Milnor MilTouch MWB26Z Manual

PELLERIN MILNOR CORPORATION Post Office Box 400, Kenner, Louisiana 70063–0400, U.S.A.
Operator Guide
Side-loaded, Barrier
MilTouch™ Washer-
extractor
Manual Number: MKCLKO01
Edition (ECN): 2021172

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Contents
1 Preface ...........................................................................................................................................3
1.1 About This Operator Guide and This MilTouch™ Washer-extractor ...............................3
2 Controls .........................................................................................................................................4
2.1 Physical Controls ...............................................................................................................4
• Main Controls ...............................................................................................................5
• Clean-Side Controls .....................................................................................................6
2.2 Emergency Stop Switch (locking push button) .................................................................6
2.3 How to Use the MilTouch™ Controller ............................................................................7
2.3.1 The Home Display...................................................................................................7
2.3.2 About the Start Button.............................................................................................8
3 Normal Operation..........................................................................................................................9
3.1 Safety and Best Practice When Loading and Unloading ...................................................9
3.1.1 Loading and Unloading Safety................................................................................9
3.1.2 Load Size Best Practice ...........................................................................................9
3.1.2.1 Weighing Goods .........................................................................................10
3.2 Apply control power. .......................................................................................................10
3.3 About Outer and Inner Doors ..........................................................................................11
3.4 Open the outer door on the soil side. ...............................................................................11
3.5 Open the inner door. ........................................................................................................11
3.6 Load the machine. ...........................................................................................................13
3.6.1 To Load the Machine (Optional Weighing System)..............................................13
3.6.2 To Load the Machine (Separate Laundry Scale) ...................................................14
3.7 Close the inner door. ........................................................................................................15
3.8 Close the outer door. ........................................................................................................15
3.9 Align and load the second pocket, or the second and third pockets. ...............................15
3.9.1 To Load the Pocket(s) with a Weighing System ...................................................16
3.9.2 To Load the Pocket(s) with a Separate Laundry Scale .........................................17
3.10 Start the wash formula. ..................................................................................................18
3.10.1 To Run a Wash Formula Locally.........................................................................18
3.10.1.1 About the Liquor Ratio Control Feature ..................................................18
3.10.1.2 To Start a Local Wash Formula with Liquor Ratio Control .....................19
3.10.1.3 To Start a Local Wash Formula with the Optional Weighing
System ....................................................................................................20
3.11 Monitor the wash formula. ............................................................................................20
3.11.1 The Run Display..................................................................................................20
3.11.1.1 The Names and Timers Area (A)..............................................................21
3.11.1.2 The Machine Status Area (B) ...................................................................21
3.11.1.2.1 How to Monitor Automatic Liquid-Chemical Injections ..............22
3.11.1.3 Manual Control and Diagnostics Area (C) ...............................................22
3.11.2 Respond to the end of the cycle...........................................................................22
3.12 Unload the machine. ......................................................................................................22
4 Troubleshooting...........................................................................................................................24
4.1 Operator Intervention ......................................................................................................24
4.1.1 Chemical Supplies Intervention ............................................................................24
4.1.2 Error Intervention ..................................................................................................25
4.1.3 Formula Intervention .............................................................................................25

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• Modify Step Timer ..............................................................................................26
• Modify Water Valves...........................................................................................27
• Modify Drain Valves...........................................................................................27
• Modify Steam and Cooldown .............................................................................28
• Modify Cylinder Speed.......................................................................................28
• Modify Water Temperature .................................................................................28
• Modify Water Level ............................................................................................29
4.1.4 To Cancel a Formula .............................................................................................29
4.2 Errors ...............................................................................................................................30
4.2.1 MilTouch™ Error Messages for Barrier Washer-extractors .................................30
4.2.2 Error Correction.....................................................................................................34
4.3 How to Contact Milnor®..................................................................................................36
Figures
Figure 1 Clean-Side Control Panel............................................................................................4
Figure 2 Flush Button................................................................................................................5
Figure 3 Heating Switch............................................................................................................5
Figure 4 Emergency Stop Switch..............................................................................................6
Figure 5 The Home Display ......................................................................................................8
Figure 6 Inner (Cylinder) Door Lock Mechanism ..................................................................11
Figure 7 Weighing System Display.........................................................................................13
Figure 8 Confirmation Dialogue Box......................................................................................17
Figure 9 Load Weight Window ...............................................................................................19
Figure 10 The Three Information Areas of the Run Display ....................................................20
Figure 11 The Names and the Timers Area ..............................................................................21
Figure 12 The Machine Status Area..........................................................................................21
Figure 13 Chemicals from Valves 1 and 2 Injecting .................................................................22
Figure 14 Standard Controls .....................................................................................................22
Figure 15 Chemical Injection Dialog Box ................................................................................25
Figure 16 Formula Control Areas .............................................................................................26
Figure 17 Pop-up Controls for Step Timer................................................................................26
Figure 18 Pop-up Controls for Water Valves ............................................................................27
Figure 19 Pop-up Controls for Drain Valves.............................................................................27
Figure 20 Pop-up Controls for Steam and Cooldown Valves ...................................................28
Figure 21 Pop-up Controls for Cylinder Speed.........................................................................28
Figure 22 Pop-up Controls for Water Temperature...................................................................28
Figure 23 Pop-up Controls for Water Level..............................................................................29
Figure 24 Resume or Cancel the Formula.................................................................................29
Figure 25 Sample Error Code Dialog Box ................................................................................30
Figure 26 Transducer Tube .......................................................................................................33
Figure 27 Schematic of Typical Drain Circuit ..........................................................................33
Figure 28 Error Causes/Solutions Display ................................................................................35
Tables
Table 1 Pellerin Milnor®Corporation Contact Information .................................................36
Contents

1 Preface
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1.1 About This Operator Guide and This MilTouch™
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This operator guide applies to the following machine model(s):
• MWB26Z
• MWB45Z
• MWB70Z
• MWB90Z
This operator guide explains routine operation. It is for the operator and for supervisory personnel
responsible for operator training. The machine must be fully commissioned and ready before you
attempt to operate it. A separate controller reference manual is available from Milnor for use by
technicians involved in the commissioning, programming, and servicing of the machine.
WARNING: Careless use — can cause death or serious injury and property damage.
�Read the machine manuals before you install, operate, service, or clean
the machine.
�Do not attempt to service the machine or reach into normally-guarded
areas unless you are a qualified service technician.
This MilTouch™ industrial washer-extractor has one or more physical switches and buttons
(electromechanical controls), as well as a touch-sensitive display screen with virtual controls.
Use the electromechanical controls to apply power, unlock the door, stop the machine immedi-
ately (if necessary), and load and unload the machine. Use the touch-actuated controls on the Mil-
Touch™ display screen to select, run, and monitor formulas.
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2 Controls
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2.1 Physical Controls
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On side-loaded, barrier washer-extractors, the virtual controls on the MilTouch™ touchscreen
control all machine functions needed on the soil side of the machine (see Section 2.3 : How to
Use the MilTouch™ Controller, page 7). The buttons on the control panel shown in Figure 1 con-
trol all machine functions needed on the clean side of the machine.
Figure 1. Clean-Side Control Panel
Legend
A...Emergency stop switch
B...Clean-side buzzer (H2)
C...Clean-side light (H3)
D...Reposition button (S4)
E...Control on soil side button (S5)

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Main Controls
Master power switch ( ) — This switch energizes and removes power from the con-
trol system.
Remove power from the control system.
Energize the control system.
Touchscreen for the MilTouch™ controller — This is a touch-sensitive display screen that
you use for most machine functions.
Flush Button (Optional)
Figure 2. Flush Button
This optional button rinses the detergent box with cold water, to
manually flush dry chemicals into the machine. This button can
also be used to fill the machine with cold water, to increase the
water level in the machine.
Heating Switch (Optional)
Figure 3. Heating Switch
This button selects the type of heating on machines with option-
al combined heating (steam and electric heaters).
Ethe machine uses the electric heater
Sthe machine uses the steam heater
Controls

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Clean-Side Controls
Clean-side buzzer (H2) — This buzzer (item B in Figure 1 ) sounds at the end of a formula
while the cylinder turns to the clean-side position (the discharge position).
Clean-side light (H3) — This light (item C in Figure 1 ) illuminates to indicate the clean-
side door is unlocked and the machine is ready to be unloaded.
Reposition button (S4) — This button (item D in Figure 1 ) rotates the drum (cylinder)
to the clean-side position, or rotates the drum to the next pocket on the clean side if the drum is
already on the clean side. This button can be used to align the inner and outer doors if they are
misaligned.
Control on soil side button (S5) — This button (item E in Figure 1 ) rotates the drum
(cylinder) to the soil-side position.
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2.2 Emergency Stop Switch (locking push button)
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One or more emergency stop switches (pictured below) may be provided on the device. When
pressed, any emergency stop switch removes power from the machine controls, stops the ma-
chine, and locks in the depressed (switch actuated, machine stopped) position. When safe to do
so, turn the button clockwise to unlock the switch. To resume operation, perform the device’s nor-
mal startup procedure.
Figure 4. Emergency Stop Switch
Stopped Position Run Position
NOTICE: Press the emergency stop switch immediately in an emergency situation.
Display or Action Explanation
This symbol represents the emergency stop switch in Milnor®
documents other than electrical wiring diagrams.
Controls

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2.3 How to Use the MilTouch™ Controller
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The Milnor®MilTouch™ washer-extractor controller uses a touch-sensitive display screen to op-
erate the machine. All the functions and information you need to process goods appear on this
screen.
CAUTION: Excessive pressure — can damage the display screen.
�Do not push hard on the glass.
�Use only a finger to touch the glass. Do not touch the screen with a
tool.
Turn the master switch on ( ) to apply power to the control system. The Home display appears
on the touchscreen.
2.3.1 The Home Display
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The display pictured in the following figure, subsequently referred to as the Home display, is
used to access all the other displays. Buttons labelled with an asterisk (*) are not used during rou-
tine operation. For additional information on those buttons and the displays they access, see the
separate controller reference manual.
From the Home display, and with a load of goods in the machine, you can select and run wash
formulas.
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Figure 5. The Home Display
Legend
A. Use the AutoSpot™ feature to
transfer control to the clean
side, or rotate the cylinder
(drum)
Fn. The wash formula names
M. Run a formula from the Milda-
ta®computer (currently
unavailable)
P. Turn machine power OFF
S. Run a formula
Sc. Scroll between pages
Se. Search for a formula
*C. Access the Configuration
display
*D. Access the Diagnostics
displays
*Dc. Display the dealer contact
information
*Dt. Access the Data Transfer
display
*F#. The wash formula numbers
*L. Access the Data Log displays
*V. The version data
*Vd. View the version details for
your controller software
*W. Access the Wash Formula
Maintenance display
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On machines without any optional features, the selected formula immediately starts when you
press the start button ( ) on the Home display.
If your machine has optional features— such as a barcode scanner, load cells, or liquor ratio con-
trol, the displays that allow you to use these features (ex. the Barcode display, the Weighing Sys-
tem display, Load Weight window, etc.) appear when you touch . This manual refers to
these displays as “feature displays.” The formula starts when you finish using all the feature dis-
plays and touch . If your machine has multiple features, you may have to progress through
several feature displays (and press several times) before the selected formula starts.
NOTE: The availability of the aforementioned features varies by machine model.
Controls

3 Normal Operation
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3.1 Safety and Best Practice When Loading and
Unloading
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If you are responsible to load and unload the machine:
• Put safety first.
• Use correct load sizes.
3.1.1 Loading and Unloading Safety
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Loading and unloading activities have associated risks that are addressed by safety placards on
the machine. Before you use your Milnor®washer-extractor for the first time, read the safety
placards. If there is anything you do not understand, get clarification from your supervisor or
laundry management.
There can also be other risks associated with the type of laundry facility and the allied (non-Mil-
nor®) equipment you use, such as laundry carts, sling systems, chemicals and chemical systems.
Milnor®advises you to obtain and read the safety literature provided for your facility and for all
equipment you use.
Examples of possible risks related to the type of laundry facility or to allied equipment are:
• goods handling:
– sharp objects such as scalpels and syringes left in OR gowns
– biological contamination in patient gowns and diapers
– just processed goods that are hot to the touch
– poisonous or flammable chemicals in the soiled goods
• laundry carts of the wrong size that cause unnecessary effort in loading or unloading
• laundering chemicals:
– leaks in supply lines
– skin or eye irritation from contact with spilled chemicals or chemical containers
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For your machine, there is a correct load size for each type of goods you process.
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load size the dry weight (in pounds or kilograms) of a load of goods. Specific goods types can
require specific load sizes and these can vary significantly.
capacity the load size rating for a washer-extractor, as stated in the specifications shown on the
product brochure. This rating does not reflect factors such as goods type and soil content.
You will get the best performance from your machine if you use the correct load sizes. Under-
loading can make it difficult for the machine to distribute (balance) the goods before extraction.
This can cause excessive recycles (when the machine repeatedly tries to distribute the goods). Oc-
casional small loads may be necessary, but keep these to a minimum. Over-loading can put in-
creased stress on machine components and reduce wash quality.
CAUTION: Incorrect load sizes — can cause premature machine wear, excessive re-
cycles (which extends formula time), and poor wash quality.
�Use a chart of goods types and load sizes from your supervisor or laun-
dry management.
�Minimize the number of small loads.
�Use a scale to determine when a load is the correct size.
�On a divided-cylinder machine, put approximately the same weight of goods in each
pocket.
When your machine was purchased, your Milnor®dealer worked with your laundry personnel to
determine the optimum machine for your needs. This took into account factors such as the types
of goods to be washed and the expected soil content of the goods, which can cause the correct
load size to vary greatly among goods types. For example, the more bulky the goods, the smaller
the permissible load size. The correct load sizes will be what was previously determined when
the machine was purchased. If you do not already have a chart of the goods types to be processed
and their correct load sizes, request one from your supervisor or laundry management.
3.1.2.1 Weighing Goods
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Build loads of the correct size for the best performance from your machine. The most accurate
method to build loads of the correct size is to weigh each load as you assemble it.
If your machine is equipped with a flow meter, enter the weight of the load when you start the for-
mula to use Liquor Ratio Control.
Alternatively, machines equipped with the optional weighing system (load cells) can weigh the
goods automatically as you load them into the cylinder.
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3.2 Apply control power.
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Set the master power switch ( ) to . Control power must be on to use the electrome-
chanical controls and the touchscreen controller.
Normal Operation

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3.3 About Outer and Inner Doors
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All side-loaded, barrier washer-extractors have one outer door (on the machine shell) and one to
three inner doors (on the cylinder, one for each pocket) on each side of the barrier. The inner and
outer doors must be aligned before it is safe to reach into the cylinder.
3.4 Open the outer door on the soil side.
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Side-loaded, barrier washer-extractors do not have buttons to unlock the door. The controller
locks both of the outer doors during normal operation and automatically unlocks them when the
machine is ready to receive a load and when the machine is ready to discharge.
When the outer door is unlocked, hold the handle at the bottom of the door and lift it to open the
door.
3.5 Open the inner door.
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If you open the outer door and the inner and outer doors are not aligned, close the outer door and
use theAutoSpot™ feature ( ) to rotate the cylinder until the doors are aligned.
1. Hold the lever (item C in Figure 6 ) and press the lock panel (item B in Figure 6 ) with your
thumb, as shown in the following figure.
Figure 6. Inner (Cylinder) Door Lock Mechanism
Legend
A...Door handle
B...Lock panel
C...Lever
D...Safety switch
Normal Operation

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2. Pull the lever towards you.
3. With the lever still towards you, press the
safety switch (item D in Figure 6 ). This ac-
tion releases the door lock.
4. Pull the lever to its fullest position.
5. Open the inner door.
Normal Operation

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The loading instructions for your machine depend on the method you use to weigh goods. There
are two methods:
• with the optional weighing system (load cells)
• with a separate laundry scale
3.6.1 To Load the Machine (Optional Weighing System)
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Use the following instructions to load your machine if it is equipped with the optional weighing
system. If your machine is not equipped with a weighing system, see Section 3.6.2
1. On the Home display, select a formula. If you are using a flow meter, select the formula that
your chemical supplier or laundry specialist set to use Liquor Ratio Control (see Section
3.10.1.1 : About the Liquor Ratio Control Feature, page 18).
2. Touch . The Weighing System display appears, shown in the following figure.
Figure 7. Weighing System Display
Legend
A... Cancel the formula and re-
turn to the Home display
B...Select a pocket to load
C...The total weight of goods in
the machine
D...The maximum machine
capacity
E... The weight of goods in each
pocket
F... The maximum capacity for
each pocket (max capacity/#
of pockets)
G...Start the formula
H...Rotate the cylinder with the
AutoSpot™ feature to access
the next pocket on divided-
cylinder machines
I...Tares the scale back to zero
for the selected compartment
(pocket). The total weight
and locked-in weights (in
red) do not tare.
J...Enter the weight manually
for this load.
K...The customer (commercial
laundry) or department (insti-
tutional laundry) the batch
(goods) belongs to
Normal Operation

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3. On the Weighing System display, touch the button labeled “Compartment 1” to activate the
load cell (scale) in the cylinder, or the load cell in the first pocket if you have a divided-cylin-
der machine (the machine in Figure 7 has 2 pockets).
The scale tares to zero and the weight value turns green, as shown below.
CAUTION: People or objects leaning on the machine — can cause inaccurate weight
readings.
�Do not lean on the machine.
�Do not rest heavy objects against the machine.
�Do not push objects such as laundry carts against the machine.
4. Load the cylinder, or the first pocket, according to the recommended load size for your goods
type. The load cell weighs the goods as you load the machine, and the controller displays the
current weight, as indicated by item E in Figure 7 .
TIP: If you accidentally load the machine before you activate the load cell (Step 3),
remove the goods from the machine, then touch . This tares the scale back to
zero.
5. When you finish loading the cylinder or pocket, touch the button labeled “Compartment 1”
again to confirm the weight.
The weight value turns red, as shown below, and the weight can no longer be adjusted.
Continue to Section 3.7 : Close the inner door., page 15
3.6.2 To Load the Machine (Separate Laundry Scale)
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Use the following instructions to load your machine if it is not equipped with the optional weigh-
ing system. If your machine is equipped with a weighing system, see Section 3.6.1 .
1. Weigh the goods in the batch with a laundry scale.
2. If your machine is a divided-cylinder machine, divide the batch. If your machine is an open-
pocket machine (not a divided-cylinder machine), continue to Step 3.
• Divide the batch into 2 equal parts if you have a two-pocket machine.
• Divide the batch into 3 equal parts if you have a three-pocket machine.
The individual weight of each part should be as close as possible to
batch weight/# of pockets
Normal Operation

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where the batch weight is as close as possible to the recommended load size for the type of
goods.
Ex. The recommended load size is 100 kg. If the batch weight is 98 kg, and there are 3
pockets:
98/3 = 32.67
Therefore each pocket should hold approximately 32.67 kg.
3. Load the machine.
• If your machine is a divided-cylinder machine, load the first pocket.
• If your machine is an open-pocket machine, load the cylinder.
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1. Push the door to the closed position.
2. Push the lever (item C in Figure 6: Inner
(Cylinder) Door Lock Mechanism, page 11 )
to the locked position until it clicks, as
shown.
3. Pull the handle in your direction to test the
lock. If the door does not open, it is fully
closed and locked.
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To close the door, swing it closed with sufficient force to latch it.
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3.9 Align and load the second pocket, or the second
and third pockets.
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If your machine is a divided-cylinder machine, use the following instructions to load the second
pocket and (if your machine is a three-pocket machine) third pocket. The procedure is different
depending on the method you use to weigh goods.
If your machine is an open-pocket machine (not a divided-cylinder machine), go to Section 3.10 :
Start the wash formula., page 18.
Normal Operation

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3.9.1 To Load the Pocket(s) with a Weighing System
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Use the following instructions to load the remaining pocket or pockets if you have a divided-cyl-
inder machine and your machine is equipped with the optional weighing system (load cells). If
your machine is not equipped with the optional weighing system (load cells), see Section 3.9.2 .
CAUTION: Ensure the inner and outer doors are fully closed before you attempt to ro-
tate the cylinder.
1. In the Weighing System window, touch to rotate the cylinder (drum) with the Auto-
Spot™ feature to access the next pocket.
DANGER: Contact with the turning cylinder — can crush your limbs. The turn-
ing cylinder and goods are normally isolated by the locked cylinder
door.
�Always close the inner and outer doors before you rotate the
cylinder.
�Do not attempt to open the door or reach into the cylinder while it
rotates.
�Do not operate the machine with malfunctioning two-hand manual controls.
2. Open the outer door.
3. Open the inner door.
4. Touch the button labeled “Compartment 2” to activate the load cell (scale) in the second
pocket.
The scale tares to zero and the weight value turns green.
5. Load the second pocket according to the recommended load size for your goods type. The
load cell weighs the goods as you load the pocket, and the controller displays the current
weight.
TIP: Put approximately the same weight of goods in each pocket.
6. When you finish loading the second pocket, touch the button labeled “Compartment 2” again
to confirm the weight.
The weight value turns red, and the weight can no longer be adjusted.
7. Close the inner door.
8. Close the outer door.
9. If your machine is a three-pocket machine, repeat steps 1–8 to load the third pocket.
Normal Operation

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NOTICE: You must load every pocket on your machine.
Continue to Section 3.10 : Start the wash formula., page 18.
3.9.2 To Load the Pocket(s) with a Separate Laundry Scale
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Use the following instructions to load the remaining pocket(s) if you have a divided-cylinder ma-
chine and your machine is not equipped with the optional weighing system (load cells). If your
machine is equipped with the optional weighing system (load cells), see Section 3.9.1 .
CAUTION: Ensure the inner and outer doors are fully closed before you attempt to ro-
tate the cylinder.
1. Touch on the Home screen. A dialogue box appears (shown in the following figure),
which prompts you to transfer control to the clean side or the soil side.
Figure 8. Confirmation Dialogue Box
2. Touch the button labeled Soil. The basket rotates so that you can access the next pocket on
the soil side.
DANGER: Contact with the turning cylinder — can crush your limbs. The turn-
ing cylinder and goods are normally isolated by the locked cylinder
door.
�Always close the inner and outer doors before you rotate the
cylinder.
�Do not attempt to open the door or reach into the cylinder while it
rotates.
�Do not operate the machine with malfunctioning two-hand manual controls.
3. Open the outer door.
4. Open the inner door.
5. Load the second pocket.
6. Close the inner door.
7. Close the outer door.
8. If your machine is a three-pocket machine, repeat steps 1–7 to load the third pocket.
Normal Operation

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NOTICE: You must load every pocket on your machine.
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MilTouch™ machines run local formulas, or the formulas from the machine’s local memory. Use
the following instructions to run local wash formulas. If your machine is configured to use the
Liquor Ratio Control feature and/or equipped with the optional weighing system (load cells), the
procedure for running local formulas varies slightly for your machine. See Section 3.10.1.1 :
About the Liquor Ratio Control Feature, page 18 and Section 3.10.1.3 : To Start a Local Wash
Formula with the Optional Weighing System, page 20, respectively.
3.10.1 To Run a Wash Formula Locally
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1. Select the formula for your goods type, if you have not done so already.
a. Use and on the Home display to scroll between pages and locate the formula
for your goods type, or use to search for the wash formula based on its formula
number.
b. Touch the button that displays the wash formula name. The button text turns green to
show that the formula is selected.
2. Touch from the Home display, or from a feature display if you used one (such as the
Weighing System display or Barcode display), to start the formula.
The Run display appears and the door to the washer-extractor locks.
3.10.1.1 About the Liquor Ratio Control Feature
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The Liquor Ratio Control feature uses the weight of the goods in the machine to determine how
much water to use to wash the goods. To start a wash formula with Liquor Ratio Control, you
must select a formula that a specialist programmed to use Liquor Ratio Control, and enter the ac-
tual weight of the batch of goods before you start the formula.
If you used the optional weighing system to load your machine, the controller automatically
weighs the goods in the batch. If your machine is not equipped with the optional weighing sys-
tem, or if an error prevents the use of your weighing system, you must input the weight manually.
See the reference manual for more information on how to configure your machine and program
formulas to use Liquor Ratio Control.
Normal Operation