P 9/ 20

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-4. Bearing box section, Piston, Crank section

DISASSEMBLING

(1)Remove Handle section and Controller cover to hold the machine upright. (Fig. 2)

(2)Separate Barrel section from Crank housing complete (the left illustration in Fig. 6)

(3)Disassemble Cylinder section (Fig. 7)

(4)For repairing Piston & Crank section, Motor section has to be separated from Crank housing complete. Separate Motor housing from Crank housing complete in order of Figs. 17 and 18.

Fig. 17

Disassemble Gear cover, and then, remove Flat washer 14 and Gear complete 34-48.

M6x30 Hex socket

head bolt (6pcs.)

Gear cover

Flat washer 14

Gear

complete 34-48

Piston

And then, remove two Needle

Disassemble Rear cover.

gauges and Flat washer 14.

So, Motor housing comes

 

Needle gauge

into your sight.

Helical gear 52

 

1412 (2pcs.)

 

 

 

 

Flat washer 14

 

Motor housing

Rear cover

M6x30 Hex socket head bolt (6pcs.)

Turn Helical gear 52 until Piston comes out from Crank housing complete.

O rings on Piston can be replaced in this step.

Fig. 18

Disconnection of the Contact of Carbon brush with Commutator

Carbon brush is pressed with Spiral spring to maintain its contact with Armature's commutator.

Detach Spiral spring from Carbon brush.

By pulling Carbon brush, disconnect the contact with Armature's commutator.

Spiral spring Carbon brush

Carbon brush

Spiral spring

Carbon brush

Remove Motor housing by levering it up with 2 pcs. of 1R263 as illustrated below.

1R263

Page 9
Image 9
Makita HM1214C Bearing box section, Piston, Crank section, Disconnection of the Contact of Carbon brush with Commutator