Makita ER2650LH User Manual

ECHNICAL INFORMATION

PRODUCT

P 1/ 14

ER2650LHModels No.

Description

Petrol String Trimmer

CONCEPT AND MAIN APPLICATIONS

Model ER2650LH is a petrol string trimmer equipped with

25.4cm³ 4-stroke engine in compliance with all known exhaust emission regulations.

Specification

Model EH026 Type

Engine

Speed: min.ˉ¹=spm

Engine oil

Carburetor Starting system Fuel tank capacity: L (US oz) Primer pump Yes Clutch Yes Spindle size Cutting width: mm (") 412 (16-1/4) Handle style Loop handle Rapid start Dry weight*

*1: However, equipped with mechanical decompression *2: without guard, cutting tool

Displacement: cm³ (cu.in.)

Fuel Max. output: kW (PS) Max. torque: N.m at max. output power

with nylon cutting head (nylon cord diameter: mm)

in the Class SF or higher of API classification

Recoil starter, with mechanical decompression

2: kg (lbs) 4.8 (10)

Straight unleaded gasoline

1.1 (at 5,500 min.

SAE10W-30 oil

M8 x 1.25, Right-handed

4-stroke

25.4 (1.5)

0.77 (1.1)

7,000

10,000at no load

7,900

(2.4)

Diaphragm

0.6 (20.3)

No*

Dimensions: mm (")

Length (L) 1,621 (64)

310 (12-1/4)Width (W)

Height (H)

ˉ¹)

479 (18-7/8)

Standard equipment

Nylon cutting head .......................................................................................... 1

Socket wrench (for 10-16) .............................................................................. 1

Hex wrench 4 .................................................................................................. 1

Pin 4 ................................................................................................................ 1

Accessory bag ................................................................................................. 1

Oil set (oil bottle containing 80mL engine oil) ............................................... 1

Note: The standard equipment for the tool shown may vary by country.

Optional accessories

Nylon cutting heads [Bump & feed 4, Ultra Auto 4]

P 2/ 14

Repair

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

[1] NECESSARY REPAIRING TOOLS

Code No. Description Use for

1R004

1R127

1R171

1R286

---

[2] GASKET

(1) Replace the removed gasket with the new one. (2) Clean the matching surface where the gasket is placed to maintain its sealing performance.

Retaining ring pliers ST-2 for External ring removing/ assembling Retaining rings S-12 and S-24

Air density tester diagnosing Carburetor

removing / assembling M5 Hex socket head boltT-type hex. wrench 4-130

removing Clutch drum and Ball bearing 6001LLURound bar for arbor 20-1001R247

press-fitting Clutch drumRound bar for arbor 12-50

holding Cutter holderSpring pin extractor 4.01R308

removing FlywheelFlywheel puller1R364

Feeler gauge set1R366

Wire brush

Adjusting Ignition coil, Spark plug and Rocker arm assembly

removing / assembling FlywheelHex socket bit 13

cleaning Spark plug

[3] LUBRICANT / ADHESIVE APPLICATION

(1) Apply Makita grease N No.2 to Spiral spring in Recoil starter and the spline ends of Shaft. (2) Apply Liquid gasket; ThreeBond 1215, to the matching surface of Crank case and Cylinder block when assembled. (Fig. 55)

[4] DISASSEMBLY/ASSEMBLY [4]-1. Attention

Follow the instructions below during repairing.

• Wear glove to avoid injury.

• Cool down the engine enough before repairing to avoid skin burn.

• Remove the remaining fuel in Tank and Carburetor completely. Note; No open flames in the workshop.

• Repair the tool on the stable workbench and keep dust out.

• Record where and how the parts are assembled to avoid mis-assembling. And assort and keep the disassembled parts in the box by section.

• Treat the disassembled parts carefully. Be sure to clean and wash parts before assembling.

• Use Impact driver if bolts and screws can not be loosen.

• Tighten the bolts and the screws to the specific torque as listed in Fig. 59.

• Check the movement and sound of the main parts by manually turning each part once assembled.

• Check the assembled parts by manually turning them if there is any faulty or unusual gap.

P 3/ 14

Repair

[4] DISASSEMBLY/ASSEMBLY [4]-2. Engine and Shaft

DISASSEMBLING

(1) Disconnect lead wire and grounding wire by removing each connector after Air cleaner cover is removed. (Fig. 1) (2) Remove Control cable from Insulator by loosening nuts of the adjust screw and disconnecting inner cable from Swivel of Carburetor. (Fig. 2)

Fig. 1

Fig. 2

Inner cable of Control cable

Swivel

Adjust screw of Control cable

Cable holder of Insulator

Connector (4pcs.)

(3) Loosen two M5x18 Hex socket head bolts on Pipe holder and remove M5x12 Hex socket head bolt. (Fig. 3) (4) Pull out Shaft pipe complete from Engine (Pipe holder). (Fig. 4) Note: Cover cloth on a shaft and pull out it by grasping it with Waterpump pliers in case the shaft is stuck at the spline engagement. (Fig. 5).

Fig. 3 Fig. 4

M5x13 Hex. socket head bolt

Shaft pipe

M5x18 Hex. socket head bolt (2pcs.)

Fig. 5

Pipe holder

Shaft pipe complete

Nuts of Control cable

Shaft

Pipe holder

cloth

Shaft

Water pump pliers

ASSEMBLING

Take the reverse step of disassembly. Set Control cable in place. (Fig. 2, Fig. 6)

Fig. 6

Hook the tip end of Inner cable in the groove of Swivel on Carburetor and fix Control cable in the Cable holder of Insulator by tightening Nuts of Control cable. Note: Adjust the tension of the cable to allow the play 1mm to 2mm.

Tip end of Inner cable to be hooked on Swivel

Adjust screw

Control cable

Inner cable

Nuts to fix in Cable holder of Insulator

Insulator

Swivel

Repair

[4] DISASSEMBLY/ASSEMBLY [4]-3. Shaft pipe complete

DISASSEMBLING

(1) Loosen two M5x25 Hex socket head bolts and remove Clamp cover B and Loop handle. (Fig. 7) (2) Remove 4x18 Tapping screws (4pcs) and M5x14 Hex socket head bolts, then separate Lever case R and L. (Fig. 8)

Fig. 7

Fig. 8

P 4/ 14

M5x25 Hex. socket head bolt (2pcs.)

Shaft pipe complete

Loop handle

Clamp cover B

(3) Disassemble Shaft pipe complete by following the disassembly step of the chapter [4]-2. (4) Pull out a shaft from Shaft pipe complete.

ASSEMBLING

Take the disassembling step in reverse.

Lever case set

M5x14 Hex socket head bolt (2pcs.)

4x18 Tapping screw (4pcs)

[4] DISASSEMBLY/ASSEMBLY [4]-4. Head case complete

DISASSEMBLING

(1) Disassemble Protector and Head case complete. (Fig. 9)

Fig. 9

1. Disassemble Protector by removing Hex bolt (2pcs) and Hex socket bolt (1pc).

2. Insert 1R308 in a hole on Cutter holder to lock shaft and remove Cutter assembly by turning it clockwise.

Shaft pipe complete

Protector

1R308

Cutter assembly

Cutter holder

Hex socket head bolt

Hex bolt

3. Loosen M5x25 Hex socket head bolt and remove Head case complete.

Shaft pipe M5x25 Hex socket head bolt

Shaft pipe

complete

Head case complete

Repair

[4] DISASSEMBLY/ASSEMBLY [4]-4. Head case complete (cont.)

DISASSEMBLING

(2) Disaasemble Cutter shaft and Ball bearings from Head case complete. (Fig. 10)

Fig. 10

P 5/ 14

1. Make Hex wrench 5 square shape by grinding its two diagonal edges and insert it into the square hole of Cutter shaft.

Head case complete

Hex wrench 5

Square hole of Cutter shaft

Grind these edges.

3. Remove Cutter shaft with Arbor press. And then, remove Ball bearing 608DDW by using 1R286.

Hex wrench 5

Arbor press

Head case complete

2. Fix Head case with vise and lock Cutter holder with 1R308. Then, turn Wrench 5 counterclockwise and disassemble Cutter holder.

Head case complete

vise

Hex wrench 5

1R286

1R308

Ball bearing 608DDW

ASSEMBLING

(1) Take reverse step of the disassembly. (Fig. 10, 11) Note: • Pay attention to the assembly direction of Washer and Bearing washer.

• Shaft end can be fitted into the square hole of Cutter shaft by twisting it with pliers to match their angles without disassembling Head case.

Fig. 11

Ball bearing

Cutter holder Washer

Spring washer M8

Head case

M5x25 Hex socket head bolt

608DDW Cutter shaft Bearing washer

Collar Ball bearing

608ZZ

+ 9 hidden pages