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EGO LM2020E-SP Repair Manual Line

Blade replacement
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REPAIR GUIDELINE
PART 1: Blade Replacement - LM2020E-SP Lawn Mower

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Summary of Contents for EGO LM2020E-SP

  • Page 1 REPAIR GUIDELINE PART 1: Blade Replacement - LM2020E-SP Lawn Mower...
  • Page 2 Table of Contents LM2020E-SP Lawn Mower Contents Page Blade Removal Blade Installation...
  • Page 3 1. Blade Removal LM2020E-SP Lawn Mower 1. Release switches and remove the battery pack from the mower. 2. Wear protective gloves, turn the mower on its side (Fig. 1). 3. Place a metal rod (e.g., a screwdriver) with a diameter less than 9 mm into the fixing hole to act as a stabilizer and place another metal rod (e.g., a long bit) with a diameter between 5 - 6.35mm...
  • Page 4 1. Blade Removal LM2020E-SP Lawn Mower Use a 14 mm wrench to turn the blade bolt counterclockwise to loosen it. Stabilizer Another Stabilizer Loosen...
  • Page 5 1. Blade Removal LM2020E-SP Lawn Mower 5. Remove the bolt, washer and the blade. Replace any broken or worn parts. 6. Remove the motor bushing and fan from the motor shaft, then replace any broken or worn parts. Description Part Number Qty.
  • Page 6 2. Blade Installation LM2020E-SP Lawn Mower 1. Fix the motor bushing into the fan. 2. Mount the fan and the motor bushing onto the motor shaft with the fan blades towards the Fan blades towards deck deck. motor bushing Motor shaft...
  • Page 7 2. Blade Installation LM2020E-SP Lawn Mower Flat position 3. Mount the blade onto the inner flange with the surface which contains characters facing outwards (Fig. 1) . 4. Aligning the flat position of the outer flange with the corresponding flat position on the motor shaft, mount the outer flange in place (Fig.
  • Page 8 2. Blade Installation LM2020E-SP Lawn Mower 5. Fix the bolt into the shaft and pre-tighten it in a clockwise direction by hand. Out flange Pre-tighten by hand Bolt...
  • Page 9 2. Blade Installation LM2020E-SP Lawn Mower 6. Turn the blade by hand to align the holes in the blade with the holes in the inner flange(Fig. 1). 7. Place a metal rod (e.g., a long bit) with a diameter less than 6.35 mm into the aligning hole to act as a stabilizer.
  • Page 10 REPAIR GUIDELINE PART 2: Side Discharge Door Replacement_LM2020E-SP Lawn Mower...
  • Page 11 Side Discharge Door Replacement LM2020E-SP Lawn Mower Side discharge door Description Part Number Side Discharge Door 2824255002...
  • Page 12 Side Discharge Door Replacement LM2020E-SP Lawn Mower 1. Turn the mower on its back and remove the hexagon socket screws from the mower deck. 2. Take down the side discharge chute assembly from the mower deck. 3. If the side discharge chute is broken down, replace it with a new one.
  • Page 13 Side Discharge Door Replacement LM2020E-SP Lawn Mower 4. Mount the side discharge chute assembly onto the mower deck by tightening two hexagon screw. THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 14 REPAIR GUIDELINE PART 3.1: Parts in Power Unit Replacement_LM2020E-SP Lawn Mower...
  • Page 15 Table of Contents LM2020E-SP Lawn Mower Contents Page Power Unit Removal Motor Assembly Replacement 10-18 Main PCBA Replacement 19-31 Power Unit Assembly 32-38 Handle Position Switch Replacement...
  • Page 16 1. Power Unit Removal LM2020E-SP Lawn Mower 1. Turn the mower on its side and remove the blade, fan and motor bushing from the motor shaft. Another Stabilizer Stabilizer Loosen...
  • Page 17 1. Power Unit Removal LM2020E-SP Lawn Mower 2. Loosen the 4 hexagon head bolts with a socket wrench (S=10mm). WARNING: During this process, there is a risk of the power unit dropping. The power unit must be supported. Loosen Bolt and Washer Set...
  • Page 18 1. Power Unit Removal LM2020E-SP Lawn Mower 3. Before replacing or maintaining parts in power unit, fold the handle to the operation position to remove the service cover and motor top cover assembly from the mower. WARNING: Lift the power unit up with your hand for convenient disassembly when removing the screws marked in blue in following picture.
  • Page 19 1. Power Unit Removal LM2020E-SP Lawn Mower The following parts can be replaced only when the service cover is removed from the mower. Description Part Number DC Motor 2730252001 Main PCB Assembly 2830176002 Self-propelled Motor & Gear Assembly 2826577002 Self-propelled PCBA...
  • Page 20 1. Power Unit Removal LM2020E-SP Lawn Mower 4. Separate the power unit from the mower by disconnecting the wires linking with the main switch, microswitch, handle position switch, self-propelled PCB and switch. Linked with main switch and handle position switch...
  • Page 21 1. Power Unit Removal LM2020E-SP Lawn Mower Linked with self- Linked with propelled switch microswitch Linked with self-propelled PCB...
  • Page 22 1. Power Unit Removal LM2020E-SP Lawn Mower Remove the power unit from the mower. Power Unit...
  • Page 23 2. Motor Assembly Replacement LM2020SP Lawn Mower Open the battery cover ASSY and then loosen the 5 screws to remove the inner cover(Picture see next slide). Battery cover ASSY Inner cover Description Part Number Qty. Battery cover ASSY 2824902001 Inner cover 3127879001 Tapping screw 5610042014...
  • Page 24 2. Motor Assembly Replacement LM2020E-SP Lawn Mower...
  • Page 25 2. Motor Assembly Replacement LM2020E-SP Lawn Mower Remove the zip tie and disconnect the black connector. Black plug Zip tie...
  • Page 26 2. Motor Assembly Replacement LM2020E-SP Lawn Mower 3. Remove the 5 screws (2 deep in the battery box ) to separate the motor and base from the battery box. 2 screws deep in the battery box Tapping screw Battery box...
  • Page 27 2. Motor Assembly Replacement LM2020E-SP Lawn Mower Battery box ASSY Motor and its base Description Part Number Qty. DC Motor 2730252001 Base 2825644001...
  • Page 28 2. Motor Assembly Replacement LM2020E-SP Lawn Mower 4. Remove the 3 hex bolts, spring washers and plates with a socket wrench (S=10mm) to separate the motor from its base. Motor Motor base Bolt and Washer Set Description Part Number Qty.
  • Page 29 2. Motor Assembly Replacement LM2020E-SP Lawn Mower 5. To fit a new motor, align the locating notch on the motor with the locating pin on motor base to position the motor into place (Fig. 1). 6. Turn the motor shaft upside to fix the motor onto the motor base by tightening the 3 hex bolts (Fig.
  • Page 30 2. Motor Assembly Replacement LM2020E-SP Lawn Mower 7. Insert the motor into the battery with motor shaft upside and reverse the whole set to lock them using the inside 5 screws (2 screws deep in the battery box). 2 screws deep in...
  • Page 31 2. Motor Assembly Replacement LM2020E-SP Lawn Mower 8. Connect the black plug and tighten it with a zip tie. Black plug Black plug...
  • Page 32 3. Main PCBA Replacement LM2020E-SP Lawn Mower 1. Remove the motor as shown in previous steps. 2. Release the two plugs linked with main PCBA. 3. Remove the screw and plain washer as shown in the figure below. Description Part Number Qty.
  • Page 33 3. Main PCBA Replacement LM2020E-SP Lawn Mower 4. Remove the fuse set from the groove by disconnecting the yellow plug. If the fuse is damaged, replace with a new one. Yellow plug Fuse Fuse Description Part Number Qty. Fuse 2830216001...
  • Page 34 3. Main PCBA Replacement LM2020E-SP Lawn Mower 5. Reverse the battery box to cut off the zip tie and disconnect the long yellow plug (Fig.1). 6. Take the PCBA from the battery box and remove the 4 screws to separate the electric contact base from the battery box (Fig.2).
  • Page 35 3. Main PCBA Replacement LM2020E-SP Lawn Mower 7. Separate the PCBA from the electric contact base. Description Part Number Qty. Electric contact base 3126782001 Electric contact base...
  • Page 36 3. Main PCBA Replacement LM2020E-SP Lawn Mower 8. Main PCBA and the electric contact base set are as following pictures show. Electric assembly Main PCBA Sliding block Release button Spring Electric contact base Description Part Number Qty. Description Part Number Qty.
  • Page 37 3. Main PCBA Replacement LM2020E-SP Lawn Mower 9. Assemble the release button, sliding block and spring onto the electric contact base.
  • Page 38 3. Main PCBA Replacement LM2020E-SP Lawn Mower 10. Mount the electric contact of the PCBA onto the electric contact base . NOTICE: Hold the electrical contact base set tightly to stabilize the unit. Front view Electric contact of PCBA Rear view...
  • Page 39 3. Main PCBA Replacement LM2020E-SP Lawn Mower 11. Mount them into the battery box. Fix them by tightening the 4 screws (Fig. 1). 12. Pass the three wires and wire harness through the hook on the PCBA as Fig. 2 shown.
  • Page 40 3. Main PCBA Replacement LM2020E-SP Lawn Mower 13. Aligning the notch on the PCB board with the locating pin on the battery box, fix the PCB board by tightening the screw with the plain washer (Fig. 1). 14. Connect the two black plugs (Fig. 2).
  • Page 41 3. Main PCBA Replacement LM2020E-SP Lawn Mower 15. From the back side, pass the five wires through the corner and hook them into the groove in the corner.
  • Page 42 3. Main PCBA Replacement LM2020E-SP Lawn Mower 16. Use a zip tie to fix the wires. Cut the excess using diagonal pliers. 17. Insert the long yellow plug into its socket. Zip tie Long yellow plug...
  • Page 43 3. Main PCBA Replacement LM2020E-SP Lawn Mower 18. Reverse the battery box to align the fuse with its wire in the groove and insert the fuse plug. The fuse should be facing downwards.
  • Page 44 3. Main PCBA Replacement LM2020E-SP Lawn Mower 19. Mount the motor into the battery box as “Motor Assembly Replacement” part show. 20. Close the inner cover by locking the 5 screws.
  • Page 45 4. Power Unit Assembly LM2020E-SP Lawn Mower 1. Mount the reassembled power unit onto the mower. 5 wires should be exposed. Linked to microswitch Linked to self- propelled switch Linked to main switch and Linked to self-propelled PCB handle position switch...
  • Page 46 4. Power Unit Assembly LM2020E-SP Lawn Mower 2. Insert the 5 plugs into the corresponding sockets.
  • Page 47 4. Power Unit Assembly LM2020E-SP Lawn Mower 3. Align the wires linked to self-propelled switch into the grooves. 4. Align the wires linked to micro switch as below.
  • Page 48 4. Power Unit Assembly LM2020E-SP Lawn Mower 5. Align the wires linked to main switch and handle position switch into the grooves. 6. Align the wires linked to self-propelled PCB into the grooves.
  • Page 49 4. Power Unit Assembly LM2020E-SP Lawn Mower 7. Align the other wires into the grooves.
  • Page 50 4. Power Unit Assembly LM2020E-SP Lawn Mower 8. Turn the mower on its back. In this way, the power unit can be located stably on the mower without dropping. 9. Tighten the 4 hexagon head bolts with a socket wrench (S=10mm) to fix the power unit.
  • Page 51 4. Power Unit Assembly LM2020E-SP Lawn Mower 10. Close the service cover and motor top cover. Motor top cover Service cover...
  • Page 52 5. Handle Position Switch Replacement LM2020E-SP Lawn Mower 1. If the handle position switch is broken, during the process of assembling power unit onto the mower, replace it with a new one. 2. Reconnect the switch with wires by soldering.
  • Page 53 REPAIR GUIDELINE PART 3.2: LED LIGHT ASSEMBLY_LM2020E-SP Lawn Mower...
  • Page 54 Table of Contents LM2020E-SP Lawn Mower Contents Page LED Headlights Replacement 3-14...
  • Page 55 2. LED Headlights Replacement LM2020E-SP Lawn Mower 1. Loosen the screw counterclockwise to disassemble the cover from the battery box. Loosen the screw...
  • Page 56 2. LED Headlights Replacement LM2020E-SP Lawn Mower 2. Disconnect the connector to remove the LED cover assy. If the LED cover assy is damaged, replace it. Connector Description Part Number Qty. LED cover assy 2825833001...
  • Page 57 2. LED Headlights Replacement LM2020E-SP Lawn Mower 3. Remove the screw (red circle indication) to separate the coupled decorative covers.
  • Page 58 2. LED Headlights Replacement LM2020E-SP Lawn Mower 4. Remove the left and right decorative covers using screwdriver. Decorative Cover ASSY If the decorative covers are damaged, replace them. Description Part Number Qty. Decorative Cover ASSY 3900068001...
  • Page 59 2. LED Headlights Replacement LM2020E-SP Lawn Mower 5. Disconnect the connector linking the fuse. Connector...
  • Page 60 2. LED Headlights Replacement LM2020E-SP Lawn Mower 6. Remove the 2 screws to separate the front decorative cover. Description Part Number Qty. Tapping screw 5610042014...
  • Page 61 2. LED Headlights Replacement LM2020E-SP Lawn Mower 7. Remove the LED headlights and separate the reflectors from the electric assembly. Electric assembly Left Transparent Cap ASSY Description Part Number Qty. Right Electric assembly 2830182001 Transparent Cap ASSY Left Transparent Cap ASSY...
  • Page 62 2. LED Headlights Replacement LM2020E-SP Lawn Mower 8. Assemble the new LED headlights onto the battery box and align the wires into the grooves. Right LED headlight Left LED headlight Wire alignments Wire alignments...
  • Page 63 2. LED Headlights Replacement LM2020E-SP Lawn Mower 9. Connect the connector linking the fuse.
  • Page 64 2. LED Headlights Replacement LM2020E-SP Lawn Mower 10. Mount the LED light onto the groove to fix the electric assembly on the cover. Groove LED light...
  • Page 65 2. LED Headlights Replacement LM2020E-SP Lawn Mower 11. Insert the electric assembly through the hole and connect the connector.
  • Page 66 2. LED Headlights Replacement LM2020E-SP Lawn Mower 12. Assemble the cover with the battery box and fix it with screw. tighten the screw THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 67 REPAIR GUIDELINE PART 3.3: BATTERY COVER ASSEMBLY_LM2020E-SP Lawn Mower...
  • Page 68 Battery Cover Assembly Replacement LM2020E-SP Lawn Mower The battery cover consists of the transparent guard and the battery cover itself. Shaft Description Part Number E-clip Battery Cover ASSY 2824902001 Transparent guard 3127900001 Shaft 5670380001 E-clip 5660003003 Battery cover Transparent guard...
  • Page 69 Battery Cover Assembly Replacement LM2020E-SP Lawn Mower 1. Remove the screw to open the LED film switch button cover. 2. Remove the E-clip from the shaft. E-ring LED film switch cover...
  • Page 70 Battery Cover Assembly Replacement LM2020E-SP Lawn Mower 3. Draw the shaft out from the battery cover assembly by using a thin rod. 4. Replace with a new battery cover set; Fix the new one to the battery box in reverse order.
  • Page 71 REPAIR GUIDELINE PART 4: Rear Cover Replacement_LM2020E-SP Lawn Mower...
  • Page 72 Rear Cover Replacement LM2020E-SP Lawn Mower Rear Cover Description Part Number Qty. Rear Cover 3127944001...
  • Page 73 Rear Cover Replacement LM2020E-SP Lawn Mower 1. Remove both decorative cover with six tapping screws.
  • Page 74 Rear Cover Replacement LM2020E-SP Lawn Mower 2. Remove the E-ring from the left side of the shaft using a flat head screwdriver. 3. Pull out the shaft from left side by hand from the left side of the shaft. E-ring...
  • Page 75 Rear Cover Replacement LM2020E-SP Lawn Mower 4. Take down the rear cover and shaft. Description Part Number Qty. Shaft 5670457001 E-ring 5660139002...
  • Page 76 Rear Cover Replacement LM2020E-SP Lawn Mower 5. Remove the spring from the rear cover. 6. Replace with a new rear cover or torsion spring. Remove Description Part Number Qty. Torsion Spring 3660559001...
  • Page 77 Rear Cover Replacement LM2020E-SP Lawn Mower 7. Insert the shorter foot of the torsion spring into the groove of rear cover. Insert...
  • Page 78 Rear Cover Replacement LM2020E-SP Lawn Mower 8. Position the rear cover and torsion spring assembly onto the deck. The foot of the spring should be in the deck groove. Rear cover...
  • Page 79 Rear Cover Replacement LM2020E-SP Lawn Mower 9. Insert the shaft both through the hole on the mower and the torsion spring, and push it into position. 10. Lift up the rear cover to check if it can rotate around the shaft smoothly. If it works well, mount the E-ring onto the shaft.
  • Page 80 Rear Cover Replacement LM2020E-SP Lawn Mower 11. Lock the both decorative cover with six tapping screws. THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 81 REPAIR GUIDELINE PART 5: TOP HANDLE & SWITCH BOX COVER_LM2020E-SP Lawn Mower...
  • Page 82 Table of Contents LM2020E-SP Lawn Mower Contents Page Opening the Switch Box Cover The Safety Button Replacement 7-10 The Main Switch Set(Lever/Trigger) Replacement 11-13 The Top Handle Replacement The Top & Bottom Switch Box Cover Replacement The Main Switch/Self-propelled Switch/Speed-adjusting PCB...
  • Page 83 Top Handle & Parts in Switch Box Cover Replacement LM2020E-SP Lawn Mower When opening the switch box covers, the following relevant parts can be replaced: Description Part Number Main Switch 4870566001 Main Switch Trigger 3127908001 Main Switch Lever 2824118001 Self-propelled Switch...
  • Page 84 1. Opening the Switch Box Cover LM2020E-SP Lawn Mower 1. With the handle locked in the operating position, remove the 4 bolts. The 4 bolts are separately fixed by one hexagon nut on the reverse. Hexagon Description Part Number Qty.
  • Page 85 1. Opening the Switch Box Cover LM2020E-SP Lawn Mower 2. Fold the handle to the grass bag removal position(Fig. 1). 3. Remove the 8 tapping screws from the housing(Fig. 2). NOTICE: During this process, keep holding the top switch box cover with one hand to prevent dropping.
  • Page 86 1. Opening the Switch Box Cover LM2020E-SP Lawn Mower 4. Hold the top switch box cover with one hand and remove bottom switch box cover gently with the other hand. Replace any damaged parts accordingly. Top Switch Box Cover Main Switch...
  • Page 87 2. The Safety Button Replacement LM2020E-SP Lawn Mower 1. Remove the spring, screw, plain washer, switch actuator and safety button. Switch Actuator Screw Washer Spring Safe Button Description Part Number Qty. Description Part Number Qty. Spring 3660011002 Switch Actuator 3127905001...
  • Page 88 2. The Safety Button Replacement LM2020E-SP Lawn Mower Place the new safety button into the mounting slot. Align the actuator slot with the buttons highest rib (Fig. 1). Button Higher Rib Actuator Slot Mounting Slot...
  • Page 89 2. The Safety Button Replacement LM2020E-SP Lawn Mower Place the plain washer onto the actuator and tighten it with a screw (Fig. 1). Locate the actuator between the main switch and the housing (Fig. 2) .
  • Page 90 2. The Safety Button Replacement LM2020E-SP Lawn Mower 6. Place the spring onto the actuator and make sure it is securely located(Fig. 1). 7. Close the switch box cover as steps in following “Close the Switch Box Cover” part show.
  • Page 91 3. The Main Switch Set(Lever/Trigger) Replacement LM2020E-SP Lawn Mower 1. Loosen the 2 screws . Remove the clamp, spring and switch lever set. 2. Replace with a new switch lever or trigger if any distortion or malfunction appears. Clamp Main Switch Lever...
  • Page 92 3. The Main Switch Set(Lever/Trigger) Replacement LM2020E-SP Lawn Mower 3. Mount the switch trigger to the switch lever. NOTICE：The flat position on the lever should be fixed as the fig. 3 show. Flat Position Here...
  • Page 93 3. The Main Switch Set(Lever/Trigger) Replacement LM2020E-SP Lawn Mower 4. Put the spring into the hole. Mount the main switch set onto the spring with the hook outside the spring(Fig. 1). 5. Align the clamp slot with the locating rib on the housing(Fig. 2).
  • Page 94 4. The Top Handle Replacement LM2020E-SP Lawn Mower 1. Pull the top handle, removing the handle from the plastic bushings in the aluminum tubes. 2. Replace with a new one if it appears worn or broken. 3. Insert the two sides into the plastic bushings and press them into place.
  • Page 95 5. To Replace the Top & Bottom Switch Box Cover LM2020E-SP Lawn Mower 1. Remove all the switches as well as their cables from the top switch box cover; 2. Remove the main switch lever and self-propelled lever from the top switch box cover;...
  • Page 96 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB LM2020E-SP Lawn Mower 1. Remove the main switch, self-propelled switch and speed adjustment PCB assembly from the top switch box cover. Replace the damaged part accordingly. Speed Adjustment PCB Main Switch Self-propelled Switch...
  • Page 97 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB LM2020E-SP Lawn Mower ① IF the main switch is broken, disconnect it from the wires and replace with a new one by resoldering. NOTICE: Note the soldering sequence as following picture show. 2- Black & black...
  • Page 98 6. The Main Switch/Self-propelled Switch/Speed-adjusting PCB ② If the Self-propelled switch is broken, disconnect it from the wires and replace with a new one by resoldering. NOTICE: Note the soldering sequence as following picture show. White- NO Black- NC Pink- COM...
  • Page 99 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB ③ IF the speed-adjusting PCB is broken, disconnect it from the wires and replace with a new one by resoldering. ④ If the speed-adjusting knob is also broken, replace it with a new one. NOTICE: Mind soldering sequence as Fig.
  • Page 100 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB 2. Test ① Test the main switch: • Insert a fully charged battery pack into the battery case. • Adjust the handle to the operating position and fully extend the side rails and lock with the side clamps.
  • Page 101 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB 3. Align the bellows into the housing groove with at least five threads located in (Fig. 1) . 4. Align the self-propelled speed-adjusting PCB wires into the grooves (Fig. 2). At least 5 threads of the bellows located in the housing groove...
  • Page 102 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB 5. Align the wires of the main switch and self-propelled switch into the groove and place the main switch into the holder following figures below.
  • Page 103 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB 6. Align the self-propelled lever into the top switch box cover. ① First place the spring onto the self-propelled lever. Description Part Number Qty. Spring 3660562001 Self-propelled Switch Lever 3127928001...
  • Page 104 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB ② Align the self-propelled lever into the grooves on the top switch box cover. Spring Position...
  • Page 105 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB 7. Align the self-propelled speed-adjusting PCB and knob set into the housing hole correctly. ① Assemble the self-propelled speed-adjusting knob to the PCB initially. ② Mount the PCB and knob set into the place correctly.
  • Page 106 6. The Main Switch/Self-propelled Switch/Speed- adjusting PCB NOTICE: If the self-propelled speed-adjusting PCB has been inserted into the groove incorrectly, the knob can’t be put into place meaning the cover can’t be closed.
  • Page 107 7. Closing the Switch Box Cover LM2020E-SP Lawn Mower 1. Fully extend the side rails to mount the top switch box cover to the handle, making sure the ribs on the handle locate on the ribs on the switch box cover.
  • Page 108 7. Closing the Switch Box Cover LM2020E-SP Lawn Mower 2. Close the switch box set and fix them by tightening the 8 screws on the bottom switch box cover firstly and the 4 bolts on the top switch box cover to lock the cover set, making sure the...
  • Page 109 7. Closing the Switch Box Cover LM2020E-SP Lawn Mower THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 110 REPAIR GUIDELINE PART 6: HANDLE LOCKING CLAMP_LM2020E-SP Lawn Mower...
  • Page 111 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower Description Part Number Qty. Handle Locking 2823714002 Clamp Set...
  • Page 112 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower 1. Use a pin and a hammer to tap out the shaft carefully and remove the clamp, shaft and spring from the tube. Spring Clamp Shaft...
  • Page 113 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower 2. Move the handle downwards to take out the rubber pad and rubber base. 3. Replace the broken or worn parts. Rubber base Rubber pad Description Part Number Qty. Description Part Number Qty.
  • Page 114 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower 4. Put the rubber pad and rubber base into the recess with the rubber pad on the inside and the rubber base on the outside.
  • Page 115 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower 5. Insert the short foot of the spring into the hole in the clamp, then mount the clamp into the joint.
  • Page 116 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower 6. Insert the shaft and knock it with a hammer until the lower side is flush with the housing surface. 7. Test the clamp. The side rails should be locked stably by the two clamps. They should not retract...
  • Page 117 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower Description Part Number Picture Handle Locking Clamp Set 2823714002 THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 118 REPAIR GUIDELINE PART 7: LEFT/RIGHT BEAM HOUSING_LM2020E-SP Lawn Mower...
  • Page 119 Table of Contents LM2020E-SP Lawn Mower Contents Page Opening the Right Beam Housing Closing the Right Beam Housing 7-10 Opening the Left Beam Housing 11-12 Closing the Left Beam Housing 13-14 Replacing the Left/Right Inner Tube ASSY/Beam Tube 15-19...
  • Page 120 Left/Right Beam Housing Replacement LM2020E-SP Lawn Mower When opening the left/right beam housing, the following parts can be replaced: Left inner tube ASSY Left beam housing set Description Part Number Micro switch 4870500001 Beam tube Left beam housing set 2824427001...
  • Page 121 1. Opening the Right Beam Housing LM2020E-SP Lawn Mower 1. Remove the 8 tapping screws to open the right beam housing. NOTICE: The micro switch is located in the right beam housing. Right beam housing set Description Part Number Qty.
  • Page 122 1. Opening the Right Beam Housing LM2020E-SP Lawn Mower 2. Remove the top housing, rubber pad and rubber base, switch actuator and spring (fixed on the switch actuator). Switch actuator Spring Micro switch Top housing Rubber pad Rubber base Description Part Number Qty.
  • Page 123 1. Opening the Right Beam Housing LM2020E-SP Lawn Mower 3. Remove the micro switch and cable from the bottom housing. 4. Replace with a new switch if it malfunctions. 5. Test the micro switch. • Leave the trigger of the micro switch un-depressed. Turn on the mower, the mower should be turned on properly.
  • Page 124 2. Closing the Right Beam Housing LM2020E-SP Lawn Mower 1. Align the cable in the bottom housing; press the cable into place. 2. Align the locating hole with the locating pin on bottom housing, position the switch into place. Align the cable...
  • Page 125 2. Closing the Right Beam Housing LM2020E-SP Lawn Mower 3. Mount the bottom housing onto the side rail and beam tube. 4. Fully extend the side rail to make sure the dent on the rail appears in the opening of the outer tube.
  • Page 126 2. Closing the Right Beam Housing LM2020E-SP Lawn Mower 5. Fix the switch actuator into the bottom housing. Description Part Number Qty. Switch Actuator 3126768001 Locating pin into the This corner into the locating hole in housing outer tube Spring...
  • Page 127 2. Closing the Right Beam Housing LM2020E-SP Lawn Mower 6. Attach the rubber pad and base into the rectangle groove of the outer tube. 7. Close the top housing with the 8 tapping screws. Rectangle groove Rubber pad and base...
  • Page 128 3. Opening the Left Beam Housing LM2020E-SP Lawn Mower 1. Remove the 8 tapping screws to open the left beam housing. Right beam housing set...
  • Page 129 3. Opening the Left Beam Housing LM2020E-SP Lawn Mower 2. Separate the top and bottom housing, remove the bottom housing from the side rail and beam tube. 3. Replace the left beam housing set if they appear to be worn.
  • Page 130 4. Closing the Left Beam Housing LM2020E-SP Lawn Mower 1. Mount the top housing onto the side rail and beam tube. 2. Turn the handle to lock it in any of the operating positions.
  • Page 131 4. Closing the Left Beam Housing LM2020E-SP Lawn Mower 3. Position the rubber pad and rubber base into the groove of bottom housing, making sure the rubber pad pointing outside. 4. Close the bottom housing using screws. Rubber pad pointing...
  • Page 132 5. Replacing the Left/Right Inner Tube ASSY/Beam Tube LM2020E-SP Lawn Mower 1. Remove the switch box covers (see Part 5). 2. Pull the top handle and remove it from the plastic bushings in the two side aluminum tubes. 3. Remove the left/right beam housing (see page 3-6 and 11-12 in this guide)
  • Page 133 5. Replacing the Left/Right Inner Tube ASSY/Beam Tube LM2020E-SP Lawn Mower 4. Pull the left/right inner tube assembly from the outer tube. 5. Replace damaged tubes. Right inner tube ASSY Left inner tube ASSY Beam Tube Description Part Number Qty.
  • Page 134 5. Replacing the Left/Right Inner Tube ASSY/Beam Tube LM2020E-SP Lawn Mower 6. Insert the left/right tube assembly into the outer tube. The left and right inner tubes are not interchangeable. Opening in the plastic sleeve on right side Right inner tube ASSY...
  • Page 135 5. Replacing the Left/Right Inner Tube ASSY/Beam Tube LM2020E-SP Lawn Mower Right inner tube ASSY Left inner tube ASSY...
  • Page 136 5. Replacing the Left/Right Inner Tube ASSY/Beam Tube LM2020E-SP Lawn Mower 7. Close the left/right beam housing (see page 7-10 and 13-14 in this guide). 8. Mount the top hand and switch box covers back (See part 5). THE END...
  • Page 137 REPAIR GUIDELINE PART 8: QUICK ADJUSTING LEVER _LM2020E-SP Lawn Mower...
  • Page 138 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower Description Part Number Qty. Quick Adjusting Lever 2825244001...
  • Page 139 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 1. Remove the two decorative cover from the handle tube. In the inner side of the tube In the inner side of the side tube Description Part Number Qty. Tapping Screw 5610294001 Left decorative cover...
  • Page 140 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 2. Remove the E ring #1with a flat head screwdriver . Clamp ring Flat head screwdriver Description Part Number Qty. E Ring #1 5660003003...
  • Page 141 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 3. Press the lever to loosen the pin #1 and then draw it out. Draw the pin out Description Part Number Qty. Pin #1 3550048003 Press the pin...
  • Page 142 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 4. Remove the E ring #2 and draw the pin #2 out. 5. Remove the spring, adjusting lever and decorative cover from the side tube. Replace the damaged parts accordingly. Pin #2 E ring #2...
  • Page 143 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 6. If the right decorative cover is damaged, remove the motor top cover. Then disconnect all the plugs linked with the wire harness, cut the red-white wire and remove the handle position switch by soldering.
  • Page 144 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 8. Remove the two pins and E rings. Then pull out the connecting rod. Pin #1 + E ring #1 Connecting rod Pin #2 + E ring #2...
  • Page 145 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 9. Pull out the pin #3 and replace the damaged parts accordingly. Pin #3 Description Part Number Qty. Connecting Rod 2825245001 Pin #3 5670248001...
  • Page 146 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 10. Pass the adjusting lever through the left decorative cover. 11. Turn the pin #3 to align the hole in the pin #3 with the hole in adjust lever. 12. Place the pin #1 into the aligning hole and mount the E ring #1 into its place.
  • Page 147 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 13. Insert the pin 3# with adjust lever through the mower. 14. Move the handle to the vertical position. Pin 3#...
  • Page 148 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 15. Align the locking pin with the nut bushing. 16. Adjust the connecting rod to align the holes. Locking pin Nut bushing...
  • Page 149 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 17. Fully insert the pin #1 and lock the pin with the E ring #1 from the backside. 18. Turn the pin #3 to align the hole in the pin #3 with hole in the connecting rod. Then mount...
  • Page 150 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 19. Align the screw dome with the hole in the side tube, locking pin with the nut bushing and mount the decorative cover onto side tube. 20. Fix the spring between the adjusting lever and the side tube.
  • Page 151 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 21. Hold the tube and lever, depress the lever to align the hole in the lever with the hole in the plastic part. 22. Fully insert the pin and lock the pin with the E ring from the backside.
  • Page 152 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 23. Lock the both decorative cover with six tapping screws. 24. Test the lever function to check if it can lock the handle at different positions. THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 153 REPAIR GUIDELINE PART 9: Self-propelled PCBA and Unit Replacement_LM2020E-SP Lawn Mower...
  • Page 154 Table of Contents LM2020E-SP Lawn Mower Contents Page Self-propelled PCBA and Unit Replacement Preparation Self-propelled PCBA Replacement 5-10 Cutting-height Adjustment Set Replacement 11-20 Motor & Gear ASSY in Self-propelled Unit Replacement 21-24...
  • Page 155 1. Self-propelled PCBA and Unit Replacement Preparation LM2020E-SP Lawn Mower 1. Before replacing or maintaining the PCBA or parts in self-propelled unit, fold the handle to the operation position to remove the motor top cover from the mower. Motor top cover...
  • Page 156 1. Self-propelled PCBA and Unit Replacement Preparation 2. Test the motor voltage between the three wires by using a multimeter. If the motor is open-circuit, disassembling the self-propelled unit and replace the motor. a) Set the multimeter function to “Resistance measuring” . Self-propelled PCBA b) Measure the resistance between any of the two points.
  • Page 157 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 1. Disconnect the self-propelled PCBA from the power unit, switches and motor. Pull to Description Part Number Qty. release Self-propelled PCBA 2830540001 Press to release...
  • Page 158 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 2. Replace with a new PCBA. Linked with speed adjustment PCB Linked with power unit Linked with self-propelled motor by plugging Linked with main switch Soldered with self-propelled and handle position switch...
  • Page 159 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 3. Connect the new PCBA. Spot soldering Connect...
  • Page 160 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 4. Put the PCBA into its place and align the wires into the grooves. Step 1 Step 2 Put into groove Right sight view...
  • Page 161 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower Step 3 Step 4...
  • Page 162 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 5. Turn on the self-propelled trigger by pressing it. Then adjust its speed-control lever to test whether the PCBA is assembled correctly. 6. Close the motor top cover. Step 5 Self-propelled trigger Self-propelled speed-...
  • Page 163 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 1. Disconnect the yellow connector for linking the self-propelled PCBA with the self-propelled motor. 2. Turn the mower on its back then dismount the two rear wheel protective caps (see part 10) .
  • Page 164 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower remove the screws 1 # 、3 #、5# and 6#. 3. Adjust the cutting height to the position of 4 or higher, Then adjust the cutting height to the position of 2, remove the screws 2 # and 4 #.
  • Page 165 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower Screw1 # Screw3# 4 mm hexagon wrench The position of 4 Screw2 # Screw4 # 4 mm hexagon wrench The position of 2...
  • Page 166 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 4. Separate the connecting rod from rear axle by removing the prevailing torque hexagon nut 1 #. NOTICE: If the connecting rod does not work normally, remove nut 2# to separate connecting rod from the mower.
  • Page 167 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 5. Separate the connecting rod and self-propelled unit from the mower in turn. If the tension spring or connecting rod is damaged, replace with a new one. Rear axle set Cutting height adjustment set...
  • Page 168 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 6. Release the torsion spring away from the cutting-height adjustment set by using a screwdriver. Cutting-height adjustment Foot of the spring Description Part Number Qty. Torsion spring 3660750001...
  • Page 169 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 7. Bent the locking pin straight and draw the pin out using a pincher or other tools. 8. Swing the cutting-height adjustment set out Locking pin...
  • Page 170 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 9. Remove the screw to take down the cutting-height adjustment knob, replace the damaged parts. 10. Fix the cutting-height adjustment knob on the Height Adjusting Bar with the screw. Screw Cutting-height adjustment lever...
  • Page 171 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 11. Pass the cutting-height adjustment set through the tension spring and the two locating holes. NOTIC: The torsion spring should be mounted correctly between the two locating holes. Two feet of torsion...
  • Page 172 3. Cutting-height Adjustment Set Replacement LM2020E-SP Lawn Mower 12. Align the locking pin with the hole in cutting-height adjustment lever. Then bent the feet of the locking pin so that cutting-height adjustment set can be locked at the position. 13. Hook the tension spring on to the cutting-height adjustment lever.
  • Page 173 4. Motor & Gear ASSY in Self-propelled Unit Replacement LM2020E-SP Lawn Mower 1. Remove the 6 screws to separate the dust cover from the motor Hexagon Socket Screw Screw Description Part Number Qty. Hexagon Socket Screw 5620157006 Screw 5620033010...
  • Page 174 4. Motor & Gear ASSY in Self-propelled Unit Replacement LM2020E-SP Lawn Mower 2. If the support or dust cover is damaged, replace with a new one. Support Dust Cover Description Part Number Qty. Dust Cover 3900208001 Support 3130218001...
  • Page 175 4. Motor & Gear ASSY in Self-propelled Unit Replacement LM2020E-SP Lawn Mower 3. Remove the 2 screws to detach the motor & gear assy from the self-propelled unit. Plug Motor & Gaer ASSY Description Part Number Qty. Motor & Gear ASSY...
  • Page 176 4. Motor & Gear ASSY in Self-propelled Unit Replacement LM2020E-SP Lawn Mower 4. Replace with a new motor & gear assy and fix the motor assembly onto the self-propelled unit. THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 177 REPAIR GUIDELINE PART 10: Wheels Replacement_LM2020E-SP Lawn Mower...
  • Page 178 Table of Contents LM2020E-SP Lawn Mower Contents Page Rear Wheel Replacement Front Wheel Replacement 9-10...
  • Page 179 1. Rear Wheel Replacement LM2020E-SP Lawn Mower Gasket If the rear wheel is damaged, replace it. 1. Turn the mower on its back or side and separate the hubcap with a screwdriver. Hubcap Hex bolt Description Part Number Qty. Hubcap...
  • Page 180 1. Rear Wheel Replacement LM2020E-SP Lawn Mower 2. Remove the hex bolt using a socket wrench (S=13mm) to separate the wheel assembly from its protective cap, which is fixed on the self-propelled unit. Hex bolt Socket wrench (S=13mm) Wheel protective cap...
  • Page 181 1. Rear Wheel Replacement LM2020E-SP Lawn Mower Gasket 3. Remove the gear from the wheel assembly by loosening the 3 screws. 4. Replace with a new wheel assembly. Fix it onto the self-propelled unit in reverse order(Notice see next slide).
  • Page 182 1. Rear Wheel Replacement LM2020E-SP Lawn Mower Gasket NOTICE: During wheel reassembly, pay attention to which side of the gear faces the wheel. This side facing wheel This side facing protective cap...
  • Page 183 1. Rear Wheel Replacement LM2020E-SP Lawn Mower 5. If the wheel protective cap is broken, replace it with a new one. Gasket 6. Loosen the screw and remove it with its plain washer. Detach the wheel protective cap from the shaft as well as the wave washer.
  • Page 184 1. Rear Wheel Replacement LM2020E-SP Lawn Mower 7. Mount a new protective cap onto the self-propelled unit shaft as well as the wave washer. Fix the cap by tightening the screw with spring washer and plain washer. The recommended torque is 1.8-2.5Nm.
  • Page 185 2. Front Wheel Replacement LM2020E-SP Lawn Mower Gasket If the front wheel is damaged, replace it. 1. Separate the hubcap from the wheel and remove the hex bolt in the same way as the rear wheel. Front wheel Hubcap Description Part Number Qty.
  • Page 186 2. Front Wheel Replacement LM2020E-SP Lawn Mower Gasket 2. Replace with a new front wheel. 3. Mount it onto the shaft with the plain washer and wave washer beneath it. Plain washer Wave washer THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.
  • Page 187 REPAIR GUIDELINE PART 11:Decorative Cover & Front Axle Replacement_LM2020E-SP Lawn Mower...
  • Page 188 Table of Contents LM2020SP Lawn Mower Contents Page Decorative Cover Replacement Front Cover Set Replacement Front Axle Replacement 7-11...
  • Page 189 1. Decorative Cover Replacement LM2020E-SP Lawn Mower Gasket 1. Remove the blade(see Part 1). 2. Remove the power unit from the mower (see Part 3.1). 3. Turn the mower on its back to remove the 5 screws on the steel deck.
  • Page 190 1. Decorative Cover Replacement LM2020E-SP Lawn Mower 4. Remove the decorative cover from the mower. 5. If the decorative cover is damaged, replace it with a new one. Assemble the new one in reverse order. Decorative cover Description Part Number Qty.
  • Page 191 2. Front Cover Set Replacement LM2020E-SP Lawn Mower 1. Turn the mower on its back and remove the 5 screws to separate the lower front cover from the mower. Lower front cover Description Part Number Qty. Front Cover Set 2824527001...
  • Page 192 2. Front Cover Set Replacement LM2020E-SP Lawn Mower 2. Remove the 4 screws and take down the 2 mounting plates to separate the upper front cover from the mower. 3. If the front cover set is damaged, replace it with a new one. Assemble the front cover set in reverse order.
  • Page 193 3. Front Axle Replacement LM2020E-SP Lawn Mower 1. If the front axle is damaged, turn the mower on its back and remove the front cover set as previous show. Upper front cover Front axle Front cover set Lower front cover...
  • Page 194 3. Front Axle Replacement LM2020E-SP Lawn Mower 2. Remove the front wheel assembly (see part 10).
  • Page 195 3. Front Axle Replacement LM2020E-SP Lawn Mower 3. Separate the front axle from the mower by removing the prevailing torque hexagon nut on the joint. WARNING: Take care when performing this step. Connecting rod Prevailing torque hexagon nut Description Part Number Qty.
  • Page 196 3. Front Axle Replacement LM2020E-SP Lawn Mower 4. Remove the front axle from the mower. Front axle Description Part Number Qty. Front axle 2824348001...
  • Page 197 3. Front Axle Replacement LM2020E-SP Lawn Mower 5. Replace the broken front axle with a new one. 6. Assemble it in reverse order. THE END Upon continuous product improvement, please using the latest SBOM & Parts list to order spare parts if necessary.