LawnMaster NPTGSP2617A Service Manual
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LawnMaster NPTGSP2617A Service Manual

26cc 2-cycle grass trimmer
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User Manual of Product 1:
LawnMaster NPTGSP2617A No-Pull Gas Grass Trimmer with
Electric Start 26cc 2 Cycle 17-Inch

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Summary of Contents for LawnMaster NPTGSP2617A

  • Page 1 User Manual of Product 1: LawnMaster NPTGSP2617A No-Pull Gas Grass Trimmer with Electric Start 26cc 2 Cycle 17-Inch...
  • Page 2 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...

  • Page 3: Table Of Contents

    CONTENTS Section Page CONTENTS SPECIFICATIONS GENERAL SAFETY RULES PARTS AND FEATURES 7-11 WIRING DIAGRAM AND MANAGEMENT GENERAL TROUBLESHOOTING 13-21 AIR & FUEL SYSTEM 22-29 THROTTLE AND STARTER SYSTEM 30-34 NOPULL™ STARTER SYSTEM 35-38 26CC 2-CYCLE ENGINE GEAR HEAD AND SPOOL 40-42 MANUFACTURER'S WARRANTY AND CONTACT...

  • Page 4: Specifications

    SPECIFICATIONS UNIT SPECIFICATIONS Engine Engine Size 2-Stroke / Full Crank Engine Displacement Claimed / Rated 26cc / 25.4cm Ignition Capacitor Discharge Ignition (CDI) Fuel System Carburetor All Position Diaphragm Type With Primer Bulb Air Filter Foam (Dry) Engine Shut Off Auto-Reset Throttle Control Variable Speed Trigger...
  • Page 5 SPECIFICATIONS Apply a thermostable screw-thread glue onto the Flywheel to crankshaft crankshaft thread. Pre-screw the flange hexagon nut 89-133 10-15 (M8) and then tighten. Slide the corrugated washers onto the clutch bolts (M6X21.5). Apply a thermostable screw-thread glue Clutch to flywheel onto the bolt thread head section.
  • Page 6 SPECIFICATIONS Apply a thermostable screw-thread glue into the two Flywheel cover to holes on crankcase. Tighten the 2 screws (M5X15) 53-64 6-7.2 crankcase securing the flywheel cover to crankcase. 1.1-1.3 (for 10-12 Place the lower engine cover onto crankcase. Tighten 1*ST3.9X8) Lower engine cover the 3 screws (1*ST3.9X8, 2*M5X10) securing the...

  • Page 7: General Safety Rules

    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 fit, poor function and possible injury.

  • Page 8: Parts And Features

    PARTS AND FEATURES NPTGSP2617A EXPLODED VIEW...
  • Page 9 PARTS AND FEATURES NPTGSP2617A PARTS LIST Application Description Quantity Number 321001101 Cleva 26cc 2-Cycle Engine 321001102 Throttle-body & Starter Set 321001103 Throttle-body Set 321001104 Starter Set 2.2.2 321001106 Starter Switch Assembly 2.2.3 321001107 Stop Switch Set 2.2.4 321001108 PCB Assembly...
  • Page 10 PARTS AND FEATURES EXPLODED VIEW 26CC 2-CYCLE ENGINE...
  • Page 11 PARTS AND FEATURES 26CC 2-CYCLE ENGINE PART LIST Application Description Quantity Number 321001130 Spark Plug Cover 321001131 321001132 Upper Engine Cover 321001133 Logo 321001134 Air Deflector 321002109 Cylinder Air Damper 321001136 Muffler Cover 321001137 Muffler 321001138 Insulation Sheet 321001139 Spark Plug 321002110 Gasket 321002111...
  • Page 12 PARTS AND FEATURES 321002127 Crankshaft Set 321002128 Piston Ring 321002129 Piston 321002130 Retainer Ring 321002131 Retainer Ring 321002132 Needle Bearing 321002133 Piston Pin 321002134 Crankcase Assembly 321002142 Flywheel 321002143 Flange Nut M8 311014125 Flat Key 321002145 Clutch Assembly 321002146 Washer 321002147 Corrugated Washer 321002148...

  • Page 13: Wiring Diagram And Management

    WIRING DIAGRAM AND MANAGEMENT - IGNITION AND STARTING Push-Start 2S Battery Pack Starter Switch (Self-reset) Panel Battery Connector VCC’ Battery Connector Bullet Terminal(BL) Electric PCB ASSEMBLY Motor Bullet Terminal(BL) Handle Engine Ignition lgnition Handle Stop Switch (Self-reset) 3.5 Bullet Terminal 3.5 Bullet Terminal Ignition Coil Spark Plug...

  • Page 14: General Troubleshooting

    GENERAL TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION The electric motor does The battery is not fully Charge the battery fully and insert it not start, and the battery charged or not inserted correctly. indicator LED flashes red. correctly. The motor does not start, Allow the battery to cool to room and the battery indicator The battery is overheated.
  • Page 15 GENERAL TROUBLESHOOTING No fuel. Add fuel to the fuel tank. The fuel tube is blocked. Remove the blockage. The carburetor nut loosens Tighten the carburetor nut or replace the and has air leakage. carburetor washer. Clean or replace the spark plug. Reset the spark plug gap.
  • Page 16 GENERAL TROUBLESHOOTING Spark plug electrode is wet. Dry the spark plug. Spark plug has carbon Remove the carbon deposit. deposit. Spark plug insulation is Replace the spark plug. broken. Spark plug gap is too big/ Adjust to 0.026”±0.002” (0.65±0.05 mm). small.
  • Page 17 GENERAL TROUBLESHOOTING Incorrect carburetor Re-adjust the carburetor. adjustment. The carburetor has an air Replace or re-tighten. leakage. No load speed is not stable/consistent. Fuel tube is broken. Replace. Crankcase washer has air Replace. leakage. Fuel seal has air leakage. Replace. Idle speed is too high.
  • Page 18 GENERAL TROUBLESHOOTING Engine Compression (See Figs. 1-3) Low compression will cause erratic idling, low power, and hard starting when hot. To test the engine compression: ■ Remove the spark plug cover using the provided hex wrench (Fig. 1). ■ Remove the spark plug cap. Fully cover the spark plug using the provided socket wrench. Rotate the wrench counter-clockwise to remove the spark plug (Fig.
  • Page 19 GENERAL TROUBLESHOOTING ■ Remove the spark plug cover. Remove the spark plug cap and the spark plug. Check and remove the carbon deposit in the spark plug. The spark plug gap should be 0.65±0.05mm. Inspect the electrodes for wear and deposits (Fig. 7). ■...
  • Page 20 GENERAL TROUBLESHOOTING Clutch Replacement (See Figs. 12-18) ■ Remove the 4 screws to remove the transmission yoke (Fig. 12 & 13). Bolts Fig. 12 Fig. 13 ■ Remove the upper engine cover. ■ Unscrew the bolts on the clutch assembly using an impact driver or wrench (Fig. 14). ■...
  • Page 21 GENERAL TROUBLESHOOTING ■ Turn the clutch upside down and slide the flat washers onto the bolts. Apply the thread-locking glue for 3-5 screw threads and then re-install the clutch (Fig. 17 & 18). Fig. 17 Fig. 18 Flywheel (Rotor) Replacement (See Figs. 19-22) ■...
  • Page 22 GENERAL TROUBLESHOOTING Fig. 21 ■ Check the woodruff key is in good condition and installed into place. Examine it for signs of damage. Check if the rotor magnets meet the requirements. Check that the fins are in good condition. Replace with a new flywheel if necessary (Fig. 22). Fig.

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