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TM 5-4210-229-14&P
4-109. CONTROL KNOBS AND INDICATOR LIGHTS REPLACEMENT.
This task covers:
a. Removal
b. Installation
INITIAL SET-UP
Tools
General Mechanics Tool Kit
Materials/Parts
Control Knobs and Lights as required
(Appendix E. Figure 75)
Equipment Condition
Para. Equipment Description
4-106 Cluster Assembly Removed
General Safety Instructions
Engine OFF.
Transmission in (N) neutral.
Parking brake set.
REMOVAL
a. Control knob removal.
Remove set screw or retaining ring and
remove control knob.
b. Indicator light removal.
Pull and remove light bulbs as necessary.
INSTALLATION
a. Control knob installation.
Position control knob on shaft and secure using
either a set screw or retaining ring.
b. Indicator light installation.
(1) Install replacement light.
(2) Install cluster assembly (paragraph 4-106).
4-110. SIREN/PUBLIC ADDRESS SYSTEM REPLACEMENT.
This task covers:
a. Removal
b. Installation
INITIAL SET-UP
Tools
General Mechanics Tool Kit
Materials/Parts
Siren (3691)
General Safety Instructions
Engine OFF.
Transmission in (N) neutral.
Parking brake set.
REMOVAL
a. Lift microphone (1) out of microphone' bracket
(2).
b. Remove two screws (3) and flat washer (4).
c. Lift siren and PA control unit (5) off mounting
bracket (6).
d. Disconnect electrical connection from back of
siren/PA system (5).
e. Remove two screws (7), flat washer (8), and
mounting bracket (6).
4-122
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