Makita HM1213C Technical Information page 12

R
epair
[3] ASSEMBLY/ DISASSEMBLY
[3]-4. Crank section
ASSEMBLING
(2) Assemble Crank shaft section to Crank housing as illustrated in Figs. 26 and 27.
Fig. 26
Insert Piston into Cylinder 40. And assemble the Cylinder to Crank housing.
Cylinder 40
Piston
Fig. 27
Move Connecting rod of piston to dead center point on
Handle assembling side.
And then, aligning Piston pin to the hole of
Connecting rod, tap Helical gear 57 with Plastic hammer.
Crank shaft with
Helical gear 57
Connecting
rod of Piston
(3) By taking the disassembling step in reverse, assemble the components.
[3]-5. Armature
DISASSEMBLING
(1) Separate Motor housing from Crank section. (Fig. 19 and 20)
(2) Separate Gear housing complete from Crank section. (Fig. 21)
(3) Armature can be disassembled as illustrated in Fig. 28.
Fig. 28
1R045 1R346
Cylinder 40
Armature
Gear housing
complete
Crank
Housing
Crank shaft is assembled to Crank housing that
is connected with Connecting rod of Piston.
Do not forget to assemble Flat washer 12 to
Crank shaft.
1R269
Armature
Ball bearing
6000DDW
P 12/ 17
Flat washer 12
Insulation
washer