OPERATION INSTRUCTIONS
Inserting And Changing Bits
Clean and lightly oil the selected bit before inserting. Pull back the locking sleeve and slide bit into hammer drill. Twist bit with slight inward pressure until it moves further into the hammer drill. Release locking sleeve and make sure that bit is secured in place and will not come out by hand. For removal, pull back locking sleeve and slide bit straight out of hammer drill.
Operation
1.The hammer drill can be started and stopped by simply pressing and releasing the trigger switch.
2.For safety reasons, you should always use the auxiliary handle during use. If the hammer drill locks up, the auxiliary handle will help you maintain control and decrease your chances of injury. To adjust the auxiliary handle, twist it counterclock- wise until it is loose enough to position where you need it, then twist clockwise to tighten.
3.Setting the depth gauge rod can be done by loosening the auxiliary handle and inserting the rod into the hole on the auxil- iary handle near the body of the hammer drill. Tighten handle when your desired length is achieved.
4.The dust protection cap can be fitted on the bottom end of the bits before you insert them into the hammer drill. This will help prevent to a large extent the entry of drilling dust. The hollow side of the dust- cap should face body of the hammer drill.
5.It is important that you don’t apply too much pressure to the hammer drill during operation. Excessive force puts unneces- sary stress on the motor and increases likelyhood of getting hurt. If speed drops suddenly during use, decrease pressure immediately.
G9908 3 Function Hammer Drill
Mode Selector Switch
You can achieve the three functions of the hammer drill by selecting the various com- binations of front and back switches. Refer to Figure 2 for more details.
Drill Mode |
Hammer Drill Mode |
Power Chisel Mode |
Fig 2. Functions of Hammer Drill |
Maintenance |
It is important that you always keep the device and ventilation slots clean. Aside from lubricating bits before insertion, all other repairs or maintenance to the inter- nal parts of the tool should be done by a qualified service technician.
Disassembly and improper reassem- bly of this device can result in electri- cal shock danger. Always have this device serviced by a qualified electri- cal repair technician. Serious injury will result.