EGO STA1500 User manual

REPAIR GUIDELINE
String Trimmer Attachment_STA1500
Version: 1
Issue Date: 12/02/2016

Table of Contents
2
NO.
Contents
Page
1
Troubleshooting
3
2
Tool list
4
3
Part 1: Replace the Housing Assembly and Gear Case
5-29

Troubleshooting
3
Problem
Possible Cause
Fault Position
Test & Solution
Not feeding line
Poor cutting line
Trimmer line
Replace the cutting line. (e.g. 2.4mm nylon
line)
Hard to wind up line
Support of the lower
housing assembly is worn
Lower housing
assembly
Replace the lower housing assembly
Not cutting the line
Blade on the guard assembly
is worn
Guard assembly
Replace the guard assembly

Tool List For Repair
4
NO.
Tool List
SPEC
Remark
1
Socket wrench
14mm
2
Hex wrench
4mm

5
Part 1: Replace the Housing Assembly
and Gear Case

1. Loosen 2 screws to disassemble the guard assembly, if the guard assembly is broken, replace
it with a new one.
6
Replace the Housing Assembly and Gear Case
Description
Part Number
Qty.
Tapping screw
5620216003
2
Guard assembly
2824957002
1
Guard assembly

2. Press the release tabs to remove the lower housing assembly.
7
Replace the Housing Assembly and Gear Case
Release tab
Lower housing assembly
Description
Part Number
Qty.
Lower housing assembly
2824946001
1

3. Take the spring out of the upper housing assembly.
8
Replace the Housing Assembly and Gear Case

4. Rotate the upper housing assembly to align the slot in the flange with the hole in the gear
case.
5. Insert the hex wrench into the aligned holes to act as a stabilizer.
9
Replace the Housing Assembly and Gear Case

6. Loosen the nut with multifunction wrench clockwise to remove it from the shaft.
10
Replace the Housing Assembly and Gear Case
Nut

7. Take the plain washer out of the shaft.
11
Replace the Housing Assembly and Gear Case
Plain washer

8. Take the upper housing assembly out of the shaft.
12
Replace the Housing Assembly and Gear Case
Upper housing assembly
Description
Part Number
Qty.
Upper housing assembly
2824947001
1

9. Take the flange cover out of the shaft.
13
Replace the Housing Assembly and Gear Case
Flange cover
Description
Part Number
Qty.
Flange cover
3706103001
1

10. Take the flange out of the shaft.
14
Replace the Housing Assembly and Gear Case
flange
Description
Part Number
Qty.
Inner flange
3552509001
1

11. Loosen 3 screws to remove the fixing board.
15
Replace the Housing Assembly and Gear Case
Screw 1
Screw 2
Description
Part Number
Qty.
Screw 1
5620213003
1
Screw 2
5620216003
2
Fixing board
3705417001
1
Fixing board

12. Pull the connecting tube with one hand and pull the gear case with the other hand to
separate them from each other.
16
Replace the Housing Assembly and Gear Case

13. Hold the connecting tube with one hand and hold the gear case with the other hand to
assemble them together.
17
Replace the Housing Assembly and Gear Case

14. Tighten the gear case with the connecting tube with screw.
15. Tighten the fixing board with the gear case with screws.
18
Replace the Housing Assembly and Gear Case

16. Mount the flange onto the shaft.
19
Replace the Housing Assembly and Gear Case

17. Mount the flange cover onto the shaft.
20
Replace the Housing Assembly and Gear Case