TM 1-1520-238-23
Change 2
10-567
10.135.
FUEL QUANTITY INDICATOR TEST (TF 579) SET INSTALLATION/REMOVAL
10.135.1. Description
This task covers:
Preparation. Adapter Harness/Test Calibration. Installation. Removal.
10.135.2. Initial Setup
Tools:
Electrical tool kit (item 378, App H)
Test adapter (item 9, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
Fuel quantity indicator test set (item 355, App H)
Personnel Required:
68X
Armament/Electrical System Repairer
68X3F
Armament/Electrical System Repairer/
Technical Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
10.2
Fuel system safety precautions observed
1.19
Helicopter defueled, SPA method
2.2
Access doors R190, R295, and B60R
opened; panel L40 removed
10.135.3. Preparation
CAUTION
The fuel quantity test set (TF579) oper-
ates from a 400 Hz, single-phase source.
The test set can be damaged if con-
nected to 60 Hz power source. Verify that
test set is properly grounded before ap-
plying power. Do not operate an un-
grounded test set.
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot aft circuit breaker panel, ensure FAB
FANS, CAB, XFMR RECT 1, and XFMR RECT 2
circuit breakers are closed.
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PILOT STATION
M04-3075-1
