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Video & Articles: Appliance & Equipment RepairPoulan String Trimmer Bump Knob Replacement #537419601
Poulan String Trimmer Bump Knob Replacement #537419601
Skill Level
Total Parts Cost
$8.15Estimated Savings
$112.5001:20
- Description
This video provides step-by-step instructions for replacing the bump knob (or bump head) on Husqvarna and Poulan Pro string trimmers. The most common reason for replacing the bump knob is when bumping the knob against the ground no longer causes the spool to release more line.
All of the information in this bump knob replacement video is applicable to the following brands: Husqvarna, Poulan Pro
Tools used: flat-head screwdriver
All of the information in this bump knob replacement video is applicable to the following brands: Husqvarna, Poulan Pro
Tools used: flat-head screwdriver
Step By Step Instructions
1
Before you replace the bump knob on your string trimmer first remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
2
Keeping your hands clear of the line cutter, depress the two tabs on the trimmer head and pull off the trimmer head housing.
3
Use a flathead screwdriver to help detach the old bump knob if still intact then rotate to remove.
4
You’re now ready to install the new bump knob.
5
Make sure the spring is in place, then align the new knob, rotate and snap it into place.
6
Reinstall the trimmer head housing by aligning the tabs and snapping it into position.
7
Reattach the wire and boot to the spark plug and your string trimmer should be ready for use.
Description
This video provides step-by-step instructions for replacing the bump knob (or bump head) on Husqvarna and Poulan Pro string trimmers. The most common reason for replacing the bump knob is when bumping the knob against the ground no longer causes the spool to release more line.
All of the information in this bump knob replacement video is applicable to the following brands: Husqvarna, Poulan Pro
Tools used: flat-head screwdriver
All of the information in this bump knob replacement video is applicable to the following brands: Husqvarna, Poulan Pro
Tools used: flat-head screwdriver
Step-By-Step Instructions
1
Before you replace the bump knob on your string trimmer first remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
2
Keeping your hands clear of the line cutter, depress the two tabs on the trimmer head and pull off the trimmer head housing.
3
Use a flathead screwdriver to help detach the old bump knob if still intact then rotate to remove.
4
You’re now ready to install the new bump knob.
5
Make sure the spring is in place, then align the new knob, rotate and snap it into place.
6
Reinstall the trimmer head housing by aligning the tabs and snapping it into position.
7
Reattach the wire and boot to the spark plug and your string trimmer should be ready for use.
Applicable Product Model
Parts Needed
Bump Knob
$8.15
Total$0.00
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