User Manual
Stackable LCC/LCD Oven Owner’s Manual MAINTENANCE
Version 1.1 43
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. Maintenance
Do not attempt any service on this oven before opening the main power disconnect switch.
6.1. Checklist
Keep equipment clean. Gradual dirt accumulation retards airflow. A dirty oven can result in
unsatisfactory operation such as unbalanced temperature in the work chamber, reduced
heating capacity, reduced production, overheated components, and the like. Keep the walls,
floor and ceiling of the oven work chamber free of dirt and dust. Floating dust or accumulated
dirt may produce unsatisfactory work results. Keep all equipment accessible. Do not permit
other materials to be stored or piled against it.
Protect controls against excessive heat—particularly controls, motors or other equipment
containing electronic components. Temperatures greater than 51.5°C (125°F) should be
avoided.
Establish maintenance and checkup schedules. Do this promptly and follow the schedules
faithfully. Careful operation and maintenance will be more than paid for in continuous, safe
and economical operation.
Maintain equipment in good repair. Make repairs immediately. Delays may be costly in
added expense for labor and materials and in prolonged shut down.
Practice safety. Make it a prime policy to know what you are doing before you do it. Make
caution, patience, and good judgment the safety watchwords for the operation of your oven.
Inspect oven seals if pressure readings decrease over time (Refer to Section 3.3.4 as well as
Table 2, Columns D and/or E)
6.2. Lubrication
Fan motor bearings are permanently lubricated. All door latches, hinges, door operating
mechanisms, bearing or wear surfaces should be lubricated to ensure easy operation.
6.3. HEPA Filter Replacement
Refer to section 4.3 for filter replacement.