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Product Description
?O-rings are made to contain thousands of PSI pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness. rnrnThere are many causes for O-Ring failure. The most common among power tools are: • <u>Extrusion and Nibbling</u> - The 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 it too rough, contains grit or is too smooth to allow lubrication. • <u>Over Compression </u> - The 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> - The O-ring has a pitted or cracked surface, and is often flattened on both sides. Caused by temperature exceeding o-ring capacity. • <u>Weather/Ozone Cracking</u> - The O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching (greater that 5%) causes similar cracking.
Frequently Purchased Together
?Troubleshooting
- DeVilbiss
- Craftsman
- Porter Cable
- DeWALT
- Black and Decker
- Stanley
- Bostitch
- Compressor
- ACG-45
- PACG-45
Videos For installing this part.
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Customer Part Reviews
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Hello Sammie, Thank you for your inquiry. We would recommend checking the pressure switch, the safety valve, the regulator, the o-rings (which also come with the valve plate kit) and the piston seal. Check for any visible damage and you can test the pressure switch with a multimeter. If you are unfamiliar with how a multimeter works, we have a video on how to use one. Good luck with your repair. https://www.youtube.com/watch?v=Lx74qIn3YB4
Hello Steve, thank you for your question. No, the plate does not come with either of the Orings A03856 and ACG-45. Good luck with your repair.
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.
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Compressor was not building pressure over 89 lbs.
Mike from RICHWOOD, Ohio
- Difficulty Level:
- Easy
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Screw drivers, Socket set
Dewalt 200 PSI compressor would not build up pressure. After removing cover noted one of the four head bolts was broken and the o-ring was protruding a bit.
Glenn from Exeter, New Hampshire
- Difficulty Level:
- Easy
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Socket set
2. Removed head cover by removing the 3 remaining bolts.
3. Drilled out broken bolt.
4. Replaced the two internal o-rings on either side of head cover.
5. Installed head cover using 4 bolts (used loctite to keep bolts from backing out during operation).
6. Re-in ... Read more stalled cover.
7. Restarted compressor. No problems.
Head Bolts Broken off
Earl from Bloomer, Wisconsin
- Difficulty Level:
- Difficult
- Total Repair Time:
- 1- 2 hours
- Tools:
- Pliers, Screw drivers, Socket set
Compressor would not build pressure, also external regulator leaked.
William from Worcester, Vermont
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 1- 2 hours
- Tools:
- Screw drivers, Socket set, Wrench (Adjustable)
On low pressure cylinder:
- Removed valve plate assy, piston/rod, and cylinder.
- Installed new cylinder.
- Replaced piston seal: removed piston top, replaced seal on piston, put piston top back on piston and hand tightened screw a bit, inserted piston in cylinder, finished tightenin ... Read more g piston top screw.
- Attached piston rod to crank, replaced fan.
- Placed and tightened new valve assembly with new o-rings.
Removed/replaced external regulator.
Did not address high pressure side, parts are no longer available.
Still, compressor does build pressure good as new.
Compressor was not building any pressure.
Sergio from Moreno Valley, California
would\'nt build up air
John from TOWANDA, Pennsylvania
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Screw drivers, Socket set, Wrench set
is obsolete. put back together works just fine now builds up air like it should easy fix
Head bolt for compressor broke.
James from JAMESTOWN, North Dakota
- Difficulty Level:
- Easy
- Total Repair Time:
- More than 2 hours
- Tools:
- Nutdriver, Socket set, Wrench (Adjustable)
2. Drill out broke head bolt
3. Replaced valve body with new one and new gaskets
4. Reassembled compressor head using new head bolt
no air pressure for compressor
Rob from Lebanon, Indiana
moisture had rusted reed valves(intake) on valve plate
JULIAN from YANCEYVILLE, North Carolina
Wouldn\'t build pressure
glen from casey, Illinois
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Screw drivers, Socket set, Wrench set
2. Replaced head, head gasket, and o-rings
3. Re-assembled, still wouldn\'t build pressure
4. Ordered new piston and cylinder assembly
5. Installed assembly and unit works like new
Should have known to replace piston and cylinder at initial disassembly because it was showing ... Read more high wear.
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Model Cross Reference
Manufacturer Part Number: ACG-45
| Brand | Model Number | Description |
|---|---|---|
| DeVilbiss | 100E3D-1 | Compressor - 1 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 100E4D | Compressor - 1 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 100E4D-1 | Compressor - 1 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 100E4D-2 | Compressor - 1 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 100E8AD-2 | Compressor - 1 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 100E8AD-3 | Compressor - 1 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 150E4D-1 | Compressor - 1.5 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 150E4D-2 | Compressor - 1.5 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 150E4TTD | Compressor - 1.5 Horsepower-Single Cylinder Air Compressor |
| DeVilbiss | 150E4TTD-1 | Compressor - 1.5 Horsepower-Single Cylinder Air Compressor |
| Craftsman | 16871 | Compressor - Air Compressor |
| DeVilbiss | 1WC94 | Compressor - Construction Compressor |
| DeVilbiss | 1WC95 | Compressor - Workshop/Auto Compressor |
| DeVilbiss | 3JR71 | Compressor - Workshop/Auto Compressor |
| DeVilbiss | 4UP72 | Compressor - A 6.0hp 25g Vp Pl 1stg 12 |
| DeVilbiss | 4UP73 | Compressor - A 3.5hp 20g Hp Tv 1stg 12 |
| DeVilbiss | 4UP74 | Compressor - A 3.5hp 20g Vp Tv 1stg 12 |
| DeVilbiss | 500TVE60V-2 | Compressor - Air Compressor |
| DeVilbiss | 5Z598C | Compressor - A 2.0hp 3g Hd Pl 1stg 120 |
| DeVilbiss | 66-651 | Compressor - Air Compressor |
| Craftsman | 919-15445 | Compressor - A 1.5hp 4g Ss Pl 1stg 120 |
| Craftsman | 919-16345 | Compressor - A 1.5hp 4g Pc Pl 1stg 120 |
| Craftsman | 919-16500 | Compressor - A 5.0hp 25g Hp Pl 1stg 12 |
| Craftsman | 919-16511 | Compressor - A 6.0hp 33g Hp Pl 1stg 12 |
| Craftsman | 919-16512 | Compressor - A 5.0hp 20g Hp Pl 1stg 12 |
| Craftsman | 919-16513 | Compressor - A 6.0hp 30g Vp Pl 1stg 12 |
| Craftsman | 919-16518 | Compressor - A 5.5hp 25g Hp Pl 1stg 12 |
| Craftsman | 919-16519 | Compressor - A 5.5hp 25g Vp Pl 1stg 12 |
| Craftsman | 919-16523 | Compressor - A 5.5hp 25g Vp Pl 1stg 12 |
| Craftsman | 919-16551 | Compressor - A 6.0hp 30g Vp Pl 1stg 12 |
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.