Makita HR2430 Technical Information page 12

R
epair
<8> Assembling crank section
1) Assemble the following parts to crank shaft with
No.1R216 Block B for crank housing. See Fig.15.
* Ball bearing 689ZZ
* Flat washer 9
* Ball bearing 699ZZ
2) Assemble the above crank shaft to crank housing. See Fig.15.
3) Assemble the following parts to crank shaft
which has been assembled to crank housing. See Fig.15A.
* Thrust needle bearing 1224
( Apply MAKITA grease No.2 as illustrated in Fig.15A)
* Straight bevel gear 12
Ball bearing 689ZZ
Flat washer 9
Ball bearing 699ZZ
No.1R216: Block B for Crank Housing
<9> Assembling impact bolt
1) Insert impact bolt into tool holder with screwdriver
as illustrated in Fig.16A. When inserting it, the
short head side of impact bolt has to be faced
to the bit side.
Bit side
2) Assemble O ring 11 into the groove of tool holder
with finger as illustrated in Fig.16B.
3) Assemble steel ball 5.6 to the hole of tool holder
with finger as illustrated in Fig.16C.
And then, apply grease to steel ball 5.6 and
the hole of tool holder for easy assembling
tool holder to the machine without losing
steel ball 5.6.
Crank housing
Apply here
MAKITA grease No.2.
Crank shaft
Fig. 15
Bit side
Press with arbor press.
Fig. 15A
Crank housing
side
Impact bolt
O ring 11
Impact bolt
O ring 11
Impact bolt
Straight bevel gear 12
Thrust needle
bearing 1224
Crank housing
Fig. 16A
Fig. 16B
Steel ball 5.6
Fig. 16C
Steel ball 5.6