[alphatad]

I am having a boat load of problems with my fsg-2460 grinder. I keep getting 400 alarms and such. Also, my table often stops halfway to dressing. I have to push the table the rest of the way. When it doesnt stop, it slams so hard into the dress posistion, that it trips more alarms !!! Any thoughts ? I have manuals, but after spending much time reading ( between running the other grinders ) I am having no such luck.

[Mitsui Seiki]

400 alarms are servo related.
Something is stuck.

[alphatad]

Like what ?

[Mitsui Seiki]

Like what ?

Remove top of the table and take a look under it.
I guess it could be a faulty servo motor as well.

[alphatad]

Did you notice it was a 24x60" surface grinder ? ? ? ? ?
Taking the table off is easier said than done..

[Mitsui Seiki]

Did you notice it was a 24x60" surface grinder ? ? ? ? ?
Taking the table off is easier said than done..

Nope,I missed that.
Forget the table unless you have a forklift.
Something is sluggish so try to remove some covers and take a look.
A lead screw is probably moving the table.See if it's dry.

[alphatad]

Nope,I missed that.
Forget the table unless you have a forklift.
Something is sluggish so try to remove some covers and take a look.
A lead screw is probably moving the table.See if it's dry.

I have the forklift, and have removed table before, just not very much fun. The table is hydraulic.

[Mitsui Seiki]

Disconnect the hydraulic hoses and move the table.
If it's easy to move then it's the hydraulic system.

[alphatad]

Right now, i can move the table by hand with everything hooked up normally.

[Mitsui Seiki]

Maybe it's a hydraulic valve?

[alphatad]

Maybe it's a hydraulic valve?

See, that's what i was thinking.....

[alphatad]

I removed all electrical connections from the hydo box to the grinder. Still problems. I think i might try the hoses.

[Mitsui Seiki]

Yes, and it can be the pump.

[alphatad]

What does the prop amplifier do ? i know it has do do with the hydro table. When we were having stopping problems, a little bit of adjusting on it helped.

[Mitsui Seiki]

I'm not sure.I think it controls the valves.

[Mitsui Seiki]

Have you checked to see how much pressure the pump delivers.

[alphatad]

The pump is good. Lots of pressure according to the guage.

[Mitsui Seiki]

Pump's good,table's good. It has to be one of the valves.A check valve maybe?

[alphatad]

I figured it was the directional control solinoid, so i removed it, and everything else that controls the tables movement. I am going to have it checked out. I turned the grinder back on, and still the alarm....

[Mitsui Seiki]

Ok,post back when you have had the solinoid checked out.
It'll be interesting to know what caused the alarms.