TM 1-1520-238-23
Change 7 9-470.1
9.125A. TEMPERATURE ALARM CONTROL UNIT FILTER REPLACEMENT
9.125A.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
9.125A.2. Initial Setup
Tools:
Electrical tool kit (item 378, App H)
Ohmmeter (item 218, App H)
Personnel Required:
68X
Armament/Electrical System Repairer
68X3F
Armament/Electrical System Repairer/
Technical Inspector
References:
TM 1-1520-238-T
TM 55-1500-323-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access covers L545 and R545 removed
9.125A.3. Removal
NOTE
This task is typical for both tail rotor
and intermediate gearbox temperature
alarm control unit filters.
Removal of tail rotor gearbox tempera-
ture alarm control unit filter box re-
quires detaching P201 from J1 of filter
box and removal of intermediate gear-
box temperature alarm control unit fil-
ter box requires detaching P200 from
J1 of filter box.
a. Remove temperature alarm control unit filter
box (1).
(1) Detach connector P201A(1) from receptacle
J1 (2) of tail rotor gearbox temperature alarm
control unit.
(2) Detach connector P200A (3) from receptacle
J1 (4) of intermediate gearbox temperature
alarm control unit.
(3) Remove four screws (5), washers (6) and
standoffs (7).
(4) Remove control unit mount (8).
(5) Detach connector (9) from J1 (10) of filter box
(11).
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M04-3711-1
