GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
Before beginning a task, find out how much teardown is needed to fix equipment as described in this manual. Some-
times complete teardown is not necessary. Remove components only as far as necessary to replace damaged or broken
All tags and forms attached to the equipment must be checked to learn the reason for removal from service. Check all
Modification Work Orders (MWOs) and Technical Bulletins (TBs) for equipment changes and updates.
Inspect seals for damage. Replace seals if damaged.
The importance of cleaning must be thoroughly understood by maintenance personnel. Great care and effort are
required in cleaning. Dirt and foreign material are a constant threat to satisfactory maintenance.
The following should apply to all cleaning operations:
Keep all related parts and components together. Do not mix parts.
Clean all parts before inspection and before installation.
To prevent contamination, hands should be kept free of accumulation of grease, which can collect dust,
dirt, or grit.
WARN I N G
Solvent cleaning compound MIL-PRF-680 Type III is an environmentally compliant and low toxic
material. However, It may be irritating to the eyes and skin. Use protective gloves and goggles. Use in
well-ventilated areas. Keep away from open flames and other sources of ignition. Failure to follow this
warning may result in injury or death to personnel.
Improper cleaning methods and use of unauthorized cleaning solvents may injure personnel and damage
equipment. Refer to TM 9-247, Materials Used for Cleaning, Preserving, Abrading, and Cementing
Ordnance Materiels and Related Materiels Including Chemicals, for correct information.
Fire extinguishers should be placed nearby when using solvent cleaning compound. Failure to follow
this warning may result in injury or death.
Cloths or rags saturated with solvent cleaning compound must be disposed of IAW authorized facilities'
procedures. Failure to follow this warning may result in injury.
Eye shields must be worn when cleaning with a wire brush. Flying rust and metal particles may cause
Particles blown by compressed air are hazardous. DO NOT exceed 15 psi (103 kPa) nozzle pressure
when drying parts with compressed air. Use a maximum of 30 psi (207 kPa) when cleaning compo-
nents. DO NOT direct compressed air against human skin. Failure to follow this warning may result in
injury or death. Make sure air stream is directed away from user and other personnel in the area. To pre-
vent injury, user must wear protective goggles or face shield.
Use solvent cleaning compound to clean any surface coated with grease or oil.
Clear out all drilled or tapped (threaded) holes with compressed air to remove dirt and solvent cleaning compound.