TM 5-5420-228-24
VISION BLOCK REPLACEMENT (EARLY MODEL CUPOLA) (Sheet 1 of 3).
TOOLS:
Screwdriver (flat tip)
7/8 in. socket with 1/2 in. drive
Putty knife
5 in. extension with 1/2 in. drive
Diagonal cutting pliers
Pliers, slip joint
Handle with 1/2 in. drive
Torque wrench with 1/2 in. drive
(0-175 lb-ft)
Vision block
PERSONNEL: One
REFERENCE: TM 5-5420-202-10
PRELIMINARY
PROCEDURE:
Open cupola cover.
REMOVAL:
1.
Using flat-tip screwdriver
remove fourteen screws (A).
Using flat-tip screwdriver
2.
pry up on bezel (B) to break
sealant and remove bezel from
cupola body (C).
Using putty knife scrape sealing
3.
compound from cupola body (C)
vision block (D) and bezel (B).
Go on to Sheet 2
TA251411
3-10