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Direction of rotation

The direction of motor rotation 

is controlled by the forward/

reverse switch (9).
1. The bit rotates in a clockwise 

direction (viewed from the 

rear) when the forward/reverse 

switch is set to the right-hand 

side of the tool. This is the 

position required for driving 

screws and other fasteners.

2. The bit rotates in an anti-

clockwise direction (viewed 

from the rear) when the 

forward/reverse switch is set to 

the left-hand side of the tool. 

This is the position required 

for removing screws and other 

fasteners.

CAUTION.

 Never change the direction of motor rotation 

while the tool is switched on. Always switch off at the 

power point before operating the forward/reverse switch 

otherwise you could damage the motor.

Lock-on button 

The lock-on button (6) can be 

used to maintain the operation 

of the tool without having to 

constantly press the trigger switch 

(7). 
1. Squeeze the trigger switch to 

set the desired speed of the 

motor.

2. While holding the trigger switch depressed, push in the 

lock-on button (6). This holds the trigger switch in the 

on position without the need to constantly hold it.

3. To release the lock-on button, press and release the 

trigger switch.

Speed selection 

The speed at which the motor turns when the trigger switch 

is fully depressed depends on the setting of the speed control 

(8).  

It is important to select the correct speed to suit the task. If 

necessary, trial the tool at different speeds to determine the 

optimum setting, start the trial at the slowest speed. 
1. Rotate the speed control in 

a clockwise direction (viewed 

from the rear) to increase the 

speed.

2. Rotate the speed control in an 

anti-clockwise direction (viewed 

from the rear) to decrease the 

speed.

Operation

When the tool is switched on and the motor is running, 

the magnetic hex shank bit holder (3) does not rotate. 

It is only when the bit or screw is pressed against the 

material being fastened that the screw bit turns.
1. Fit the bit or bit holder extension into the magnetic hex 

shank bit holder (3) and ensure that the direction of 

rotation (forward or reverse) is correct.

2. Switch on the tool. Ensure that the tool is held 

perpendicular to the head of the screw.

3. Set the correct speed.
4. Drive or unscrew the fastener by applying pressure 

to the screw head.

5. The magnetic hex shank bit holder will stop rotating 

when the pressure is released.

Belt clip 

The belt clip (4) permits the tool 

to be hung on a belt when not in 

use thus allowing the operator to 

use both hands for other tasks. 

When the tool is again required, 

it is conveniently available.

9

Summary of Contents for DSSCR

Page 1: ...DSSCR 050825 ED9 JJ Melbourne Perth Auckland Hong Kong Shanghai Taipei New York Verona London Paris INSTRUCTION MANUAL 710W Drywall Screwgun ...

Page 2: ...ctive in materials or workmanship the tool or the offending faulty component will be replaced free of charge with another of the same item A small freight charge may apply The warranty replacement unit is only made available by returning the tool to the place of purchase with a confirmed register receipt Proof of purchase is essential We reserve the right to reject any claim where the purchase can...

Page 3: ... in New Zealand Introduction Your new GMC power tool will more than satisfy your expectations It has been manufactured under stringent GMC Quality Standards to meet superior performance criteria You will find your new tool easy and safe to operate and with proper care it will give you many years of dependable service CAUTION Carefully read through this entire Instruction Manual before using your n...

Page 4: ...entangled cords increase the risk of electric shock When operating a power tool outdoors use an outdoor extension cord suitable for outdoor use Use of a cord suitable for outdoor use reduces the risk of electric shock Personal safety Stay alert watch what you are doing and use common sense when operating a power tool Do not use a power tool while you are tired or under the influence of drugs alcoh...

Page 5: ...rking conditions and the work to be performed Use of the power tool for operations different from intended could result in a hazardous situation Service Have your power tool serviced by a qualified repair personnel using only identical replacement parts This will ensure that the safety of the power tool is maintained Additional safety rules for screwguns Remove the plug from the socket before carr...

Page 6: ... 18 years operate this tool Do not touch the bit after operation It will be very hot Keep your hands away from under the workpiece Contents of carton The drywall screwdriver is supplied with the following accessories Magnetic bit holder 6 35mm 1 4 Instruction manual ...

Page 7: ...ose piece 2 Depth adjustment collar 3 Magnetic hex shank bit holder 4 Hex nut 5 Belt clip 6 Lock on button 7 Variable speed trigger switch 8 Speed control 9 Forward reverse switch 10 Bit holder extension 7 6 4 8 5 9 2 1 10 3 ...

Page 8: ...ent collar backwards the rear of the tool until it touches the large hex nut 4 on the front of the tool housing NOTE It may be necessary to drive a number of screws into a test piece of material to establish the ideal driving depth adjustment Fitting a 1 4 shank bit 1 4 Shank bits and bit holder extensions such as the one supplied as an accessory can be fitted into the magnetic hex shank bit holde...

Page 9: ...h Speed selection The speed at which the motor turns when the trigger switch is fully depressed depends on the setting of the speed control 8 It is important to select the correct speed to suit the task If necessary trial the tool at different speeds to determine the optimum setting start the trial at the slowest speed 1 Rotate the speed control in a clockwise direction viewed from the rear to inc...

Page 10: ...tor or abnormal wear on the carbon brushes 4 Take special care to keep the ventilation inlets outlets free from obstruction cleaning with a soft brush followed by a compressed air jet will usually be sufficient to ensure acceptable internal cleanliness 5 Wear eye protection when carrying out cleaning CAUTION Do not use cleaning agents to clean the plastic parts of the drill Power cord maintenance ...

Page 11: ...11 ...

Page 12: ...ce to make suggestions or give comments about any GMC product With continuing product development changes may have occurred which render the product received slightly different to that shown in this instruction manual The manufacturer reserves the right to change specifications without notice Note Specifications may differ from country to country The GMC 777 Helpline operates from 7am to 7pm 7 day...

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