nozzles
for distortion, corrosion and leaks.
Clean or replace distorted, corroded,
or leaking nozzles. Check reels for
alignment and ease of operation. Check
screen in refueling nozzle, (para. 4 -20)
Check cable for worn, frayed or cor -
roded condition. Check reel for ease
of operation. Replace worn, frayed,
or corroded cable and clips, (para. 4-
29).
Check for leaks, cracks, or other
damage. Check for leaking, cracked
or dirty sight glass. Remove and
clean a dirty sight glass. Replace
washers to correct leaking condition.
Replace cracked or broken sight glass
Drain water as required. Observe
pressure gages during operation. Re-
place filter elements and dome gasket
when discharge gage (upper) has pres-
sure reading of 20 psi less than in
gage (lower) with engine at full throttle
and both nozzles open (para. 4-27).
Replace pitted or burned magneto
points. Proper gap adjustment is
0.015 inch (0. 038 cm).(Check adjust-
ment every 500 hours.)(para. 4-2).
Replace spark plugs that have cracked
insulators and burned electrodes,
Clean and set spark plug gaps for
0.030 inch (0.076 cm). Replace leads
which are frayed or broken. Clean and
tighten lead connections, (fig. 4-11).
For Readiness Reporting,
Equipment is Not Ready/
Available If:
Evidence of fuel
leakage. Nozzles
are inoperative or
leaking fuel.
Broken cable or
clamp which would
not allow a proper
ground.
Evidence of leakage.
Defective magnets.
Faulty ignition
circuit.
4-8
Change 2
