Part Location Diagram of 90056000005 Echo Lock Nut
See part B-8 in the diagram
( Grid squares measure 1x1 inch )

Lock Nut 90056000005

Manufactured by:
Echo
ERP Number:
ERP9308877
Part Number:
90056000005
Original Equipment Manufacturer ?
  Works with your model  CS-5000!
$5.95
In Stock
Delivers in 3-5 Business Days!

Easy 

Less than 15 mins 

(4 rated repairs) ?
  Works with your model   CS-5000!

Product Description

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This manufacturer sourced replacement part is designed for use with Shindaiwa and Echo handheld lawn and garden equipment. A lock nut is a type of nut that resists loosening when properly threaded onto a bolt. This is a standard hardware which will has multiple applications depending on your equipment. This lock nut is made from high quality metal and it is sold individually.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Echo
  • Shindaiwa
This part works with the following products:
  • Trimmer
  • Hedge Trimmer
  • Chainsaw
  • Engine
  • Edger
  • Sprayer
  • Leaf Blower / Vacuum
  • Pole Saw
  • Tiller
Part# 90056000005 replaces these:
90056000005,

Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

Less than 15 mins 

(4 rated repairs) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Chain tensioner bent.

Ross from Natick, Massachusetts

5 of 5 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Removed the chain bar plate. Took out the damaged tensioner, replaced with the new one. Put the bar plate back on and put back on the bar and chain. Checked the tensioner.
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The throttle trigger, spring, nut and bolt that hold them in were missing.

David from Lynn, Massachusetts

4 of 4 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Using the diagram on the site, pretty much just fitted it together. The spring being the only difficult part. Fitting it into the trigger while sneezing it in, and threading the bolt through it. Just a bit of finagling got it together.
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Missing screw

Mj from KENT, Washington

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver, Pliers, Screw drivers
1.assembled the parts
2. Mounted parts on machine
3. Tightened the screws
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Screw missing from the bumper spike

Darin from Lewisburg, West Virginia

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
90056000005, 90010605012
1. Removed other screw set from the bumper spike.
2. Cleaned the spike with brake cleaner.
3. Clean around the screw hole with brake cleaner.
4. Install Lock nuts.
5. Go overkill and put Loctite on the top of screw threads.
6. Lose nut out of holders and search for 5 minutes.
7. Reinstall locknuts. ... Read more />8. Align bumper spike on saw and install screws finger tight.
8. Tighten screws and complete the task.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP9308877
Manufacturer Part Number: 90056000005
Brand Model Number Description
Echo 400AE Trimmer - Straight Shaft Trimmer
Shindaiwa 600sx Chainsaw - Gasoline Chainsaws
Shindaiwa 9001051 Hedge Trimmer - Ah Cutting Head
Echo 90092 Hedge Trimmer - Hca Cutting Head Assembly
Echo 99944200550 Sweeper - Prosweep Attachment
Echo 99944200552 Sweeper - Prosweep Attachment
Echo 99944200553 Power Broom - Prosweep Attachment
Echo 99944200560 Dethatcher - Prothatch Attachment
Echo 99944200563 Dethatcher - Prothatch Attachment
Echo 99944200595 Hedge Trimmer - Articulating Hedge Trimmer Attachment
Echo 99944700170 Chainsaw - Two Wheel Cart
Echo CS-1001VL Chainsaw - Chainsaw
Echo CS-280E Chainsaw - Chainsaw
Echo CS-290EVL Chainsaw - Chainsaw
Echo CS-290EVLP Chainsaw - Chainsaw
Echo CS-300 Chainsaw - Chainsaw
Echo CS-3000 Chainsaw - Chainsaw
Echo CS-301 Chainsaw - Chainsaw
Echo CS-305 Chainsaw - Chainsaw
Echo CS-340 Chainsaw - Chainsaw
Echo CS-3400 Chainsaw - Chainsaw
Echo CS-341 Chainsaw - Chainsaw
Echo CS-345 Chainsaw - Chainsaw
Echo CS-3450 Chainsaw - Chainsaw
Echo CS-346 Chainsaw - Chainsaw
Echo CS-4000 Chainsaw - Chainsaw
Echo CS-4400 Chainsaw - Chainsaw
Echo CS-440EVL Chainsaw - Chainsaw
Echo CS-4500 Chainsaw - Chainsaw
Echo CS-451VL Chainsaw - Chainsaw