Makita HK1820 dimensions After removing O Ring 26, the following parts

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Repair

[3] DISASSEMBLY/ASSEMBLY

[3] -2. Barrel, Tool Holder, Cylinder Section

DISASSEMBLY

3)Separate Tool holder from Cylinder section as described in Fig. 7.

4)Disassemble Impact bolt and Cylinder section as described in Fig. 8.

Fig. 7

1.Pull out Striker from Cylinder section.

Cylinder section Striker

2.Remove ring 25, Urethane ring 26 and Ring spring 37 from Cylinder.

Ring 25

Ring spring 37

Urethane ring 26

3.By removing Ring 39, you can see Pin 6 (3 pcs) that join Tool holder with Cylinder.

Ring 39

Pin 6 (3 pcs)

4.By removing Pin 6, Tool holder can be separated from Cylinder section. Remove Rod 2.5 (3 pcs) from the grooves of Cylinder.

5.Push out Impact bolt section from Cylinder section using screwdriver.

Screwdriver,

Tool holder

magnetized with 1R288

 

Pin 6 (3 pcs)

Rod 2.5 (3 pcs)

Impact bolt section

Cylinder section

Note: Pin 6 can be removed as described below if it is difficult to remove.

1.Apply magnetized screwdriver to Pin 6.

Screwdriver, magnetized with 1R288 Pin 6

Tool holder

Cylinder

2.Align the through hole of Tool holder with that of Cylinder by pushing Tool holder.

3.Remove Pin 6 using magnetized screwdriver when the two holes are aligned.

Fig. 8

Disassembling Impact Bolt Section

Disassembling Cylinder Section

 

 

After removing O Ring 26, the following parts

Rubber ring 13

 

can be removed from Cylinder:

 

 

Cup washer 29, Compression Spring 32, Ring 29

 

 

Ring 29

Cup washer 29

 

 

 

Impact bolt

Flat washer 12

 

 

 

 

Cylinder

 

 

 

Compression Spring 32 O Ring 26

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Contents Standard equipment SpecificationOptional accessories Repair Necessary Repairing ToolsChuck Section DISASSEMBLY/ASSEMBLYBarrel, Tool Holder, Cylinder Section After removing O Ring 26, the following parts Electrical Parts in Handle Section AssemblyMotor Section DISASSEMBLY/ASSEMBLY Gear Crank Section Handle Handle SectionRecommended Fastening Torque of Screws and Bolts Maintenance ProgramCircuit diagram Routing Wires Through Handle Base and Handle Wiring diagram14/17 15/17 16/17 17/17