Sealer Sales ST-1808-28, ST-1812-28 User Manual

SS-Series Shrink Tunnels
Model: ST-1808-28 / ST-1812-28

Distributed By:

Version 1.0
Last Updated: 2/21/20

Sealer Sales | www.sealersales.com | Tel: [phone] | E-mail: [e-mail]

Copyright © 2019 by Stephanie Hwang

All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying,
recording, or other electronic or mechanical methods, without the prior written permission of the publisher, except in the case of brief quotations
embodied in critical reviews and certain other noncommercial uses permitted by copyright law. For permission requests, write to the publisher,
addressed “Attention: Permissions Coordinator,” at the address below.

Sealer Sales, Inc.
8820 Baird Avenue
Northridge, Ca 91324
www.sealersales.com

Printed in the United States of America

Sealer Sales | www.sealersales.com | Tel: [phone] | E-mail: [e-mail]

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ST-1808-28 Tunnel Service Manual

IMPORTANT - PLEASE READ THIS CAREFULLY

The development of a good safety program, that is rigidly
enforced, is absolutely imperative when involved in the operation of
industrial equipment. Our machinery is well designed and includes
extremely important safety features. The part you the user play
through proper installation and maintenance procedures is of far
greater significance than our designs. Only properly trained
individuals following rigidly enforced safety rules, as recommended
by A.N.S.I. and O.S.H.A. should be allowed to operate these
machines.

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ST-1808-28 Tunnel Service Manual

TABLE OF CONTENTS

___________________________________________________________

Preface

Unpacking 4-8
Warranty Notice 9
Warranty 10-11
Warranty Exceptions 12
Warnings 13-15

Tunnel Section

Description and Specifications 16
Installation and Basic Set-Up 17-18
Front Panel Diagram 19
Sequence of Operation 20-22
Temperature Control Adjustment 23
Troubleshooting 24-33
Troubleshooting–Conveyor Malfunction 25-28
Troubleshooting–No Air Flow 28-30
Troubleshooting–No Heat 31-33
Maintenance 34-49
Maintenance—Replace Conveyor Rollers 35-37
Maintenance—Replace Idler Shaft 38
Maintenance—Replace Drive Shaft 39
Maintenance—Replace Conveyor Motor 40
Maintenance—Replace Heater Bank 41-42
Maintenance—Replace Temperature Controller 43
Maintenance—Replace Blower Motor 44-46
Maintenance—Replace Wear Rails 47-49
Electrical Panel Diagram 50
Electrical Schematic 51
Parts List Nomenclature 52
Replacement Parts List 53-55
Spare Parts List 56

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ST-1808-28 Tunnel Service Manual

UNPACKING

THOROUGHLY INSPECT EQUIPMENT UPON ARRIVAL.

If goods are received short or in a damaged condition, it is

important that you notify the carrier’s driver before he leaves your
company and insist on a notation of the loss or damage across the

face of the freight bill. Unless this is done, no claim can be enforced
against the transportation company.

If concealed loss or damage is discovered, notify the carrier at
once and insist on an inspection. This is absolutely necessary! A
concealed damage report must be made no later than five (5) days
from the date the shipment was delivered. Unless you do this, the

carrier will not consider any claim for loss or damage. The carrier’s

agent will then make an inspection and grant a concealed damage
notation. If you give the transportation company a clear receipt for
the goods that have been damaged or lost in transit, you do so at
your own risk and expense.

All claims must be filed within 5 days of delivery date or carrier
will not accept them.

Sealer Sales is willing to assist in every possible manner to
collect claims for loss or damage; however, this does not hold Sealer
Sales responsible for collection on claims or replacement of
material.

Do not throw away damaged pallets or box until
freight inspection has occurred.

UNPACKING

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ST-1808-28 Tunnel Service Manual

Your new Shrink Tunnel comes bolted to a pallet and has a
tri-walled corrugated box strapped to the pallet to protect the
tunnel.

If your machine does not arrive in this condition, write on

shipping paperwork that outside of box is damaged.
Concealed damage may have occurred.

UNPACKING

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ST-1808-28 Tunnel Service Manual

UNPACKING

1. Cut the two steel straps holding corrugated box to pallet.

2. Remove tri-wall corrugated box from pallet.

UNPACKING

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ST-1808-28 Tunnel Service Manual

UNPACKING

3. Remove plastic bag and stretch film that covers machine.

4. Unbolt tunnel from base of pallet using 13mm wrench.

5. Place forks of forklift under center of tunnel to lift off the pallet.

6. Place in desired location and use leveling bolts to match your

sealer height.

UNPACKING

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ST-1808-28 Tunnel Service Manual

UNPACKING

7. Cut plastic strap from top and bottom of conveyor rollers

before attempting to operate conveyor.

UNPACKING

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ST-1808-28 Tunnel Service Manual

IMPORTANT WARRANTY NOTICES

OPERATING AND MAINTENANCE MANUAL

The operating and maintenance manual has been
carefully prepared to provide the user with all the information needed
to properly install, operate, and maintain your equipment.

Please read this manual carefully and refer to it
for information on the care and use of your equipment. It
is recommended that additional copies be ordered for use by
production, maintenance, and supervisory personnel. Although
the design of this equipment incorporates safeguards to protect
personnel, care should be used in operating, adjusting, and
servicing.

Attention is directed to the warranty that accompanies
all your equipment. The terms and conditions of this warranty
apply only to unmodified units. Any unauthorized

modifications to the equipment automatically voids
this warranty.

WARRANTY NOTICE

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ST-1808-28 Tunnel Service Manual

Sealer Sales

WARRANTY

Sealer Sales, Inc. warrants each new product
manufactured to be free from defects in material and
workmanship for a period of (2) year from date of shipment by
Sealer Sales.

This warranty is not transferable with any subsequent resale.

Defective parts under warranty must be returned to

Sealer Sales freight prepaid. Sealer Sales’ sole obligation and
purchaser’s sole remedy in the event of a warranty dispute shall

be, at Sealer Sales’ option, to repair or replace the part in
question. Labor incurred in removing or installing the defective
part is not covered by this warranty. Prior to returning any parts
for any reason, contact Sealer Sales for a Return Authorization
Number. This number must accompany all returns.

This warranty shall not apply if equipment has been tampered
with, misused, improperly installed, altered, or has received damage
due to abuse, carelessness, accident or failure to follow
recommended regular maintenance procedures or has been serviced
by someone other than a duly authorized factory
representative without the express written consent of Sealer Sales,
Inc.

This warranty is in lieu of all other warranties, expressed
or implied, including but not limited to warranties of merchantability
and fitness for a particular purpose, non-infringement or any
other matter.

WARRANTY

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ST-1808-28 Tunnel Service Manual

Sealer Sales shall have no liability to any person for direct,
indirect, incidental or consequential damages or delay resulting
from any defect negligence, or tort and customer hereby waives for
itself any and all claims for punitive damages and all claims of
negligence of strict liability or both. In no event shall our liability
exceed the purchase price of the product which was actually paid.

Sealer Sales reserves the right to make changes,
additions, or improvements to our products with no obligation
to make such changes in any previously shipped product covered by
this warranty.

Sealer Sales shall not be held liable for any damages
arising out of nor in connection with the operation of the
equipment should customer or its agent fail to maintain
equipment in safe operating condition. This warranty shall become
unenforceable if and to the extent the customer or its agents
remove, disconnect, or otherwise render useless any safety device
and or parts designed or affixed by us or fails to maintain and
service equipment in a manner as advised.

Sealer Sales provides a one-year warranty on
parts, excluding shipping or freight costs for
replacement parts. All warranty parts are shipped
F.O.B. Rancho Cucamonga, California. Service Labor to
install part is not covered under warranty!

WARRANTY

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ST-1808-28 Tunnel Service Manual

WARRANTY EXCEPTIONS

The following parts are an exception to the general
warranty list on page 10. Each part listed below shall carry a 30-day
warranty unless designated otherwise.

ST-1808-28 Tunnel Parts

1. Silicone Tubing (roller covers)

2. Tunnel Curtains

WARRANTY EXCEPTIONS

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ST-1808-28 Tunnel Service Manual

WARNINGS

Every effort has been taken to ensure your safety while
operating this machine; however, there still remain certain risks. Do
not allow this machine to be operated before informing all personnel
of the following warnings.

WARNING........

Do not tamper with the electrical wiring. Only use a
licensed electrician for maintenance. Always disconnect the electrical
power before attempting any maintenance to all electrical and/or
moving parts.

WARNING........

In order to prevent injury to personnel and/or machinery
DO NOT INCREASE SETTINGS OR RATINGS ON EITHER ELECTRICAL
OR MECHANICAL OVERLOAD SAFETY DEVICES.

WARNING........

KEEP HANDS AWAY FROM MOVING CONVEYORS AND
ASSEMBLIES. Conveyor belts that have become worn or frayed are
capable of being hazardous. They should be replaced promptly.

WARNING........

NEVER OPERATE THIS OR ANY MOVING EQUIPMENT
WITHOUT ALL COVERS AND GUARDS IN PLACE. The internal
mechanism of most packaging machinery contains numerous shear,
pinch, and inrunning nip points, many of which are capable of
causing severe injury and/or permanent disfigurement.

WARNINGS

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ST-1808-28 Tunnel Service Manual

WARNING........

To minimize the potential for personnel injury, always be
sure that machine operators and others working on the machinery
are properly trained in the correct usage of the equipment and
properly instructed regarding the safety procedures for operation.

WARNING........

Heat sealing arms and jaws on packaging machinery can
become very warm after a period of use. KEEP HANDS AWAY WHILE
IN OPERATION AND USE CAUTION IF THE MACHINE HAS BEEN
RUNNING RECENTLY.

WARNING........

ANY MODIFICATIONS TO EITHER THE ELECTRICAL
CIRCUITRY OR THE MECHANICAL ASSEMBLIES OF THE MACHINERY
WILL VOID ANY WARRANTIES ASSOCIATED WITH THIS
EQUIPMENT. Such modifications may introduce hazards that
would not otherwise be associated with this machinery. Sealer
Sales will not be responsible for any consequences resulting
from such unauthorized modifications.

WARNING........

The use of certain types of plastic films in sealing and/or
shrinking equipment may result in the release of HAZARDOUS FUMES
due to the degradation of the film at high temperatures. Before
using any plastic film in this equipment, the manufacturer or supplier
of the film should be contacted for specific information concerning
the potential release of hazardous fumes. ADEQUATE VENTILATION
MUST BE PROVIDED AT ALL TIMES.

WARNINGS

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ST-1808-28 Tunnel Service Manual

WARNING........

It is important that the machine operator unplug the

machine when he/she has finished operating the unit.

WARNING........

Turn off machine and disconnect power cord from power

source before attempting to make any repairs or work on machine.

WARNINGS

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ST-1808-28 Tunnel Service Manual

DESCRIPTION AND SPECIFICATIONS OF

MODEL ST-1808-28 TUNNEL

DESCRIPTION

The ST-1808-28 Tunnel is a conveyorized heat
shrinking device employing electric heating combined with a
recirculating air system, and a complete range of
adjustments. The main components are the blower, the
heater bank, the shrink chamber, and the package conveyor.
Curtains cover the entrance and exit of the heat chamber to
minimize heat loss as packages travel through the tunnel. This is a
live roller tunnel. High-density kits are available on request, to
provide 1/2” spacing between rollers to accommodate small
packages and special applications. Teflon mesh belt kits are also
available.

A simple yet reliable and extremely durable shrink tunnel.

The strength and durability of this model are it’s greatest
features. Straightforward, easy manual operation is employed.

Operator training should, at the ultimate extreme, be less than one
work shift.

SPECIFICATIONS

Model: ST-1808-28

Chamber Size: Width: 18”

Height: 8”
Length: 28”

Volts: 220

Amperage: 40

Phase: Single 1/0

Weight: 450 lbs.

DESCRIPTION AND SPECIFICATIONS

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ST-1808-28 Tunnel Service Manual

INSTALLATION AND BASIC SET-UP

IMPORTANT

Read this manual carefully, and make it available to everyone
connected with the supervision, maintenance, or production of this
machine. Additional copies are available at your request. (Contact
your distributor for this information.) Be very careful when
operating, adjusting, or servicing this equipment. If in doubt, stop
and obtain qualified help before proceeding.

INSTALLATION OF SHRINK TUNNEL

Place the tunnel in the desired location with the required
electrical power source available. (See power requirements.) Make
certain that proper electrical wiring is provided to guard against low
voltage. If the voltage is too low, the equipment will not function
properly.

Finding the proper location is a most important function of the
initial set-up. One must take several factors into consideration:

1. Adequate power source.

2. Relationship to source of product.

3. Relationship to sealer.

4. Relationship to any conveyors necessary to remove
finished product.

5. Convenience of operator.

6. Avoid drafty areas as heat may be unintentionally
drawn from the tunnel and reduce its efficiency.

An electrician should install a plug on the end of the main
power cord. If there is any doubt, get qualified assistance to do the
initial installation. Do not take any chances!

INSTALLATION