Question about Ammco Combination Disc/Drum Brake Lathe
I am a brake lathe technician.
To change the drive belt on an Ammco 4000, you must first remove the 90 degree angle PTO (power take off) gear assembly which is driven off the back of the big pulley. Two small allen head screws hold it tight.
Pull the PTO gear assembly out of the disc-feed gearbox. If there are colored shims between the gearbox and the PTO assembly, you must make sure not to loose. If they drop off, be sure to replace them with a dab of grease.
Rotate the red knob at the back of the machine and the motor assembly will unlock and rotate upwards. Replace the drive belt.
To adjust the drive belt tension properly--loosen the 3/4 inch nut on the back of the machine, and the motor will drop down. Tighten the 3/4 inch nut and then rotate the red knob back until the belt is taught.
Replace the PTO gear assembly--making the rotating part with the protruding pin is centered on the big pulley. Tighten the allen head cap screws.
Turn on the machine. If the PTO is making noise--you have not correctly is correctly. Repeat the centering process until the machine runs without rattling or vibration.
Posted on Mar 14, 2014
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Posted on Jan 02, 2017
You might try buying a manual for it. There is one on E-bay right now. might be $14.00 well spent.
Hope this helps.
Posted on Oct 28, 2009
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