LawnMaster NPTBL26A, Service Manual

Page 1: ...SERVICE MANUAL 26cc 2 Cycle Handheld Leaf Blower NPTBL26A Read all safety rules and instructions carefully before servicing this tool 601 Regent Park Court Greenville SC 29607 1 866 384 8432...

Page 2: ...ENERAL SAFETY RULES 5 PARTS AND FEATURES 6 10 WIRING DIAGRAM AND MANAGEMENT 11 GENERAL TROUBLESHOOTING 12 21 AIR FUEL SYSTEM 22 28 THROTTLE AND STARTER SYSTEM 29 33 NOPULL STARTER SYSTEM 34 37 26CC 2...

Page 3: ...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 cover Apply the thermostable screw thread glue...

Page 4: ...nd washer to the carburetor holder with the torque wrench 27 35 3 4 Starter assembly to engine mount Tighten the 3 self taping screws ST4 8 16 to secure the starter assembly to the engine mount 17 19...

Page 5: ...WKH XQLW FRROV GRZQ RQWDFW ZLWK KRW VXUIDFHV FRXOG UHVXOW LQ serious burns GENERAL BLOWER SAFETY OZD V UHPHPEHU WR NHHS ERWK KDQGV RQ WKH FRQWURO KDQGOHV ZKHQ WKH HQJLQH LV UXQQLQJ R QRW RSHUDWH WKH E...

Page 6: ...6 PARTS AND FEATURES NPTBL26A EXPLODED VIEW...

Page 7: ...Cycle Engine 1 7 Handle Assembly 1 7 1 Upper Handle Assembly 1 7 2 Starter Set 2 7 3 Battery Release Button 2 7 4 Cruise Control Lever 1 7 5 Stop Switch 4 7 6 PCB Assembly 1 7 7 301001114 Anti Vibrat...

Page 8: ...TURES EXPLODED VIEW 26CC 2 CYCLE ENGINE 5 6 7 8 9 10 11 12 13 14 6 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 31 32 33 34 36 37 38 39 40 41 41 42 43 44 45 47 47 47 48 48 50 50 49 1 2 3 4 41 41...

Page 9: ...01144 Fuel Tube 1 12 301001145 Fuel Tube 1 13 301001146 Fuel Line Filter 1 14 301001147 Crankshaft Piston Shank 1 15 301001148 Washer 1 16 301001149 Carburetor Holder Assembly 1 17 321002119 Washer 1...

Page 10: ...ark Plug 1 38 301001157 Positive Stop Switch Cable 1 39 321002111 Ignition Coil Assembly 1 40 301001134 Throttle Lever 1 41 301001158 Screw 1 42 301001159 Screw 1 43 301001160 Bolt 1 44 321001163 Scre...

Page 11: ...ngine Cover Ignition 2S Battery Pack Stop Switch Self reset 3 5 Bullet Terminal lgnition Coil Spark Plug 3 5 Bullet Terminal Handle Engine Starter Switch Self reset RD VCC GND M M VCC VCC RD RD BK BK...

Page 12: ...rt 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 circuit from the PCB output to the motor connect...

Page 13: ...0 015 0 3 0 4 mm 7KH HQJLQH LV RRGHG Remove the spark 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...

Page 14: ...tor Poor contact between the high voltage line and the jump ring Amend Spark plug cap is broken Replace The motor runs the engine runs but the spark does QRW UH Short circuit occurs in the grounding l...

Page 15: ...rator nozzle Abnormal sound when starting the machine The motor idles the engine does not run and the blower does not start The spring in the gear wheel is broken and needs to be replaced The cranksha...

Page 16: ...ngine compression should be 0 6MPa 5RWDWH WKH ZUHQFK FORFNZLVH WR UHVWRUH WKH VSDUN SOXJ LJ Fig 2 Fig 1 Engine Compression See Figs 1 4 Low compression will cause erratic idling low power and hard sta...

Page 17: ...WKH DOXPLQXP SDUW Fig 6 Press the start button to check if the spark plug sparks KHFN WKH JDS EHWZHHQ WKH ZKHHO DQG WKH LJQLWLRQ FRLO 0DNH VXUH WKH JDS LV EHWZHHQ DQG 0 015 in 0 30 0 40 mm I WKH VSDUN...

Page 18: ...Q WKH SLFWXUH EHORZ RQ WKH RWKHU VLGH RI WKH blower Remove the engine cover Fig 10 NOTE When reinstalling the screws make sure that the long screws 4 and 5 are installed near the fuel tank and the eng...

Page 19: ...SDUWV DUH UHSODFHG LQ WKH H DFW RUGHU LQ which they were removed QVHUW WKH VWRS OLQH ZLWK VTXDUH KHDG LQWR WKH LJQLWLRQ FRLO 3ODFH WKH VSDFHU RQ WKH SRVLWLRQ VWXG 3XVK WKH VFUHZ WKURXJK WKH URXQG KHDG...

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Page 21: ...nd are longer than screw rod Insert hooks and RQWR ERWK VLGHV RI ZKHHO DV VKRZQ LQ LJ 0DNH VXUH WKH KRRNV DUH OHYHO DQG ZLWK WKH VDPH OHQJWK 7KHQ XVH D VSDQQHU WR URWDWH VFUHZ URG FORFNZLVH XQWLO WKH...

Page 22: ...RZ UDWH DQG DVVLVW WKH 7 VFUHZ WR DGMXVW WKH LGOH VSHHG VFUHZ DGMXVW WKH KLJK VSHHG RZ UDWH DQG PD LPXP QR ORDG VSHHG 7KH UHTXLUHPHQWV RI FDUEXUHWRU RZ UDWH NOTE QVSHFW WKH OWHU IRU GDPDJH DQG UHSODF...

Page 23: ...IXOO WKURWWOH UVW WXUQ WKH VFUHZ FORFNZLVH VOLJKWO with the carburetor adjustment tool and observe the RPM displayed on the tachometer to verify WKH FRUUHFW DGMXVWPHQW GLUHFWLRQ FORFNZLVH RU FRXQWHU...

Page 24: ...HHG FRXOG EH JUHDWHU WKDQ RU OHVV WKDQ 530 GMXVW WKH 7 VFUHZ I WKH PD VSHHG DGMXVWHG LQ SUHYLRXV VWHS LV JUHDWHU WKDQ 530 WXUQ WKH 7 VFUHZ FRXQWHU clockwise using the screwdriver Observe the RPM displ...

Page 25: ...DQG DLU OWHU 5HPRYH WKH VFUHZV DQG UHPRYH WKH DLU OWHU EDVH LJ 8QSOXJ WKH IXHO WXEHV ZLWK KDQGV RU SOLHUV 3 77 17 21 127 WR GDPDJH WKH WXEH IRU IXHO entering The black tube is for fuel entering The tr...

Page 26: ...carburetor Fig 36 QVHUW WKH VFUHZV WKURXJK WKH FDUEXUHWRU DQG WKH ZDVKHU LJ QVHUW WKH WKURWWOH URG LQWR WKH second hole on the carburetor as shown Fig 38 Then tighten the 2 screws QVHUW WKH WZR IXHO...

Page 27: ...ng The transparent is for fuel return The fuel tubes should be connected to the turning position correctly Do not damage or fold the fuel tubes Fig 43 8QSOXJ WKH WZR IXHO WXEHV LJ 7KH EODFN WXEH LV IR...

Page 28: ...HU QV DQG KRXVLQJV VKRXOG EH FKHFNHG SHULRGLFDOO DQG FOHDQHG WR KHOS SUHYHQW WKH HQJLQH IURP RYHUKHDWLQJ KHFN WKH F OLQGHU H KDXVW SLVWRQ DQG SLVWRQ ULQJ IRU FDUERQ EXLOG XS NOTE Do not allow the carb...

Page 29: ...nt 5HPRYH WKH VFUHZV LGHQWL HG LQ LJ DQG WKHQ UHPRYH WKH FRYHU RI WKH KDQGOH 5HPRYH WKH WKURWWOH OHYHU LJ NOTE When re assembling the throttle lever make sure the position hole on the throttle lever i...

Page 30: ...KH HOHFWULF VWDUWHU FRYHU SODWH OZD V SXOO JHQWO DIWHU DVVHPEO WR ensure that terminals of the LED cable are connected securely 5H DVVHPEOH WKH KDQGOH DVVHPEO LQ WKH H DFW RUGHU LQ ZKLFK LW ZDV UHPRYH...

Page 31: ...U 5HPRYH WKH VHOI WDSLQJ VFUHZV RQ WKH HQJLQH PRXQW FRYHU 8QWLJKWHQ WKH nut to remove the blower tube Fig 51 5HPRYH WKH QXW DQG ZDVKHU XVLQJ D VRFNHW ZUHQFK 5HPRYH WKH LPSHOOHU LJ 5HPRYH WKH QXWV RQ W...

Page 32: ...H DFW RUGHU LQ which they were removed KHFN WKH JHDU DQG JHDU VSULQJ IRU ZHDU DQG HQVXUH WKDW WKH DUH LQ JRRG ZRUNLQJ FRQGLWLRQ I the gear is broken replace it Fig 56 Remove the ratchet wheel Check t...

Page 33: ...33 KHFN LI WKH SDZO DVVHPEO LV LQ JRRG FRQGLWLRQ I QRW UHSODFH ZLWK D QHZ SDZO DVVHPEO LJ Fig 58 THROTTLE AND STARTER SYSTEM Pawl Assembly...

Page 34: ...n this occurs release the start button and press it again to re start the electric motor During the starting process the LED will indicate the battery voltage as below if there is no alarm indicator T...

Page 35: ...PHWDO PDJQHWL HG RQ WKH ZKHHO E If the battery indicator LED is continuously on check if an open circuit has occurred from the PCB output to the motor connecting line When pressing the start button an...

Page 36: ...ic motor and the motor drive lines as illustrated above 7KH EDWWHU LQGLFDWRU DVKLQJ UHG DQG JUHHQ DOWHUQDWLYHO LQGLFDWHV DQ RYHUFXUUHQW LQ WKH HOHFWULF starter Check if the engine is stuck and cannot...

Page 37: ...between the wiring harness of the engine and the LJQLWLRQ FRLO 2 An open circuit in in the connection position between the wiring harness of the engine part and WKH HQJLQH FRYHU 3 There is a loose or...

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Page 39: ...y 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 mainta...

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