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The oiling instructions are on the data plate
I found a manual for Craftsman 113.225900, which is as close as I can get. It is an older belt and disc sander.
In any belt sander you clip the dustbag over the exhaust port and empty it when full. - Saves a lot of dust from flying around.
The instruction tag on my 315.22600 says "2 drops of SAE 20oil in oiler at right side of front pulley"
Try managemylife.com and click on "manuals".
98.5 "
The drive belt is a Craftsman #140294 The deck belts are Craftman #'s 180808 & 174368
Gates
I need the belt diagram
A wide belt sander has many different uses when it comes to needing to sand something. A belt sander can be used to sand down piece of wood that you need to get a nice curve on.
it is in a technical workshop
Take and set the sander on end with the cord down. The, with both hands, push the front roller towards the boc that sits between the rollers. You will hear a click. That takes the tension off the belt. Remove the old 3x21 belt with a new one. Now, while this sound strange it is what the manual suggests, take a large screwdriver and place it between the black front roller bracket and the square housing that sits between the two rollers and pry so you are pushing the pront roller back into position. You will hear another click and the spring will reposition the front roller and put tension back on the belt. Then, run the sander and turn the knob on the other side of the sander until the belt tracks correctly.