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TM 5-4210-220-12
4-15. AUXILIARY POWER UNIT - Continued
4-15.8 Engine Intake and Exhaust Valves.
This task covers
a.
Removal
b.
Inspection
c.
Installation
d.
Repair
TOOLS
Shop Equipment, Automotive
Maintenance and Repair,
NSN 4910-00-754-0705
EQUIPMENT CONDITION
APU Shutdown (see para. 2-12)
Engine Dismounted from Base
(see para. 4-15.1)
MATERIALS/PARTS
31, Appendix E Grinding Compound
500.4400.015 Valve Cover Gasket
520.4730.030 Cylinder Head Gasket
520.4730.031 Cylinder Head Gasket
520.4730.032 Cylinder Head Gasket
520.4730.033 Cylinder Head Gasket
500.4740.018 Push Rod Cover Seal
500.4740.025 Push Rod Cover Seal
REMOVAL
(1)
Remove left hand and right hand shrouds as
detailed in para. 4-15.9 REMOVAL, steps 1 thru
4.
(2)
Lift off oil breather cover (6) and lay aside.
(3)
Lift off ether start plug (3) and lay aside.
(4)
Remove machine screws (1) together with
engine lift bracket (2).
(5)
Remove valve cover (4) together with gasket
(5).
(6)
Remove both acorn nuts (7) from head studs.
(7)
Remove rocker arm assembly (8).
(8)
Remove injector retaining nuts (9) and washers
(10).
(9)
Lift off injector holding plate (11) and ether plug
(3) Pull injector (12) out of cylinder head.
(10)
Remove remaining head nuts (13) and washers
(14).
(11)
Lift head assembly (15) from studs Remove
cylinder head gasket (16).
(12)
Lift out push rods (17) from push rod tube (18)
on drive side of cylinder.
4-162
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