Operation; Maintenance; Optional Accessories - Makita HR4501C Bedienungsanleitung

Fig.14
If the bit cannot be pushed in, remove the bit. Pull the
chuck cover down a couple of times. Then insert the bit
again. Turn the bit and push it in until it engages.
After installing, always make sure that the bit is securely
held in place by trying to pull it out.
To remove the bit, pull the chuck cover down all the way
and pull the bit out.
Fig.15
Bit angle (when chipping, scaling or
demolishing)
Fig.16
Fig.17
The bit can be secured at 12 different angles. To
change the bit angle, depress the lock button and rotate
the change lever so that the pointer points to
the symbol. Turn the bit to the desired angle.
Depress the lock button and rotate the change lever so
that the pointer points to the
that the bit is securely held in place by turning it slightly.
Fig.18
Fig.19
Depth gauge
Fig.20
The depth gauge is convenient for drilling holes of
uniform depth. Loosen the clamp screw and adjust the
depth gauge to the desired depth. After adjusting,
tighten the clamp screw firmly.
NOTE:
The depth gauge cannot be used at the position
•
where the depth gauge strikes against the gear
housing/motor housing.

OPERATION

Hammer drilling operation
Fig.21
Set the change lever to the
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.
CAUTION:
When the bit begins to break through concrete or if
•
the bit strikes reinforcing rods embedded in concrete,
the tool may react dangerously. Maintain good
balance and safe footing while holding the tool firmly
with both hands to prevent dangerous reaction.
symbol. Then make sure
symbol.
Blow-out bulb (optional accessory)
Fig.22
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Chipping/Scaling/Demolition
Fig.23
Set the change lever to the
Hold the tool firmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool will
not bounce around, uncontrolled. Pressing very hard on
the tool will not increase the efficiency.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
•
unplugged before attempting to perform inspection
or maintenance.
Never use gasoline, benzine, thinner, alcohol or
•
the like. Discoloration, deformation or cracks may
result.
CAUTION:
This servicing should be performed by Makita
•
Authorized Service Centers only.
This tool requires no hourly or daily lubrication because
it has a grease-packed lubrication system. It should be
lubricated every time the carbon brushes are replaced.
Send the complete tool to Makita Authorized Service
Center for this lubrication service.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers,
always using Makita replacement parts.

OPTIONAL ACCESSORIES

CAUTION:
These accessories
•
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons.
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
SDS-Max Carbide-tipped bits
•
SDS-Max bull point
•
SDS-MAX cold chisel
•
SDS-MAX scaling chisel
•
SDS-MAX tile chisel
•
SDS-MAX clay spade
•
Hammer grease
•
Bit grease
•
Side handle
•
Side grip
•
8
symbol.
or attachments
Only use accessory or
are