Maintenance And Service - Oki HCT-900 Guia Del Usuario

5. Maintenance and Service

CAUTION: Risk of electric shock from line voltage – disconnect from electrical supply
before replacement of heating element.
To Change Heater Element
Thermocouple wires
Remove air tube from the
back of the handle
a) Remove black air tube from the back of the handle.
b) Remove the three screws that secure the handle.
c) Separate hand piece.
d) Unplug heater connector and disconnect thermocouple wires.
e) Slide heater element out of heater pipe.
f) Insert new heater element into heater pipe.
g) Plug heater connector and connect thermocouple color wires properly.
h) Re-attach handle together and ensure good fit. Then install screws.
i) Insert black air tube back into place.
Changing the fuse
1. Unplug the power cord from the outlet socket
2. Change for new fuse (located on back panel):
a) HCT-900-21: Slow Acting 4A, 250V (0.5 mm x 20 mm).
b) HCT-900-11: Medium Acting 6.3A, 125V (0.5 mm x 20 mm).
c) HCT-900-10: Medium Acting 6.3A, 125V (0.5 mm x 20 mm).
www.okinternational.com HCT-900 Rev. 10/13/2005
Remove three screws
6
Heater
Element
Heater Tube
Heater
Connector