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Washer

Part Number: 638090001
RyobiHomelite
Availability: 25+ in stock
Price: $1.99
Quantity:
Ships within 1 business day

*This part replaces obsolete part #: UP04275 and 98929A.

Description:
It is a genuine item that is supplied by the original manufacturer for use with Ryobi and Homelite handheld string trimmers. This washer-clutch is a special friction disk that helps to engage the clutch by ensuring a tight fit between connected components. It provides an identical replacement for a damaged or a missing hardware that was installed on a new unit. Check the diagrams of your model for the exact location and the correct installation of this part. One durable metal washer is included. You may need a screwdriver and a wrench set to perform this repair.
Product Information
Manufacturer: Ryobi, Homelite
Product Number: 638090001
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Compatibility

This part is compatible with the following machines:

Ryobi
Homelite

Products Compatibility

This item works with the following types of products:

  • • Hedge Trimmer
  • • Pruner
  • • Trimmer
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
Tool Type:
Trimmer
Parts Used:
Clutch Assembly - 300960002
Washer - 638090001
Clutch Washer (sold individually) - 678257001
Drum And Connector - 308177001
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, hammer
Clutch discs broken
1. Found the Clutch discs were obsolete. (Homelite bc900 and many other trimmers I found in my research.)
2. I discovered while researching that the clutch parts breakdown used the same clutch washer and the same drum, but it used a different clutch which wasn't obsolete. Purchased new clutch, drum, and the two different sized washers. Parts were for Ryobi BC30.
3. Removed the clutch drum by loosening captive torx screw in end of drum, sliding off the drum.
4. Removed the clutch each of the two clutch discs by tapping a screwdriver with a hammer to spin then off.
5. Removed old clutch washers.
6. Replaced washers and clutch in order for other model trimmer.
7. Tighten clutch with adjustable plier.
8. Installed new drum.
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Thanks for voting and helping fellow customers!
Tool Type:
Trimmer
Parts Used:
Clutch Assembly - 300960002
Washer - 638090001
Clutch Washer (sold individually) - 678257001
Drum And Connector - 308177001
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Pliers, Power Drill, Socket set, Nutdriver, Spark plug socket and small rope
Bad vibration due to broken clutch
Remove spark plug and feed small rope into spark plug hole to stop piston from turning over.
Remove T25 screw holding clutch drum to crankshaft
Turn clutch counter clockwise to unscrew from shaft
Replace part in reverse sequence with new parts
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Trimmer
Parts Used:
Clutch Assembly - 300960002
Washer - 638090001
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Socket set, Torq driver, adjustable band wrench, rope
Clutch was defective
1. Removed starter pull handle
2. Removed 12 torq screws/bolts
3. Disconnected electrical connectors and throttle cable
4. Removed spark plug
5. Fed rope into cylinder to "jam" piston
6. Removed old clutch assembly and washer
7. Installed new washers and clutch assembly
8. Fed starter rope through housing
9. Aligned starter pulley
10. Reinstalled torq screws (8) and bolts (4)
11. Reconnected electrical connectors and throttle cable
12. Installed spark plug
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Discussion
Discussion for Washer - ( 638090001 )
Discussion is closed. To ask our experts a question about a part, use the Q&A feature.
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