TM 9-4520-272-14&P
FIELD (DIRECT) SUPPORT MAINTENANCE
LARGE CAPACITY FIELD HEATER (LCFH)
NSN 4520-01-500-1534
ROCKER ARM ASSEMBLY
REMOVE, INSPECT, INSTALL
INITIAL SETUP:
Tools
Personnel Required
Tool Kit, General Mechanics (Item 2, WP 0092
MOS 63J or 52C
Wrench, Torque (Item 12, WP 0092 00)
Micrometer, Caliper (Item 13, WP 0092 00)
Materials/Parts
Equipment Condition
Solvent, degreasing (Item 24, WP 0119 00)
Heater shut down and cool.
Rag, wiping, clean (Item 4, WP 0119 00)
Engine bay access door open.
Main battery switch OFF and handle removed.
Rocker cover removed (WP 0041 00)
NOTE
Engine maintenance requires metric tools for the removal of all hardware and
assemblies.
REMOVAL
1. Remove rocker arm support (1) from cylinder head (2) by removing two bolts (3). Place assembled
support and rocker arms on a clean work surface for further disassembly.
2. Remove rocker arms (4 and 5) from rocker arm support (1). Remove lock nuts (6), adjusting screws
(7), and valve cap (8).
3. Ensure that intake and exhaust valve components (9) remain together.
CLEANING
WARNING
Cleaning solvents are flammable and toxic to eye, skin, and respiratory
tract. Skin and eye protections are required when working in contact with
cleaning solvents. Avoid repeated or prolonged contact. Work in well
ventilated area only. Keep away from heat, sparks, and open flame. Do not
smoke while using cleaning solvent. Failure to observe this warning can
result in injury or death to personnel.
Clean rocker arm components with cleaning solvent and a clean rag. Allow to air dry.
0077 00-1
