Makita HR2430 Technical Information page 8

R
epair
C. Removing helical gear 31, straight bevel gear 14 and clutch cam
Take off pan head screw M4x16 ( 2 pcs.) from
crank housing complete. And then, remove gear
cover and the unit of spur gear 10 as illustrated
in Fig.6D.
Remove helical gear 31 by pressing it with
arbor press.
And then, the spare parts on spur gear 10
can be removed as illustrated in Fig.6E.
( It is recommended to use round bar for
arbor No.1R235 6mm in dia.,
when removing with arbor press.)
D. Removing crank shaft
Set crank housing complete on No.1R215: block A
for crank housing and set No.1R234:round bar for
arbor 5mm in dia. on crank shaft.
Remove crank shaft by pressing the round bar
for arbor with arbor press.
< Note > No.1R215 block A has to be set,
paying attention to the position of its
wide surface as illustrated in Fig.6F.
Narrow surface
D
100mm
1R234 Round bar for arbor
D = 5mm
Unit of
spur gear 10 Straight bevel gear 14
45mm
No.1R215 Block A
for crank housing
Spur gear 10 Spur gear 10
Clutch cam
Helical gear 31
Gear cover
Press spur gear 10
with arbor press.
Helical gear 31
Compression spring 8
Straight bevel gear 14
Flat washer 8
Clutch cam
Compression spring 12
Flat washer 12
Spur gear 10
1R234
Round bar for arbor
Crank shaft
Tool holder side
Wide surface
Narrow
surface
Crank shaft
Crank housing
complete
Pan head screw M4x16
( 2 pcs.)
Fig.6D
Fig.6E
Press with arbor press.
Straight bevel gear 12
Crank housing
complete
Inner housing
complete side
Wide surface
Fig.6F