Despatch RAD Series - Manual (Page 30)

M AINTENANCE RAD Oven Series Owner ’s Manual
30 Version 1
Copyright © 2012 by Despatch Industries.
All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any
means including graphic, electronic, or mechanical methods or photocopying, recording, or information storage and
retrieval systems without the written permission of Despatch Industries, unless for purchaser's personal use.
6.3. Check Fans
Check fan operation by closely observing for abnormal movement or sound. Irregular noise or
movement may mean the fan needs repair or replacement. Listen for any irregular noises
coming from the fans.
6.4. Lubrication
Lubricate all door latches, hinges, door operating mechanisms, and wear surfaces to ensure easy
operation.
6.5. Check Safety Controls
Make certain the oven controls are free of dirt and debris and function properly.
6.6. Check High-Limit Controller
The Protocol 3 controller has an integrated high limit function which disables the heater output
when tripped. Check the High Limit controller by:
1. Set the Hi-Limit setpoint below the process temperature. Refer to the Protocol 3 manual as
necessary.
2. The oven should heat and trip the High-Limit controller as it reaches the high limit setpoint.
3. If not, contact Despatch.
6.7. Replacement Parts
Contact the Service Products Division at Despatch to order or return parts. The Service Products
features our Response Center for customer service. A Despatch representative will provide you
with an MRA (Material Return Authorization) number that must be attached to the returned part
Danger!
Do not attempt any service on this equipment without setting the
main power Disconnect Switch to OFF. Disconnect all power
sources before making repairs. Contact with energized electrical
sources may result in serious injury or death.