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EGO ST1500E-F Repair Manual Line
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EGO ST1500E-F Repair Manual Line

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REPAIR GUIDELINE
String Trimmer_ST1500E-F
Version: 1
Issue Date: 12/02/2016

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Summary of Contents for EGO ST1500E-F

  • Page 1 REPAIR GUIDELINE String Trimmer_ST1500E-F Version: 1 Issue Date: 12/02/2016...
  • Page 2 Table of Contents Contents Page Troubleshooting Tool list Part 1: Replace the Motor Assembly 5-28 Part 2: Replace the PCBA 29-42...
  • Page 3 Troubleshooting Fault Problem Possible Cause Test & Solution Position Replace the cutting line. (e.g. 2.4mm Not feeding line Poor cutting line Trimmer line nylon line) Lower Support of the lower housing Hard to wind up line housing Replace the lower housing assembly assembly is worn assembly Guard...
  • Page 4 Tool List For Repair Tool List SPEC Remark Phillips Socket wrench 14mm Torx screwdriver T-15 Hex wrench Electric soldering iron Heat gun Heat shrinkable sleeves Scissors To remove the shrinkable sleeve...
  • Page 5 Part 1: Replace the Motor Assembly...
  • Page 6 Replace the Motor Assembly 1. Stop the motor and remove the battery pack from the string trimmer. 2. Loosen the two hex bolts in the guard with the M5 hex wrench, remove the guard from the shaft. Guard assembly Hex bolt Spring washer Description Part Number...
  • Page 7 Replace the Motor Assembly Press the release tabs on the lower housing assembly to remove the lower housing assembly. Release tab Description Part Number Qty. Lower Housing 2824808001 Assembly...
  • Page 8 Replace the Motor Assembly 4. Pull the spring out of the motor shaft .
  • Page 9 Replace the Motor Assembly 5. Rotate the nut counterclockwise to remove the nut.
  • Page 10 Replace the Motor Assembly 6. Pull washer out of the motor shaft.
  • Page 11 Replace the Motor Assembly 7. Pull the upper housing assembly out of the motor shaft and then pull the outer flange out of the motor shaft.
  • Page 12 Replace the Motor Assembly 8. Loosen the three screws on the shield cover, remove the shield cover from the motor assembly. Shield cover Washer Screw Description Part Number Qty. Shield cover 3127655001 Screw 5610059007 washer 5650396003...
  • Page 13 Replace the Motor Assembly 9. Loosen the screws in the rear housing (7 screws) and handle assembly (7 screws), remove the housings, upper cover and lower cover. Spring pin Upper cover Lower cover Description Part Number Qty. Tapping Screw 5610294001 Upper cover 3127650001 Lower cover...
  • Page 14 Replace the Motor Assembly 10. Loosen the two locking screws on the fixing rings, take out the shaft from the housings. Description Part Number Qty. Fixed Ring 3705178001 Plain Washer 5650005002 Tapping Screw 5610294001...
  • Page 15 Replace the Motor Assembly 11. Remove the heat-shrinkable sleeves from the connectors with a scissor. 12. Move the transparent sleeves aside, and pull the connectors to separate. Heat-shrinkable sleeve Transparent sleeve...
  • Page 16 Replace the Motor Assembly 13. Take out the motor assembly from the motor housing. 14. Remove the heat-shrinkable sleeves from the cables and disconnect the cables. Motor housing Motor assembly Motor assembly...
  • Page 17 Replace the Motor Assembly 15. Replace the damaged motor with a new one. 16. The motor housing can be replaced as well if it is broken or worn. 17. Place new heat-shrinkable sleeves over the cables. Connect the cables with electric soldering iron.
  • Page 18 Replace the Motor Assembly 18. Move the heat-shrinkable sleeves to cover the soldering points and use a hot air gun to shrink the sleeves. 19. Position the motor assembly into the motor housing; mount the shield cover on the motor assembly and lock it with three screws and washers.
  • Page 19 Replace the Motor Assembly 20. Put the outer flange onto the shaft and then put the upper housing assembly onto the shaft.
  • Page 20 Replace the Motor Assembly 21. Mount washer onto the motor shaft.
  • Page 21 Replace the Motor Assembly 22. Mount the nut onto the motor shaft and then rotate the nut clockwise with a socket wrench.
  • Page 22 Replace the Motor Assembly 23. Mount the spring onto its position.
  • Page 23 Replace the Motor Assembly 24. Align the tabs on the lower housing assembly with the holes on the upper housing assembly to mount the lower housing assembly onto the upper housing assembly.
  • Page 24 Replace the Motor Assembly 25. Rotate the lower housing assembly counterclockwise as necessary to align the mark “LOAD” on the lower housing assembly with the eyelets on the upper housing assembly.
  • Page 25 Replace the Motor Assembly 26. Cut one piece of trimmer line 5m long. Insert the line into the eyelet on the upper housing assembly. Push until the end of the line comes out of the other side of the upper housing assembly.
  • Page 26 Replace the Motor Assembly 28. Assemble the connectors in the rear housing. a) Place new heat-shrinkable sleeves through the connectors. b) Plug the three connectors and make sure they are fully insert in place. Correct connection: White to White, Black to Black, Blue to Green. Move the transparent sleeves and the heat-shrinkable sleeves to cover the connectors and use a hot air gun to shrink the sleeves.
  • Page 27 Replace the Motor Assembly 29. Align the cables in the grooves of the rear housing. Notice: the black cable must be aligned as followed in the figure below. Cable alignment...
  • Page 28 Replace the Motor Assembly 30. Position the shaft in the rear housing and handle housing, lock it by the fixed rings with the tapping screws. 31. Close the handle housing, put the support leg and upper cover into position, then close the rear housing, lock the housings with 14 tapping screws.
  • Page 29 Part 2: Replace the PCBA...
  • Page 30 Replace the PCBA Loosen the screws in the rear housing (7 screws) and handle assembly (7 screws), remove the housings, upper cover and lower cover. Spring pin Upper cover Lower cover Description Part Number Qty. Tapping Screw 5610294001 Upper cover 3127650001 Lower cover 3127675002...
  • Page 31 Replace the PCBA 2. Loosen the two locking screws on the fixed rings, take out the shaft from the housings. Description Part Number Qty. Fixed Ring 3705178001 Plain Washer 5650005002 Tapping Screw 5610294001...
  • Page 32 Replace the PCBA Remove the heat-shrinkable sleeves from the connectors with a scissor. 4. Move the transparent sleeves aside, pull the connectors to separate. Heat-shrinkable sleeve Transparent sleeve...
  • Page 33 Replace the PCBA Take out the PCBA from the housings. Replace it with a new one. 6. The battery release button, latch, battery ejection lever, housings can be replaced if they are broken or worn. Description Part Number PCBA PCBA 2830204001 Battery release 3127201001...
  • Page 34 Replace the PCBA 7. Assemble the connectors in the rear housing. a) Place new heat-shrinkable sleeves through the connectors. b) Plug the three connectors and make sure they are fully inserted in place. Correct connection: White to White, Black to Black, Blue to Green. Move the transparent sleeves and the heat-shrinkable sleeves to cover the connectors and use a hot air gun to shrink the sleeves.
  • Page 35 Replace the PCBA 8. Align the locating pins on the housings with the holes in the shaft so as to put the shaft into place both in the rear housing and handle housing, lock it by the fixed rings with tapping screw and washer. Align the pins with the holes...
  • Page 36 Replace the PCBA 9. Align the cables in the grooves of the rear housing. Notice: the black cable must be aligned as followed in the figure below. Cable alignment...
  • Page 37 Replace the PCBA 10. Fix the switches into the handle housing, and put the rubber block into the groove of switch 1. Rubber Block Switch 1 Switch 2...
  • Page 38 Replace the PCBA 11. Align the cables in the grooves. Cable alignment Cable alignment...
  • Page 39 Replace the PCBA 12. Replace the lock-off trigger or switch trigger if they are broken. Switch trigger Lock-off trigger Compression spring Description Part Number Qty. Lock-off Trigger 3127654001 Compression Spring 3660030005 Switch Trigger 3127653001...
  • Page 40 Replace the PCBA 13. Mount the interlock trigger and switch trigger into the handle housing. 14. Position the shaft in the handle housing, lock it by the fixed ring with the tapping screw. Align the fixing hole in the interlock trigger with the fixing pole in handle and push the trigger in place...
  • Page 41 Replace the PCBA 15. Close the handle housing, put the lower cover and upper cover into position, then close the rear housing(pictures on next page). NOTICE: The locating pin in the rear housing and handle housing must align with the fixing hole in the shaft.
  • Page 42 Replace the PCBA 16. Lock the housings with 14 tapping screws.