M27 DRIVER'S PERISCOPE RETAINING HARDWARE REPLACEMENT (Sheet 1 of 1)
TOOL: 9/16 in. combination box and open end wrench (2 required)
PRELIMINARY PROCEDURE: Remove M27 periscope (if installed) (TM 9-2350-222-10)
Using two wrenches, remove four nuts (A).
Remove retainer (B), nuts (C), and two lockwashers (D). Throw lockwashers away.
Using fingers, remove two wing nuts (E), washers (F), and two retainers (G).
Inspect all parts for damaged threads, cracks, or excessive corrosion. Replace parts as necessary.
Using fingers, install four washers (F), two retainers(G), and two wing nuts(E).
Install nuts (C) and new lockwashers (D) onto retainer (B).
Install retainer (B) through support block and install four nuts (A).
Install M27 periscope as required (TM 9-2350-222-10).