When placing your order, please specify the grain size of the disc desired. . 150 mm Sanding disc There are eleven different kinds of sanding disc, having grain sizes of P16, P20, P24, P30, P36, P40, P50, P60, P80, P100, P120. When placing your order, please specify the grain size of the disc desired. Optional accessories are subject to change without notice. APPLICATIONS . Sanding metal surfaces. . Preliminary sanding of metal surfaces before painting, rust removal, removing old paint before repainting. . Finishing woodwork, correcting projections of timbers from joints or assemblies. . Preliminary sanding of wood surfaces before applying paint. PRIOR TO OPERATION 1. Power source Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate. 2. Power switch Ensure that the power switch is in the OFF position. If the plug is connected to a receptacle while the power switch is in the ON position, the power tool will start operating immediately, inviting serious accident. 3. Extension cord When the work area is removed from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable. CAUTION: Damaged cord must be replaced or repaired. 4. Attaching sanding disc For attachment/removal of the sanding disc, refer to “ATTACHMENT/REMOVAL OF SANDING DISC”. Many types of sanding discs are available; select one appropriate to the work. 5. Fixing the side handle Screw the side handle into the housing. 6. Confirm the lock lever Confirm that the lock lever is disengaged by pushing lock lever two or three times before switching the power tool on (See Fig. 2) 7. Install the air cover on the air vent on the side where the side handle is attached to divert the cooling air flow of the motor during operation as much as possible. Hook tab of the air cover to the air vent and push in the tab when installing. Use a screwdriver etc. to pull as shown in Fig. 3 when removing. PRACTICAL SANDER APPLICATIONS 1. Do not heavily push the sanding disc to the surface to be ground. Grinding operation can be achieved with the weight of the machine alone, so maintain the sanding disc to an extent that it lightly touches the surface to be ground. When the sanding disc is pushed heavily, its revolving speed drops, creating an unevenly finished surface and causing motor seizure from overload. 2. Rather than applying the entire disc surface to the metal surface to be gorund, use the sander by inclining it approximately 15° – 30° to grind with the disc peripheral portion. (Fig. 1) 3. Switching on the sander The switch is of the quick-break trigger system. When the trigger is pulled, the switch turns on; and when it is released, the switch turns off. When it is desired to keep the power on for a prolonged period in continuous use, the stopper can be used to keep the switch on even after the trigger has been released. (First pull the trigger, and then press the stopper.) To turn the switch off, first pull the trigger again to disengage the stopper. 4. Precaution after use Do not lay the sander down immediately after using on a place where there are many shavings, much dirt and dust until it has completely stopped revolving. CAUTION When the disc sander is not in use, the pwer source should be disconnected. ATTACHMENT/REMOVAL OF SANDING DISC (Fig. 2) CAUTION: Be sure to switch power OFF and disconnect the attachment plug from the receptacle to avoid serious trouble. (1) Attach wahser, rubber pad and sanding disc on the spindle, in that order. (2) While pushing the lock lever with one hand, lock the spindle by turning the rubber pad slowly with the other hand. Tighten the wheel washer by using the supplied wrench. . Remove the sanding disc in the reverse order to attachment. CAUTION: Confirm that the lock lever is disengaged by pushing lock lever two or three times before switching the disc sander on. MAINTENANCE AND INSPECTION 1. Inspecting the mounting screws Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately. Failure to do so could result in serious hazard. 2. Maintenance of the motor The motor unit winding is the very “heart” of the power tool. Exercise due care to ensure the winding does not become damaged and/or wet with oil or water. 3. Inspecting the carbon brushes (Fig. 4) The motor employs carbon brushes which are consumable parts. Since an excessively worn carbon brush could result in motor trouble, replace the carbon brushes with new ones which have the same carbon brush No. shown in the figure when they become worn to or near the “wear limit”. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders. 4. Replacing carbon brushes Disassemble the brush caps with a slotted-head screwdriver. The carbon brushes can then be easily removed. 5. Service parts l...
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