Ricoh FT7770 Service Manual page 178

5. Open the top unit then remove the fusing knob [A] (1 screw: reverse
thread), cover [B] (3 screws), and the oil bottle [C]. Remove the clamp
[D] (3 screws) which secures the fusing unit and the duplex tray.
6. Turn the duplex tray handle [E] to the horizontal position, pull out the
duplex tray, and remove the two strips of tape [F] securing the duplex
unit covers.
of tape securing the bottom plate.
7. Unscrew the oil bottle cap [G], and fill the oil bottle with silicone
oil. Do not overfill the bottle.
is supplied to the oil sump [H] by pressing the oil supply lever [I]
against the sleeve of the oil pump several times.
8. Rotate the pressure cam shaft [J] counterclockwise about 90° to apply
the pressure between the hot roller and the pressure roller.
9. Reinstall the fusing unit cover and the fusing knob. Close the top
unit.
Open the duplex unit covers and carefully remove the strip
Then reset the duplex unit.
Reinstall the cap. Confirm that oil
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30 April, '89