TM-9-2350-261-20-3 Unit Maintenance Manual Volume 3 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
Page 149 of 936
TM 9-2350-261-20-3 REPLACE COMMANDER’S HATCH VISION BLOCK, LOCKS, AND SEALS 0451 00 THIS WORK PACKAGE COVERS: Removal (page 0451 00-1). Installation (page 0451 00-3). INITIAL SETUP: M a i n t e n a n c e L e v e l Unit T o o l s a n d S p e c i a l T o o l s General Mechanic’s Tool Kit (WP 0780 00, Item 29) Socket Wrench Set (WP 0780 00, Item 96) Torque Wrench (WP 0780 00, Item 102) Torque Wrench (WP 0780 00, Item 104) M a t e r i a l s / P a r t s Adhesive (WP 0782 00, Item 2) Seal Spring pin P e r s o n n e l R e q u i r e d Unit Mechanic E q u i p m e n t C o n d i t i o n Engine stopped (see your -10) Carrier blocked (see your -10) Vision block removed (see your -10) Ramp lowered (see your -10) REMOVAL NOTE Steps 1 - 4 apply to all carriers except the M1064. NOTE There are five vision blocks on the commander’s hatch. Each block has two locks and one seal. Task is for one lock and one seal. 1. Remove thumbscrew (1) from arm (2). 2. Remove spring pin (3) from arm (2). Discard pin. 3. Remove arm (2) and washer (4) from hull bracket. 4. Scrape seal (5) from vision block opening. 0451 00-1