TM-9-2350-261-20-4 Unit Maintenance Manual Volume 4 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
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TM 9-2350-261-20-4 REPLACE/REPAIR COOLANT HEATER CONTROL BOX 0648 00 THIS WORK PACKAGE COVERS: Removal (page 0648 00-1). Inspection-Acceptance and Rejection Criteria (page 0648 00-2). Installation (page 0648 00-2). 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) M a t e r i a l s / P a r t s Lockwasher (2) P e r s o n n e l R e q u i r e d Unit Mechanic R e f e r e n c e s WP 0070 00 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) Battery ground lead disconnected (WP 0294 00) REMOVAL 1. Disconnect circuit 400A lead (1) from heater control box lead (2). 2. Disconnect heater wiring harness (3) from heater control box (4). 3. Remove two screws (5) and control box (4) from control box case (6). 4. Remove two screws (7), lockwashers (8), and case (6) from support bracket. Discard lockwashers. 0648 00-1