GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
REPAIR INSTRUCTIONS - CONTINUED
Repair minor thread damage with a thread die.
Replace studs having stripped or damaged threads as outlined below:
Remove using a stud remover. Back studs out slowly to avoid heat buildup and seizure that can cause stud
to break off.
Refer to TM 9-233 to avoid damage to castings if welding method is used.
If studs break off too short to use a stud remover, use a stud extractor to remove or use welding method:
weld bar stock or a nut to stud and remove with a wrench.
Install replacement stud slowly to prevent heat buildup and snapping off.
Use pliers to remove gears.
Only minor repairs to gears are permitted. Remove minor nicks, burrs or scratches on gear teeth with:
Fine mill file.
Bushings and Bushing Type Bearings. When bushings and bushing type bearings seize
to a shaft and spin
in the bore,
associated parts must also be replaced.
Remove oil seals by pressing or prying out, being careful not to damage casting or adapter bore.
Note orientation of seal to ensure correct installation.
Always install new seal in bore using proper seal installation tool.
Painting. Upon installation, restored parts must be painted IAW TB 43-0209.
Complete disassembly is not always necessary to make a repair. Exercise good judgment to keep disassembly and
assembly to a minimum.
Repair or replace unserviceable parts and hardware. Always replace packings, gaskets and seals with new parts.
Remove burrs with a stone or file. Remove burrs on closely fitted mating surfaces by lapping the surfaces with abrasive
Remove corrosion or rust with crocus or emery cloth. Use the method that will not damage the surface being cleaned.
Crocus cloth should be used to remove corrosion and rust from polished surfaces. Ensure critical dimensions are not
altered when using crocus cloth.
Repair damaged threads with a thread chaser or die.
When welding is authorized, procedures in TM 9-327 must be followed. Welds must be inspected for cracks.
Bearings should be inspected and maintained following procedures in TM 9-214.
Clean electrical ground contacts with emery cloth. Make sure ground connections are tight.
Repair chafed, broken or damaged electrical wiring with insulation tape, electrical, specification MIL-HH-1-595. When
soldering is required, procedures in TB SIG-222 must be followed.
After locating the malfunction and repairing the component, test it for proper function.