Troubleshooting; Maintenance Practices; Tank Removal; Removal - Cub Crafters CC18-180 Maintenance Manual

2. TROUBLESHOOTING

PROBLEM
Filler Cap Leaks
Leak in Fuel Line
Fuel Discharge From Vents

3. MAINTENANCE PRACTICES

A. TANK REMOVAL

(1) REMOVAL

(a) Drain the fuel tanks through the drains located on the underside of the wing.
(b) Remove the fuel tank covers.
(c) Remove the front, the upper and the lower wing root-fairing panels.
(d) Disconnect the supply and fuel vent check valve from the tank.
(e) Remove the nipple fittings from the tank.
(f) Unfasten the fuel tank straps.
(g) Unfasten the drag brace tube at the inboard end.
(h) Carefully lift the tank out of the tank bay allowing the drag tube to pivot at the
outboard end.

(2) INSPECTION

(a) Visual inspect for damage, leaks and distortion.
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Page: 4
CUB CRAFTERS, INC.
CC18-180 MAINTENANCE MANUAL
PROBABLE CAUSE
Filler Cap Improperly Installed
Seal Improperly Installed
Deteriorated Seal
Loose Connector(s)
Chaffing
Defective Thread
Defective Fuel Check Valve
REMEDY
Install Filler Cap Properly
Replace Fuel Cap Seal
Replace Fuel Cap Seal
Inspect and Tighten Connector(s)
Replace Fuel Line
Replace Threaded Component
Clean Fuel Check Valve,
Reassemble, or Replace
Manual number TC10000AMM
Date: 04/16/08