MP C6502 pcdu bk is not removable

[aktasson]

Hi there!

Has anyone ever had that? The black pcdu unit is not removable from the machines frame/holder. It stops/blocks after 1 cm.

Thanks.


Aktasson

[davel]

Re: MP C6502 pcdu bk is not removable

You have a bad bearing on the drum shaft and it has damaged shaft, good luck getting it off and finding replacement, I had to replace whole drum plate.

[mikadonovan]

Re: MP C6502 pcdu bk is not removable

I had that happen before, and I believe I had to remove the other pdcu's and take the front cover off the offending unit before I could access what was actually causing the problem.

[aktasson]

Re: MP C6502 pcdu bk is not removable

You have a bad bearing on the drum shaft and it has damaged shaft, good luck getting it off and finding replacement, I had to replace whole drum plate.

My action without success was to sanded the shaft with sandpaper as possible to the point where it went, I used penetrating lubricant oil MTO300 carefully to the bearing from the frontside and used special grease. I've probably assembled and disassembled everything five times and more. No luck ((( The machine is running normally.
Next week is the next service visit and I hope the oil and grease do some work around the pcu bearing. Otherwise it has to be disassembled from the back side.

[aktasson]

Re: MP C6502 pcdu bk is not removable

I had that happen before, and I believe I had to remove the other pdcu's and take the front cover off the offending unit before I could access what was actually causing the problem.

front cover off? How do you mean?

[Timmytronic]

Re: MP C6502 pcdu bk is not removable

front cover off? How do you mean?

I have had this a few times and once had to replace the drums front plate as it happened to the bearing on that but basically as said before it is the bearing on the shaft. It get seized up. Penetrating oil worked for me but I had to take the front plate of the black unit as if you were splitting the dev unit from the drum. In doing so it gives you more manovability. Once off cleaning the shaft and oil you can use the bearing again normally.

Good luck and hole hope it helps.

[totoro]

Re: MP C6502 pcdu bk is not removable

I had this happen to me with a c6501 K drum. I took a small flat file and was able to get the burr off and after cleaning the shaft of debris was able to get the drum off. I then smoothed the shaft with fine grit sand paper and cleaned and oiled the shaft. I replaced the drum and never had the problem again. I now check and smooth drum shafts when I remove drums for any reason.

[aktasson]

Re: MP C6502 pcdu bk is not removable

but I had to take the front plate of the black unit as if you were splittin

Do you mean the drum stay front?

[slot]

Re: MP C6502 pcdu bk is not removable

We have had one do this and found if you tap the drum shaft with a hammer (normally said as a joke) and pull the unit forward at the same time it will come out
The said copier had 3 visits befor we could get the drum unit out I even trid getting my hand behind the unit from the bypass door and pulling and the only way it came out was with a tap on the shaft with a hammer.

[mikadonovan]

Re: MP C6502 pcdu bk is not removable

front cover off? How do you mean?

Drum unit front cover on a c5502. My issue was not with the bearing, but if I run into this issue on this model, I know what to do now. Excellent thread.

[Stormhammer]

Re: MP C6502 pcdu bk is not removable

You can remove the shaft and the motor from the back. Order all parts that are bearings or contain bearings for the PCU. You'll also want the drum shaft since it has a burr on it preventing the shaft from sliding through the PCU. If its allowed, order a motor as well. Last time I did this the motor came apart on me in a way I couldn't repair.

[davel]

Re: MP C6502 pcdu bk is not removable

Use a file to remove the burr on the drum shaft until you can remove the PCDU.

[spaceman99]

Re: MP C6502 pcdu bk is not removable

Hi there!

Has anyone ever had that? The black pcdu unit is not removable from the machines frame/holder. It stops/blocks after 1 cm.

Thanks.


Aktasson

hi.
all that is need is a 65mm (2 9/16 ) bearing puller and triflo oil. Takes about 30mins to get machine back up and running. If PCU is not damged.

Stage 1 : open the PCU as far as you can try and get triflow oil on to bearing and leave. we left one over night and came out the next morning without any effort. ( pushed teh bearing back ina nd has worked ever since.
Stage 2: If this fails take of the front cover of the PCU and use the Bearing Puller to pull it off the drum shaft.
Stage 3: Inspect the PCU bearing if good after cleaned up reuse. It will be highly likely your need a new PCU or you can use a bearing out of an old one.;
Stage 4: Clean drum shaft with dry cloth.

Fault caused by Plactic bearing housing waering causing the bearing to move.

Not a big job, just a little bit strange if you never had it.

good luck !

[aktasson]

Re: MP C6502 pcdu bk is not removable

Ok, thanks guys. For the first step the problem is solved. Thanks all for the helpful tips.

[Lagonda]

Re: MP C6502 pcdu bk is not removable

Just started to see this problem. Now part of techs service routine to put dob of bearing grease on shaft to help solve the bearing chattering away and digging its self a groove.