Wulftec WRTA-150 User manual

User’s
Manual
and
Reference
Guide
WRTA-150

Wulftec / M.J. Maillis Group Page 2 of 36 Version 1.1.1 /May 2013
Table of Contents
TABLE OF CONTENTS..................................................................................................................................2
LIST OF FIGURES ..............................................................................................................................................3
AUTOMATIC WARRANTY ............................................................................................................................4
SAFETY LABELS .............................................................................................................................................5
SAFETY...............................................................................................................................................................7
INSPECTION AND INSTALLATION...........................................................................................................8
INSTALLATION OF FENCE HANDLE .................................................................................................... 10
FILM LOADING AND THREADING ......................................................................................................... 11
WRAPPER CONTROLS................................................................................................................................ 13
MODE OF OPERATION – STANDARD SYSTEM ................................................................................ 19
CUT ARM OPERATION .................................................................................................................................... 20
WRAPPING THE LOAD................................................................................................................................ 20
OPTIONAL PRE STRETCH RATIOS – BELT DRIVEN ..................................................................... 21
SETTING WRAP PARAMETERS .............................................................................................................. 22
FILM CARRIAGE / ROTATION SPEED............................................................................................................ 22
UPPER/LOWER LIMIT SETTINGS................................................................................................................... 22
TOP WRAPS ..................................................................................................................................................... 22
BOTTOM WRAPS ............................................................................................................................................. 22
OVERWRAP ...................................................................................................................................................... 22
FILM TENSION (POST STRETCH)................................................................................................................... 22
PHOTOEYE SETTINGS..................................................................................................................................... 23
DS-60 PHOTOEYE ADJUSTMENT ................................................................................................................. 24
PHOTOEYE RESPONSE DELAY TIME ............................................................................................................. 26
AUTOMATIC HEIGHT SENSING ...................................................................................................................... 26
SETTING THE LIMIT STOP .............................................................................................................................. 26
ANALOG SENSOR ADJUSTMENT.................................................................................................................... 27
PROXIMITY SENSOR........................................................................................................................................ 28
REVOLUTION AND HOME POSITION SENSORS............................................................................................. 28
REED SWITCHES ADJUSTMENT .................................................................................................................... 28
PROXIMITY SENSOR REPLACEMENT ............................................................................................................. 29
MOTOR SPEED CONTROL ........................................................................................................................ 29
MAINTENANCE .............................................................................................................................................. 30
GENERAL MAINTENANCE ............................................................................................................................... 30
CARRIAGE RAILS............................................................................................................................................. 30
RING GEAR...................................................................................................................................................... 30
CHAIN MAINTENANCE .................................................................................................................................... 31
CARRIAGE LIFT CHAIN TENSION ADJUSTMENTS......................................................................................... 31
PRE-STRETCH BELTS ADJUSTMENT ............................................................................................................ 31
PRE-STRETCH CHAIN ADJUSTMENT............................................................................................................. 31
FILTER REGULATOR ....................................................................................................................................... 32
PHOTOEYES..................................................................................................................................................... 32
REDUCER ........................................................................................................................................................ 32

Wulftec / M.J. Maillis Group Page 3 of 36 Version 1.1.1 /May 2013
TROUBLESHOOTING – WRTA 150 ........................................................................................................ 34
List of Figures
FIGURE 1 INSTALLATION OF A WRTA 1 0 ........................................................................... 8
FIGURE 2 ANCHORING POINTS FOR A WRTA 1 0 ................................................................. 9
FIGURE 3 FILM LOADING AND THREADING ......................................................................... 11
FIGURE 4 RETROFLECTIVE PHOTOEYE .............................................................................. 23
FIGURE ANALOG SENSOR ADJUSTMENT .......................................................................... 27
FIGURE 6 PROXIMITY SENSOR ........................................................................................ 28
FIGURE 7 FILM IN CLAMP ............................................................................................... 30

Wulftec / M.J. Maillis Group Page 4 of 36 Version 1.1.1 /May 2013
Automatic Warranty
All parts on stretchwrappers manufactured by Wulftec International Inc. (hereinafter called
“Wulftec”) are warranted to be free of manufacturing defects for a period of four (4) years from the
date of shipment, if installed, maintained and used in accordance with factory specifications except
for the two (2) blue polyurethane coated rollers whose coating carry a lifetime warranty and the 2 ”
ring gear bearing which carries a ten (10) year warranty. Wulftec will, at its discretion, repair or
replace any defective stretchwrapping parts returned freight prepaid. All returned parts are subject
to factory inspection and Wulftec reserves the right to determine the cause of failure. Damage caused
by inadequate supply voltage, misuse, neglect or corrosive environment, is not covered by this
warranty. Damage caused during transport is the responsibility of the carrier and is not
covered under this warranty. All damages detected upon receipt of equipment should be
reported immediately to the carrier and Wulftec should be notified. This warranty only applies
if machine start up, modifications or repairs are made by an authorized Wulftec technician.
Wulftec shall under no circumstances be liable for any direct, indirect, special, incidental, consequential
damages, losses or expenses arising in connection with the use of, or inability to use, our product(s)
for any purpose whatsoever. Except as stated herein, Wulftec makes no other warranty, expressed or
implied, nor does it assume or authorize anyone else to assume for it, any other obligation relating to
our products or any other products. This warranty does not apply to machinery or equipment
deemed by Wulftec to have been subjected to misuse, neglect, or that has been started-up, repaired
or altered by unauthorized personnel. Defective parts must be returned to Wulftec within thirty (30)
days of shipment of a replacement and must be returned prepaid and in their original state. Failure
to do so will void this warranty. Defective parts that have been disassembled, damaged during
removal or otherwise tampered with will not be covered under this warranty, unless otherwise stated
in writing by Wulftec. Wulftec makes no guarantee as to the appropriateness of equipment for
particular purposes. Products serviced and/or parts replaced during the warranty period will carry
the unexpired portion of the original warranty only. The sole obligation of Wulftec under this
warranty will be to provide repairs to stretchwrapping components or replacement parts, ex-works
Wulftec.
Parts Return
Within Canada
Wulftec International Inc.
209 Wulftec Street,
Ayer’s Cliff, Québec
J0B 1C0
1-877-WULFTEC
Within the United States
Wulftec International Inc.
Fedex Trade Networks
30 Phelps St
Derby Line, VT 0 830
Disclaimer
Wulftec has taken every precaution in the preparation of this manual to ensure its accuracy.
However, this information is subject to change without notice and is provided "as is" with no
guarantee. Wulftec shall not be held liable for any direct, indirect, special, incidental or
consequential damages in connection with the use of the information contained in this manual.
Manual Copyright
No part of this manual may be reproduced, in any form, whether in whole or in part without the
written permission of Wulftec. “WULFTEC”, “RUN WITH THE PACK”, “RUN AHEAD OF THE PACK”,
“No-Thread® Powered pre-Stretch” and “Rapid-Thread™” are trademarks of Wulftec. No trademark
license is granted in connection with the material contained in this manual.

Wulftec / M.J. Maillis Group Page 5 of 36 Version 1.1.1 /May 2013
Safety Labels
In an effort to reduce the risk of injury to personnel working around the Wulftec / MJ
Maillis equipment, safety labels are placed at various points to alert them of potential
hazards. Please check equipment and note all safety labels. Make sure your personnel are
vigilant and obey these warnings. Shown below are typical labels that are attached to the
equipment.
PLACED ON ALL CONTROL PANELS.
PLACED ON ALL CONTROL PANELS.
PLACED ON AUTOMATIC MACHINE CONTROL PANELS.
PLACED ON ALL CONVEYORS.
PLACED ON ALL POWERED CONVEYORS, NEAR DRIVE.
PLACED ON ALL MOVING PLATEN, NEAR DRIVE.

Wulftec / M.J. Maillis Group Page 6 of 36 Version 1.1.1 /May 2013
Safety Labels (cont’d)
PLACED ON ALL MACHINE LEGS & TOWER
NOTE: SPANISH, FRENCH AND PORTUGESE LABELS ARE AVAILABLE UPON REQUEST.

Wulftec / M.J. Maillis Group Page 7 of 36 Version 1.1.1 /May 2013
Safety
Read Carefully Before Operating
Any Wulftec Machinery
Wulftec stretch wrap machinery should be handled with the same caution and care as with any
other industrial equipment. Many automatic functions may be potentially hazardous. For this
reason, except for the authorized operator(s) and maintenance crew, other personnel should keep
clear at all times. It is especially important to be aware that mechanical or electrical components
may suddenly become active when the electrical panel is turned on.
Unstable loads being wrapped at high speeds are liable to fly apart and cause machine damage or
personal injury. For this reason, it is suggested that whenever attempting to wrap a "new" load
configuration, all personnel should be well clear of the wrapping area. The load should not be
wrapped at a higher speed than the machine was designed to handle (rotation speed: 17 RPM).
Always assume the machine is in an active mode. Disconnect control power prior to servicing,
adjusting or performing routine maintenance procedures.
WARNING!
Unless specifically stated, preceding all instructions in this manual, it must be well
understood that all inspection, maintenance, and repair should be performed only
when the electrical power is disconnected from the machine.
Please use extreme caution if it should become necessary to inspect, diagnose, or adjust the machine
while it is in operation. Only qualified individuals thoroughly familiar with the particular machine
should perform regular maintenance or inspections.
WARNING! Disconnect machine power supply before loading film.

Wulftec / M.J. Maillis Group Page 8 of 36 Version 1.1.1 /May 2013
A
B
F
C
E
D
Inspection and Installation
Upon Arrival, visually inspect machine for damage caused in transport. If damage to the machine
has occurred, it must be reported to the freight carrier immediately and Wulftec notified. As stated
in warranty on page , Wulftec is not responsible for damage caused in transit. If no damage is
apparent, carefully remove all wrapping material, strapping, blocks, etc.
NOTE: Wulftec WRT Wrap Machines series are to be lifted for placement only by
the lifting tubes with an overhead crane, pulley blocks or forklift of at least twenty-
five hundred (2, 00) pounds lifting capacity
Lifting points identification
A. Lift here with overhead crane to remove skid.
B. Shipping bracket.
C. Bottom brackets
D. Cross member
E. Lag bolts.
F. Lift here with forklift.
Figure 1 Installation of a WRTA 150
Unpacking procedure
1. Remove lag bolts holding skid together. (10 pieces)
2. Leave cross member attached to machine. (1 piece) and lift machine from side with strap as
shown to remove skid, then set machine down on floor.
3. Insert forks as far as possible into lifting tubes. (See forklift requirement above).
4. Lift machine while moving forward until machine is in vertical position.
. Lift machine above floor and remove bottom brackets.
6. Move machine to desired location and anchor to floor.
7. Unwrap carriage and install safety bumper and photoeye bracket.
8. Remove shipping bracket.
NOTE: Because of machine configuration, in various circumstances, some of the
elements of the machine may need to be disconnected. Please follow
instructions/indications on elements and/or relevant diagrams to reconnect.
NOTE: Wulftec recommends using 10 heavy-duty expansion shields of ¾”
diameter thread size with a minimum length of 4” as a minimum anchor in
concrete. The clamp needs to be anchored with 2 anchor nuts of ½” diameter.

Wulftec / M.J. Maillis Group Page 9 of 36 Version 1.1.1 /May 2013
Inspection and installation (cont’d)
Lifting points identification
A. Remove transportation plate that is found
here.
B. Anchoring holes.
1-Mechanical anchors: KB ¾” Ø from Hilti,
4” minimum engagement into concrete.
2-Chemical anchors: threaded rod ¾” Ø, Gr:
2, Epcon system, 3 ½” minimum
engagement into concrete.
Verification of the structural capacity of the
floor to be done by others
Figure 2 Anchoring points for a WRTA 150
Note: The type of anchors for the Control Panel and Clamp (if applicable) is to the customer’s
discretion.
This machine needs to be connected to a dedicated line. A dedicated line is a line that is powered
from one breaker or fuse, and that has no other device connected to it. Furthermore, the line shall
be such that the voltage at the outlet will not drop more than % under full load. Use of extension
cords is not recommended.
To measure the voltage drop, measure the voltage at the outlet with nothing connected to it this is
VA, then measure the lowest voltage during machine operation. Please read during the complete
cycle and note the lowest value, this is VB.
Take the difference between VA and VB and divide it by VA. This will give you the voltage drop
percentage. Drop= (VA-VB)/VA. This drop should remain under % for proper machine operation,
and for compliance with the electrical code.
As an example, an outlet connected to a 1 A breaker, wired with #14AWG wire, should not be
further than 70' from the breaker, to meet the % voltage drop.
NOTE: Because of machine configuration, in various circumstances, some of the
elements of the machine may need to be disconnected. Please follow
instructions/indications on elements and/or relevant diagrams to reconnect.
A
B

Wulftec / M.J. Maillis Group Page 10 of 36 Version 1.1.1 /May 2013
Inspection and installation (cont’d)
Installation of Fence Handle
See the following drawings in order to facilitate the installation of the handle on the safety fencing.
Refer to assembly drawing 6MFEN00496.
1: Clamp key switch plate in place with edge, flush with post. Transfer holes approximately center of
slot for adjustment. Drill 9/32” hole through post. Install key switch with carriage bolts.
0MINS00006, rev. 1
Align slide bolt with key switch. Shims must pinch door panel angle iron. Tighten nuts.
1