Makita HR4511C User Manual download pdf (Page 18)

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[3] DISASSEMBLY/ASSEMBLY

[3] -9. Gear Section

Repair

ASSEMBLY

Do the reverse step of Disassembly illustrated in Figs. 56 and 57. Refer to Fig. 58 when assembling Gear section.

Helical gear 36

Spur gear 19

Key 5

Crank shaft

Protrusion

Face the protrusion side of Helical gear

36 to Gear housing installation side

when assembling Helical gear 36.

Otherwise, Helical gear 36 interferes

with Torque limiter's Rotation.

Gear Housing

Installation Side

Torque limiter

Fig. 58

Fig. 56

Fig. 57

After removing Helical gear 36,

Torque limiter assembly can be

removed.

Remove Spur gear 19 and

Key 5 from Crank shaft.

After removing

Flat washer 10,

disassemble

Retaining ring

S-14.

Retaining

Ring S-14

Retaining

ring S-17

Remove Crank shaft by carefully

striking the specific position of Crank

housing complete as illustrated right

while keeping Connecting rod in right

angle to the removing direction of

Crank shaft.

Otherwise, Connecting rod

may be broken.

Ball bearing

6303LLU

Flat washer 10

Flat washer 10 is left in Gear housing

complete in the step of Fig. 55.

1R291 Helical gear 36

Spur gear 19

Key 5 (2pcs.)

Torque limiter

assembly

DISASSEMBLY

Crank shaft

Connecting

rod

1) Disassemble the following parts from Crank housing complete.

* Chuck section (Figs. 4 to 11) * Barrel section (Figs. 13 and 14) * Handle section and Controller (Figs. 46 to 48)

* Motor section (Figs. 50 to 55)

After removing the above parts, Gears and Crank shaft are left in Crank housing complete.

2) Disassemble Gears and Crank shaft from Crank housing complete as illustrated in Figs. 56 and 57.

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Makita HR4511C User Manual Page 18

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