ZENAIR CH2000 SERVICE MANUAL
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WING TANK SYSTEM - Fig. 20
The wing tanks are installed behind the wing spar, outside the walkway, and held in place by the bottom wing panels. The filler neck
and vent tube are integral parts of the tank. Each tank has a sump easy drain. The finger screen is at the tank outlet and accessible
through the small inspection plate. See Fig. 20. Each tank feeds the selector shut off valve.
REPLACEMENT OF WING TANK - Fig. 20
CAUTION: Do not loosen tank support panel unless tanks have been defueled.
1. Drain fuel from tank
2. Disconnect the fuel line at tank outlet.
CAUTION: Removing the tank support panel will allow the tank to drop: be careful to let the tank
down slowly to prevent ripping off the wiring.
3. Remove tank cover plate.
4. Remove the fuel sender and the ground wires.
5. Remove the tank.
INSTALLATION
1 Verify that the cork padding is not damaged and is in proper position (all edges - adhesive “3M-Scotch Grip 847”.)
2. Follow the steps for removal in inverse order.
3. Seal with sealer 3M ref. 847, the filler neck to wing skin joint.
4. Check all connections for conditions, leaks and safety.
CAUTION: With wing tanks option, verify that the fuel lines cross over behind the spar as illustrated on Fig. 20.
FINGER SCREENS - Fig. 19 and Fig. 20
The finger screens are easily accessible at the tank outlet.
1. Drain the tank.
2. Disconnect the fuel lines.
3. Unscrew the finger screen fitting.
REINSTALL in reverse order after inspection and cleaning.
Check the connection for condition, leaks and safety.
FUEL VALVE - Fig. 19 and Fig. 20
The fuel valve is situated between the seats and is attached with two bolts to the underside of the seat panel.
REMOVAL
1. Drain fuel from rear tank (if installed).
2. Disconnect fuel lines from fuel valve.
3. Remove bolts securing the fuel valve.
REINSTALL in reverse order of removal and check all connections for conditions, leaks, operation and safety.
NOTE: To gain access to the fuel sender unit, the wing tanks must be removed. (For sender removal see page 8.1).
AUXILIARY FUEL PUMP - Fig. 19 and Fig. 20
The auxiliary fuel pump is bolted to the front of the firewall.
REMOVAL
1. Ensure fuel valve is in OFF position.
2. Disconnect fuel lines from pump.
3. Disconnect electrical wiring from pump.
4. Remove pump attachment bolts.
REINSTALL in the reverse order of removal and check all connections for conditions and safety.
Open the fuel valve and run the pump: check for leaks.
CAUTION: Verify the pump will operate in the correct direction. (Flow direction is indicated by arrow stamped on pump.)
8.2
3 Apr 95
