Bulbs
Flower Basics
Flower Beds & Specialty Gardens
Flower Garden
Garden Furniture
Garden Gnomes
Garden Seeds
Garden Sheds
Garden Statues
Garden Tools & Supplies
Gardening Basics
Green & Organic
Groundcovers & Vines
Growing Annuals
Growing Basil
Growing Beans
Growing Berries
Growing Blueberries
Growing Cactus
Growing Corn
Growing Cotton
Growing Edibles
Growing Flowers
Growing Garlic
Growing Grapes
Growing Grass
Growing Herbs
Growing Jasmine
Growing Mint
Growing Mushrooms
Orchids
Growing Peanuts
Growing Perennials
Growing Plants
Growing Rosemary
Growing Roses
Growing Strawberries
Growing Sunflowers
Growing Thyme
Growing Tomatoes
Growing Tulips
Growing Vegetables
Herb Basics
Herb Garden
Indoor Growing
Landscaping Basics
Landscaping Patios
Landscaping Plants
Landscaping Shrubs
Landscaping Trees
Landscaping Walks & Pathways
Lawn Basics
Lawn Maintenance
Lawn Mowers
Lawn Ornaments
Lawn Planting
Lawn Tools
Outdoor Growing
Overall Landscape Planning
Pests, Weeds & Problems
Plant Basics
Rock Garden
Rose Garden
Shrubs
Soil
Specialty Gardens
Trees
Vegetable Garden
Yard Maintenance
How to Unfreeze a Bump Knob From a Troy Bilt Weed Trimmer
How to Unfreeze a Bump Knob From a Troy Bilt Weed Trimmer. Troy-Bilt manufactures a wide line of weed trimmers to tackle most trimming jobs around the home. Some of their trimmers use a bump knob on the bottom of the spool to feed line when necessary. When the bump knob is not working properly, the line will not come out. There are two main causes...
Troy-Bilt manufactures a wide line of weed trimmers to tackle most trimming jobs around the home. Some of their trimmers use a bump knob on the bottom of the spool to feed line when necessary. When the bump knob is not working properly, the line will not come out. There are two main causes of a bump knob freezing in the head. Either the spring between the spool and housing is stuck or the bolt inside the knob requires attention. Unfreezing a bump knob from a Troy-Bilt weed trimmer involves inspecting both for damage before making minor adjustments.
Things You'll Need
Spray silicone lubricant
Petroleum jelly
Rag
Unplug the wire from the spark plug on your Troy-Bilt weed trimmer. Place the weed trimmer on its side.
Hold the outside of the spool housing with one hand and twist the bump knob clockwise with your free hand. If necessary, turn the bump knob initially with pliers if it is difficult to turn by hand.
Pull the inner spool out of the outer housing with your fingers. Look for a spring on the top of the spool. Inspect the spring for damage. If the spring is bent, purchase a replacement at a home improvement center.
Hold the bump knob with one hand and turn the bolt on the top of the knob with your free hand. The bolt should turn freely inside the knob. If it does not, look for cracks or damage on the knob. If you find damage replace the knob.
Spray inside the hole where the bolt threads exit the bump knob with silicone, if there is no damage. Turn the bolt left and right to distribute the silicone.
Apply a thin film of petroleum jelly onto the center shaft of the outer housing with your fingers. Clean the inside of the outer housing with a rag to remove any caked-on dirt or grass.
Place the spring over the center shaft of the outer housing and insert the inner spool over the spring with the ends of the line going through the eye holes of the outer housing.
Thread the bump knob onto the trimmer counterclockwise until it is hand tight. Push the end of the plug wire over the spark plug.
