Specifications

TM 05539-IN
GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED 0009 00
0009 00-2
CLEANING INSTRUCTIONS 0009 00
WARNING
• Use only Cleaner, Lubricant, and Preservative (CLP) for cleaning and lubrication of the M40A3/A5
Sniper Rifle in all but the most severe conditions.
• Improper cleaning methods and use of unauthorized cleaning solvents may injure personnel and dam-
age equipment. Refer to TM 9-247_, Materials Used for Cleaning, Preserving, Abrading, and Cementing
Ordnance Materiels and Related Materiels Including Chemicals, for correct information.
• Cloths or rags saturated with solvent cleaning compound must be disposed of IAW authorized facilities’
procedures.
• Eye shields must be worn when cleaning with a wire brush. Flying rust and metal particles may cause
injury to personnel.
• Particles blown by compressed air are hazardous. Use a maximum of 30 psi (207 kPa) when cleaning
components. DO NOT exceed 15 psi (103 kPa) nozzle pressure when drying parts with compressed air.
DO NOT direct compressed air against human skin. Make sure air stream is directed away from user
and other personnel in the area. To prevent injury, user must wear protective goggles or face shield.
a. Cleaning instructions are the same for the majority of the parts and components of the
weapon.
b. 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, inspection,
repair, and assembly operations:
(1) Clean all parts before inspection, after repair, and before assembly.
(2) To prevent contamination, hands should be kept free of any accumulation of grease, which can
collect dust, dirt, or grit.
(3) After cleaning, all parts should be covered or wrapped to protect them from dust and dirt. Parts
that are subject to rust should be lightly oiled.
• Failure to follow these warnings may result in injury to personnel.
1. Cleaning Disassembled Parts
.
a. Place all disassembled parts in wire baskets for cleaning.
b. Dry and cover all cleaned parts.
c. Place parts on or in “racks” and hold for inspection or repair.
d. All parts subject to rusting must be lightly oiled and wrapped.
e. Keep all related parts and components together. Do not mix parts.
2. Castings
.
a. Clean inner and outer surfaces of castings and all areas with CLP and/or bore solvent.
b. Use a stiff brush to remove sludge and gum deposits.
c. Clear out all tapped (threaded) holes with compressed air to remove dirt and solvent cleaning compound.
3. Machined Surfaces
.
a. Clean machined surfaces with Cleaning compound, powder solvent (Item 8, WP 0030 00).
b. Dry surfaces with compressed air.