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[1] NECESSARY REPAIRING TOOLS

[2] DISASSEMBLY/ ASSEMBLY

[2]-1. Chain tensioner

Description

Code No.

Use for

T-type hexalobular wrench 

(1) Remove Sprocket guard, Guide bar and Saw chain from machine.

(2) Remove Guide plate from Guide bar bolts of Engine housing 
      complete carefully to prevent deformation. (

Fig. 1A

)

  

(3) If necessary, turn the slotted head of Helical gear 18 clockwise 
      until 3x10 Tapping screw is appeared. (

Fig. 2A

)

  

Note

: Tension slide can be moved back and forth by turning

          Helical gear 18.

(4) Remove 3x10 Tapping screw, and pull out Chain tensioner 
      complete. (

Fig. 3A

)

 

Assemble the components by reversing the disassembling procedure. 

Be sure to apply Makita grease N No. 2 on the engaged teeth of Helical gear 18 and Helical gear 11.  

1R186

removing/ assembling H.L. (Hexalobular) tapping screw

Round bar of copper ø20-100

1R091

removing/ assembling Hexalobular tapping screw/ socket head bolt

using with 1R223/ 1R254 when removing/ assembling Hexalobular 

tapping screw/ socket head bolt

using with 1R223/ 1R254 when removing/ assembling Hexalobular 

tapping screw/ socket head bolt

Torque wrench shaft 20-90N.m

1R223

Torque wrench shaft 2-6N.m

1R254

adjusting a proper gap between Flywheel and Ignition coil

Feeler gauge set

1R366

Hexalobular socket head bit 

VT-27 (6.35mm)

1R290

Crank shaft lock bolt M10

1R372

locking Crank shaft

Bit adapter ass’y

134873-0

Socket adapter

1R222

Ratchet head 9.5

1R220

Clutch extractor

1R396

ASSEMBLING

removing/ assembling Clutch

Tachometer for engine chain saw

1R070

Checking rpm of engine

Air density tester

1R127

Checking the sealing performance of Carburetor and Tank assembly

Ignition checker

1R181

checking ignition

Spring fixing jig

1R199

removing Tension spring 10

CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”. 

removing Flywheel

R

epair

DISASSEMBLING (EA3500S: without Toolless tension adjustment)

 Slotted head of Helical gear 18

 Tension slide

3x10 Tapping screw

 Guide plate

Guide bar bolts of 

Engine housing complete

Fig. 1A

Fig. 2A

Fig. 3A

Tension slide

3x10 Tapping screw

Gear cover professional

Helical gear 11

Helical gear 18

O ring 7

Chain tensioner

complete

Engine housing complete

Summary of Contents for EA3500S

Page 1: ...Mixed gasoline Mixture ratio of 50 1 JASO FC or ISO EGD Specifications Model Type Dry weight kg lbs Speed at no load min 1 rpm Starting system Yes Rapid start Spring assisted recoil starter Decompres...

Page 2: ...g with 1R223 1R254 when removing assembling Hexalobular tapping screw socket head bolt Torque wrench shaft 20 90N m 1R223 Torque wrench shaft 2 6N m 1R254 adjusting a proper gap between Flywheel and I...

Page 3: ...h drum assembly if chain brake works Fig 5 5 Remove Clutch drum assembly Fig 6 1 Check that the following portions of Clutch drum assembly do not have damage wear Fig 5 Inside Chain sprocket portion N...

Page 4: ...l starter section 9 Remove 4 7x16 Hexalobular tapping screw and Flat washer 5 from Starter complete installation side on Hand guard Fig 8 10 Remove Stop ring E 4 from Pin A of Engine housing complete...

Page 5: ...areful to each direction Note Wear gloves for safety Be careful that Muffler stays very hot for a while after running the engine Fig 10 Repair DISASSEMBLING 2 DISASSEMBLY ASSEMBLY 2 4 Muffler section...

Page 6: ...5 to two Clutch shoes Be careful to the hooking direction of Tension springs 5 When one of Tension spring 5 has a damage replace two Tension springs 5 with the new at the same time Do not replace the...

Page 7: ...ce turn the screw counterclockwise until the pin ends are fit into two slits of Oil pump body If this way is difficult push Piston slightly in the direction of Body Note When set Oil pump complete in...

Page 8: ...ng as follows After making the slack of rope between Starter grip and Reel put the slack into the groove of Reel and pull the starter grip lightly Note Be sure to loosen the spring force before the st...

Page 9: ...washers into two seated holes of Cylinder 2 Pretighten Ignition coil in place by tightening two M5x20 Hexalobular socket head bolts through Isolating washers 3 Insert 1R366 between Ignition coil and...

Page 10: ...ke lever 5 5x16 Hexalobular tapping screw 2 pcs Tube 2 5 112 to Fuel nipple Contact spring 3x10 Tapping screw Grounding wire of Cable harness Tube 2 5 72 removed from Carburetor Guide pin of Engine ho...

Page 11: ...ck Diaphragm assembly metering Refer to Figs 31 and 32 Check that the tip of Valve inlet needle is not worn Replace it the new one if it looks worn Check that Lever metering is not worn and it is asse...

Page 12: ...n of Tank assembly 2 Set Catch lever to the hinge position of Tank assembly Fig 36 Note Torsion spring 10 has to be hooked with Throttle lever as drawn in Fig 37 See Fig 34 and the explanation Assembl...

Page 13: ...ant Supply Soap liquid onto the suspicious surface of Fuel leakage during the pressure test After the above steps reverse the disassembling procedure of DISASSEMBLY of 2 11 Tank assembly Pick up Gasol...

Page 14: ...ide Be sure to use New Gasket Fig 11 and New Crank case sealing When replacing Ball bearing 6201 press fit the inner ring portion to Crank shaft using the same size pipe and a block for placing the co...

Page 15: ...be 0 5 mm Is the gap between Flywheel and Ignition coil 0 25 0 3 mm Is the gap even without any contact wear Is there damage to Insulation of High voltage cable or Ignition cable or coils of Igniton...

Page 16: ...onent of Muffler complete and Cooling plate 266605 8 2 M5x16 Hexalobular socket head bolt 8 1 266606 6 1 M5x40 Hexalobular socket head bolt 8 1 Carburetor 266604 0 2 M4x40 Hexalobular socket head bolt...

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