Roofing Nailer driver won't return
Will shoot one nail and then the driver will not return. Just got this nailer at a garage sale in Florida, was told it worked fine, but does not appear to be the case now. Can anyone give me instructions on how to repair. Thanks so much.
Tools & Hardware - Others - Porter Cable - RN175 Roofing Coil Nailer
Answers & Comments
I too have a Model RN175 Type 1 which will fire one fastener without retruing the driver. This Type 1 does not have the selectable trigger (that allows alternating between single shot and automatic firing). So the previously posted solution (selector mid-way between SS and AS) doesn't apply here. I did a rebuild of the body and replaced the trigger assembly. Still no joy.
I called Porter Cable customers service and technical engineering (888-848-5175 and they suggested check the following items:
1) free movement of the head valve piston and good condition of the spring and o-ring
2) the condition and position of the check seal. This is a rubber sleeve with a lip that must slide up onto the anodized cylinder and COVER THE HOLES. (It has to be installed AFTER the big white plastic cylinder spacer is installed.)
3) the exhaust port to make sure that there was not trash stuck up in there
4) correct air supply pressure
Turned out for me that it was item #2 that was my problem. The rubber sleeve was not stretched up onto the anodized cylinder. This was probably due to initially hitting something hard when nailiing (blew it out of position) then my reassembling it incorrectly.
Hope this helps!
Great nail gun, great company, great customer service!
Have you got mode in sigle shoot or automatic if inbetween proable cause. Cannot exactly explain in detail how it shoul work except same air to drive pulls plunger back to TDC.
jj505