![background image](http://html1.mh-extra.com/html/makita/hm1304/hm1304_technical-information_4164860008.webp)
R
epair
P 8 / 12
< 8 > Assembling barrel section to crank housing
(1) Mount cylinder liner into barrel with arbor press. See Fig.24. And mount the parts to barrel as illustrated in Fig. 25.
(2) Mount tool holder and insert piston with connecting rod into barrel as illustrated in Fig 26.
Urethane ring 48
Rubber ring 52
Seal holder
Tool guide
Idler
Flat washer 48
1R032
Bearing setting plate
Cylinder liner
Barrel
Tool holder
Barrel
O ring 44
O ring 47
O ring 44
Make sure that O ring 44, and
O ring 47 (for holding pin 12) have
been previously mounted to piston.
Make sure that O ring 67 has
been previously mounted to
crank housing.
Piston
Connecting rod
Needle bearing 1715
Flat washer 6
Hex socket
head bolt M6x18
Make sure that these pins 6. have been
previously mounted to the illustrated
positions respectively.
Hex socket
head bolts M10x40
(4 pcs.)
O ring 67
(3) Mount barrel as illustrated in Fig. 27.
Jointing connecting rod with crank shaft which
functions also as a shaft of helical gear 57,
mount gear housing section to crank housing.
Mount needle bearing 1715 and flat washer 6,
and fasten them with hex socket head bolt M6x18
for securing the joint of connecting rod and crank shaft.
See Fig. 28.
Crank shaft
Helical gear 57
Crank housing
Connecting rod
Connecting rod
Fig. 24
Fig. 25
Fig. 26
Fig. 27
Fig. 28
Hex socket
head bolts M8x30
Tool holder