Makita EK7651H ユーザーズマニュアル

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(1) Remove Cutting device. Refer to the clause of [4]-1. 

(2) Loosen three M5x12 Hexalobular socket head bolts, then remove 

      Clutch cover together with Starter assembly. (Fig. 16)

(3) Loosen three M5x16 Hexalobular socket head bolts with 1R290 

      and Cordless impact driver, and remove Ratchet complete. (Fig. 17)

(4) Remove M10-17 Hex lock nut by turning it counterclockwise by 

      using Cordless impact driver with Socket bit.

(5) Turn the hexagonal portion of Clutch holder clockwise by using 

      Cordless impact driver with Socket bit.

      Clutch complete is removed.

Note: Clutch holder has a left hand thread.

(6) Remove Clutch drum assembly by hand. No tools are required. 

      Remove Retaining ring R-35 from Clutch drum with 1R005.

      Press down Ball bearing 6003LLU in Clutch drum.

(1) Put Spacer 17 and Clutch drum assembly to Crankshaft, then put 

      the other Spacer 17 on Clutch drum assembly. (Fig. 20)

(2) Remove Spark plug and assemble 1R372 carefully to Cylinder 

      block by hand to prevents Crankshaft from being rotated. (Fig. 21)

(3) Turn Flywheel slowly and carefully by hand until the top of 

      1R372 contacts Piston. 

      Note: Do not damage Piston.

(4) Turn the hexagonal portion of Clutch holder counterclockwise 

      with 1R223, 1R224 and 17mm flat width Socket in order to 

      tighten Clutch complete to the fastening torque 38N.m. (Fig. 20)

      Note: • Do not use Cordless impact driver.

                • Do not turn the hexagonal portion with 1R372 taken 

                   apart from Piston.

(5) Assemble M10-17 Hex lock nut to Crankshaft by reversing 

      the disassembling procedure shown in Fig. 18.

(6) Set Ratchet complete and three M5x16 Hexalobular socket head 

      bolts in place by reversing the disassembling procedure shown in 

      Fig. 17.

(7) Assemble the rest in accordance with the clause of [4]-1.

DISASSEMBLING

ASSEMBLING

U-shaped notch

of Reel

Clutch cover

Starter 

assembly

M10-17 

Hex lock 

nut

17mm flats width 

Socket bit

M5x12 Hexalobular socket 

head bolt (3 pcs.)

M5x16 Hexalobular 

socket head bolt (3 pcs.)

Ratchet complete

Hexagonal 

portion (M16-24) 

of Clutch holder

24mm flats width 

Socket bit

24mm flats width Socket

(Square drive: 12.7mm)

Crankshaft

Cylinder block

Piston

Spacer 17

1R372

1R224 1R223

Spacer 17

Clutch drum

assembly

Clutch complete