LawnMaster NPTGSP2617A User manual

SERVICE MANUAL
26cc 2-Cycle Grass Trimmer
NPTGSP2617A
Read all safety rules and instructions carefully before servicing this tool.
601 Regent Park Court Greenville, SC 29607, 1-866-384-8432

2
Section Page
CONTENTS
CONTENTS 2
SPECIFICATIONS 3-5
GENERAL SAFETY RULES 6
PARTS AND FEATURES 7-11
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 SPOOL 40-42
MANUFACTURER'S WARRANTYAND CONTACT 43

3
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 40 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
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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

4
SPECIFICATIONS
Flywheel to crankshaft Apply a thermostable screw-thread glue onto the FUDQNVKDIWWKUHDG3UHVFUHZWKHÀDQJHKH[DJRQQXW
(M8) and then tighten. 89-133 10-15
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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
À\ZKHHO
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
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LJQLWLRQFRLO3UHVVGRZQWKHLJQLWLRQFRLOÀXVKDJDLQVW
the feeler gauge. Tighten the screws with a torque
spanner securing the ignition coil. Remove the feeler
gauge.
27-35 3-4
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Apply a thermostable screw-thread glue onto the 2
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the torque wrench.
62-71 7-8
Apply a thermostable screw-thread glue onto the
head section of 1 screw (M5X10). Pass the screw
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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
$LU¿OWHUEDVHWR
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

5
SPECIFICATIONS
Flywheel cover to
crankcase
Apply a thermostable screw-thread glue into the two
holes on crankcase. Tighten the 2 screws (M5X15)
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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 ORZHUHQJLQHFRYHUVRQPXIÀHUVLGH 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
À\ZKHHOFRYHU
Apply a thermostable screw-thread glue into the four
VFUHZKROHVRQÀ\ZKHHOFRYHU7LJKWHQWKHVFUHZV
(M5X20) securing the transmission yoke. 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
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

6
GENERAL SAFETY RULES
SAFETY
To protect the eyes from loose objects that could be thrown from the trimmer, always wear eye
protection with side shields marked to comply with ANSI Z87.1 when operating the trimmer.
Use only genuine manufacturer’s replacement parts for this product. Failure to do so may cause poor
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Scarfs, neckties, jewelry, jackets or other loose clothing and accessories should be avoided as they
can be caught on or become entangled in the trimmer. 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.
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GENERAL TRIMMER SAFETY
Never operate the trimmer with a damaged guard or without the guard in place.
Avoid getting into direct contact with the line.
Always remember to keep both hands on the control handles when the engine is running.
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to operating the trimmer.
Empty the fuel tank before storing if the trimmer will not be used for a few days.
Make sure the control handles have not accumulated oil and fuel and are clean and dry.
See Operator’s Manual for additional safety precautions.
WORK AREA
Operate only in well ventilated areas.
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for storing gasoline. Wipe the trimmer dry if fuel is spilled on it. Always move away from the fueling
area before starting the engine.
Fuel the trimmer at least 10 ft. (3 m) from the place where you start the engine and operate the
trimmer.
NOTE: The trimmer head will rotate during carburetor adjustment. Wear protective equipment and
observe all safety instructions.

7
PARTS AND FEATURES
NPTGSP2617A EXPLODED VIEW

8
PARTS AND FEATURES
NPTGSP2617A PARTS LIST
Key
Number Application Description Quantity
1 321001101 Cleva 26cc 2-Cycle Engine 1
2 321001102 Throttle-body & Starter Set 1
2.1 321001103 Throttle-body Set 1
2.2 321001104 Starter Set 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
4 141004102 Cable Clamp 2
5 321001111 Clutch Assembly 1
5.1 321005103 Screw 4
6 321001113 Wire Lock 1
7 321001114 7.2V Lithium-Ion Battery 1
8 321005104 Aluminum Upper Trimmer Shaft 1
9 321001116 Assist Handle Assembly 1
9.1 321001117 Assist Handle 1
9.2 321001118 Handle Clasp 1
9.3 321001119 Ball Joint 1
9.4 321001120 Ball Socket 1
10 321002102 Shaft Connection Sleeve 1
11 321005105 Aluminum Lower Trimmer Shaft 1
12 321005106 Debris Guard Bracket 1
13 321001121 *HDU%R[ 1
13.1 321005107 Screw 1
13.2 321001112 Bolt 1
13.3 321001122 Bolt 1
14 321001124 Cover Plate 1
15 321001125 Debris Guard 1
16 321001126 Rapid Reload Head Assembly 1
16.1 321001129 Rapid Reload Spool Spring 1
17 321001127 Charger 1
18 221003102 Shoulder Strap (Available Separately) 1
19 321001128 Shoulder Strap Clasp (Available Separately) 1
20 321004122 0+H[DJRQ6RFNHW:UHQFK 1
21 321004121 0+H[DJRQ6RFNHW:UHQFK 1
22 321004123 Open End Wrench 1
23 321004124 Socket Wrench 1

9
PARTS AND FEATURES
EXPLODED VIEW 26CC 2-CYCLE ENGINE

10
PARTS AND FEATURES
26CC 2-CYCLE ENGINE PART 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 $LU'HÀHFWRU 1
6 321002109 Cylinder Air Damper 1
7 321001136 0XIÀHU&RYHU 1
8 321001137 0XIÀHU 1
9 321001138 Insulation Sheet 1
10 321001139 Spark Plug 1
11 321002110 Gasket 1
12 321002111 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