Powermatic DS20 operating instructions Maintenance, Forward-Reverse, Brake

Forward-Reverse

The three phase model of the DS20 has a Forward-Reverse switch (Figure 11). When changing direction with the Forward-Reverse switch, turn the lever to the OFF position and allow the disc to come to a complete stop. (Use the brake for immediate stop). Then turn the lever to the opposite direction, and allow the disc to come up to speed.

Brake

Pull the brake handle until the pad contacts the rotating disc.

Apply the brake only when the switch is OFF (On the three-phase model, only when the main switch is OFF, or the Forward/Reverse switch is OFF). Damage to the machine can occur if the brake is applied while the switch is ON.

Maintenance

Before doing any maintenance on the machine, disconnect it from the electrical supply by pulling out the plug or switching off the main switch! Failure to comply may cause serious injury.

The DS20 Sander requires minimal maintenance. Periodically, make sure the rack and the trunnions on both sides of the table (Figure 12) are lubricated with a good grade, non-hardening grease.

The table surface must be kept clean and free of rust for best results. If rust appears, use a mixture of household ammonia, a good commercial detergent and #000 steel wool. Alternatively, commercial rust removers can be found at many hardware stores.

Apply a light, protective coating over the table, such as paste wax. Products in aerosol form are also available in hardware stores and supply catalogs. Whatever method is chosen, the coating should protect the metal and provide a smooth surface, without staining the wood.

If the power cord is worn, cut or damaged in any way, have it replaced immediately.

Figure 11

(3 Phase model only)

Figure 12

12