How to Troubleshoot & Repair Senco Framing Nailer

Share the joy
  •  
  •  
  •  
  •  
  •  
  •  
  •  

Senco is a major manufacturer of nail guns, including pin nailers, finish nailers and framing nailers. Framing nailers are the work horse of the framing world, making short work of frame carpentry chores. A properly maintained Senco nailer will operate trouble free most of the time, but there are a few troubleshooting tips you can use to avoid expensive repair bills. The most common problems are bad air supply, jammed fasteners and the inability to set the nails fully.

how-to-troubleshoot-repair-senco-framing-nailer

Materials Required

  • Fasteners
  • Allen wrench
  • Tool oil

Air Supply Problem

  1. Check the compressor to ensure it is turned on. Pull the release valve to discharge the pressure and restart the compressor. Allow it to fill until it stops and test the nailer again. If this fixes the problem, return to normal use, if not, continue.
  2. Disconnect the air hose before beginning troubleshooting. Pull the feeder shoe toward the bottom of the nailer along the magazine until it locks in place. Make sure there are nails in the magazine.
  • Inspect the top of the magazine for jammed fasteners. Unsnap the latch on top of the nailer and fold it open. Remove jammed fasteners with a small screwdriver, then close the top.
  1. Push the fasteners up to the top of the clip and release the feeder shoe so the spring carries it up against the fasteners.
  2. Apply three drops of tool oil into the air intake at the bottom of the nailer handle. Reattach the air hose and resume normal use. If the problem persists, see a professional tool service for repairs.

Fasteners not Seating Fully

  1. Disconnect the air hose. Inspect the magazine as outlined above. Make sure the fasteners are set with their points at the front of the clip, and adjust if needed.
  2. Check the compressor to make sure it is set at the correct air pressure. Adjust the pressure gauge as needed for optimum operation.
  • Tighten the screws holding the back vent cover on the nail gun at the top rear of the handle. Use an Allen wrench to turn them clockwise to tighten.
  1. Reattach the air hose, start the compressor and allow it to charge fully. Test the gun, and if the problem persists seek professional servicing.

How to Repair a Senco Nail Gun?

Senco nail guns increase the productivity of wood workers and carpenters. Normal wear and tear on these tools causes a few common performance issues to appear, which can usually be identified and fixed. If proper replacement parts are purchased and installed as required by the user, the Senco nail gun will provide excellent performance for many years.

  • Disconnect the nail gun from the air supply. Remove all nails or nail strips from inside the nail gun. Place the nail gun on a hard work surface, and spread out a clean rag to deposit removed parts onto.
  • Check the O ring seals that maintain high pressure conditions within the gun. Remove the head cap, then look for cracks or deformities in the head valve or head cap assemblies. Visually inspect the O rings and look for cracks or other damage that may cause an air leak from the exhaust port. Replace any worn or cracked parts. Reattach the head cap.
  • Check the O rings that pressurize the trigger system. Remove the side cover, and then look for cracks or deformities in the trigger assembly. Visually inspect the O rings and look for cracks or other damage that may cause an air leak from the trigger seat. Replace any worn or cracked parts.
  • Check the O rings that pressurize the cylinder and main power system. Remove the main cylinder, and then look for cracks or deformities in the cylinder walls or piston assembly. Visually inspect the O rings and look for cracks or other damage that may cause an air leak from the main cylinder. Replace any worn or cracked parts. Reattach the main cylinder and side housing.
  • Check the strip angle of the nails being used in the nail gun. Incompatible strip angles may exist if Senco nails are not being used. Senco nail guns require a 34 degree nail angle if nails are held together by paper components and 22 degrees nail angle if nails are held together by plastic components.
  • Disassemble the driver blade mechanism. Even with adequate air pressure, if the driver blade is slightly bent or heavily scratched it will not return completely to the neutral position, making it unable to collect the next nail in the strip. Inspect the driver blade shaft for straightness. Replace it if it is bent heavily scratched or excessively worn. Assemble the driver blade mechanism.
  • Lubricate all moving parts with a very small application of machine oil. Remove any visible rust with fine steel wool and oil. Wipe all parts with a clean rag.

Speak Your Mind

*