TM 9-4520-272-14&P
FIELD (UNIT) MAINTENANCE
LARGE CAPACITY FIELD HEATER
NSN 4520-01-500-1534
OPERATOR BOX MOUNTING BRACKET
REPLACE
INITIAL SETUP:
Tools
Personnel Required
Tool Kit, General Mechanics (Item 1, WP 0092
MOS 63J or 52C
Riveter, Blind Hand St, Straight Head; for 1/8,
9/64, & 0.188 in Rivet Sizes (Item 10, WP 0092)
Materials/Parts
Equipment Condition
Rivet, blind (Item 28, WP 0119 00)
Heater shut down and cool. (WP 0005 00)
REPLACE (UPPER BRACKET)
1. To replace the upper operator box mounting bracket (1), drill out the rivets (2) that secure the bracket
with an appropriately sized drill bit that removes the head of the rivet without enlarging the mounting
hole.
2. Remove the damaged bracket (1).
3. Install a new bracket (1) by aligning the holes in the bracket with the holes in the cabinet (3).
4. Install new rivets (2) using a hand riveter.
REPLACE (LOWER BRACKET)
1. To replace the lower locking fastener (4), drill out the rivets (5) that secure the fastener (4) with an
appropriately sized drill bit that removes the head of the rivet without enlarging the mounting hole.
2. Remove the damaged fastener (4).
3. Install a new fastener (4) by aligning the holes in the fastener with the holes in the cabinet (6).
4. Install new rivets (5) using a hand riveter.
0024 00-1
