Makita HR4501C Technical Information page 10

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -4. Active Dynamic Vibration Absorber (HR4510C and HR4511C only)
DISASSEMBLY
1) Disassemble Chuck section. (Figs. 4 to 11) and remove Barrel cover complete and Barrel section. (Figs. 13 and 14)
2) Disassemble Active dynamic vibration absorber in the order of Figs. 27 to 30.
Fig. 27
Crank housing cover
Change lever
Remove Crank housing
cover. Then set Change
lever to Rotation with
hammering mode.
Fig. 28
Disassemble Active dynamic vibration absorber as follows.
Compression
Absorber holder of
spring 11
Crank housing complete
Pipe holder
Spring guide
phillips
screwdriver
Absorber holder
Fig. 30
Pipe holders can be
separated by turning Pipe
holders while pushing
strong toward each other.
4x14 Tapping screw
Change lever
Remove the Change
lever by unscrewing
4x14 Tapping screw.
Spring guide will tilt to be
locked inside Absorber, and
Push Spring guide
this end of the Absorber is
(inner part of the
released from Crank housing
Absorber).
complete
Compression spring 11
Pipe holder
O ring 12
O ring 8
4x14 Tapping screw (2 pcs.)
Crank cap cover
Remove Crank cap cover
by unscrewing 4x14 Tapping
screw.
Then remove Control plate.
Compression spring 11
Pipe 20
O ring 22
Spring guide Counter weight
M4x18 Pan head
screw (6 pcs.)
Control
plate
Remove Crank cap together
with Crank lever by unscrewing
M4x18 Pan head screw.
Fig. 29
slotted screwdriver
Active Dynamic
Vibration Absorber
Disassemble Active dynamic
vibration absorber, by levering up
with two slotted screwdriver.
Pipe holder
O ring 12
O ring 22
Spring guide
P 10/ 23
Crank lever
Crank cap
O ring 8