Hand electric drill due to ventilation, cooling the long-term use of internal dust, dust can make the lubricating oil on the gear and bearing (sliding sleeve) mixed with metamorphic blot aggravate wear, especially the alternative use. In order to guarantee the rotating precision of the electric drill, reduce because bearing (sliding sleeve) wear and produce too much clearance, so need to clean the fatliquoring and internal lubrication, for hand electric drill is their own.
methods
Loosen the drill outside a few self-tapping nails or screws.
Flat half shell open, see what's inside the.
The structure of the normal hand electric drill is half embedded type, namely all machines, electric element device within the half shell.
Be careful to remove the carbon brush
To take drill chuck this end
To remove the rotor lift motor (don't touch the enameled wire)
Clear on rotor commutator (that is in contact with the carbon brush), if it is too dirty or wear much can use emery cloth first grinding water sand paper or metallographic sandpaper to light again
Before and after the rotor in the bearing is sealed if can wipe clean can outside, shall promptly replace if seal is broken. In front of the rotor helical gear shaft wipe clean
Inside the shell of smeary clean wipe clean
The drill chuck lever on both ends of helical gear and bearing (or bush) the wipe clean
Put off the east back, first rotor; Reload drill chuck rod helical gear; With carbon brush and carbon brush if shorter than 7-8 mm to timely change new. Carbon brush to flatten packed
Finally find out your "mobil" or the "shell" grease on the gear and bearing (or collar)
After checked all parts to be installed flat can cover the other half, to tighten the screws, turn the feeling by hand without binding, can electrify tries to turn.
It is strictly prohibited in the charged state remove hand electric drill!
No electronic basic knowledge is never begin!
The life of the drill is refers to the durability of a drill. If a drill durability is 0, that electric drill can no longer in use. Electric drill every use, durability is reduced. But, if not familiar with drill, dig, more than the area 2, electric drill durability will lose 2 times. Also note, if their own electric drill attributes and attribute does not conform to, so, durability will decrease more.
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