(b)
Clean the component interface and/or the adjacent area.
(c)
Do an inspection of the component interface and/or the adjacent area.
(d)
Install the new o-ring (6), to the APU fuel LP valve actuator (1).
(e)
Install the bonding strap (5) to a mounting stud (Ref. TASK 20-28-00-912-004).
(f)
Attach the APU fuel LP valve actuator (1) and the bonding strap
(5)
with the washers (4) and the self-locking nuts (3).
1EFF : ALL 1 28-29-51Page 408 1 1 May 01/01 1 1 1CES 1
(g) TORQUE the self-locking nuts (3) to between 0.7 and 0.8 m.daN
(61.94 and 70.79 lbf.in).
(h)
Remove the blanking caps from the electrical connectors.
(i)
Make sure that the electrical connectors are clean and in the correct condition.
(j)
Connect the electrical connectors (2) to the APU fuel LP valve actuator (1).
(2)
Adaptor (P/N: A08900)
(a)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(b)
Clean the component interface and/or the adjacent area.
(c)
Put the adaptor (7) in position on the mounting studs.
(d)
Put the bonding strap (5) in position and install the washers (4) and the self-locking nuts (3) to the adaptor (7) (Ref. TASK 20-28-00-912-004).
(e)
TORQUE the self-locking nuts (3) to between 0.7 and 0.8 m.daN
(61.94 and 70.79 lbf.in).
(3)
Actuator (P/N: A08000)
(a)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(b)
Clean the component interface and/or the adjacent area.
(c)
Do an inspection of the component interface and/or the adjacent area.
(d)
Install the actuator (1) with the clamp (6) to the adaptor (7).
(e)
TORQUE the nuts of the clamp (6) to 0.13 m.daN (11.50 lbf.in).
(f)
Install the bonding strap (5) with the washer (4) and the nut (3) to the adaptor (7) (Ref. TASK 20-28-00-912-004).
(g)
TORQUE the self-locking nuts (3) to between 0.7 and 0.8 m.daN
(61.94 and 70.79 lbf.in).
1EFF : ALL 1 28-29-51Page 409 1 1 May 01/01R 1 1 1CES 1
(h)
Remove the blanking caps from the electrical connectors.
(i)
Make sure that the electrical connectors are clean and in the correct condition.
(j)
Connect the electrical connectors (2) to the APU fuel LP valve actuator (1).
Subtask 28-29-51-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD, 1QC, 2QC, 3QC, 1QF, 2QF.
Subtask 28-29-51-710-050
C. Do the operational test of the APU fuel LP valve actuator (Ref. TASK 28-29-00-710-001).
5. Close-up
________ Subtask 28-29-51-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the left MLG door (Ref. TASK 32-12-00-410-001).
(3)
Remove the access platform(s).
(4)
Remove the warning notice(s).
1EFF : ALL 1 28-29-51Page 410 1 1 May 01/01 1 1 1CES 1 INDICATING - DESCRIPTION AND OPERATION
______________________________________
1. General
_______
The indicating systems are:
-
the Fuel Quantity Indicating (FQI) system (which gives separate and total fuel quantity indications)
-
the Magnetic Level Indicators (MLIs) (a secondary system used to estimate the fuel quantity when the aircraft is on the ground)
-
the Fuel Level Sensing System (FLSS), which gives indications and warnings (when the fuel is at specified levels and temperatures).
2. Component Location
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 001)
**ON A/C 301-399,
(Ref. Fig. 001A)
**ON A/C ALL
3. System Description
__________________
A. Quantity Indicating (Ref. 28-42-00)
The Fuel Quantity Indicating (FQI) system measures the total quantity of fuel in the range from unusable to fuel overflow. It gives indications for each of these fuel tanks:
-
the LH and RH wing tanks
-
the center tank.
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
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