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MAINTENANCE AND STORAGE
NOTE: Please remove the plug before maintenance.
1. If the drill had any troubles, please send it to an authorized service center. It is
not strictly allowed to dismantle or replace the parts optionally.
2. Please check the electric brush and commutator periodically, when the
brushes are worn by the length of about 7mm, they must be changed. Use only
original ones, otherwise, the commutator may be damaged, the both brushes
must be changed at the same time. If you find heavy sparking in running or the
commutator are worn or burned seriously, please check and repair the
commutator or replace a new rotor.
3. The drill should be checked and repaired periodically after used for a long time.
Its main items are: whether the electrical wire is good or not, the grounding is
reliable or not, the inner wire, switch and plug works well or not, the insulating
resistance of motor is safe or not, the stator and rotor are in short circuit or not, the
bolts are loosened or not, please replace the lubricating oil and wearing parts etc.
4. Replace the rubber sealing washer in time. After using for a long time, if you
find the water is coming in the top of the drill, please check and replace the
sealing washer immediately. The gear in the gear case can use lubricating oil, if
you find some lubricating oil penetrate the mid-cover air port, please replace the
rubber sealing sealing oil ring on the rotor spindle. The brand of special lubricating
oil is 110# industrial gear oil. It is not allowed to use common engine oil.
5. Keep the drill clean and dry If not in use, please clean the drill and it should be
kept in dry, clean place, dismantle the drill bit, the main shaft of the drill and the
connecting parts of drill thread should be smeared some grease so as to protect
them.
6. Adjust safety clutch when you find the friction of clutch become too small.
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