ROTARY HAMMER
Dust cup
Use the dust cup to prevent dust from falling over the tool and on yourself when performing
overhead drilling operations.
Grease feeding
Caution: Prior to grease feeding, always disconnect the plug from the power supply receptacle.
Since a grease chamber is built in this Rotary Hammer, it can be used for approximately 30 days
without supplying lubricating grease, assuming that the hammer is used continuously 2 hours
daily. Feeding grease into the grease tank as described below before using this hammer.
1.
Just before no grease is visible in the grease tank window, when the device is held upright
feed grease to warm it up.
2.
Before feeding grease, use the wrench to remove the grease cover. Be careful not to lose
the rubber packing attached below the grease cover.
3.
Check the grease level weekly, confirming that grease is filled.
4.
After feeding grease, securely clamp the grease cover.
OPERATION
Hammer drilling operation
First set the mode selector switch
4
and the mode selector switch
5
to the position shown in the
figure 3
.
Position the bit at the desired location for the hole, then pull the switch trigger. Do not force the
tool. Light pressure gives best results. Keep the tool in position and prevent it from slipping away
from the hole.
Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run
the tool at an idle, then remove the bit partially from the hole. By repeating this several times,
the hole will be cleaned out and normal drilling may be resumed.
WARNING:
•
There is a tremendous and sudden twisting force exerted on the tool/bit at the time of
hole break-through, when the hole becomes clogged with chips and particles, or when
striking reinforcing rods embedded in the concrete. Always use the auxiliary handle and
firmly hold the tool by both auxiliary handle and switch handle during operations. Failure
to do so may result in the loss of control of the tool and potentially severe injury.
Dust cup
Fig. 9
