LawnMaster NPTBSP2609A User manual

SERVICE MANUAL

26cc 2-Cycle Brush Cutter

NPTBSP2609A

Read all safety rules and instructions carefully before servicing this tool.

601 Regent Park Court Greenville, SC 29607, 1-866-384-8432

Section Page

CONTENTS

CONTENTS 2

SPECIFICATIONS 3-4

GENERAL SAFETY RULES 5

PARTS AND FEATURES 6-11

WIRING DIAGRAM AND MANAGEMENT 12

GENERAL TROUBLESHOOTING 13-21

AIR & FUEL SYSTEM 22-29

THROTTLE AND STARTER SYSTEM 30-34

NOPULL™ STARTER SYSTEM 35-38

26CC 2-CYCLE ENGINE 39

GEAR HEAD AND BRUSH CUTTER BLADE 40

MANUFACTURER'S WARRANTY AND CONTACT 41

SPECIFICATIONS

TORQUE SPECIFICATIONS

Engine Size 2-Stroke / Full Crank

Engine Displacement Claimed / Rated 26cc / 25.4cm3

Ignition Capacitor Discharge Ignition (CDI)

Carburetor All Position Diaphragm Type With Primer Bulb

Air Filter Foam (Dry)

Engine Shut Off Auto-Reset

Throttle Control Variable Speed Trigger

Fuel / Oil Ratio 40 : 1

Fuel Tank Capacity 400 ml

Spark Plug Champion RCJ6Y

Rotor Air Gap 0.012”-0.015” (0.30-0.40 mm)

Spark Plug Gap 0.026” (0.65 mm)

Run Time on Full Tank 30 Minutes

UNIT SPECIFICATIONS

Engine

Fuel System

General

Application Description Torque Torque

(IN.LBS) (N.m)

Crankcase Apply a thermostable screw-thread glue onto the 4

screws (M5X30) and then x the crankcase cover. 53-62 6-7

Cylinder to crankcase

Apply a thermostable screw-thread glue onto the 4

screws (M5X20) and then tighten the screws securing

the cylinder to crankcase.

53-62 6-7

Spark plug to cylinder Pre-screw the spark plug to the cylinder, and then

tighten with a torque spanner. 115-137 13-15.5

Carburetor mount to

cylinder

Apply a thermostable screw-thread glue onto the 2

screws (M5X20) and tighten the screws securing the

carburetor mount to the cylinder.

35-44 4-5

SPECIFICATIONS

Flywheel to crankshaft

Apply a thermostable screw-thread glue onto the

crankshaft thread. Pre-screw the ange hexagon nut

(M8) and then tighten.

89-133 10-15

Clutch to ywheel

Slide the corrugated washers onto the clutch bolts

(M6X21.5). Apply a thermostable screw-thread glue

onto the bolt thread head section. Install the bolts into

the clutch and tighten the bolts securing the clutch to

ywheel.

71-89 8-10

Ignition coil to cylinder

Put the 2 screws (M5X20) through the ignition coil

and two spacers respectively. Apply a thermostable

screw-thread glue into the cylinder holes and then pre-

screw the 2 screws (M5X20). Insert a feeler gauge

of 0.014 in. (0.35mm) between the ywheel and the

ignition coil. Press down the ignition coil ush against

the feeler gauge. Tighten the screws with a torque

spanner securing the ignition coil. Remove the feeler

gauge.

27-35 3-4

Mufer to crankcase

Put the 2 bolts (M5X50) through the mufer assembly.

Apply a thermostable screw-thread glue onto the 2

bolts and secure the mufer to the crankcase using

the torque wrench.

62-71 7-8

Apply a thermostable screw-thread glue onto the

head section of 1 screw (M5X10). Pass the screw

through the positioning hole on the mufer assembly

holder and tighten the screw securing the mufer to

crankcase.

62-71 7-8

Pawl assembly to

crankshaft

Apply a thermostable screw-thread glue onto the

crankshaft thread. Pre-screw the pawl assembly to

crankshaft, and then tighten using the torque wrench.

62-80 7-9

Air lter base to

carburetor

Pre-screw the nuts (M5) with washers, and then

tighten using the pneumatic tool. 27-35 3-4

Fuel tank bracket to

crankcase

Apply a thermostable screw-thread glue onto the

screw (M5X10) and pass it through the hole on fuel

tank bracket. Tighten the screw securing the fuel tank

bracket to crankcase.

27-35 3-4

Fuel tank to crankcase

Apply a thermostable screw-thread glue onto the

screw (M5X12). Pass it through the fuel tank hole.

Tighten the screw securing the fuel tank to crankcase.

27-35 3-4

Cylinder pressure plate

Apply a thermostable screw-thread glue onto the

screw (M5X10). Pass the screw through the cylinder

pressure plate hole and then tighten it onto the

cylinder.

27-35 3-4

Electric starter

assembly to crankcase

Align the 2 screw holes on the electric starter

assembly with the screw holes on crankcase. Tighten

the 2 screws (M5X60) securing the electric starter

assembly to crankcase.

27-35 3-4

Rear engine cover

assembly

Tighten the 2 screws (ST3.9X30F) to secure the rear

engine cover. 12-13 1.3-1.5

SPECIFICATIONS

Flywheel cover to

crankcase

Apply a thermostable screw-thread glue into the two

holes on crankcase. Tighten the 2 screws (M5X15)

securing the ywheel cover to crankcase.

53-64 6-7.2

Lower engine cover

assembly

Place the lower engine cover onto crankcase. Tighten

the 3 screws (1*ST3.9X8, 2*M5X10) securing the

lower engine cover.

10-12

1.1-1.3 (for

1*ST3.9X8)

27-35

3-4 (for

2*M5X10)

Upper engine cover

assembly

Tighten the 3 screws (M5X35) securing the upper

engine cover. 27-35 3-4

Spark plug cover to

upper engine cover

Tighten the screw (M5X10) securing the spark plug

cover to upper engine cover. 27-35 3-4

Lower engine cover to

upper engine cover

Tighten the screw (ST3.9X12) to secure the upper and

lower engine covers (on mufer side). 10-12 1.1-1.3

Right handle cover to

left handle cover

Tighten the screws (ST3.9X16) to secure the right and

left parts of the main handle. 10-12 1.1-1.3

Transmission yoke to

ywheel cover

Apply a thermostable screw-thread glue into the four

screw holes on ywheel cover. Tighten the screws

(M5X20) securing the transmission yoke.

53-62 6-7

Shaft connection sleeve

to upper shaft

Align the shaft connection sleeve with the screw holes

on upper shaft. Tighten the screws (M5X25 & M5X12)

securing the shaft connection sleeve to upper shaft.

53-62 6-7

Gear box to lower shaft

Align the screw holes on the gear box with the lower

shaft. Tighten the screws (M5X12, M6X25, M6X10)

securing the gear box to lower shaft.

53-62 6-7

Transmission yoke

assembly

Align the screw holes on the transmission yoke with

the screw holes on upper shaft. Tighten the screws

(M5X12 & M6X25) securing the transmission yoke to

upper shaft.

53-62 6-7

Shoulder strap clasp

assembly

Adjust the position of the shoulder strap clasp and

tighten the screw (M5X16). 27-35 3-4

Trimming line cutting

blade assembly

Tighten the screws (ST3.9X16) with washers to secure

the trimming line cutting blade to the debris guard. 10-12 1.1-1.3

Ratchet to electric

starter assembly

Attach the ratchet to the electric starter lower cover.

Apply a thermostable screw-thread glue onto the head

section of the screw (M5X10) and tighten the screw

(M5X10) securing the ratchet.

27-35 3-4

Electric starter motor

assembly

Align the electric starter motor with the screw holes on

the electric starter upper cover. Apply a thermostable

screw-thread glue onto the head section of the screws

(M3X8) and tighten the screw securing the electric

motor.

4-6 0.5-0.7

Electric starter lower

and upper covers

assembly

Tighten the two screws (ST2.9X12F) securing the

lower and upper covers of the electric starter. 4-5 0.4-0.6

GENERAL SAFETY RULES

SAFETY

To protect the eyes from loose objects that could be thrown from the brush cutter, always wear eye

protection with side shields marked to comply with ANSI Z87.1 when operating the brush cutter.

Use only genuine manufacturer’s replacement parts for this product. Failure to do so may cause poor

t, poor function and possible injury.

Scarfs, neckties, jewelry, jackets or other loose clothing and accessories should be avoided as they

can be caught on or become entangled in the brush cutter. Secure hair so it is above shoulder level. To

protect your legs and feet, long pants and closed toed shoes should be worn.

To improve your grip and protect your hands, wear heavy-duty nonslip gloves.

The sound level exceeds 85 dB(A). To prevent hearing damage, always wear sound barriers (ear plugs

or ear mufers).

GENERAL BRUSH CUTTER SAFETY

Never operate the brush cutter with a damaged guard or without the guard in place.

Avoid getting into direct contact with the brush cutter blade.

Always remember to keep both hands on the control handles when the engine is running.

Do not operate the brush cutter if there is a fuel leak as it is a re hazard. The fuel leak must be xed

prior to operating the brush cutter.

Empty the fuel tank before storing if the brush cutter will not be used for a few days.

Make sure the control handles have not accumulated oil and fuel and are clean and dry.

Beware of blade kickback:

- Blade kickback may occur when the spinning blade contacts an object that it does not immediately

cut.

- Blade kickback can be violent enough to cause the unit and/or operator to be propelled in any

direction, and possibly lose control of the unit.

- Blade kickback can occur without warning if the blade snags, stalls or binds.

- Blade kickback is more likely to occur in areas where it is difcult to see the brush or vegetation being

cut.

A coasting blade can cause injury while it continues to spin after the engine is stopped or throttle

trigger is released. Maintain proper control until the blade has completely stopped rotating.

See Operator’s Manual for additional safety precautions.

WORK AREA

Operate only in well ventilated areas.

Observe all safety regulations for the safe handling of fuel. Mix and handle fuel in a container approved

for storing gasoline. Wipe the brush cutter dry if fuel is spilled on it. Always move away from the fueling

area before starting the engine.

Fuel the brush cutter at least 10 ft. (3 m) from the place where you start the engine and operate the

brush cutter.

NOTE: The brush cutter blade will rotate during carburetor adjustment. Wear protective equipment and

observe all safety instructions.

PARTS AND FEATURES

NPTBSP2609A EXPLODED VIEW

PARTS AND FEATURES

NPTBSP2609A PARTS LIST

Key

Number Application Description Quantity

1 641002101 Cleva 26cc 2-Cycle Engine 1

2 321001102 Throttle-body & Start Set 1

2.1 321001103 Throttle-body Set 1

2.2 321001104 Starter Set 1

2.2.1 321001105 Micro Switch 1

2.2.2 321001106 Starter Switch Assembly 1

2.2.3 321001107 Stop Switch Set 1

2.2.4 321001108 PCB Assembly 1

3 321001109 Handle Spacer 2

5 641001104 Aluminum Upper Shaft 1

4 141004102 Cable Clamp 2

6 641001105 Shaft Connection Sleeve 1

7 641001106 Aluminum Lower Shaft 1

8 641001107 Gear Box 1

9 641001108 Blade Guard Assembly 1

10 221003105 Cover Plate 1

11 RBB2609A 9" Blade 1

12 641001111 Blade Clamp Assembly 1

13 641001112 Saw Blade Sheath 2

14 641001113 Debris Guard 1

15 321001127 Charger 1

16 321001114 7.2V Lithium-Ion Battery 1

17 321001113 Wire Lock 1

18 221003102 Shoulder Strap 1

19 641001115 Clutch Assembly 1

19.1 321005103 Screw 4

20 641001116 P-Handle 1

21 321001128 Shoulder Strap Clasp 1

22 321004122 M5 Hexagon Socket Wrench 1

23 321004121 M6 Hexagon Socket Wrench 1

24 321004123 Open End Wrench 1

25 321004124 Socket Wrench 1

PARTS AND FEATURES

EXPLODED VIEW 26CC 2-CYCLE ENGINE

PARTS AND FEATURES

NPTBSP2609A PARTS LIST

Key

Number Application Description Quantity

1 321001130 Spark Plug Cover 1

2 321001131 Nut 1

3 321001132 Upper Engine Cover 1

4 321001133 Logo 1

5 321001134 Air Deector 1

6 321002109 Cylinder Air Damper 1

7 321001136 Mufer Cover 1

8 321001137 Mufer 1

9 321001138 Insulation Sheet 1

10 321001139 Spark Plug 1

11 321002110 Gasket 1

12 641002103 Ignition Coil Assembly 1

13 321002112 Positive Stop Switch Cable 1

14 321002113 Spacer Set 4

15 321002114 Cylinder 1

16 321002115 Gasket 1

17 321001143 Pawl Assembly 1

18 321002116 Electric Starter Assembly 1

19 321002117 Rear Engine Cover 1

20 321002118 Carburetor Mount Assembly 1

21 321002119 Washer 1

22 321002120 Carburetor 1

23 321001147 Air Filter Base 1

24 321001148 Air Filter 1

25 321001149 Air Filter Cover 1

26 321001150 Rotary Knob 1

27 321001151 Choke Lever 1

28 321001152 Fuel Cap Assembly 1

29 321002121 Fuel Tank Grommet 1

30 321002122 Fuel Tank 1

31 321002123 Fuel Tube 1

32 321002124 Fuel Tube 1

33 321002125 Fuel Line Filter 1

34 321001154 Rubber Pad 1

35 321001155 Fuel Tank Bracket 1

36 321002126 Negative Stop Switch Cable 1

37 321001156 Lower Engine Cover 1

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