Makita HR4010C Technical Information

P 13 /20
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -5. Active Dynamic Vibration Absorber of HR4010C and HR4011C
DISASSEMBLING
1) Remove Crank housing cover and Handle. (Fig. 38)
2) See Fig. 39.
Through the hole on the Absorber holder of Crank
housing complete, insert Phillips screwdriver into the hole
on one end of the Active dynamic vibration absorber,
and push Spring guide (inner part of the Absorber) with
the screwdriver.
The Spring guide will tilt to be locked inside the Absorber,
and this end of the Absorber is now released from Crank
housing complete.
Then do the same on the other end of the Absorber.
3) Now the Absorber can be levered off from Crank housing
complete using a slotted screwdriver (Fig. 40)
4) As illustrated in Fig. 41, Pipe holders can now be separated by turning
Pipe holders while pushing strong toward each other.
5) Now Active dynamic vibration absorber can be disassembled as illustrated
in Fig. 42.
An Active dynamic vibration absorber uses two each except for the
following parts: Pipe 16/ 1pc, Counter weight/ 1pc, O ring 8/ 4pcs.
Fig. 42
Pipe holder
O ring 8
O ring 18Rubber pin 6
Compression spring 11
Spring guide
Pipe 16 Counter weight
ASSEMBLING
Do the reverse of the disassembling steps.
Note:
Do not forget to lock the Absorber in the Absorber holder of crank housing complete. (Fig. 39)
Fig. 38
Active dynamic
vibration absorber
Handle
Crank housing cover
Fig. 39 Fig. 40
Absorber
holder
Compression spring 11
Spring guide
Absorber holder of
Crank housing complete
Phillips screwdriver Slotted screwdriver
Pipe holder
Fig. 41
Pipe holder

Makita HR4010C Specifications

General

Impact rate	2750 bpm
Rated speed (max)	480 RPM
Impact energy (max)	9.5 J
Weight (including battery)	6713 g
Carrying case	Yes
Power source	AC

Weight and Dimensions

Depth	470 mm