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UM Twin Tub
Preventative Maintenance
www.comlaundry.com
Part No. 10-04-103
December 2004
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Table of Contents
Daily............................................................................................................................................................................2
Weekly ........................................................................................................................................................................3
Monthly ......................................................................................................................................................................4
Care of Stainless Steel...............................................................................................................................................6
Daily Preventative Maintenance Checklist .............................................................................................................7
Weekly Preventative Maintenance Checklist..........................................................................................................7
Monthly Preventative Maintenance Checklist........................................................................................................8
IMPORTANT: Replace all panels that are removed to perform maintenance procedures. Do not operate the
washer-extractor with missing guards or with broken or missing parts. Do not bypass any safety devices.
© Copyright 2004, Alliance Laundry Systems LLC
All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without
the expressed written consent of the publisher.
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Daily
IMPORTANT: The lid lock should be checked daily to ensure proper operation. Also check that all safety
and instruction stickers are on the machine. Any missing or illegible safety and/or instruction stickers should
be replaced immediately.
1. Clean the main body, front and side panels with a mild detergent
and rinse them with clean water.
2. Clean the lid of all foreign matter.
3. Leave the lid open at the end of the day to allow moisture to
evaporate.
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Weekly
1. Check the drain for leaks and make sure that it is opening
properly.
2. Check all water and hose connections for leaks. Replace the
hoses and clamps as needed.
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Monthly
NOTE: Disconnect power to the machine at its source before performing the monthy maintenance
procedures.
1. Clean any lint from the motor.
2. Clean the water inlet valve and hose filters. Replace the filters if
they are worn or damaged.
3. Remove any moisture or dust from the electrical components.
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4. Check the basketball to see if it needs lubrication. If the basket
does not rock easily and does not return to a level position when
pushed down on one side, apply lubrication to the top of the
basketball.
5. Check the extract motor vibration pads for wear and replace them
as needed.
Monthly
6. Tighten the transmission and extract motor mounting nuts as
needed.
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Care of Stainless Steel
✓ Remove dirt and grease with detergent and water.
Thoroughly rinse and dry after washing.
✓ Avoid contact with dissimilar metals to prevent
galvanic corrosion when salty or acidic solutions are
present.
✓ Do not allow salty or acidic solutions to evaporate
and dry on stainless steel. Wipe clean of any
residues.
✓ Rub in the direction of the polish lines or “grain” of
the stainless steel to avoid scratch marks when using
abrasive cleaners. Use stainless steel wool or soft,
non-metal bristle brushes. Do not use ordinary steel
wool or steel brushes.
✓ If the stainless steel appears to be rusting, the source
of the rust may be an iron or steel part not made of
stainless steel, such as a nail or screw. Tip: Paint all
carbon steel parts with a heavy protective coating.
Stainless steel fasteners should be used whenever
possible.
✓ Remove discoloration or heat tint from overheating
by scouring with a powder or by employing special
chemical solutions.
✓ Do not leave sterilizing solutions on stainless steel
equipment for prolonged periods of time.
✓ When an external chemical supply is used, ensure
no siphoning of chemicals occurs when the washerextractor is not in use. Highly concentrated
chemicals can cause severe damage to stainless steel
and other components within the machine. Damage
of this kind is not covered by the manufacturer’s
warranty. Locate the pump and tubing below the
washer-extractor’s injection point to prevent
siphoning of chemicals into the machine.
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Daily Preventative Maintenance Checklist
Machine: Week of:
Operator: Days
Checks 1 2 3 4 5 6 7
Observe All Safety Warnings!
1. Clean the main body, front and side panels with a mild
detergent and rinse them with clean water.
2. Clean the lid of all foreign matter.
3. Leave the lid open at the end of the day to allow moisture to
evaporate.
Laminate this checklist so that it can be re-used.
Weekly Preventative Maintenance Checklist
Machine: Week of:
Operator: Week Ending:
Checks / / / / / / /
Observe All Safety Warnings!
1. Check the drain for leaks and make sure that it is opening
properly.
2. Check all water and hose connections for leaks. Replace the
hoses and clamps as needed.
Laminate this checklist so that it can be re-used.
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Monthly Preventative Maintenance Checklist
Machine: Month:
Operator:
Checks
Observe All Safety Warnings!
1. Clean any lint from the motor.
2. Clean the water inlet valve and hose filters. Replace the
filters if they are worn or damaged.
3. Remove any moisture or dust from the electrical
components.
4. Check the basketball to see if it needs lubrication. If the
basket does not rock easily and does not return to a level
position when pushed down on one side, apply lubrication
to the top of the basketball.
5. Check the extract motor vibration pads for wear and
replace them as needed.
6. Tighten the transmission and extract motor mounting nuts
as needed.
Laminate this checklist so that it can be re-used.
8 10-04-103
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