Ricoh A250 Service Manual page 732

BULLETIN NUMBER:
APPLICABLE MODEL:
GESTETNER - 3218
RICOH – AFICIO 180
SAVIN – 9918DP
SUBJECT: STRIPPED SCREW HOLES IN FUSING UNIT
SYMPTOM:
The screw holes in the Pressure Roller Case are stripped after rebuilding the Fusing Unit.
CAUSE:
The Fusing Unit Base is made of plastic. If too much torque is applied to the screws that secure the
Pressure Roller Case and Hot Roller Unit, the plastic mountings for the screw holes will become stripped.
SOLUTION:
Since the screw holes in the Pressure Roller Case are now stripped, larger screws need to be used. Replace
the Tapping Screws M3x10 with Tapping Screws M3x14 (P/N 04503014B) and apply only sufficient torque to
the Screws M3x14 when tightening or loosing them. The metal screws tend to grind or strip the plastic screw
holes. Therefore, be careful to apply a gentile amount of torque to these screws.
RICOH GROUP COMPANIES
TECHNICAL SERVICE BULLETIN
A250/B001 – 014 02/18/2000
CONTROL NO. 019ABW