O-rings are designed to contain thousands of pounds of pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness.
There are many causes for O-Ring failure, such as pressure, friction, temperature or chemicals. The most common are:
• <u>Extrusion and Nibbling</u> - O-ring has ragged, tattered edges. These are commonly caused by pressure spikes which shear off tiny "bites" from the o-ring, or caused by clearance gaps.
• <u>Abrasion</u> - One or both sides of the o-ring appear rough and slightly flattened. Commonly caused by a contact surface that is too rough, contains grit or is too smooth to allow lubrication.
• <u>Over Compression </u> - O-ring is flattened on both sides and may have a "ring" split along its length. Commonly caused by excessive pressure or heat.
• <u>Heat Hardening</u> - O-ring has a pitted or cracked surface, and often is flattened on both sides. Caused by temperature exceeding o-ring capacity.
• <u>Weather/Ozone Cracking</u> - O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching causes similar cracking.
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★★★★★
★★★★★
The Product was correct one delivery and delivered in timely manner.
Guest - October 31, 2020
Verified Purchase
★★★★★
★★★★★
O ring
Broke off the locking pin on my Dewalt chopsaw. Ordered a new pin and O ring. Parts arrived slowly due to supply shortage, but they work perfectly in my saw.
Guest - December 30, 2021
Verified Purchase
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1. Removed Blade cover retraction arm.
2. Removed blade up position stop bolt.
3. Lift Blade up to clear lock pin.
4. Push broken Lock Pin out on Blade side.
5. Slip new o-ring onto lock pin.
6. Slide new lock pin and o-ring into position.
7. Push Blade down and re-install stop bolt.
8. Re-install
... Read more Blade cover retraction arm.
1. Removed the bolt from the blade guard linkage.
2. Tie the head back to the slider rod in the upright position to keep it from dropping when the pivot shaft is removed
3. Loosened set screws from head pivot shaft
4. Use a punch to drive the pivot shaft partially out. until the spring and bushings come out.
5. Bei
... Read moreng aware that the head may drop some, drive the pivot shaft out until the head is loose.
6. Manipulate the head back far enough to slide the broken locking pin out.
7. Put new o-ring on new locking pin and install, careful to not crimp the o-ring as you insert the pin
8. Lift head and pivot spring/bushings back into place, drive in pivot shaft. 2 people for this helps.
9. Tighten pivot shaft set screws, reinstall bolt in guard linkage.
loosened screw on the stop so saw could move all the way back. pushed pin out pushed new one in, I had to use pliers to get it in. then moved saw back into place and tightened locking screw.
1 Remove stop nut on back of saw, this is the one that has the bar attached to open and close the blade guard.
2 Open saw (motor head fully) to access pin.
3 Use screw driver or punch to push out pin towards the blade.
4 Install O-ring onto new lock pin.
5 install new pin into slot.
6 Close saw engage lock pi
... Read moren and attach stop nut.
Loosen the blade guard to swing it out of the way to remove the broken pin and installed the new one with a new O ring (lost the O ring so had to get a new one). The blade removal wrench is right with the saw so no addition tools are needed :o)
This is the third time I have had to replace the locking pin so it gets easier and
... Read more faster each time
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Model Cross Reference
This part works with the following models:
ERP Number: ERP10165195
Manufacturer Part Number: 034158-00
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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