Help! – our No 4 sounds like a freight train and can be heard two floors up.
Thinking the sound was possibly coming from the ink drum or chain, I removed the belt that connects the motor to the gear box, but no luck. The motor itself is quite (I disconnected it from the press and turned it on while it sat on the floor) but when attached to the press, it causes vibrations that make the metal cabnit resonate and the floor shake. The motor appears to be connected as per the diagram in the manual and the bolts that hold the motor base onto the underside of the gearbox have rubber washers.
Is anyone familiar with this problem? Would adding rubber to the points of contact where the motor/gearbox assembly attaches to the press frame help?
My suspicion is that the motor itself is to blame. When I’ve put my hand on it while it’s winding down, it feels as if the shaft is acentric – creating a wobble. The motor is a Dayton model 5K460A, 3/4 hp, 1725 rpm. Anyone have the same motor?