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TM 5-2420-222-34
8-8.
DIFFERENTIAL LOCK PEDAL AND LINKAGE MAINTENANCE.
This Task Covers:
a.
Removal
c.
Repair
b.
Cleaning and Inspection
d.
Installation
Initial Setup:
Equipment Conditions:
Materials/Parts:
•
Batteries removed (see TM 5-2420-222-20).
•
Rags (Item 28, Appendix B)
•
Dry cleaning solvent (Item 31, Appendix B)
Tools/Test Equipment:
•
One cotter pin
•
General mechanic's tool kit
General Safety Instructions:
•
Dry cleaning solvent is flammable and must not be used near open flame. Use only in a well-ventilated area.
a.
REMOVAL
1.
Loosen jamnut (2) on pedal (1) and rod (4).
2.
Remove pedal (1) and jamnut (2) from rod (4).
3.
Remove cotter pin (6) from pin (5). Discard cotter pin.
4.
Remove pin (5) from rod (4) and arm (7).
5.
Remove rod (4) from arm (7) and platform (3).
b.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective
goggles and gloves, and use 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-138°F (38°C-590C). 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 metal parts with dry cleaning solvent. Dry thoroughly with clean, dry rags.
2.
Inspect pedal and rod for cracks, breaks, and abnormal bends.
3.
Inspect rod for damaged threads.
c.
REPAIR
Restore damaged rod (4) threads using screw threading set.
8-42
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