TM 5-4220-226-14&P
b. Cleaning and Inspection
(1) Clean parts with NID solution and soft bristle brush. Wipe with clean, lint4ree cloths. Rinse with fresh
water; air or blow dry.
(2) Inspect components for pitting, cracks, wear, or other signs of damage.
c. Repair
Repair is limited to the replacement of defective parts.
d. Reassembly
(1) Apply 2 1/2 turns of Teflon tape clockwise around threads on adapter (3) leaving three threads free.
Install adapter (3) in valve (2). Do not allow any excess tape to cover the end of the adapter or to
enter the seat.
(2) Apply 2 1/2 turns of Teflon tape clockwise around threads on adapter (1) leaving three threads free.
(3) Install adapter (1) in valve body (2). Do not allow any excess tape to cover the end of the adapter or
to enter the valve body.
5-10. Side Block Assembly Maintenance.
This task covers:
a. Disassembly
b. Cleaning and Inspection
c. Repair
d.
Reassembly
INITIAL SETUP
Tools
Materials Required (continued)
Tool Kit, General Mechanic's (item 4, appx B)
Nonionic Detergent (NID Solution) (item 3, appx E)
Screwdriver, Notched (item 5, appx B)
Silicone Lubricant (item 8, appx E)
Preformed Packing
Materials Required
Equipment Conditions
Soft Bristle Brush (item 1, appx E)
Clean, Lint-Free Cloths (item 2, appx E)
Side block assembly removed (para 4-13).
Warm Fresh Water (item 4, appx E)
Emergency air supply valve removed (para 5-8).
One-way valve assembly removed (para 5-9).
a. Disassembly
(1) Using notched screwdriver, unscrew locknut (1). Remove locknut, spring (2), control knob (3), and
washer (4).
(2) Remove bonnet (5) from side block. Separate stem (6) and preformed packing (7) from bonnet.
Separate washer (8) and preformed packing (9) from stem. Discard packings (7 and 9).
5-6
