Makita HR4000C Manual

HR4000C
SPECIFICATIONS
Voltage(V)
No load speed Blows per minute
Bit-type
Drilling capacities
Net weight
Cord length
Tungsten-carbitde
tipped bit
Current(A) Cycle(Hz) Continuous Rating(W) Max.Output(W)
Input Output
STANDARD EQUIPMENT
OPTINAL ACCESSORIES
FEATURES AND BENEFITS
40mm Rotary Hammer
Model HR4000C accept SDS-max shank bit and overcomes competitors'
models.
Its brief benefits are;
*Less operator's fatigue than HILTI TE55
less vibration and reaction toward hands
better feeling at drilling and hammering
More efficiency than HILTI TE55
Drilling :10%up
Hammering:20%up
*Electronical speed control features
.Variable speed control
.Soft start
.Steady speed
100
120
220
230
240
11.0
9.6
5.0
4.8
4.6
50/60
50/60
50/60
50/60
50/60
1050
1050
1050
1050
1050
330
330
330
330
330
850
850
850
850
850
230 450rpm
1250 2500bpm
SDS-max shank bit
Diameter of shank : 180 mm(11/16'')
T.C.T. bit:40mm(1-9/16")
105 mm(4-1/8")
Depth Gauge--------------------------------1pc.
Grease Vessel(Bit Grease)----------------1pc.
Plastic Carrying Case ---------------------1pc.
Grip 36 Ass'y-------------------------------1pc.
Side Handle Ass'y--------------------------1pc.
Tungsten-carbite tipped bit
Bit diameter : 10mm(3/8"),10.5mm(7/16"),11mm(7/16"),12mm(1/2"),12.5mm(1/2"),12.7mm(1/2"),
13.5mm(1/2"),14.3mm(9/16"),14.5mm(9/16"),16mm(5/8"),17mm(11/16"),17.5mm(11/16"),
18mm(11/16"),19mm(3/4"),20mm(13/16"),21.5mm(7/8"),22mm(7/8"),25mm(1"),
28mm(1-1/8"),32mm(1-1/4"),35mm(1-3/8"),38mm(1-1/2")
1. Double insulated
2. See the sheets attached for more information.
Revolutions per minute
The standard equipment for the tools shown may differ from country to country.
Bull Point, Cold Chisel, Tile Chisel
Scaling Chisel, Clay Spade
Core Bit adapter, Grase Vessel(Hammer greese)
Models No.
Description
CONCEPTION AND MAIN APPLICATIONS
New Tool
TECHNICAL INFORMATION
455
(17-7/8")
100 (3-15/16")
253(10")
5m(16.4ft)
6.2Kg(13.6lbs)
Core bit

Circuit diagram
Switch
power supply cord
P1 3
P2
Controller
Black
Black
Red
White
White
Orange color
Orange color
Brush holder
Connector
at closed end Violet
Field
Connector at closed end
Brush holder
5
2
4
Torque of fastening screw
crank cap----crabk housing 60-100kgf.cm
(4.3-7.2ft.lbs)

3)How to replace the armature
a. Lower the chuck cover and remove the tool
holder cap.(See the figure 4.)
b. Remove the pan head screw, and then remove the crank
housing cover and gear housing cover.(See the figure 4.)
f. Pull out the 3 pieces of terminals
(white, black and red).(See the figure 6.)
g. Remove the rear cover and loosen the nut
while holding the fan.(See the figure 7.)
h. Remove the fan and disconnect the 4 pieces
of hexagon-holed bolts for holding the crank
housing. (See the figure 7.)
i. Strike the rear of armature shaft to disconnect
the gear housing and armature from the motor
housing.
Tool holder cap
Chuck cover
Pan head screw
Gear housing cover
Crank housing cover
Figure 4 Figure 5
Controller
Black
Handle
Connector White
Hexagon-holed bolt :
6-piece
Hexagon-holed bolt
Crank housing
Motor housing
Controller
Gear housing
Fan
Lead wire
Fix rod
Screw
Pick-up coil
Hexagon nut
Rear cover Figure 7
j. To assemble the armature, insert it after the ball bearing
6201 and the oil seal 14 are pressed into the gear housing.
(See the figure 9.)
Ball bearing 6201 Gear housing
Oil seal 14 Apply the grease
Buckle plate Armature
Figure 8
Controller
Black
White Red Figure 6
c. Remove the hexagon-holed bolt and then remove the
handle.(See the figure 5.)
d. Remove the connector white and black.
(See the figure 5.)
e. Remove the screws for holding the fix rod, and then pull
out the fix rod and the pick up coil.
Note) Pulling out the lead wire of the pick up coil without
removing the fix rod may cause the short-circuit.
(See the figure 7.)

4)Disassembling the chuck(See the figure 9.)
a. As mentioned in 3)-a How to replace the armature, removethe tool holder cap, the chuck cover and
the crank housing cover.
b. Remove the ring spring 25.
c. Remove the reaf spring 25 for the step pin 8 .
d. Remove the step pin 8 from the tool hplder and chuck ring .
Ring spring 25
Circle clip(shaft) WR-45
Tool holder
Leaf spring
Step pin 8
Cup washer 45 Chuck ring
Use care in direction.
Dent portion
Figure 9
Figure 10 Figure 11
6)Disassembling the tool holder and crank housing
a. Insert the minus driver into the dent portion on the external place of the seal case and slightly strike
it to remove the seal case.(See the figure 10.)
b. Disconnect the circle clip(hole) R-56 and then pull out the tool holder.
Tool holder
Seal case Circle clip(hole) R-56
Tool holder
5) Assembling the chuck
Set up the leaf spring and step pin 8 cerfimly.(See the figure 9.)
7)How to take out the cylinder 28.5
a. The cylinder 28.5 is slightly pressed into the crank housing.
To disconnect the cylinder 28.5,
slightly hit the crank housing against the firm
table several times in a straight line to disconnect it.
(See the figure 12.)
firm table
Figure 12

8)Assembling the piston rod and crank shaft(See the figure 13.)
a. Set the 2 pieces of O ring 30 on the cylinder 28.5, and insert them into the crank housing.
b. Insert the piston until the rod hole is placed inside the crank room.
c. Insert the crank shaft while approaching the crank shaft to the rod hole.
Figure 13
Cylinder 28.5
O ring 30 Rod hole
Piston
Crank room
Flat washer 42
Crank shaft
Figure 14
9)Assembling the fluorocarbon ring 25 on the impact bolt
a. If the fluorocarbon resin ring is assembled on the impact bolt, the fluorocarbon resin ring will
be extended and protruded over the groove.
b. Keep about 10 sec. after inserting the repairing tool (Taper sleeve), and then modify it.
c. When inserting the impact bolt into the tool holder , use care not to tear off the fluorocarbon resin ring.
Groove on the
impact bolt
Fluorocarbon resin ring 25
O ring
Edge face protruded
Taper sleeve After modification
Crank housing
Sleeve
O ring 22

10)Assembling the tool holder
a. Set the parts described below into the crank housing.(See the figure 15.)
b. To set the straight bevel gear 33, use the tool holder for smooth setting.(See the figure 16.)
Figure 15
Rubber ring 17
sleeve 16 Slide sleeve Compression
spring 37 Striker
O ring 22
Straight bevel
gear 33
Crank housing
Ring 33
Figure 18
Figure 19
Figure 16
Tool holder Straight bevel gear 41
d. Inserting the tool holder
Assemble so that the cam at tool holder may properly engage with the cam
at straight bevel gear 33.(See the figure 19.)
Turn the straight bevel gear 33 so that the 12 dent portions on the cam may
be fit with 6 grooves on the crank housing.(See the figure 18.)
Fit the cam(on the lock sleeve B) to the cam(on the tool holder).
(See the figure 19.)
Fit the plain portion of the lock sleeve A to the mountingside of the change
lever, fit the 6 protruded portions on lock sleeve B tothe 6 grooves on the
crank housing, and then insert the tool holder into the crank housing.
(See the figure 18. 19)
12 dent portions
on the cam of the
sTRAIGHT bevel gear
6 grooves on the
crank housing
Mounting side
of the change
lever
Tool holder
6 protruded portions
on the lock sleeve B
Cam on the lock sleeve A
Cam on the tool holder
Cam on the straight
bevel gear 41
Plain portion of lock sleeve A
c.Push the tool holder after ball bearing 6907 pushing into bearing holder.(See the figure 17.)

11)Assembling the torque limiter
a. Assemble the ball bearing 1207, flat washer 12(Outer dia. 24 mm)
and torque limiter complete into the spiral bevel gear 10. (See the figure 20.)
Note ) Use care not to miss the pin 4 for preventing
the round nut from turning.
Figure 20
Groove of the change key
Change
key
Flat washer 12
(Outer dia. 28 mm)
Circle clip(shaft)
S-12
Flat washer 12
(Outer dia. 24 mm)
Groove of Circle clip
Torque
limiter
complete
Round nut
Pin 4
Ball bearing 1207
Straight bevel gear 12
Flat washer 12
(Outer dia. 24 mm)
Figure 21
b. Insert the flat washer 12(Outer dia. 24 mm)
and the circle clip(shaft) S-12 while setting the
two pieces of change keys into the key groove of
the straight bevel gear 12, and then insert the flat
washer 12(Outer dia. 28 mm) into the groove of the
change key.(See the figure 20.)
Figure 22
Change link
Slide plate
Compression spring 3
Guide pin 2
Groove of the change link
Ball bearing 608
Gear housing
Flat washer 12
(Outer dia. 28 mm)
d. Assemble the slide plate, compression spring 3 and
guide pin 2 into the change link.(See the figure 22.)
e. Insert the flat washer 12(Outer dia. 28 mm) into
the groove of the change link and then assemble
them on the ball bearing 608.(See the figure 22.)
c. Slide downward the two pieces of change keys and
then insert the circle clip(shaft) S-12 into the groove
of the circle clip. (See the figures 20 and 21.)
Make sure that the circle clip has been securely inserted
in the groove.
Note ) Use care not to over-widen the circle clip(shaft) S-12.

(Page 13 of 14)
15)Applying positions for grease
To prevent abrasion and overheating at earlier stage, please apply the
MAKITA grease R No.00 at the positions shown below.
a. O ring of striker
b. Inner portion of ring 45
c. Inner portion of slide sleeve
d. Outer portion and gear of spiral bevel gear
Gear
Inner portion of
slide sleeve Inner portion of
ring 45 Striker
O ring Outer portion
Spiral bevel
gear 41
e. O ring of piston and rod hole
Rod hole
O ring
f. Outer circumference of the impact bolt
Outer circumference
of the impact bolt
g. Between the spiral bevel gear 12 and the torque limiter complete
Between straight
bevel gear 12 and
torque limiter complete
h. Lip at Oil seal 14 and oil seal 48
Lip
i. Needle bearing(Gear housing, Helical gear 20 complete)
Helical gear 20 complete
j. Each gear teeth
Needle bearing Gear housing Needle bearing

Circuit diagram
Switch
Cab tire cord
P1 3
P2
Controller
Black
Black
Red
White
White
Orange color
Orange color
Brush holder
Connector
at closed end Violet
Field
Connector at closed end
Brush holder
5
2
4