LawnMaster NPTGSP2617A, Service Manual

Page 1: ...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 2: ...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...

Page 3: ...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 VFUHZV 0 DQG WKHQ WKH FUDQNFDVH...

Page 4: ...w WKURXJK WKH SRVLWLRQLQJ KROH RQ WKH PXI HU DVVHPEO KROGHU DQG WLJKWHQ WKH VFUHZ VHFXULQJ WKH PXI HU WR crankcase 62 71 7 8 Pawl assembly to crankshaft Apply a thermostable screw thread glue onto the...

Page 5: ...stable screw thread glue into the four VFUHZ KROHV RQ ZKHHO FRYHU 7LJKWHQ WKH VFUHZV M5X20 securing the transmission yoke 53 62 6 7 Transmission yoke assembly Align the screw holes on the transmission...

Page 6: ...ith 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 R QRW RSHUDWH WKH...

Page 7: ...7 PARTS AND FEATURES NPTGSP2617A EXPLODED VIEW...

Page 8: ...1116 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 Alum...

Page 9: ...9 PARTS AND FEATURES EXPLODED VIEW 26CC 2 CYCLE ENGINE...

Page 10: ...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 3210021...

Page 11: ...rrugated Washer 2 52 321002148 Bolt 2 53 321002149 Flywheel Cover 1 54 321002150 Round Ring 2 55 321002151 Screw 2 56 321002152 Screw 3 57 321002153 Self Tapping Screw 2 58 321002154 Screw 2 59 321002...

Page 12: ...3 5 Bullet Terminal Ignition Coil Spark Plug Engine Engine Body Engine Body 3 5 Bullet Terminal NTC NTC RD RD BK BK BK BK BK BK RD Bullet Terminal BL Bullet Terminal BL Electric Motor Engine Handle lg...

Page 13: ...hly referring to page 36 The motor does not start and the battery indicator LED is continuously on There is an open circuit from the PCB output to the motor connecting line Check if there is an open c...

Page 14: ...rk plug Clip the fuel tube for fuel entering Press the start button to remove the fuel inside the cylinder The engine has less power The choke lever is closed Open the choke lever 7KH DLU OWHU LV EORF...

Page 15: ...art but VSDUN SOXJ UHV FHVV IXHO LQVLGH VSDUN plug Remove the spark plug Clip the fuel tube for fuel entering Press the start button to remove the fuel inside the cylinder Fuel is not clean with water...

Page 16: ...ce After releasing the throttle lever the trimmer head continues to rotate Idle speed is too high Adjust the engine Clutch spring is broken Replace Clutch friction plate is broken Replace The engine a...

Page 17: ...ine compression should be 0 6MPa Ignition System See Figs 4 9 5HPRYH WKH XSSHU HQJLQH FRYHU E UHPRYLQJ WKH VFUHZV ZLWK WKH SURYLGHG KH ZUHQFK DQG screwdriver Fig 4 6 1 4 2 3 Fig 5 Fig 4 Fig 2 Fig 1 En...

Page 18: ...l Replacement section Fig 9 Fig 8 Fig 7 Ignition Coil Replacement See Figs 10 11 5HPRYH WKH XSSHU HQJLQH FRYHU 5HPRYH WKH VSDUN SOXJ FRYHU DQG WKH VSDUN SOXJ FDS 5HPRYH WKH VFUHZV 5HPRYH WKH LJQLWLRQ...

Page 19: ...HU RU ZUHQFK LJ 5HPRYH WKH EROWV DQG FRUUXJDWHG ZDVKHUV 7KHQ UHPRYH WKH FOXWFK DQG DW ZDVKHUV LJ 5HSODFH ZLWK D QHZ FOXWFK 6OLGH WKH FRUUXJDWHG ZDVKHUV RQWR WKH EROWV 7KHQ LQVWDOO WKH EROWV WRJHWKHU Z...

Page 20: ...Ensure screw rods 2 and 3 are protruded longer than screw rod 1 Rotate screw rods 2 and 3 clockwise into the corresponding threaded holes as shown in Fig 21 Make sure screw rods 2 and 3 are level and...

Page 21: ...ig 22 KHFN WKH ZRRGUXII NH LV LQ JRRG FRQGLWLRQ DQG LQVWDOOHG LQWR SODFH DPLQH LW IRU VLJQV RI GDPDJH KHFN LI WKH URWRU PDJQHWV PHHW WKH UHTXLUHPHQWV KHFN WKDW WKH QV DUH LQ JRRG FRQGLWLRQ 5HSODFH ZLW...

Page 22: ...idle speed To adjust the idle speed adjust the T screw together with the L screw VFUHZ DGMXVW WKH ORZ VSHHG RZ UDWH DQG DVVLVW WKH 7 VFUHZ WR DGMXVW WKH LGOH VSHHG VFUHZ DGMXVW WKH KLJK VSHHG RZ UDWH...

Page 23: ...WKURWWOH IRU DERXW PLQXWHV WR ZDUP WKH HQJLQH 2QFH WKH engine warms up run the trimmer at full throttle and bump the trimmer head on the grass or ground 2 to 3 times to advance the cutting line to th...

Page 24: ...K SET A B C D E F G RESET 4650 rpm CLOCK SET A B C D E F G RESET 9300 rpm Fig 30 CLOCK SET A B C D E F G RESET 3130 rpm Fig 32 GMXVW WKH 7 VFUHZ I WKH PD VSHHG DGMXVWHG LQ SUHYLRXV VWHS LV JUHDWHU WKD...

Page 25: ...DLU OWHU 5HPRYH WKH QXWV DQG ZDVKHUV RQ WKH DLU OWHU EDVH E URWDWLQJ WKH VRFNHW ZUHQFK FRXQWHU FORFNZLVH 5HPRYH WKH DLU OWHU EDVH LJ 8QSOXJ WKH IXHO WXEHV ZLWK KDQGV RU SOLHUV 3 77 17 21 127 WR GDPDJH...

Page 26: ...WKH were removed I WKH FDUEXUHWRU PRXQW QHHGV WR EH UHSODFHG UHPRYH WKH VFUHZV WR UHPRYH LW LJ 5HPRYH WKH JDVNHW RI WKH FDUEXUHWRU PRXQW LJ 5HSODFH ZLWK D QHZ FDUEXUHWRU PRXQW DQG JDVNHW 0DNH VXUH WR...

Page 27: ...Replacement 5HPRYH WKH XSSHU HQJLQH FRYHU 5HPRYH WKH VFUHZV WR UHPRYH WKH ORZHU HQJLQH FRYHU ZLWK WKH SURYLGHG KH ZUHQFK DQG screwdriver Fig 43 44 5HPRYH WKH VFUHZV RQ WKH HOHFWULF VWDUWHU DVVHPEO WR...

Page 28: ...UH UHSODFHG LQ WKH H DFW RUGHU LQ ZKLFK WKH ZHUH UHPRYHG Insert the Fuel Tube Connect the fuel tubes with the carburetor The black tube is for fuel entering The transparent is for fuel return The fuel...

Page 29: ...SPHQW LV UHTXLUHG ZKHQ UHPRYLQJ WKH PXI HU LJ 7KH F OLQGHU QV DQG KRXVLQJV VKRXOG EH FKHFNHG SHULRGLFDOO DQG FOHDQHG WR KHOS SUHYHQW WKH HQJLQH IURP RYHUKHDWLQJ KHFN WKH F OLQGHU H KDXVW SLVWRQ DQG SL...

Page 30: ...f the main handle Fig 55 56 LVFRQQHFW WKH OLJKW FDEOH IURP WKH HOHFWULF VWDUWHU FRYHU SODWH DQG WKHQ UHPRYH WKH HOHFWULF starter cover plate Then remove the throttle safety and the torsional spring Ke...

Page 31: ...ulling it out of its slot Fig 60 61 5HSODFH ZLWK D QHZ 3 DVVHPEO DQG PLFURVZLWFK 3DVV WKH PRWRU GULYH OLQHV RI WKH KDQGOH SDUW WKURXJK WKH FRUUXJDWHG SLSH DQG FRQQHFW ZLWK WKH motor drive lines of the...

Page 32: ...are connected in place Fig 65 UUDQJH WKH ZLULQJV LQVLGH WKH KDQGOH FRYHU WR PDNH WKHP VWUDLJKW 7KHQ DOLJQ WKH WZR HQGV RI WKH handle cover with the slots of the two rubbers on the shaft and align the...

Page 33: ...ate 5HVWRUH WKH ULJKW FRYHU RI WKH PDLQ KDQGOH E WLJKWHQLQJ WKH VFUHZV Power Line Connection OLJQ DQG FRQQHFW WKH PDOH DQG IHPDOH WHUPLQDOV RI WKH ZLULQJ KDUQHVV RI WKH PDLQ KDQGOH WR WKH male and fem...

Page 34: ...W DQG WKUXVW LQWR the engine cover UDS WKH FRQQHFWHG WHUPLQDOV RI WKH ZLULQJ KDUQHVV ZLWK WKH FRUUXJDWHG SLSH EXFNOH LJ 5HFKHFN WR HQVXUH WKDW DOO WKH LQVXODWLRQ FRYHULQJ RXWVLGH WKH ZLULQJ KDUQHVV VK...

Page 35: ...his occurs release the start button and press it again to re start the electric motor Troubleshooting 7KH HOHFWULF PRWRU GRHV QRW VWDUW ZKHQ SUHVVLQJ WKH VWDUW EXWWRQ FFRUGLQJ WR LQGLFWRUV WKH possibl...

Page 36: ...HG RQ WKH ZKHHO E If the battery indicator LED is continuously on check that if an open circuit occurs from the PCB output to the motor connecting line When pressing the start button and the LED is c...

Page 37: ...WKH EDWWHU LQGLFDWRU LQGLFDWHV DQ RYHUFXUUHQW LQ WKH HOHFWULF starter Check if the engine is stuck and cannot be rotated smoothly 7KH HOHFWULF PRWRU VWDUWV QRUPDOO EXW WKH GRHV QRW WXUQ RQ ZKHQ SUHVVL...

Page 38: ...fails the possible causes are 1 An open circuit in the connection position between the wiring harness of the engine and the ignition coil 2 An open circuit in the connection position between the wiri...

Page 39: ...HU PDOIXQFWLRQV GLVDVVHPEOH LW WR FKHFN LI WKH HOHFWULF motor is broken test if the wires are in good condition and the gears are in working order XHO WDQN KHFN LI WKHUH LV OHDNDJH LQ WKH WDQN RU LQ W...

Page 40: ...H VSLQGOH 7KHQ URWDWH WKH trimmer head clockwise to remove Fig 84 7R LQVWDOO WKH QHZ WULPPHU KHDG KROG WKH KH ZUHQFK WR ORFN WKH VSLQGOH 7KHQ URWDWH WKH WULPPHU head counter clockwise to install Make...

Page 41: ...e eyelet on the trimmer head housing and the spool in the trimmer head Fully insert the line until you feel it stop and cannot be inserted any further Then insert the other end of the line into the ot...

Page 42: ...FORFNZLVH WR ZLQG WKH OLQH LQ WKH VSRRO LJ 8VLQJ VKHDUV RU D ZLUH FXWWHU FXW WKH OLQH LQ WKH PLGGOH OHDYLQJ DW OHDVW D IHZ LQFKHV RI OLQH protruding from each side KHFN WKH WULPPHU KHDG FRYHU VSRRO DQ...

Page 43: ...warranty 1 Any part that has become inoperative due to alteration misuse commercial use abuse neglect accident or improper storage or maintenance 2 The unit if it has not been operated and or maintain...

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