TM 9-2330-392-14&P
4-100
Change 2
4-36
LUNETTE REPLACEMENT.
This task covers:
a. Removal
d. Assembly
b. Disassembly
e. Installation
c. Cleaning and Inspection
Initial Setup:
Equipment Conditions:
• Handbrakes applied.
• Wheels chocked (para 2-8.1).
Tools/Test Equipment:
• General mechanics tool kit
Materials/Parts
• Cotter Pin
• Wire Brush (Item 3, Appendix E)
• Dry Cleaning Solvent (Item 5, Appendix E)
a.
REMOVAL
1.
Remove cotter pin (2) and washer (4) from master pin (1). Discard cotter pin.
2.
Remove master pin (1) from actuator assembly (3).
3.
Remove lunette assembly (5) with attached damper (9) and spacers (8) from brake actuator (3) by pulling lunette
assembly (5) straight forward.
b.
DISASSEMBLY
1.
Remove cotter pin (7) from pin (6) securing damper (9) to lunette (5). Discard cotter pin.
2.
Remove damper (9) and spacers (8) from lunette (5).
c.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear goggles and gloves and use
solvent only in a well-ventilated area. Avoid contact with skin, eyes, and clothes, and DO NOT
breathe vapors. DO NOT use near open flame or excessive heat. The solvent’s flash point is 100°F
to 138°F (38°C to 59°C). If you become dizzy while using cleaning solvent, immediately get fresh
air and medical help. If solvent contacts eyes, immediately wash your eyes and get medical aid.
1.
Clean all removed components with dry cleaning solvent and allow to dry.
2.
Inspect components for wear, cracks, breaks, corrosion, or other damage. Replace if damaged.
3.
Inspect damper for leaks. Replace if leaking is evident.
4.
Remove any corrosion with a wire brush
d.
ASSEMBLY
1.
Install damper (9) on lunette (5) with pin (6) and new cotter pin (7).
2.
Position two rollers (8), with beveled sides facing out, on either side of damper (9) inside lunette (5). Use 5/8”
deep well socket to hold damper (9) and two rollers (8) in place in lunette.
