ACT Auto Transfer System (Manual transfer from the ACT(s) to the center tank operative)

28-28-01B	ACT Auto Transfer System (Manual transfer from the ACT(s) to the center tank operative)

Applicable to: -

- During cockpit preparation

Establish cockpit to ground communications for the following procedure.

REFUEL PANEL DOOROPEN

The refuel panel door must be open to check the operation of the manual transfer.

If the center tank is full:

ACT pb-swCHECK AUTO

TEST swSELECT AND MAINTAIN HI. LVL

Manual fuel transfer from the ACT(s) to the center tank is usually performed with the center tank not full (center tank high level sensor dry). Therefore, if the center tank is full, keeping selected the TEST sw on the refuel/defuel control panel overrides the high level sensor.

CAUTION:

When the ACT pb-sw is set to FWD, fuel may spill out from the center tank to the left surge tank. Once manual fuel transfer is checked operative, set immediately the ACT pb-sw to AUTO. Otherwise, fuel may spill out from the left tank.

ACT pb-swFWD

FUEL SD PageMONITOR

Manual fuel transfer is checked operative when one of the following occurs:

The ACT to center tank fuel transfer indication is fully green
The fuel quantity of one ACT decreases (ACT 1, or (If Installed) ACT 2 if not empty).

ACT pb-swAUTO

TEST swRELEASE

REFUEL PANEL DOORCLOSE

- 30 min AFTER TAKEOFF

ACT pb-swFWD

FUEL SD PageMONITOR

Check that the fuel is transferred from the ACTs to the center tank.

If necessary perform a descent to 270 FL.

When ACT (both ACTs if two ACTs installed) is empty:

ACT pb-swAUTO