TM 1-1520-238-23
1-147
1.46.
TARGET ACQUISITION AND DESIGNATION SIGHT (TADS) CLEANING
1.46.1. Description
This task covers:
TADS Turret and Shroud Cleaning. Optical Relay Tube (ORT) Window Cleaning.
1.46.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Aircraft maintenance tool kit (item 373, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
14-quart utility pail (item 222, App H)
Materials/Parts:
Cloth (item 52, App F)
Detergent (item 71, App F)
Personnel Required:
67R
Attack Helicopter Repairer
68X
Armament/Electrical System Repairer
References:
TM 1-1270-476-20
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
TM 1-1270-476-20
Day sensor assembly
(DSA) window cover re-
moved; night sensor as-
sembly (NSA) window
cover removed; boresight
module window cover re-
moved; Pilot/CPG station
maintenance performed
CAUTION
Do not clean DSA, NSA, or boresight windows unless instructed to do so. Refer to
TM 1-1270-476-20 if DSA, NSA, and boresight windows are dirty.
Water can destroy inner optics and electronics. Ensure shroud assembly and installation hardware
are securely fastened before cleaning.
Do not touch lens with bare hands. Do not wipe lens with cleaning cloth. Damage to special optical
coatings could result. Clean with appropriate materials only (TM 1-1270-476-20).
NOTE
Water flow over windows is allowed when washing.
1.46.3. TADS Turret and Shroud Cleaning
a. Remove foreign matter (leaves, twigs, insects, etc.) from painted areas to be cleaned.
b. Wash painted areas with clean lint-free cloth and water. Move TADS out of stow as necessary to clean all
paint surfaces. Use cloth (item 52, App F).
c. Wipe cleaned area with dampened lint-free cloth. Use cloth (item 52, App F). Go to step d if additional
cleaning is necessary. Go to step e if clean.
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