Makita HM0871C Technical Information page 7

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-4 Piston, Striker, Cylinder
DISASSEMBLING
(1) Disassemble Chuck section as illustrated in Figs 2, 3 and 4.
(2) Remove Housing cover as illustrated in Fig. 9. In case of HM0871C, disassemble Active dynamic vibration absorber as
illustrated Figs. 9 and 10.
(3) Striker and Piston can be disassembled as illustrated in Figs. 15 and 16.
Note: It is not necessay to remove Tool holder from Barrel.
Fig. 15
Remove Barrel from Crank housing
Note: Do not lose Flat washer 34 between
Crank housing and Barrel.
Flat washer 34
Barrel
Fig. 16
M4x18 Pan
head screw (4pcs.)
Air pipe
Crank housing
M6x25 Hex socket
head bolt (4pcs.)
Remove Crank cap, Seal ring, Air pipe
and Flat washer 34 from Crank housing.
Crank cap
Seal ring
Turning Crank shaft,
set Piston to the closest
position to Barrel side.
Piston
Barrel
side
Separate Striker from Barrel, and then
remove O ring 24 from Striker.
Barrel
And remove Piston together
with Connecting rod.
Piston
Crank shaft
O rings on Piston can be
replaced .
P 7/ 17
Striker
O ring 24
Striker
Connecting rod
Crank
shaft
O ring 24
Pin 8
Piston
O ring 26
Connecting rod