CSP−900RMM−2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 606
Revision 20
28-10-00
3. Supplemental Fuel Quantity Operational
Test
(Ref. Figure 602)
(1). Defuel supplemental fuel tank (Ref
Section 12-00-00).
(2). Place helicopter in normal ground
attitude of 3 degrees nose up (Ref.
Section 08-20-00).
(3). Verify the AUX FUEL XMIT circuit
breaker on the A620 electrical load
center is in (Ref. Section 96-00-00).
(4). Apply electrical power to the aircraft
(Ref. Section 96-00-00).
(5). Verify supplemental fuel quantity
indicator (3) indicates EMPTY.
(6). Verify supplemental fuel quantity
indicates from EMPTY to FULL as
supplemental fuel tank is filled (Ref.
Section 12-00-00).
(7). Remove power from aircraft (Ref.
Section 96-00-00).
4. Supplemental Fuel Transfer Operational
Test
(Ref. Figure 602)
(1). Service main fuel tank to approximate
ly 564 lb (256 kg) (83 U.S. gal (314
L)) (Ref. Section 12-00-00).
(2). Fill the supplemental fuel tank full
(Ref. Section 12-00-00)
(3). Verify the IIDS and FUEL PROBE
circuit breakers on the A601 essential
circuit breaker panel are in (Ref.
Section 96-00-00).
(4). Verify the AUX FUEL XMIT and AUX
FUEL circuit breaker on the A620
electrical load center is in (Ref. Section
96-00-00).
(5). Apply electrical power to the aircraft
(Ref. Section 96-00-00).
(6). Place supplemental fuel transfer switch
(2) in the ON position.
(7). Verify pump indicator light (1) illumi
nates and transfer pump is operating
audibly.
(8). Transfer of fuel shall stop once 34 lb
(15 kg)(5 U.S. gal (18.9 L)) to 170 lb
(77 kg)(25 U.S. gal (94.6 L)) of fuel
has been transferred.
NOTE: Fuel transfer has stopped when the
main and supplemental fuel quantity indi
cators have stabilized and possibly an audi
ble change in transfer pump sound.
(9). Continue to run transfer pump for 10
minutes and verify no change in fuel
quantity indication for main or supple
mental fuel tank.
(10). Remove power from aircraft (Ref.
Section 96-00-00).
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