TM 55-2815-574-24
SUSTAINMENT MAINTENANCE
ENGINE
CYLINDER HEAD POPPET VALVE ROCKER ARM REPAIR
INITIAL SETUP:
Tools and Special Tools
References
General mechanic's tool kit
TM 55-1925-205-24P
(WP 0179, Table 1, Item 130)
Chemical gloves (WP 0179, Table 1, Item 52)
Equipment Condition
Hand operated arbor press
Engine cool to touch
(WP 0179, Table 1, Item 68)
Single channel ground and airborne radio system
Industrial goggles (WP 0179, Table 1, Item 54)
(SINCGARS) antenna removed
Reciprocating power drive compressor unit
(TM 11-5820-890-10-8)
(WP 0179, Table 1, Item 27)
Main navigation mast removed
Utility apron (WP 0179, Table 1, Item 8)
(TM 55-1925-205-23)
Intake plenum assembly removed
Materials/Parts
(TM 55-1925-205-23)
Cleaning cloth (WP 0178, Table 1, Item 13)
Operator's cab removed (TM 55-1925-205-23)
Cleaning compound (WP 0178, Table 1, Item 9)
Engine hatch removed (TM 55-1925-205-23)
Hollow pin (WP 0180, Table 1, Item 86)
Crankcase breather limiter assembly removed
Sleeve bearing (WP 0180, Table 1, Item 85)
Sleeve bearing (WP 0180, Table 1, Item 87)
Air inlet collector assembly removed (WP 0104)
Sleeve bushing (WP 0180, Table 1, Item 66)
Air intake housing removed (WP 0103)
Cylinder head poppet valve rocker arm cover
removed (WP 0044)
Personnel Required
Fuel manifolds removed (WP 0051)
Engineer 88L
NOTE
This procedure is typical for all poppet valve rocker arms on both starboard and port
engines.
DISASSEMBLY
1.
Place rocker arm assembly (Figure 1, Item 1) in arbor press.
Figure 1. Rocker Arm.