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5. Maintenance
The screwdriver's motor is equipped with carbon brushes 9 mm long. When their
length is about 5mm it is time to replace them as per the following instructions:
a.
Remove the #3, #10 and #14 screws and the #9 and #15 housings
(housing spare parts).
b.
Remove #53 brushes from their seat by delicately lifting up the #52
spring and unsolder their wire (motor assembly spare parts).
c.
Solder the wire of the new brushes, insert them into their seat and stop
them with the relevant #52 springs.
d.
Re-mount the housing.
Power supply and control unit is a maintenance free unit. Should you need any
assistance please call your nearest Kolver dealer or repair centre.
Always remember to switch off the control unit at the end of each working shift.
Using a screwdriver at the max torque rated will result in a premature wear out of
carbon brushes, clutch spring and upper clutch. Continuous use over 80% of torque
range is not recommended.
NOTE
The sound level generated by Kolver electric screwdrivers is always lower than
70dB(A).
The vibrations transmitted to operator's hand are lower than 2.5m/s². In particular
the exposition to vibrations is lower than 1m/s² for operators who make up to 4200
screwing cycles per day.
IMPORTANT: For each second of operation the motor needs 3 seconds of rest, as
indicated on the tool label (1s/3s). Failure to do so may result in motor overheating
and eventually damage and will be considered as a misuse. Our warranty will not
apply.
Vers. 080920
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