TM 9-2590-506-13&P
5-20. PILOT ASSEMBLY MAINTENANCE INSTRUCTIONS
This task covers:
a. Removal
e. Repair
b. Disassembly
f. Assembly
c. Cleaning
g. Checkout
d. Inspection
h. Installation
INITIAL SETUP
Tools, Special Tools and Test Equipment
Personnel Required
Cross Tip Screwdriver, No. 2
One
Torque Wrench, 1/4-inch drive, 50
Condition Description
pounds-inches
Internal Valve Maintenance Instructions
No. 2 Cross Tip Adapter, 1/4-inch drive
Materials/Parts
Special Environmental Conditions
None
None
a. Removal. Refer to para 5-19.b.(2) for pilot
assembly removal instructions.
b. Disassembly.
(1) Remove six screws (1) and separate
cover (2) from base (3), and then remove
diaphragm (4).
(2) Remove retaining ring (5) from poppet (6),
and then remove backup (7), spring (8)
and poppet (6) from base (3).
c. Cleaning.
Clean the
pilot
assembly
as
5-41