User Manual

LBB Series Oven Owner’s Manual MAINTENANCE
Version 15 45
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.
Test LBB Series oven functions regularly and carefully for best performance. Safety of personnel
and maintenance of your equipment may depend on the proper operation of any of the
temperature control functions.
6.4.1. Test Control Instrument
Test the Control instrument every 40 hours:
 Check that the Control instrument OUT LED is cycling ON and OFF
 Verify that the heater works
6.4.2. Test High Limit Instrument
Test the High Limit instrument every 40 hours. With the oven operating at a set temperature, set
High Limit instrument down to the setpoint operating temperature:
 The High Limit instrument is tripped when OP1 lights
 Push after adjusting the High Limit instrument back to a higher setting, or by letting
the oven temperature drop a few degrees based on the hysteresis value of the High Limit
instrument
6.5. Replacement Parts
Danger!
Do not attempt any service on this oven before opening the
main power disconnect switch.
To order or return parts, contact Despatch Service and Technical Support. When returning parts, a
Despatch representative will provide an MRA (Material Return Authorization) number. Attach
the MRA number to the returned part for identification. When ordering parts, expedite the process
by having the model number, serial number and part number on hand.
Global Headquarters
Contact
Service & Technical
Support
Despatch Industries
8860 207th Street
Lakeville, MN 55044
USA
International/Main: 1-952-469-5424
US toll free: 1-888-337-7282
Fax: [phone]
[e-mail]
www.despatch.com
Service: 1-952-469-8230
US toll free: 1-800-473-7373
Fax: [phone]
Service @despatch.com
6.5.1. Replace the Control Instrument