BOOM Cleaner Removes Residues That Can Cause Tracking
Polywater® BOOM™ Prewash Wipes are saturated towels that clean grease, tar, creosote, salt spray, hydraulic fluid, pine pitch, insects and road debris off insulated fiberglass boom arms, insulators, and buckets. Tracking on insulated bucket trucks occurs when too much residue builds up and allows a pathway for electrical current. It is important to clean and inspect boom and bucket trucks on a regular basis.
Dirt accumulated during normal use can affect a boom’s dielectric properties. Annual dielectric testing is not enough to ensure safe operation. Insulated areas of a boom truck should be cleaned regularly with an approved product such as Polywater® Boom™ Wash to reduce risk for personnel. Common degreasers and solvents can actually harm booms by stripping the gel coat and causing weak or soft spots. Cleaners and protectants designed specifically for fiberglass booms are recommended.
Once the boom is properly cleaned, apply a good wax to protect the surface and force water beading during misty or wet weather. American Polywater manufactures a specialty fiberglass wax available in pint cans (cat #W-16) or individual towelettes (cat #W-1). All products used on a boom truck should be approved by the aerial lift manufacturer.
Specifications and Applications:
Testing: Companies should follow boom truck manufacturer guidelines on the frequency of dielectric testing, proper cleaning practice, and other maintenance procedures. The ANSI A92.2-1990 Standard (Section 5.4.3) also addresses proper dielectric testing intervals and field inspections for aerial truck testing.
Guidance: Common degreasers or solvents can harm and strip the gel coat on the boom, causing weak or soft spots. Many crews have access to solvents and know how well these solvents remove grease, but many of those solvents can be harmful to the fiberglass portion of the boom arm or bucket. Some cleaners contain abrasives and leave a considerable residue. Others, like acetone, xylene, and toluene, can cause permanent damage if left in contact with the surface for too long a period. These solvents are also flammable and are often hazardous. Personnel should be trained to use only BOOM Wash for the boom and bucket areas to keep the truck in proper working order.
Protect: After cleaning a boom or bucket truck with BOOM Wash, the fiberglass areas should be treated with Polywater Wax to protect the gel coat surface. Available in bulk 16-ounce bottles (W-16) or presaturated wipes (W-1).