REPAIR INSTRUCTIONS CONTINUED
b. Remachining of machined surfaces to repair damage, warpage, or uneven surfaces is not permitted.
Repair damaged threaded pipe plug or screw threads with a tap or die. Repair oversized holes with
a. Repair minor thread damage with a thread die.
b. Replace studs having stripped or damaged threads as described below:
(1) Remove using a stud remover. Back studs out slowly to avoid heat buildup and seizure that can cause
stud to break off.
(2) 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.
(3) Install replacement stud slowly to prevent heat buildup and break-off.
a. Remove gears using pullers.
b. Only minor repairs to gears are permitted. Remove minor nicks, burrs, or scratches on gear teeth with:
(1) Fine-mill file.
(2) Abrasive cloth dipped in solvent cleaning compound.
a. When bushings and bushing type bearings seize to a shaft and spin in the bore, associated parts must
also be replaced.
b. It may be necessary to heat bearings to aid in installation.
6. Oil Seals.
a. Remove oil seals by pressing or prying out, being careful not to damage casting or adapter bore.
b. Always install new seal in bore using proper seal installation tool.
7. Painting. Upon installation, restored parts must be painted in accordance with TM 43-0139.
Refer to Field Maintenance PMCS (WP 0017 and WP 0018) for detailed, illustrated instructions on proper lubrica-
tion. The following are some general practices to remember:
a. Use correct lubricant.
Clean all fittings and area around fill and drain points before lubrication.
d. Lubricate clean disassembled and new parts to prevent rust.
STANDARD TOOL REQUIREMENTS
1. The following are general practices regarding the use of tools:
a. Always use proper tool kit and tools for procedure being performed.
b. Ensure tools are clean and lubricated to reduce wear and to prevent rust.
Keep track of tools. Do not be careless with them.
d. Return tools to toolbox when finished with repair or maintenance.
e. Return toolboxes and tools to tool storage when not in use.
Inventory tools before and after each use.