Makita EX2650LH specifications Carburetor, Cleaning / Maintenance

Page 10
Normal
Out of order
Dust in Pump body causes the leakage of pressure.
Out of order

P 10/ 14

Repair

[4]DISASSEMBLY/ASSEMBLY

[4]-10. Carburetor

DISASSEMBLING

(1)Remove Cleaner cover assembly by unscrewing M4 Thumb screw. (Fig. 47)

(2)Remove two Air cleaner elements. (Fig. 48)

(3)Remove two M5x60 Hex. socket head bolts for fastening Carburetor and Cleaner plate assembly to Insulator. (Fig. 48) Note: Carburetor can not be removed without removing the bolts completely.

(4)Disconnect two tubes from Carburetor, then remove Carburetor.

Fig. 47

Fig. 48

M4 Thumb screw

Cleaner cover assembly

M5x60 Hex. socket head bolts

Air cleaner elements: Be careful of

each shape and

direction.

CLEANING / MAINTENANCE

Refer to Fig. 49.

(1)

Remove four 3x24 Tapping screws, then separate Metering diaphragm and Metering diaphragm gasket.

 

 

 

 

 

 

Note: In case Metering diaphragm remains attached to the others in disassembling of Carburetor, be careful to remove

 

Metering diaphragm and gasket. It is fragile.

 

 

 

 

 

 

 

 

 

(2)

Replace Metering diaphragm when the following problems happen:

Fig. 50

 

 

 

 

 

 

 

• slackened • hardened • worn / debased

 

 

 

 

 

 

(3)

Loosen M3x4 screw in Pump body to remove Inlet needle and Control lever etc.

Control lever

 

 

Spring

 

(Refer to Fig. 50) from Carburetor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(4)

Before assembling Pump body, check that the top of Inlet needle is not

 

 

 

 

Inlet needle

 

deformed/ worn out. (Fig. 51).

M3x4 + screw

 

 

 

 

 

 

(5)

When Control lever is set in place, make sure that Spring is put properly. (Fig. 52)

 

 

 

Note:

 

 

 

 

 

(6)

Regarding three M3x8 Pan head screws with washers, loosen Idling screw fully

 

 

 

 

 

 

 

 

 

 

 

These items can not

 

first, and then remove them.

 

 

 

 

 

 

 

be supplied solely.

(7)

After checking if Inlet screen is clogged with dust, fit it into Pump body.

Pin

Order Pump body

(8)

Spray carburetor cleaner each route in Carburetor and then clean it with gasoline

 

 

 

to replace them.

 

after a few minutes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 49

Carburetor

Fig. 51

Pump body

Inlet

screen

(M3x4 screw

 

is included.)

 

Metering diaphragm gasket

Metering diaphragm

Air purge body

Primer pump

M3x8 Pan head

Swivel

screw with

Washer

washer

(2pcs.)

Stop ring

 

E-3

(Throttle valve

(Idling screw)

assembly)

 

Conical

 

compression

O ring 2

spring 5-9

Jet

 

 

Pump gasket

Normal

Fig. 52

 

Pump

 

diaphragm

Primer pump

3x24 Tapping

cover

screw (4pcs.)

 

Image 10
Contents Optional accessories SpecificationStandard equipment Necessary Repairing Tools RepairDisassembling Engine and ShaftAssembling Brushcutter attachment String trimmer attachmentGear case assembly Shaft pipe B complete Check of Plug CAP Clutch drumIgnition Check of Spark PlugDisassembling of Ignition Coil FlywheelAssembling of Ignition Coil Recoil starter Cleaning / Maintenance CarburetorTest of Airtight Structure Stop switchFuel tube Assembling to EngineMaintenance Engine blockMatching surface emphasized by black color Repair DISASSEMBLY/ASSEMBLY 4-14. Engine block Fastening torque