HAMMER STRENGTH MTS OWNER’S MANUAL 4. Maintenance
4-2
CLEANING THE SHIELDS
The shields on the MTS machine are made from polycarbonate. Adherence to regular and
proper cleaning procedures is recommended to preserve the appearance.

Washing To Minimize Scratches

Wash the polycarbonate shields with a mild soap or detergent (e.g. Joy Dish washing
Liquid) and lukewarm water using a clean sponge or a soft cloth. Rinse well with clean
water. Dry thoroughly with a chamois or moist cellulose sponge to preve nt water spots. Do
not scrub or use brushes on these products; their coating is UV-resistant, not mar-resistant.
Fresh paint splashes, grease and smeared glazing compounds can be rem oved easily
before drying by rubbing lightly with a grade of VM&P naphtha or isoprop yl. Afterward, a
warm final wash should be made, using a mild soap or detergent solut ion and ending with a
thorough rinsing with clean water.

Minimizing Hairline Scratches

Scratches and minor abrasions can be minimized by using a mild autom obile polish. Four such products
that tend to polish and fill scratches are: Johnson Paste Wax, Novus Plas tic Polish #1 and #2, Mirror Glaze
plastic polish, and Plexus. It is suggested that a test be made on a sm all corner of a shield with the product
selected and that the polish manufacturer’s instructions be followed.

Some Important “Don’ts”

● DO NOT use abrasive or highly alkaline cleaners on the shields.
● Never scrape shields with squeegees, razor blades or other sharp instrum ents.
● Benzene, gasoline, acetone or carbon tetrachloride should never be us ed on the shields.
● DO NOT clean shields in hot sun or at elevated temperatures.

Compatible Cleaners For Shields

The following cleaning agents have been found compatible with pol ycarbonate. The manufacturer’s
recommendations and instructions should be followed. They are: Jo y, Freon T.F., Palmolive Liquid, Top
Job, VM&P grade naphtha, Windex with Ammonia D.

Removal Of Paint, Marking Pen, Labels

Butyl cellosolve works well for removal of paints, mark ing pen inks, lipstick, etc.
Labels, stickers, etc. may be removed using kerosene or VM&P naphtha. When the solvent will not
penetrate sticker material apply heat (hair dryer) to soften the adhesiv e and promote removal. GASOLINE
SHOULD NOT BE USED.