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EGO LM2020E-SP Repair Manual Line
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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. Stop the motor and remove the battery pack from the mower. 2. Wear protective gloves, and turn the mower on its side for preparation (Fig. 1). 3. Place a metal rod (e.g., a screwdriver) with diameter less than 8 mm into the fixing hole to act as a stabilizer and place another metal rod (e.g., a long bit) with diameter less than 6.35 mm into the...
  • Page 4 1. Blade Removal LM2020E-SP Lawn Mower Use a S=14mm socket 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, outer flange and the blade. Replace any part, if broken or worn. 6. Remove the inner flange and fan from the motor shaft. Replace any part, if broken or worn.
  • Page 6 2. Blade Installation LM2020E-SP Lawn Mower 1. Install the inner flange into the fan. 2. Mount the fan and the inner flange onto the motor shaft with the fan blades towards the deck. Fan blades towards deck Inner flange Motor shaft...
  • Page 7 2. Blade Installation LM2020E-SP Lawn Mower Flat position 3. Mount the blade onto the inner flange with the surface stating “THIS SIDE FACING GRASS” facing outward (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. Mount the bolt into the shaft and pre-tighten it by hand. Outer 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 diameter less than 6.35 mm into the aligned 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 3127965001 Side Discharge Door ASSY 2824255002...
  • Page 12 Side Discharge Door Replacement LM2020E-SP Lawn Mower 1. Turn the mower on its back and remove the 2 screws from the mower deck. 2. Remove the side discharge door ASSY, including the shaft, spring and etc., from the mower deck. You can replace the whole ASSY or follow the below steps to replace only the side discharge door.
  • Page 13 Side Discharge Door Replacement LM2020E-SP Lawn Mower 3. Pull out the shaft from the right side of side discharge door (Fig. 1). Remove the torsion spring from the side discharge door (Fig. 2). Shaft Description Part Number Shaft 5670384001 Torsion Spring...
  • Page 14 Side Discharge Door Replacement LM2020E-SP Lawn Mower 5. Replace with a new side discharge door, torsion spring or bevel support. Bevel support Side discharge door Torsion spring Shaft Description Part Number Bevel Support 3705862001...
  • Page 15 Side Discharge Door Replacement LM2020E-SP Lawn Mower 6. Assemble the torsion spring, bevel support and shaft into the side discharge door cover following the figures below. Insert Align the holes Insert the shaft and pass through the spring...
  • Page 16 Side Discharge Door Replacement LM2020E-SP Lawn Mower 7. Mount the side discharge door ASSY onto the mower deck by tightening the 2 screws (Fig.1). 8. Lift the side discharge door up and down to test whether the door can rest on the mower deck closely and functions well.
  • Page 17 REPAIR GUIDELINE PART 3.1: Parts in Power Unit Replacement_LM2020E-SP Lawn Mower...
  • Page 18 Table of Contents LM2020E-SP Lawn Mower Contents Page Power Unit Removal Motor ASSY Replacement 9-16 Main PCBA Replacement 17-30 Power Unit Assembly 31-37 Handle Position Switch Replacement 38-39...
  • Page 19 1. Power Unit Removal LM2020E-SP Lawn Mower 1. Before replacing or maintaining parts in power unit or self-propelled unit, fold the handle to the operation position to remove the service cover and motor top cover from the mower. Service cover 1#...
  • Page 20 1. Power Unit Removal LM2020E-SP Lawn Mower Service Cover 1# Service Cover 2# 2. Turn the mower on its side and remove the blade, fan and inner flange from the Stabilizer 2# motor shaft as shown in “RG_Part 1_Blade Replacement_LM2020E- Stabilizer 1# SP.pptx”.
  • Page 21 1. Power Unit Removal LM2020E-SP Lawn Mower Loosen the 4 hexagon head bolts with a S=10mm socket wrench. WARNING: During this process, there is a risk of the power unit dropping. The power unit must be supported. Loosen Plat Spring...
  • Page 22 1. Power Unit Removal LM2020E-SP Lawn Mower Separate the power unit from the mower by disconnecting the plugs linked to the main switch, microswitch, self-propelled PCB. Linked to main switch/ handle position switch...
  • Page 23 1. Power Unit Removal LM2020E-SP Lawn Mower Linked to main switch Linked to microswitch Linked to self-propelled PCB...
  • Page 24 1. Power Unit Removal LM2020E-SP Lawn Mower Remove the power unit from the mower. Power Unit Description Part Number Power Unit 2824822009...
  • Page 25 2. Motor ASSY Replacement LM2020E-SP Lawn Mower Open the battery cover and support it, such as a screwdriver, and then loosen the 5 screws to remove the inner cover. Battery cover Inner cover...
  • Page 26 2. Motor ASSY Replacement LM2020E-SP Lawn Mower Remove the zip tie and disconnect the black plug. Black plug Zip tie...
  • Page 27 2. Motor ASSY 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 Battery box...
  • Page 28 2. Motor ASSY Replacement LM2020E-SP Lawn Mower Motor and its base Battery box with PCBA in Description Part Number Motor 2730252001...
  • Page 29 2. Motor ASSY Replacement LM2020E-SP Lawn Mower 4. Remove the 3 hex bolts, spring washers and plates using a S=10mm socket wrench to separate the motor from its base. Motor Motor base Combined bolt REMARK: The set of 1pc plate, 1pc spring washer and 1pc hex bolt will be replaced with 1pc combined bolt, supplied as one part#.
  • Page 30 2. Motor ASSY 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 31 2. Motor ASSY Replacement LM2020E-SP Lawn Mower 7. Insert the motor into the battery box with motor shaft upside. 8. Fasten the motor using the inside 5 screws (2 screws deep in the battery box, in reverse order of disassembly).
  • Page 32 2. Motor ASSY Replacement LM2020E-SP Lawn Mower 9. Connect the black plug and tighten it with a zip tie. Black plug Zip-tie...
  • Page 33 3. Main PCBA Replacement LM2020E-SP Lawn Mower 1. Before having PCBA replacement, test the fuse whether it works well. The fuse can be directly be measured by simply removing the inner cover of the battery box. 2. If the fuse is broken, replace it (see next slide) and restart the mower to see whether the mower can work correctly.
  • Page 34 3. Main PCBA Replacement LM2020E-SP Lawn Mower 3. Remove the fuse from its groove and disconnect the yellow plug. Have the fuse replacement. Yellow plug Fuse Description Part Number Fuse 2830216001...
  • Page 35 3. Main PCBA Replacement LM2020E-SP Lawn Mower 4. Remove the motor ASSY as shown in previous sections ” Power Unit Removal” and “Motor ASSY Replacement”. 5. Release the two black plugs(one is linked to LED lights, and the other is linked to the power indicator)(Fig.
  • Page 36 3. Main PCBA Replacement LM2020E-SP Lawn Mower 7. Reverse the battery box to cut off the zip tie and disconnect the long yellow plug (Fig.1). 8. 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 37 3. Main PCBA Replacement LM2020E-SP Lawn Mower 9. Separate the PCBA from the electric contact base. Electric contact base Electric contact of the PCBA...
  • Page 38 3. Main PCBA Replacement LM2020E-SP Lawn Mower 10. Main PCBA, electric contact of the PCBA and electric contact base are shown as below. If any part is damaged or missing, replace it as needed. Main PCBA Sliding block Release button...
  • Page 39 3. Main PCBA Replacement LM2020E-SP Lawn Mower 11. Replace with a new PCBA. 12. Assemble the release button, sliding block and spring onto the electric contact base.
  • Page 40 3. Main PCBA Replacement LM2020E-SP Lawn Mower 13. Mount the electric contact of the PCBA onto the electric contact base . NOTICE: Hold the 2 components tightly to insert them in the battery box. Front view Electric contact of PCBA...
  • Page 41 3. Main PCBA Replacement LM2020E-SP Lawn Mower 14. Mount them into the battery box. Fix them by tightening the 4 screws (Fig. 1). 15. Pass the three wires and wire harness through the hook on the PCBA as Fig. 2 shown.
  • Page 42 3. Main PCBA Replacement LM2020E-SP Lawn Mower 16. 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). 17. Connect the two black plugs (Fig. 2).
  • Page 43 3. Main PCBA Replacement LM2020E-SP Lawn Mower 18. From the battery box back, pass the 5 wires(3 from the PCBA and 2 from the electric contact of the PCBA) through the corner and hook them into the groove in the corner.
  • Page 44 3. Main PCBA Replacement LM2020E-SP Lawn Mower 19. Use a zip tie to fix the wires. Cut the excess tie using Diagonal pliers. 20. Insert the long yellow plugs. Zip tie Long yellow plug...
  • Page 45 3. Main PCBA Replacement LM2020E-SP Lawn Mower 21. Reverse the battery box to align the fuse with its wire into the groove (Fig.1) and connect the fuse by plugging. The fuse should be facing downwards (Fig. 2).
  • Page 46 3. Main PCBA Replacement LM2020E-SP Lawn Mower 22. Mount the motor ASSY back into the battery box as “Motor ASSY Replacement” part shown. 23. Close the inner cover by locking the 5 screws.
  • Page 47 4. Power Unit Assembly LM2020E-SP Lawn Mower 1. Mount the reassembled power unit onto the mower. There are 5 plugs outside the power unit. Linked to microswitch Linked to main switch Linked to main switch/ Linked to self-propelled PCB handle position switch...
  • Page 48 4. Power Unit Assembly LM2020E-SP Lawn Mower 2. Insert the 5 plugs into the corresponding sockets. NOTICE: If the handle position switch is pulled out accidentally, refer to the last slide for reassembly.
  • Page 49 4. Power Unit Assembly LM2020E-SP Lawn Mower 3. Align the wires with plug linked to main switch into the grooves (Fig. 1). 4. Align the wires with plug linked to microswitch into the grooves (Fig. 2).
  • Page 50 4. Power Unit Assembly LM2020E-SP Lawn Mower 5. Align the wires with plug linked to main switch/handle position switch in the grooves (Fig. 1). 6. Align the wires with small black plug linked to self-propelled PCB into the grooves (Fig. 2).
  • Page 51 4. Power Unit Assembly LM2020E-SP Lawn Mower 7. Align the wires with bigger black plug linked to self-propelled PCB into the grooves.
  • Page 52 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 hex bolts with a S=10mm socket wrench to fix the power unit.
  • Page 53 4. Power Unit Assembly LM2020E-SP Lawn Mower 10. Close the 2 service covers. Service cover 2# Service cover 1#...
  • Page 54 5. Handle Position Switch Replacement LM2020E-SP Lawn Mower 1. After removing the service cover 2#, you can see the handle position switch. 2. Pull the switch from its locating slot, use Scissors to remove the shrink sleeves from the joints and then disconnect the switch from the wires (solder).
  • Page 55 5. Handle Position Switch Replacement LM2020E-SP Lawn Mower 5. Place the handle position switch into the locating slot with the joint linked to 3 wires facing upwards. Tip: During this mounting step, you should lift the handle with your one hand from around vertical position, slowly to any operating position while the other hand presses the switch until the plastic part (Switch Actuator) is against the switch.
  • Page 56 REPAIR GUIDELINE PART 3.2: LED LIGHT REPLACEMENT_LM2020E-SP Lawn Mower...
  • Page 57 Table of Contents LM2020E-SP Lawn Mower Contents Page Film Switch Replacement 3-11 LED Headlights Replacement 12-19...
  • Page 58 1. Film Switch Replacement LM2020E-SP Lawn Mower 1. Loosen the screw counterclockwise to disassemble the film switch cover from the battery box. Loosen the screw Loosen the screw Film Switch Cover ASSY...
  • Page 59 1. Film Switch Replacement LM2020E-SP Lawn Mower Open the battery cover and support it, such as a screwdriver, and then loosen the 5 screws to remove the inner cover. Battery cover...
  • Page 60 1. Film Switch Replacement LM2020E-SP Lawn Mower 3. Disconnect the bigger plug with 6 pins which is connected the film switch to the main PCBA. 4. Remove the film switch cover ASSY thoroughly from the power unit. 5. For easy maintenance, you can directly replace the film switch cover ASSY and reassemble them following below step 12-14 in section”...
  • Page 61 1. Film Switch Replacement LM2020E-SP Lawn Mower 6. Film switch or lamp PCB replacement please follow below steps. 7. Pull the film switch from the lamp PCB. PULL Lamp PCB Description Part Number 2830186001 Lamp PCB...
  • Page 62 1. Film Switch Replacement LM2020E-SP Lawn Mower 8. Remove the film switch from the cover and have a new film switch replacement. Film switch Description Part Number Film Switch 4870558002...
  • Page 63 1. Film Switch Replacement LM2020E-SP Lawn Mower 9. Pass the plug through the cover and tape the new film switch onto the cover correctly (Fig.1). 10. Connect the film switch to the lamp PCB (Fig. 2).
  • Page 64 1. Film Switch Replacement LM2020E-SP Lawn Mower 11. Mount the indicator, which is located on the lamp PCB, NOT SEPARATED, into the groove of the cover to fix the lamp PCB on the cover closely. Groove Indicator Lamp PCB...
  • Page 65 1. Film Switch Replacement LM2020E-SP Lawn Mower 12. Insert the lamp PCB’s plug through the corresponding hole in the battery box and connect it with the main PCBA. Plug Connected...
  • Page 66 1. Film Switch Replacement LM2020E-SP Lawn Mower 13. Close the inner cover of the battery box (Fig. 1). 14. Close the film switch cover ASSY and fix it with the screw (Fig. 2). Battery cover Tighten the screw...
  • Page 67 2. LED Headlights Replacement LM2020E-SP Lawn Mower 1. Remove the film switch cover ASSY thoroughly from the battery box as previous section shown. 2. Remove the screw (indicated by the red circle) to separate the coupled decorative covers.
  • Page 68 2. LED Headlights Replacement LM2020E-SP Lawn Mower 3. Pry the left and right decorative covers by a screwdriver. If the decorative covers are damaged, replace them. Decorative covers...
  • Page 69 2. LED Headlights Replacement LM2020E-SP Lawn Mower 4. Disconnect the plug which is connected the LED headlights to the main PCBA.
  • Page 70 2. LED Headlights Replacement LM2020E-SP Lawn Mower 5. Remove the 2 screws to separate the front decorative cover. Front decorative cover...
  • Page 71 2. LED Headlights Replacement LM2020E-SP Lawn Mower 6. Remove the LED headlights ASSY from the mower. NOTICE: The LED headlights ASSY includes 1pc LED headlight PCB ASSY(including 2 small PCBs), 2pcs reflectors and 2pcs transparent caps. LED headlight PCB ASSY...
  • Page 72 2. LED Headlights Replacement LM2020E-SP Lawn Mower 7. Assemble the new LED headlight PCB ASSY into the transparent cap and reflector first and then onto the battery box . Align the wires into the corresponding grooves. Right LED headlight Left LED headlight...
  • Page 73 2. LED Headlights Replacement LM2020E-SP Lawn Mower 8. Connect the plug which is connected the LED headlights to the main PCBA.
  • Page 74 2. LED Headlights Replacement LM2020E-SP Lawn Mower 9. Close the front decorative covers and align the wire on the battery box side (Fig.1). 10. Close the decorative covers on both sides and lock them with the 1 screw from right side (Fig. 2).
  • Page 75 REPAIR GUIDELINE PART 3.3: Battery Cover of Power Unit Replacement_LM2020E-SP Lawn Mower...
  • Page 76 Battery Cover Replacement LM2020E-SP Lawn Mower The battery cover consists of the transparent guard , which is easy to drop off from the cover itself. Shaft E-clip Description Part Number Battery cover 2824902001 Transparent guard 3127900001 Shaft 5670380001 E-clip 5660003003...
  • Page 77 Battery Cover Replacement LM2020E-SP Lawn Mower 1. Remove the screw to open the film switch cover. 2. Remove the E-clip from the shaft. E-ring Film switch cover...
  • Page 78 Battery Cover Replacement LM2020E-SP Lawn Mower 3. Draw the shaft out from the battery cover by gently taping with a thin rod. 4. Replace with a new battery cover; Mount the new one to the battery box in reverse order.
  • Page 79 REPAIR GUIDELINE PART 4: REAR COVER REPLACEMENT_LM2020E-SP Lawn Mower...
  • Page 80 Rear Cover Replacement LM2020E-SP Lawn Mower Rear Cover Description Part Number Rear Cover 3127944001...
  • Page 81 Rear Cover Replacement LM2020E-SP Lawn Mower 1. Remove total 6 screws to remove the decorative covers on both sides from the mower. Decorative Cover...
  • Page 82 Rear Cover Replacement LM2020E-SP Lawn Mower 2. Remove the E-ring from the left side of the shaft. 3. Pull out the shaft from left side by hand. E-ring Shaft...
  • Page 83 Rear Cover Replacement LM2020E-SP Lawn Mower 4. Take down the rear cover (with a torsion spring in) and shaft. E-ring Shaft Rear Cover Description Part Number Shaft 5670457001 E-ring 5660139002 Rear Cover 3127944001...
  • Page 84 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 (if needed). Remove Description Part Number Torsion Spring 3660559001 Rear Cover 3127944001...
  • Page 85 Rear Cover Replacement LM2020E-SP Lawn Mower 7. Insert the shorter foot of the torsion spring into the groove of rear cover. Insert...
  • Page 86 Rear Cover Replacement LM2020E-SP Lawn Mower 8. Position the rear cover and torsion spring ASSY onto the deck, get the spring foot through the deck groove and rest it on the groove. Rear cover...
  • Page 87 Rear Cover Replacement LM2020E-SP Lawn Mower 9. Insert the shaft, from left side, passing both through the hole on the mower and the torsion spring, until it is placed into position. 10. Lift up the rear cover to check if it can rotate around the shaft smoothly.
  • Page 88 Rear Cover Replacement LM2020E-SP Lawn Mower 11. Install the two decorative covers with the 6 removed screws. Decorative Cover THE END...
  • Page 89 REPAIR GUIDELINE PART 5: TOP HANDLE & SWITCH BOX COVER REPLACEMENT_LM2020E- SP Lawn Mower...
  • Page 90 Table of Contents LM2020E-SP Lawn Mower Contents Page Opening the Switch Box Cover Safety Button Replacement 7-11 Main Switch Set(Lever/Trigger) Replacement 12-14 Top Handle Replacement Top & Bottom Switch Box Cover Replacement Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement 17-27 Closing the Switch Box Cover...
  • Page 91 Top Handle & 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 Switch ASSY 2824754003...
  • Page 92 1. Opening the Switch Box Cover LM2020E-SP Lawn Mower 1. With the handle locked in the operating position, remove the 4 bolts. Each bolt has a corresponding hex nut. NOTICE: The four nuts should be rested in the hole of the bottom cover . If it comes out, place it back.
  • Page 93 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 screws from the housing (Fig. 2). NOTICE: During this process, keep holding the top switch box cover with one hand to prevent dropping.
  • Page 94 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. Main Switch Trigger Main Switch Lever...
  • Page 95 2. Safety Button Replacement LM2020E-SP Lawn Mower 1. Remove the spring, screw, plain washer, switch actuator and safety button. Replace the worn or damaged one. Switch Actuator Screw Washer Safety Button Spring REMARK: The 1pc plain washer and 1pc spring, which...
  • Page 96 2. Safety Button Replacement LM2020E-SP Lawn Mower Place the new safety button into the mounting slot from cover external side (Fig.1 & 2). Align the actuator slot with the buttons higher Button Higher Rib rib (Fig. 3). Button Higher Rib...
  • Page 97 2. 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) . Main Switch...
  • Page 98 2. Safety Button Replacement LM2020E-SP Lawn Mower 6. Mount the spring onto the actuator and make sure it is securely located(Fig. 1). NOTICE: In case that the spring remains located in the bottom switch box cover after opening the switch box cover(Fig. 2), just take down it first and save it for reassembly.
  • Page 99 2. Safety Button Replacement LM2020E-SP Lawn Mower Installation improvement Normal Spring Conical Spring Screw Screw Plain Washer...
  • Page 100 3. Main Switch Set(Lever/Trigger) Replacement LM2020E-SP Lawn Mower 1. Loosen the 2 screws . Remove the clamp, spring and switch lever set(Lever/Trigger). 2. Replace with a new switch lever or trigger if any distortion or malfunction appears. Clamp Main Switch Lever...
  • Page 101 3. 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 by the 3 foots of the trigger(Fig.2). Flat Position Here...
  • Page 102 3. 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 103 4. Top Handle Replacement LM2020E-SP Lawn Mower 1. When the sheath on the top handle is worn, have it replacement as needed. 2. Pull the top handle, removing the handle from the plastic bushings in the aluminum tubes. 3. Replace with a new one.
  • Page 104 5. Top & Bottom Switch Box Cover Replacement LM2020E-SP Lawn Mower 1. Remove the wire harness from the slots in the top switch box cover; 2. Remove the main switch lever set(Lever/Trigger) and self-propelled lever (with one spring on it) from the top switch box cover;...
  • Page 105 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement 1. Remove the main switch, self-propelled switch and speed-adjusting PCB from the top switch box cover. Replace the damaged part accordingly. Speed-adjusting PCB Main Switch Self-propelled Switch REMARK: The parts marked in red Description Part Number fonts will be cancelled, and either of Main Switch...
  • Page 106 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement ① IF the main switch is broken, disconnect it from the wires and replace with a new one by (solder). NOTICE: Mind the soldering sequence as following picture show. 2- Black & black 1-Red 4-Gray 3-Black &...
  • Page 107 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement ② If the self-propelled switch is broken, disconnect it from the wires and replace with a new one (solder). NOTICE: Mind the soldering sequence as following picture show. White- NO Black- NC Pink- COM...
  • Page 108 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement ③ IF the speed-adjusting PCB is broken, disconnect it from the wires and replace with a new one (solder). ④ If the speed-adjusting knob is also broken, replace it with a new one. NOTICE: Mind soldering sequence as Fig. 1 show. Self-propelled Speed-adjusting Self-propelled...
  • Page 109 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement 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 110 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement 3. Align the flexible hose 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 flexible hose located in the housing groove...
  • Page 111 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement 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 112 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement 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 Spring 3660562001 Self-propelled Switch Lever 3127928001...
  • Page 113 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement ② Align the self-propelled lever into the grooves on the top switch box cover. Spring Position...
  • Page 114 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement 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 first (Fig. 1). ② Mount the PCB and knob set into the place correctly (Fig. 2).
  • Page 115 6. Main Switch/Self-propelled Switch/Speed-adjusting PCB Replacement NOTICE: If the self-propelled speed-adjusting PCB has been inserted into the groove incorrectly, the knob can’t be put into place which will cause the cover can’t be closed. Rubber ring...
  • Page 116 7. Closing the Switch Box Cover LM2020E-SP Lawn Mower 1. Before mounting the bottom switch cover onto the handle, fully extend both side rails and make sure that the top handle is inserted into its place with the through holes aligned.
  • Page 117 7. Closing the Switch Box Cover LM2020E-SP Lawn Mower 3. Close the switch box and fix them by tightening the 8 screws first and then the 4 bolts on its back. NOTICE: Make sure the corresponding 4 hex nuts are in their place, otherwise place them into position first.
  • Page 118 REPAIR GUIDELINE PART 6: HANDLE LOCKING CLAMP REPLACEMENT_LM2020E-SP Lawn Mower...
  • Page 119 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower Description Part Number Picture Handle Locking Clamp Set 2823714002...
  • Page 120 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower 1. Use a metal rod and tap gently on the shaft, to take it out. Remove the clamp and the spring. Clamp Shaft Spring...
  • Page 121 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 Rubber base 3126761001 Rubber pad...
  • Page 122 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 123 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 124 Handle Locking Clamp Replacement LM2020E-SP Lawn Mower 6. Insert the shaft and tap it gently with a hammer until the lower side is flush with the housing surface. 7. Test the clamp. The side rails should be firmly locked by the two clamps. They should not retract when force is applied to the handle.
  • Page 125 REPAIR GUIDELINE PART 8: QUICK ADJUSTING LEVER REPLACEMENT_LM2020E-SP Lawn Mower...
  • Page 126 Table of Contents LM2020E-SP Lawn Mower Contents Page Notice for Quick Adjusting Lever Replacement Quick Adjusting Lever Replacement 6-16 Quick Adjusting Lever ASSY Replacement 17-24 Right Decorative Cover Replacement 25-32...
  • Page 127 Notice for Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower Description Part Number Quick Adjusting Lever 2825244001 Quick Adjusting Lever ASSY 2827463001...
  • Page 128 LM2020E-SP Lawn Mower NOTICE: If it is hard to lock the handle of LM2020E/LM2020E-SP mower into the any operating position, please replace not only the quick-adjusting lever on the left side, but also the connecting rod on the right side, and as well as the shaft that links the quick-adjusting lever to the connecting rod.
  • Page 129 Notice for Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower Old handle locking mechanism: Connecting rod 7 parts exploded Quick-adjusting lever Shaft New handle locking mechanism: 5 parts exploded Spring Quick-adjusting lever Connecting rod ASSY...
  • Page 130 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 1. The quick-adjusting lever is on the left side of the mower. 2. Adjust the mower handle to the storage position. Remove the 3 screws (2 from the left decorative cover outside,1 in the inner side of the side tube).
  • Page 131 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 3. Remove the E-ring 1#. E-ring 1# Description Part Number E Ring 1# 5660245001...
  • Page 132 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 4. Tap the pin gently from E-ring side to make it protrude on the opposite side (Fig. 1). 5. Move the mower handle to any operating position to pull the pin 1# out (Fig. 2).
  • Page 133 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 7. Remove the left decorative cover from the quick-adjusting lever (step 1-3). Step 1 Rotate the decorative cover to make the rectangle hole in accordance with the lever’s shape. Step 2 Pass the cover along the lever.
  • Page 134 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 8. Remove the E ring 2# on the end of the quick-adjusting lever and pull the corresponding pin 2# out. The quick-adjusting lever is removed from the mower successfully. NOTICE: The E-ring 1# is bigger than E-ring 2#.
  • Page 135 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 9. Replace with a new quick-adjusting lever. 10. Connect the new quick-adjusting lever with the shaft using E-ring 2# and pin 2# following below recommended steps:  Adjust the mower handle forward to rest it on the deck;...
  • Page 136 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower NOTICE: The head of the pin should face upside and the E-ring should face the ground when the mower handle is in operating position, see below. Handle in operating position Head of the pin facing upside,...
  • Page 137 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 11. Pass the left decorative cover through the quick-adjusting lever. Step 1 Step 2 Rotate the decorative cover to make its inside face the tube for next closing. Step 3...
  • Page 138 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 12. Pass the flexible pin of the quick-adjusting lever into the nut bushing on the tube first and then close the decorative cover with its screw column aligned with the hole in the tube.
  • Page 139 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 13. Fix the left decorative cover with the 3 screws (2 from the decorative cover outside,1 in the inner side of the side tube. 1 screw inside 2 screws outside...
  • Page 140 Quick Adjusting Lever Replacement LM2020E-SP Lawn Mower 14. Fix the spring between the quick-adjusting lever and the side tube. 15. Hold the tube and lever, press the lever to align the hole in the lever with the hole in the plastic part.
  • Page 141 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower If the whole handle locking mechanism needs replacement, the right decorative cover should be removed and then remove the connecting rod beneath from the side tube. The connecting rod on the right side cooperates with the quick-adjusting lever on the left to complete handle position adjustment.
  • Page 142 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower 3. Remove the E-ring 1# and pull the pin 1# out from the holes to separate the old connecting rod from the side tube (Fig.1). 4. Remove the connecting rod and the shaft ASSY from the mower (Fig. 2).
  • Page 143 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower 5. Replace the old handle locking mechanism (including the quick-adjusting lever, connecting rod and shaft ASSY and the corresponding pins or washers) with a new handle locking mechanism, named as quick-adjusting lever ASSY, see below.
  • Page 144 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower 6. Insert the shaft of the new connecting rod and shaft ASSY from the right side into the mower.
  • Page 145 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower 7. Insert the flexible pin of the connecting rod into the nut bushing on the side tube, meanwhile preinstall a spring onto the below nut (Fig. 1). 8. With the spring aligned with the hole in the connecting rod, press the connecting rod to align the pin hole in the rod with the hole in the plastic part (Fig.
  • Page 146 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower 9. Insert the pin 1# into the aligned hole and fix it with E-ring 1# on the backside. Pin 1# E-ring 1# Mower handle in operating position Mower handle in storage position...
  • Page 147 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower 10. Carefully arrange the wire harness beneath the right decorative cover when closing the cover onto the tube(Fig. 1). 11. Finally tighten the decorative cover by the 3 screws (Fig. 2 & 3).
  • Page 148 Quick Adjusting Lever ASSY Replacement LM2020E-SP Lawn Mower 12. Mount the new quick-adjusting lever onto the mower and close the left decorative cover as step10-16 in previous part “Quick Adjusting Lever Replacement” shown. 13. Test the new quick-adjusting lever to check if it can lock the handle at different positions.
  • Page 149 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 1. In case that the right decorative cover needs replacement, below steps should be followed. 2. Remove the service cover 2#(the bigger service cover) by removing the 6 screws first (Fig. 1). 3. Pull out the handle position switch from its position and disconnect all the plugs linked to the power unit and self-propelled PCBA (Fig.
  • Page 150 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 4. Disconnect the handle position switch from the wire harness (solder) (Fig. 1). 5. Remove the wire harness from the right decorative cover (Fig. 2). Tip: Because of the large resistance of the flexible hose that is covered around the wire harness, it is suggested that the wire harness should be carefully slowly turned manually within the hole in the decorative cover while being pulled.
  • Page 151 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 6. Pass the wire harness through the new right decorative cover in the same skill as removing(Fig. 1). 7. Reconnect the switch with wires (solder) (Fig. 2). MIND THE CORRECT CONNETION. Inserting while turning...
  • Page 152 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 10. Place the handle position switch into the locating slot with the joint linked to 3 wires facing upwards. Tip: During this mounting step, you should lift the handle with your one hand from around vertical position, slowly to any operating position while the other hand presses the switch until the plastic part (Switch Actuator) is against the switch.
  • Page 153 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 11. Align the wires with plug linked to main switch into the grooves (Fig. 1). 12. Align the wires with plug linked to micro switch into the grooves (Fig. 2).
  • Page 154 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 13. Align the wires with plug linked to main switch/handle position switch in the grooves (Fig. 1). 14. Align the wires with small black plug linked to self-propelled PCB into the grooves (Fig. 2).
  • Page 155 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 15. Align the wires with bigger black plug linked to self-propelled PCBA into the grooves.
  • Page 156 Right Decorative Cover Replacement LM2020E-SP Lawn Mower 16. Close the right decorative cover with the 3 screws that are removed during disassembly. 17. Close the service cover 2# with 6 screws. 18. Test the quick-adjusting lever to check if it can lock the handle at different positions. Otherwise, reassemble.
  • Page 157 REPAIR GUIDELINE PART 9: Self-propelled PCBA and Unit Replacement_LM2020E-SP Lawn Mower...
  • Page 158 Table of Contents LM2020E-SP Lawn Mower Contents Page Notice for Self-propelled Unit Replacement Self-propelled PCBA and Motor Detection Self-propelled PCBA Replacement 6-11 Motor in Self-propelled Unit Replacement_LM2020E-SP_A 12-22 Gear Box and Rear Axle Set in Self-propelled Unit 23-28 Replacement_LM2020E-SP_A Motor in Self-propelled Unit Replacement_LM2020E-SP_B...
  • Page 159 Notice for Self-propelled Unit Replacement LM2020E-SP Lawn Mower There are 2 different kinds of self-propelled units for LM2020E-SP(LM2020E-SP_V1 & LM2020E-SP_V2), see below (Cutting height adjustment handle ASSY is attached, just for reference). Self-propelled unit_A Self-propelled unit _B Description Part Number...
  • Page 160 1. Self-propelled PCBA and Motor Detection LM2020E-SP Lawn Mower 1. Before replacing or maintaining the PCBA or parts in self-propelled unit, first lift the handle to the operation position to remove the service cover 2# from the mower. Service cover 2#...
  • Page 161 1. Self-propelled PCBA and Motor Detection LM2020E-SP Lawn Mower 2. Disconnect the YELLOW plug that links the self-propelled motor to the self-propelled PCBA. 3. Test the self-propelled motor between any two terminals of the yellow plug using a Multimeter. If it is open-circuit, disassemble the self-propelled unit from the mower first and then disassemble the motor and have replacement.
  • Page 162 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 1. Continue disconnect the self-propelled PCBA from the power unit, self-propelled switch, self-propelled speed-adjusting PCB. Self-propelled PCBA Linked to self-propelled switch Linked to self-propelled motor Linked to power unit Linked to self-propelled speed-adjusting PCB...
  • Page 163 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 2. Cut off the RED wire that links the self-propelled PCBA with the handle position switch. 3. Replace with a new PCBA and connect the new PCBA (solder and plug). Linked to self-propelled speed adjusting PCBA...
  • Page 164 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 4. Put the new PCBA into the mounting slot. Mounting slot...
  • Page 165 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 5. Align the plugs and wires into the grooves following below steps. Step 2 Step 1...
  • Page 166 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower Step 4 Step 3...
  • Page 167 2. Self-propelled PCBA Replacement LM2020E-SP Lawn Mower 6. Turn on the self-propelled trigger by pressing it and then adjust its speed-control lever to test whether the PCBA is assembled correctly. 7. If the self-propelled function works well, close the service cover 2#; otherwise reassemble the self-propelled PCBA.
  • Page 168 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 For below self-propelled unit: follow the steps from Slide P13 to 28. Self-propelled unit_A Description Part Number Status Remark Self-propelled unit_V1 2824960001 LM2020E-SP_V1 Self-propelled motor_V1 2824920002...
  • Page 169 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 1. First lift the handle to the operation position to remove the service cover 2# from the mower. 2. Disconnect the YELLOW plug that links the self-propelled motor to the self-propelled PCBA. 3. Remove the 3 screws and washers. 4.
  • Page 170 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 5. Turn the mower on its back. 6. Adjust the cutting height to the position of 4 or higher, remove the screws 1 # and 3 #. Then adjust the cutting height to the position of 2, remove the screws 2 # and 4 #.
  • Page 171 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 Screw1 # Screw3# 4 mm Allen key The position of 4 Screw2 # inside the hole Screw4 # inside the hole 4 mm Allen key The position of 2...
  • Page 172 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 7. Separate the connecting rod from self-propelled unit by removing the lock nut 1 #. NOTICE: If the connecting rod does not work normally, remove both lock nut 1# and nut 2# to separate connecting rod from the mower as well as the hooked Lock Nut 1# tension spring and have replacement.
  • Page 173 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 8. Remove the self-propelled unit, together with the cutting-height adjustment handle ASSY from the mower. 9. To have self-propelled unit or self-propelled motor replacement, the cutting-height adjustment handle ASSY should be removed first. If needed, have cutting-height adjustment handle ASSY replacement.
  • Page 174 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 10. Release the torsion spring away from the cutting-height adjustment handle. Released spring Foot of the torsion spring...
  • Page 175 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 11. Bent the locking pin straight and draw the pin out, such as using a Needle-nose pliers. 12. Slowly swing the cutting-height adjustment handle ASSY out of the torsion spring. Save the torsion spring, cutting-height adjustment handle ASSY for reassembly. Torsion spring Locking pin removing...
  • Page 176 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 13. The self-propelled unit can be replaced as a whole after the cutting-height adjustment handle ASSY is removed. 14. To have self-propelled motor replacement, remove the 3 screws to separate the motor cover from the motor. Self-propelled unit_V1 Motor cover Description...
  • Page 177 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 15. Remove the 2 screws to detach the self-propelled motor from the self-propelled unit. Description Part Number Self-propelled motor_V1 2824920002...
  • Page 178 3. Motor in Self-propelled Unit Replacement_LM2020E-SP_V1 16. Replace with a new motor and fix the new motor onto the self-propelled unit. NOTICE: Before mounting the new motor, check whether the 3 planet gears are well against the ring gear in the gear box and whether the gasket is located in the slots. If not, put them back to place. Gasket Planet gears wear on the shaft Ring gear...
  • Page 179 4. Gear Box and Rear Axle Set in Self-propelled Unit Replacement_ LM2020E-SP_V1  If the gear box or the rear axle set in LM2020E-SP_A is diagnosed as defective, first disassemble the whole self-propelled unit from the mower as previous instructions shown and then separate the motor and the gear box from the rear axle set.
  • Page 180 4. Gear Box and Rear Axle Set in Self-propelled Unit Replacement_ LM2020E-SP_V1 1. Following the instructions in previous section to remove the self-propelled unit from the mower, continue to remove the 4 screws to detach the gear box from the rear axle set and 2 upper screws to detach the self-propelled motor from gear box.
  • Page 181 4. Gear Box and Rear Axle Set in Self-propelled Unit Replacement_ LM2020E-SP_V1 3. Mount the connectors onto the rear axle set. 4. Continue to mount the gear box and self-propelled motor onto the rear axle set in the reverse order of disassembly. NOTICE: All the gears and gasket in the gear box requires assembling correctly ,see Slide P22.
  • Page 182 4. Gear Box and Rear Axle Set in Self-propelled Unit Replacement_ LM2020E-SP_V1 5. Mount the height adjustment handle ASSY onto the rear axle set following below steps:  Place the torsion spring between the two thorough holes of the rear axle part of the self-propelled unit.
  • Page 183 4. Gear Box and Rear Axle Set in Self-propelled Unit Replacement_ LM2020E-SP_V1  At the end of the vertical pole, fix it by inserting a locking pin first and then bend it (Fig. 1).  Hook the long foot of the tension spring as Fig. 2 shown. Bend the locking pin for fixing...
  • Page 184 4. Gear Box and Rear Axle Set in Self-propelled Unit Replacement_ LM2020E-SP_V1 6. Mount the self-propelled unit with the cutting-height adjustment handle ASSY onto the mower in the reverse order of disassembly. 7. Connect the self-propelled motor to the self-propelled PCBA by plugging the Yellow plug. 8.
  • Page 185 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 For below self-propelled unit: follow the steps from Slide P30 to 40. Self-propelled unit _V2 Description Part Number Status Remark Self-propelled unit_V2 2826561001 LM2020E-SP_V2 Self-propelled motor_V2 2826577002...
  • Page 186 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 1. First lift the handle to the operation position to remove the service cover 2# from the mower. 2. Disconnect the YELLOW plug that links the self-propelled motor to the self-propelled PCBA. 3. Remove the rear wheels and their protecting caps from the mower (see RG_Part 10_Wheels Replacement_LM2020E-SP.pptx) .
  • Page 187 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 4. Turn the mower on its back. 5. Adjust the cutting height to the position of 4 or higher, remove the screws 1 # , 3 #, 5# (2pcs). Then adjust the cutting height to the position of 2, remove the screws 2 # and 4 #.
  • Page 188 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 Screw1 # Screw3# 4 mm Allen key The position of 4 Screw2 # inside the hole Screw4 # inside the hole 4 mm Allen key The position of 2...
  • Page 189 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 6. Separate the connecting rod from self-propelled unit by removing the lock nut 1 #. NOTICE: If the connecting rod does not work normally, remove both lock nut 1# and nut 2# to separate connecting rod from the mower as well as the hooked Lock Nut 1# tension spring and have replacement.
  • Page 190 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 7. Remove the self-propelled unit, together with the cutting-height adjustment handle ASSY from the mower. 8. To have self-propelled unit or self-propelled motor replacement, the cutting-height adjustment handle ASSY should be removed first. If needed, have cutting-height adjustment handle ASSY replacement.
  • Page 191 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 9. Release the torsion spring away from the cutting-height adjustment handle. Released spring Foot of torsion spring...
  • Page 192 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 10. Bent the locking pin straight and draw the pin out, such as using a Needle-nose pliers. 11. Slowly swing the cutting-height adjustment handle ASSY out of the spring. Save the torsion spring, cutting-height adjustment handle ASSY for reassembly. Locking pin removing Torsion spring...
  • Page 193 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 12. Remove the 4 screw 1# (3 on one side, 1 on the other side)and 2 screw 2# to separate the motor cover, as well as the supporting lever, from the motor. See next slide. Screw 1# Screw 1# Screw 2#...
  • Page 194 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 Motor cover Supporting lever...
  • Page 195 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 13. Remove the 2 screws to detach the self-propelled motor from the self-propelled unit. Description Part Number Self-propelled motor_B 2826577002...
  • Page 196 5. Motor in Self-propelled Unit Replacement_LM2020E-SP_V2 14. Replace with a new self-propelled motor and mount it onto the self-propelled unit in the reverse order of disassembly. 15. Follow the steps that are shown in Slide P26 -28 to reassemble the cutting-height adjustment handle ASSY and so on to complete closing.
  • Page 197 REPAIR GUIDELINE PART 10: WHEELS REPLACEMENT_LM2020E-SP Lawn Mower...
  • Page 198 Table of Contents LM2020E-SP Lawn Mower Contents Page Notice for Wheels Replacement Front Wheel Replacement Rear Wheel Replacement 6-12...
  • Page 199 Notice for Wheels Replacement LM2020E-SP Lawn Mower There are 2 different kinds of self-propelled units for LM2020E-SP(LM2020E-SP_V1 & LM2020E-SP_V2), see below (Cutting height adjustment handle ASSY is attached, figures are just for reference). As a result, the rear wheel that connects with the self-propelled unit is different.
  • Page 200 1. Front Wheel Replacement LM2020E-SP Lawn Mower If the front wheel is damaged, replace it. 1. Turn the mower on the side, pry the hubcap by a screwdriver to remove it. Front wheel Hubcap Hubcap Description Part Number Hubcap 3126769001...
  • Page 201 1. Front Wheel Replacement LM2020E-SP Lawn Mower 2. Replace with a new front wheel. 3. Mount it onto the front axle shaft with the plain washer and wave washer beneath it. Wave washer Plain washer Front wheel...
  • Page 202 2. Rear Wheel Replacement LM2020E-SP Lawn Mower If the rear wheel is damaged, replace it. 1. Turn the mower on the side and pry the hubcap by a screwdriver to remove it. Hubcap Hex bolt Description Part Number Hubcap 3126765001...
  • Page 203 2. Rear Wheel Replacement LM2020E-SP Lawn Mower 2. Remove the hex bolt using a S=13mm socket wrench to separate the wheel from its protective cap, which is fixed on the self-propelled unit. Save the wave washer on the self-propelled unit shaft.
  • Page 204 2. Rear Wheel Replacement LM2020E-SP Lawn Mower For self-propelled unit_V1, there is 1 plain washer and 1 spring washer beneath the screw for locking the wheel-protective cap. Screw, plain washer & Self-propelled unit_V1 spring washer Wheel protective cap For self-propelled unit_V2, there is just 1 screw for locking the wheel-protective cap.
  • Page 205 2. Rear Wheel Replacement LM2020E-SP Lawn Mower 4. Remove the drive gear from the wheel by loosening the 3 screws and replace the damaged wheel with a new one.  For self-propelled unit_V1, see below: Drive gear Screw Rear wheel...
  • Page 206 2. Rear Wheel Replacement LM2020E-SP Lawn Mower  For self-propelled unit_V2, see below: Screw Rear wheel Drive gear Description Part Number Drive gear 3520933001 Rear Wheel 2825267001...
  • Page 207 2. Rear Wheel Replacement LM2020E-SP Lawn Mower NOTICE: During rear wheel reassembly, pay attention to the surface of the drive gear stating “OUT” should face outward. This side facing wheel This side facing outward...
  • Page 208 2. Rear Wheel Replacement LM2020E-SP Lawn Mower 5. If the wheel protective cap is broken, according to the actual mower, choose the correct wheel protective cap for replacement. Description Part Number Status Remark Wheel protective cap 3127923001 LM2020E-SP_V1 Wheel protective cap...
  • Page 209 REPAIR GUIDELINE PART 11:Housing Cover & Front Axle Replacement_LM2020E-SP Lawn Mower...
  • Page 210 Table of Contents LM2020E-SP Lawn Mower Contents Page Housing Cover Replacement Front Axle Replacement...
  • Page 211 1. Housing Cover Replacement LM2020E-SP Lawn Mower Gasket 1. Remove the blade(see RG_Part 1_Blade Replacement_LM2020E-SP.pptx). 2. Remove the power unit from the mower (see RG_Part 3.1_Parts in Power Unit Replacement_LM2020E SP.pptx). 3. Turn the mower on its back to remove the 5 screws on the steel deck (Fig. 1).
  • Page 212 1. Housing Cover Replacement LM2020E-SP Lawn Mower 1. Turn the mower on its back and remove the 5 screws to separate the bottom front cover from the mower. Bottom front cover...
  • Page 213 1. Housing Cover Replacement LM2020E-SP Lawn Mower 2. Remove the 4 screws and 2 mounting plates to separate the top front cover from the mower. 3. Have front cover ASSY replacement as needed. Mounting plates Description Part Number Front cover ASSY...
  • Page 214 2. Front Axle Replacement LM2020E-SP Lawn Mower 1. If the front axle is damaged, turn the mower on its back, remove the front wheel (see RG_Part 10_Wheels Replacement_LM2020E-SP.pptx) and separate the front cover ASSY from the mower as previous steps show.
  • Page 215 2. Front Axle Replacement LM2020E-SP Lawn Mower 2. Remove the lock nut on the joint, which links to the connecting rod. Connecting rod Lock nut...
  • Page 216 2. Front Axle Replacement LM2020E-SP Lawn Mower 3. Separate the joint by hand. WARNING: This step may cause injuries. Slow down. Gloves recommended...
  • Page 217 2. Front Axle Replacement LM2020E-SP Lawn Mower 4. Remove the front axle from the mower and have replacement. 5. Assemble the new front axle and front cover ASSY in the reverse order of disassembly Front axle Description Part Number Front axle...