English
MAINTENANCE AND INSPECTION
WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and inspection.
1.Inspecting the drill bits
Since use of a dull tool will cause motor malfunctioning and degraded efficiency, replace the drill bit with a new one or resharpening without delay when abrasion is noted.
2.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.
WARNING: Using this rotary hammer with loosen screws is extremely dangerous.
3.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.
4.Regarding indication lamp (red) for carbon brush replacement (Fig.20)
When the time for carbon brush replacement nears, an indication lamp will light up in red as you turn the switch on. When the indication lamp lights up, replace both carbon brushes with new ones as early as you can.
The indication lamp will light up approximately 10 hours before the service life of the carbon brushes ends.
Brush Cap Cover | Indication Lamp | ||
(Red) for Carbon | |||
| |||
| Brush | Replacement | |
Tapping | Brush Cap | |
Screw | ||
| ||
| Fig. 20 |
5.Inspecting the carbon brushes: (Fig. 21)
The motor employs carbon brushes which are consumable parts. When they become worn to or near “wear limit”, it could result in motor trouble. When an
In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.
CAUTION: Using this rotary hammer with a carbon brush which is worn in excess of the wear limit will damage the motor.
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