My 300 and its idiosyncrasies

There are square lugs on the front half to aid in adjusting with a punch however it is cast iron so don't overdo it. A brass punch will help you to not hit it too hard.

You may not need to adjust it if you still have the adjustable sheave on the generator.

Neither belt has to be tight, just tight enough to spin the appropriate parts. Overtightening will wear out the bearings quicker.

karl f

A former owner of my 300 Utility twisted off the set screw (below the surface of the casting) on the water pump pulley. After an EZ-Out snapped off, I had to carefully cut out off a piece of the casting to remove the remains of the EZ-Out and the screw. Fortunately, it looks like I salvaged enough threads to install a new screw. Then it took a week-long soak and a couple of hours of careful tapping/whacking to loosen the pulley in order to remove it and clean the dirt and rust off the threads.

If that’s supposed to be a practical design for a machine that works outdoors, I must be missing something. It seems to me an adjustable or spring-loaded idler pulley would have been the way to go.

Mark W. in MI