20 Most Recent Chicago Pneumatic CP7556 Mini Straight Die Grinder Questions & Answers

Typically this occurs from a lack of air pressure. So check the psi from your supply. If its below 90 psi you can expect a lack of power and the wheel to slow. Another thought is their could be build up inside the grinder. Recomended Preventitive Maintiance suggest a few drops of oil before use.

Chicago... | Answered on Nov 05, 2013

Remove the head and brushes, then pull the rotor out with your fingers.

Chicago... | Answered on Jul 28, 2014

Ball joints are bad - - Have them replaced or replace them. Also look for bad tire wear.

Chicago... | Answered on Sep 26, 2011

Request the manual from Rockwell.

Grinders | Answered on Dec 26, 2019

Google (brand)(55-3584-2)(manual) without parens PR contact "Brand" directly to request.

Grinders | Answered on Dec 22, 2019

Mmmm... that's a little more complicated. If you have a continuity / resistance meter, we can noodle it out, though.

First, are the two white wires the ONLY wires coming from the motor? I suspect they are - that's not in conformance with any accepted color code, but it'll work. For the rest of this, I'll assume that the two white wires are the only ones from the motor.

You'll need to meter the switch itself, with no wires connected to it. In the OFF position, you shouldn't find continuity between any of the four switch contacts. In the ON position, you should find continuity between two pairs of contacts.

The black wire from the power cord should go to ONE of the two switch contacts in a pair that have continuity with the switch turned ON. One (either) of the white wires from the motor should go to the other switch contact IN THAT PAIR.

That leaves you with one more pair that has continuity with the switch turned ON. The white wire from the power cord goes to one of those, and the second white wire from the motor goes to the other one.

When you have it all wired up, plug it in & turn it on. If it's not right, it should immediately pop your circuit breaker. If it IS right, it should run fine.

If it pops your circuit breaker, open it back up and swap one wire from the power cord and one wire from the motor.

Grinders | Answered on Oct 06, 2019

One turn.

Grinders | Answered on Mar 05, 2019

Find a Single Pole Single Throw (spst) toggle switch at the local hardware store rated for the load of the grinder. Wire the switch in place and viola you are done! Machines are stupid;they can tell the difference between an oem part and a replacement.

Grinders | Answered on Jul 11, 2018

You can get a replacement toggle switch at any hardware store look in the electrical department.

Grinders | Answered on Jul 11, 2018

I cleaned all the wiring connectors etc and used a 4-way extension cord with an i/o switch and thermal/arc breaker surge protector thingy. I had a piece of thick cable with a molded three prong plug which I had removed from a dead paper shredder (I think??) and connected the ground to the case (previously not connected) the black to the black and white to the white. I taped the connections and plugged the test cable into the extension thingy with its switch off and plugged it into the wall outlet. Then, with the grinder switch on, I gingerly switched on the extension thingy and the grinder (sans all moving parts) ie just the motor case and spindle (held securely in the B&D workmate) and viola(!) it worked fine and built up to very fast. I switched off the grinder switch and the motor slowed, taking an age to come to rest.
Then, I fitted a grinding wheel on the left hand thread end, tightened everything and retested, using the grinder switch to start it and it spun really fast.
Soooo, I guess the secure ground is an essential feature of a capacitor induction motor. I checked some old furnace motors that were "maturing" in the basement and they had no capacitor but only 2 wires...
I am now trying to remember which parts came off last and put it all back together. I plan to test it each time I put a part back...just in case. I hate it when you fix something on the bench and when rebuilt, it won't work...don't ask about the electric starter on the snowblower..not a happy puppy!
Please, pretty please and then some, do tell me if my "fix" is wrong and I could risk all kinds of nastiness.

Grinders | Answered on Jun 13, 2018

Jet 577102 is a bench grinder with 1HP motor. It has got guards on the grinding wheel. Dust vents and guard makes the grinder makes it an efficient grinder. 115 Volt is needed to run this high performance grinder.

Grinders | Answered on Jun 09, 2018

Sometimes it could be like this contact by the centrifugal interrupter or the powerswitch or startcapacitor (only if its buzzing) an other kind of relay switch it should be simple to measure it .but to adjust it for time release can be ??.

Grinders | Answered on Mar 12, 2018

To convert it its possible more expensive then buy an other grinder but there is some trick to connect in serial on the powercord a light bulb on a special choosen ability differs on the RPM or use a variable power resistor also in serial connection between on one of the 2 wires on the powercord.

Grinders | Answered on Feb 28, 2018

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    Grinders | Answered on Jul 04, 2017

    The dresser wheel is applied strait onto the grinding wheel when you get ridges & valleys on the front of the grinding wheel to make it straight again.

    Grinders | Answered on Mar 15, 2017

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