TM 1-1520-238-23
9-476
Change 7
9.127A. ROTOR BALANCE SIGNAL PROCESSOR FILTER BOX REMOVAL/INSTALLATION
9.127A.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
9.127A.2. Initial Setup
Tools:
Electrical tool kit (item 378, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
1 1/4-inch blade putty knife (item 199, App H)
Ohmmeter (item 218, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Brush (item 34, App F)
Cloth (item 52, App F)
Methyl ethyl ketone (item 124, App F)
Sealing compound (item 177, App F)
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
2.161
CPG seat tilted forward
9.127A.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot center circuit breaker panel, open VIB
MON circuit breaker.
c. Enter CPG station (para 1.56). Observe all
safety precautions.
d. Detach connector P128 (1) from receptacle
J1 (2) of filter box (3).
e. Detach connector P128A (4) from receptacle
(A141)J1 (5).
f. Remove signal processor filter box (3).
(1) Remove four screws (7) and washers (6).
(2) Remove filter box (3).
GO TO NEXT PAGE
M04-3301-1
