Genuine Bostitch replacement part, this item is sold individually. The 850607 is used in the Bostitch pneumatic tools shown below. It is used in different areas of some of these tools.. The most popular is being installed on the piston of most of the nail guns shown to help create a seal. On the Staplers it is installed on the cylinder, also to create a seal. Over time seals will wear and crack and need to be replaced.
Remove top cover pull out driver and replaced the piston o-ring. Then followed the instructions included with the trigger kit. Then put it back together.
1. Removed the 4 screws that hold the back cap on.
2 pulled out the driver/piston
3. Used compress air to clean out all the debris from the shattered bumper.
4. Installed new parts. O-ring, bumper, guide
5. Used air tool oil to lube up new parts
6. Reassembled the back cap using the 4 Allen screws
7.
... Read moreTested nailer and works perfectly.
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Missing the pins that hold trigger,trigger valve assembly leaking,,,obtained trigger valve assembly locally
1. Removed trigger valve assembly by connecting air hose to roofing nailer,,,the pins were missing so valve assembly popped right off
2. Lubed new trigger valve assembly with air tool grease and inserted valve in body,noting that the grooves on trigger valve assembly lined up with pins that hold it in
3. Using the roll pin pun
... Read morech of correct diameter,drove the pins in that hold the valve assembly and the trigger
4. Remove firing valve and removed the driver, cleaned cylinder, cleaned driver and installed new o ring on driver piston
5.Installed new cap gasket/seal and torqued the four cap screws,,,
6. Loaded nails in roofing nailer and tested it on piece of 2X4,,worked perfect,,very important to install the driver in correct position,,,failure to do so could break the hardened steel driver
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Model Cross Reference
This part works with the following models:
ERP Number: ERP12499532
Manufacturer Part Number: 850607
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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Mail-In Recycling Rebate
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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