Makita HR4003C User Manual

8
014135
Make sure the toothed side of the depth gauge faces
the marking.
Adjust the depth gauge by moving it back and forth
while pressing the lock button. After adjustment, release
the lock button to lock the depth gauge.
NOTE:
• The depth gauge cannot be used at the position
where the depth gauge strikes against the gear
housing/motor housing.
OPERATION
CAUTION:
• Make sure the work material is secured and not
unstable. Flown object may cause personal injury.
• Do not pull the tool out forcibly even the bit gets
stuck. Loss of control may cause injury.
Hammer drilling operation
014030
Set the change lever to the symbol.
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 you can continue drilling operation.
CAUTION:
• 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
side grip (auxiliary handle) and firmly hold the tool
by both side grip and switch handle during
operations, and maintain good balance and safe
footing. Failure to do so may result in the loss of
control of the tool and potentially severe injury.
Blow-out bulb (optional accessory)
1
002449
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Chipping/Scaling/Demolition
014031
Set the change lever to the or symbol.
Hold the tool firmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool
does 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.
1. Blow-out bulb

Makita HR4003C Specifications

General

Type	Hammer drill
Product color	Black, Green
Idle speed (max)	500 RPM
Idle speed (1st gear)	250 RPM
Impact rate (low speed)	1450 bpm
Impact rate (high speed)	2900 bpm
Drilling diameter in wood (max)	- mm
Drilling diameter in concrete (max)	40 mm
Chuck type	SDS Max
Product design	Pistol grip drill
Hammer drilling	Yes
Input power	1100 W
Cable length	5 m
Power source	AC

Weight and Dimensions

Depth	106 mm
Width	479 mm
Height	263 mm
Weight	6200 g