Abnormal (Chirruping) Noise Of The Second Delivery Drive Assembly Of The Main Unit Due To Deformed Gear - Canon imageRUNNER ADVANCE C3330 Series Troubleshooting Manual

Copier Color | iR-ADV C3330/C3325/C3320 Series |
Abnormal (chirruping) noise of the second delivery drive
assembly of the main unit due to deformed gear
[Symptom]
the machines prior to the Countermeasure cut-in serial number in factory described below the second delivery drive assembly of
the main unit may emit a abnormal sound.2
[Cause]
Tightening the screw to fix the cover of the second delivery drive assembly deforms the same cover slightly. As the gear is tilted
from this deformation, the shaft of the gear comes in contact with the hole of the cover and results in the above mentioned
symptom.
[Service work]
A. Applying grease onto the gear
Prepare a quick-drying grease HANARL UD-321 (FY9-6037-000) and use it in the work following the procedure.
[Note] Molykote EM-50L (HY9-0007-000) is the alternative as grease to use.
1) Open the right door of the main unit.
2) Apply the grease to the portion[a] of the second delivery drive unit that is between the gear shaft and the cover retaining the
shaft.
[Note] In using Molykote EM-50L, apply it in an amount of about a grain of rice (20mg) on the outer circumference of the shaft.
3) Close the right door of the main unit.
B. Replacing with the new type gear
Prepare the new type gear (FU2-0093-000)[1] and perform the work following the procedure.
[Note] The actual color of the new type gear (FU2-0093-000) [1] is black.
1) Open the right door of the main unit.
2) Remove the second delivery unit referring to the service manual.
3) Disconnect the connector [1] and remove the 2 screws [2] to detach the second delivery drive assembly.
[Notice] Pay attention not to bend or disconnect cables.
115