BH 420 the gears ASSY to break fast

[mosiad]

I have a 420 bh
and every 50,000 sheets should be about to change the gear ASSY
I do not know what to change!!!!!!
ASSY go easy.
why they break?

[fixthecopier]

Not sure what you mean. Are you saying that you have a part breaking every 50,000 prints, or that you believe that you have to change a certain part every 50,000 prints.

[mosiad]

Not sure what you mean. Are you saying that you have a part breaking every 50,000 prints, or that you believe that you have to change a certain part every 50,000 prints.

device has 700,000 sheets
last 300,000 sheets have changed 6,7 times the set of all gear from assy.

[copytechman]

Um.. which gear ass'y are you referring to? There are many in that machine!
Regards!
A.

[fixthecopier]

Which gears are breaking? Developer box? paper feed?

[ni311]

I believe it's the gear assy that turns the fusers...
If it's breaking too often, try putting someone else changing it...

[harry2007]

gear

i think -is about toner conv gear -anyway-all the plastic gear that are in contact with metal gear must be greased. Put some silicon vaseline .
Noroc!

[mosiad]

I believe it's the gear assy that turns the fusers...
If it's breaking too often, try putting someone else changing it...

Sorry.
problem is wiht gears from that fussing ASSY

[mosiad]

i think -is about toner conv gear -anyway-all the plastic gear that are in contact with metal gear must be greased. Put some silicon vaseline .
Noroc!

moroc bun!!

[harry2007]

For the best results you must be use in the future the gear for bizhub 500. It's little bit different ,you'll be need for a spacer (4mm), but your's problem will be ended.
and don't forget -change regullary oil web unit(200k)

[ni311]

Bizhub 500 & 420 are having the same parts manual...

[harry2007]

gear

Yes,is true,is almost same parts manual -but just yesterday i was changed this gear and is different like the original gear (on the machine) the pin hole is 4 mm deeper. maybe is a new -modif. model.

Unfortunatelly i can't find the bag with parts code for this new gear .

[harry2007]

new gear

Description
Fuser driver gears do not fit onto the existing fuser drive panel/G assembly (p/n 50GA15070F).
Solution
CAUSE: The drive panel has been modified and the part number for the fuser gears have been changed.
SOLUTION: Refer to attached Bulletin Number 6123 for the correct part number for the specific fuser drive gear.