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Hitachi NR65AK Round Head 1-1/2-Inch to 2-1/2-Inch Positive Placement Nailer Questions & Answers
How do you remove piston cylinder to change o ring
Easy to remove the cylinder and piston/driver. Remove four head bolts and lightly tap head to release gasket. Push out driver by inserting rod thru nose then remove spring retainer holding the cylinder in place.. With retainer removed the cylinder should pop out. Sometimes the retainer will cause a bur to form on the body of the mailer making it s bit more difficult to remove. Good luck
How do I remove the cover on my Hitachi air compressor
First, you have to determine how it is attached usually they are screwed or bolted into place or simply held into place by clips or pressure. But there are many different models so please post the model of your machine so it can be identified or even a photo.
Ec 12 Hitachi air compresser not building up air pressure
So the first (most obvious but sometimes overlooked) thing - check to make sure the tank drains are closed.
Listen for a leak at the pressure switch - it will continue to leak after the compressor shuts off. If this is the case then you need a check valve (Part # 53A on the breakdown)
If it builds pressure but not enough to shut off and there are no leaks I would look at the valves located in the head (Part # 14 on the breakdown) - piston rings are not a normal failure part on this model but could also cause this.
Air pressure on my air compressor
This problem is usually caused by reed valves or blown gasket between head and valve plate. Easy to check. After the compressor reaches 45 to 50 psi, with compressor still running, remove the air filter and feel for good suction at the intake port. If the air seems to be blowing out of the intake, then valves are bad. If you feel good suction at the intake, then air is leaking from the discharge tubing or other fittings. Good luck
Use of Hitachi EC510 air compressor
Pressure gage A shows the pressure in the tank. Pressure gage B shows what you have adjusted the output pressure to be. If it is reading 0psi and it is new it is probably because the manufacturer has set it at that level. You have an adjustment valve on the front of your compressor. Rotate it until you see the pressure start to rise then keep going to where you want it set at.
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