SOURCE: craftsman compressor will not come up to pressure
Don"t worry, even the best techs overlook a thing or two during repairs. Lets go over some basics to determine where fault is located. You will need to do some simple tests. If there are leaks the compressor may not reach set pressure. I use soapy water on all connections and on the head/headvalve while compressor is running. Make repairs as necessary. If still low pressure, while compressor is running and has reached max obtainable pressure (still low 70 - 80 lbs), carefully place finger over intake port hole (remove filter). If the compressor is pumping normally but leaking there will be ample suction at intake and cause the compressor to speed-up when intake is obstructed with finger. If you feel plenty of suction and no visible (soapy water) leaks, then the problem is probably the cylinder /ring is not correctly seating and air is leaking past cylinder. Make sure that the cylinder /piston ring is properly alighed and that the lip on the vinyl ring is up toward the head. If you do not feel suction but rather air seeming blowing out of the intake, then the problem is the headvalve plate/reed valves are leaking. The reeds must seal perfectly on their seats and not bent or have obstruction. Replace as necessary. Only one other thing to check and that is the intank check valve. Easy to check. Run compressor till you have about 70 lbs in the tank then unplug compressor. Carefully loosen the inlet hose at checkvalve and listen for air leaking out of tank. If leaking replace checkvalve. Use caution when removing head to try and save the gaskets. Good luck on your repair and email if you have other question.
SOURCE: We have a 30 gallon; 6HP Craftsman Compressor;
DOES IT RUN AND NOT MAKE AIR? BUZZ OR MAKE ANY NOISES AT ALL? DO YOU HAVE POWER TO IT? HAS IT BEEN IN THIS LOCATION AND WORKING FINE TILL NOW? NEED MORE INFO. JODY
SOURCE: My craftsman air compressor model 919 16737 1.1 hp
Probably the check valve has failed. It apparently is where the pipe goes into the tank from the compressor.
SOURCE: NEED MANUAL FOR A MODEL CRAFTSMAN PROFESSIONAL AIR
go to Managemyhome.com and typing in your model number I added a zero to it the manual I found is 36 pages long. If I have helped you with your request would you please rate this response accordingly and thank you.
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