Makita EH7500S ユーザーズマニュアル

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R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -12. Engine Block
DISASSEMBLING
Fig. 46
(1) Disassemble the following parts from Engine.
          * Blower housing         * Muffler cover (out side)          * Muffler            * Cylinder cover
          * Plug cap                     * Spark plug                              * Ignition coil     * Carburetor
          * Clutch                        * Fly wheel
(2) Remove Fuel tank while paying attention not to lose Spacer which is fixed in between the Tank and Engine.
(3) Remove Insulator with Insulator gasket from Cylinder.
(4) Separate Cylinder from Crankcase assembly and remove Piston. (
Fig. 45
)
1. Remove Piston clips from the both
    side of Piston with the awl.
    Note: Do not  reuse the removed 
              Piston clip. 
2. Remove Piston pin by pushing it 
    with 1R171.
    Now, Piston can be removed
    from Crankshaft.
Fig. 45
ASSEMBLING
Cavity
(1) Before assembling Piston, apply one or two drops 2 stroke engine oil to Needle bearing on Crank shaft.
(2) Assemble Piston to Crank shaft. (Fig. 46)
Assemble Piston at the direction described below.
Cylinder
Crankcase
assembly 
Cylinder gasket
Awl
Piston clip
Piston clip
Crankshaft
Piston
Fly wheel
side
Piston
Piston pin
Piston pin
1R171
Fly wheel
side
Left
Right
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