TM-9-2330-326-14-P
SEMITRAILER, TACTICAL, DROP DECK BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, M871A3
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
FEBRUARY 2006
TM-9-2330-326-14-P - Page 11 of 540
TM 9-2330-326-14&P
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Procedures for Servicing Brakes. Enclose the brake assembly within a negative pressure
enclosure. The enclosure should be equipped with a HEPA vacuum and worker arm sleeves. With
the enclosure in place, use the HEPA vacuum to loosen and vacuum residue from the brake parts.
As an alternative procedure, use a catch basin with water and a biodegradable, non-phosphate,
water-based detergent to wash the brake drum or rotor and other brake parts. The solution should
be applied with low pressure to prevent dust from becoming airborne. Allow the solution to flow
between the brake drum and the brake support or the brake rotor and caliper. The wheel hub and
brake assembly components should be thoroughly wetted to suppress dust before the brake shoes
or brake pads are removed. Wipe the brake parts clean with a cloth.
If an enclosed vacuum system or brake washing equipment is not available, carefully clean the
brake parts in the open air. Wet the parts with a solution applied with a pump-spray bottle that
creates a fine mist. Use a solution containing water, and, if available, a biodegradable, non-
phosphate, water-based detergent. The wheel hub and brake assembly components should be
thoroughly wetted to suppress dust before the brake shoes or brake pads are removed. Wipe the
brake parts clean with a cloth.
Wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA when grinding or
machining brake linings. In addition, do such work in an area with a local exhaust ventilation
system equipped with a HEPA filter.
NEVER use compressed air by itself, dry brushing, or a vacuum not equipped with a HEPA filter
when cleaning brake parts or assemblies. NEVER use carcinogenic solvents, flammable solvents,
or solvents that can damage brake components as wetting agents.
Cleaning Work Areas. Clean work areas with a vacuum equipped with a HEPA filter or by wet
wiping. NEVER use compressed air or dry sweeping to clean work areas. When you empty
vacuum cleaners and handle used rags, wear a respirator equipped with a HEPA filter approved
by NIOSH or MSHA, if the exposure levels may exceed OSHA or manufacturers’ recommended
maximum levels. When you replace a HEPA filter, wet the filter with a fine mist of water and
dispose of the filter with care.
Worker Clean-Up. After servicing brakes, wash your hands before you eat, drink, or smoke.
Shower after work. Do not wear work clothes home. Use a vacuum equipped with a HEPA filter to
vacuum work clothes after they are worn. Launder them separately. Do not shake or use
compressed air to remove dust from work clothes.
Waste Disposal. Dispose of discarded linings, used rags, cloths, and HEPA filters with care, such as
in sealed plastic bags. Consult applicable EPA, state, and local regulations on waste disposal.
REGULATORY GUIDANCE
References to OSHA, NIOSH, MSHA, and EPA, which are regulatory agencies in the United States,
are made to provide further guidance to employers and workers employed within the United
States. Employers and workers employed outside of the United States should consult the
regulations that apply to them for further guidance.
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