10
Maintenance
place unit on its side.
3. Unplug power supply cord from fan motor.
4.
Remove screws which hold fan motor and grill to the control box cover and remove fan.
5. Once removed, clean fan grill and control box cover using warm soapy water.
6. Put replacement motor and grill in place and secure to control box cover with screws previously removed.
7.
Reconnect power supply cord to fan motor.
8. Replace back panel and enclosure.
9. Connect unit to power source, reinstall the crumb tray and test unit for proper operation.
REPLACING BELT DRIVE MOTOR
1.
DISCONNECT POWER SOURCE.
2. After unit has cooled, remove the crumb tray and turn unit over so the bottom is facing upward. Never place
unit on its side.
3.
Remove the control box cover which contains the fan motor.
4.
Remove the cover that will expose the drive chain and sprockets.
5.
Remove the sprockets from motor shaft, using an Allen wrench and loosening the set-screw.
6.
Remove the wire from terminal block connecting the drive motor to the internal wiring.
7.
Remove screws holding motor in place and remove motor from unit.
8.
Put new motor in place and attach loosely with mounting screws.
9.
Replace sprocket on motor shaft.
NOTE: The two sprockets must line up flush with each other, so the chain does not twist any during
operating. Also the hub gets installed closest to the motor.
10. Slide motor unit the drive chain has about 1/4” slack when lightly pushed
at the center of its top open run. (See chain tensioning illustration.)
11. Tighten screw to secure motor.
12.
Rewire leads.
13. At this time you may plug unit in and test for proper operation prior to
reinstalling panel and turning unit back over onto its feet.
14. If unit is working correctly, turn unit off and unplug unit completed.
15.
Reinstall side panels and control box cover. Place unit back into its upright
position. Reinstall the crumb tray.
16. Connect unit to power source and test unit for proper operation.
CLEANING AIR INTAKE ONCE A WEEK
1.
DISCONNECT POWER SOURCE.
2. Place unit upside down.
NOTE: you may damage the heater tubes by placing unit on its side.
3. Use a vacuum cleaner and or a damp cloth to clean the air intake. The procedure should be done at least
once a week.
