Ricoh FT5580 Service Manual page 191

5. Remove the upper rear cover (4 screws), the upper left cover [A] (2 screws), and the
scanner lock plate [B] (1 screw).
NOTE: Reinstall the screw for future use. Do not throw away the scanner lock plate. It
is necessary to reinstall it if the copier is to be transported long distances (by
vehicle).
6. Remove the main PCB shielding plate [C] (2 screws), and move the jumper connector
(JPSW 191) on the timer PCB [D] from the upper (printed "OFF") to the lower position.
Then, reinstall the removed covers if no peripherals are to be installed.
7. Remove the fusing unit, then remove the fusing unit cover [E] (2 screws, 1 shoulder
screw).
8. Prime the oil supply pad [F] with silicon oil [G]. Then, fill the oil tank [H] with silicon oil.
9. Manually operate the oil pump lever [I] and confirm correct operation and the overall con-
dition of the silicon oil supply assembly. Then, reassemble the fusing unit.
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