CLEAN ROOM DEVICES CRD216SS User manual

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CRD216SS
TIME DELAY HEATED TUBING
EXPANDER
OPERATIONS MANUAL
VERSION 2.8
LAST EDITED 05.11.2022
cleanroomdevices.com

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Table of Contents
Table of Contents…………………….…………………………………………………………...2
1.0 General Product & Safety Information…………………………………………….…..…3
1.1 Product Information
1.2 Safety Information
2.0 Installation………………………………………………….………………..….…….…..5
2.1 Air Supply
2.2 A/C Power
2.3 Connection Setup
3.0 Operation…………………………………………………………………..……...…...….5
3.1 Jaw Adjustment
3.2 Setting Time Delays
3.3 Expanding Operations
3.4 Jaw Installation and Removal
4.0 Maintenance…………………………………………………………………….…….…17
4.1 Verifying temperature
4.2 Periodic Cleaning (annually)
4.3 Heater Calibration (TEMPCO Controls)
5.0 Troubleshooting………………………………………………………………….……....19
6.0 Product Specifications………………………………………………………..………..…19
7.0 Durometer Scale…………………………………………………………………..……...19
8.0 Electrical Diagram…………………...…………………………………………..…….....20
9.0 Parts List…………………………………..…………………………….………....….….21
10.0 Warranty…………………………………………………………………………...…… 22
10.1 Warranty..
10.2 Warranty Period

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1.0 General Product & Safety Information
1.1 Product Information
•The CRD216SS is designed to expand stiffer tubing such as nylon, polyethylene,
polypropylene and Teflon tubing. With the heater off, the unit can also expand flexible
tubing up to a durometer of Shore A 85 (Shore D 35), including any non-metallic braided
materials.
•The minimum/maximum inside tube diameter is .040” –1/2”.
•The unit operates up to a temperature of 350 °F.
•The standard jaw sets are universal and are designed to be used with an inside diameter
range of .040” to 1/2". Other jaw sets are available that are optimized for a specific size
(see accessories page at www.cleanroomdevices.com or call Clean Room Devices, Inc.).
•The device features simple yet reliable jaw adjustment, which can be made by the
operator.
•The device features independently adjustable expansion and interval period adjustments
from 0.5-5 seconds, allowing for repeatability of operation.
•The serial number for the device is located on the back of the cover, between the
electronics enclosure and the power entry module. Figure 1.1.1
Figure 1.1.1
1.2 Safety Information
•This product uses an air cylinder and foot pedal to pneumatically actuate and expand the
jaws. The unit is not intended to expand anything other than flexible tubing.
Electronics Enclosure
Power Entry Module

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Avoid placing your fingers between the upper jaw block and the air cylinder mounting bracket while
operating unit, sufficient pressure exists to cause personal injury.
Arrows indicate pinch points
•During heating and once the unit reaches operating temperature, the jaws and metallic
areas around the jaws will be extremely hot. It is recommended to set the jaw gap before
beginning the heating cycle. Allow the unit to cool to a safe and or comfortable handling
temperature before removing and reinstalling the jaw set.
Avoid direct contact with the jaw set while the heater is on. Surface will be hot enough to cause severe
burns.
WARNING
WARNING

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2.0 Installation
Ensure all five (5) rubber feet are completely stabilized on your work surface prior to applying
air pressure to the unit.
2.1 Air Supply
•Connect a 1/4” OD air supply hose to the inlet on the pressure regulator. The air supply
should be free of moisture and contaminates and provide a minimum of 100 psi.
•The regulator on the unit should be set to 80-120 psi.
2.2 A/C and DC Power
•This product uses standard 60Hz alternating current power provided by your local utility.
Ensure that you use the correct power supply (120VAC/24VDC) for the type of power in
your region. The heaters and digital controllers are powered by the 120VAC power
source, and the time-delay circuitry is powered by the 24VDC power source. Both must
be present to operate.
2.3 Connection Setup
•Connections on the CRD216SS are simple. Refer to Figure 2.3.1 below when making all
connections to the back panel.

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Figure 2.3.1
3.0 Operation
3.1 Jaw Adjustment
Jaw Hold-Open
Toggle Switch
Toggle Switch
Power Jack
Foot Pedal Jack
Heater Controller Power Switch
120/240 VAC IN
Air IN
Jaw Set
Thumb Wheel
Lock Nut

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Figure 3.1.1 Jaw Adjustment
CAUTION: THE UNIT CAN BECOME EXTREMELY HOT. CARE MUST BE USED AT ALL
TIMES WHEN EXPANDING AND DURING JAW INSTALLATION AND REMOVAL.
•Start by using a 9/16” wrench to loosen the 3/8” hex nut at the bottom end of the lower
jaw support block assembly to adjust the unit for the proper tubing size.
•With A/C power and compressed air attached to the expander, actuate the electric foot
switch which will activate the expander. Adjust the expander lower jaw to the position
you want using the Thumb Wheel Knob. Note that the jaws may be set to remain in the
“open” position using the toggle switch noted in Figure 2.3.1, and triggering the foot
pedal. Make sure the toggle switch is returned to the “off” position, or the jaws will
remain open.
•Locate the lower expander jaw position for your tubing size using the larger thumb-
wheel.
(This adjustment may require fine tuning depending on your tubing I.D., O.D.,
Durometer or material. It is recommended you note or log the jaw gap settings for future
applications, or usage.)
3.1.A Using the Jaw Hold-Open Feature
•A Jaw Hold-Open switch has been installed on the tubing expander. This makes setting
the gap between the jaws much simpler.
1) With the toggle switch in the “ON” position, flip the jaw hold-open switch to the
“ON” position (UP).
Figure 3.1.A.1 Figure 3.1.A.2
2) Use the foot pedal to trigger the cycle. The upper jaw will retract and remain open.

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Figure 3.1.A.3
3) Flip the jaw hold-open switch to “OFF” position (DOWN) and the upper jaw will
return to the non-expanded position.
Figure 3.1.A.4 Figure3.1.A.5
3.2 Setting the Time Delays
•The CRD216SS expansion operation is designed to let the operator expand each piece of
tubing twice. After the first expansion, the jaws will close and the operator rotates the
tube 90 degrees and the jaws will automatically expand again using the sensor. This
ensures that the tubing is expanded in a uniform fashion, and not deformed in only one
direction. To assist with this 2-step expansion operation, there are two time delay relays
on the unit.
•Expansion Time –This setting adjusts the rate (0.5-5.0 seconds) at which the
tube expansion occurs. The rate at which the tube is expanded is critical to
prevent tearing. Some stiffer tubing might need a longer expansion time, while
softer tubing can be expanded rapidly.
•Interval Time –This setting adjusts the time delay rate (0.5-5.0 seconds) at
which the jaws will cycle. It is adjusted to allow the operator to rotate the tubing
90 degrees at a comfortable pace between expanding.
•Remove the hole plugs with a screwdriver on the rear cover to gain access to the Time
Delay adjustment pots. Figure 3.2.1

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Figure 3.2.1 Removing Access Hole Plugs
•Using a small Phillips drive screwdriver adjust the Time Delay relays. Figure 3.2.2
Figure 3.2.2 Adjusting the Expansion Time Pot
•Figure 3.2.3 below shows the CRD216SS with the electronics cover removed, as well as
the location of both time delay adjustments on the time delay relay:
Top of unit

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Figure 3.2.3
3.3 Expanding Operation
CAUTION: THE UNIT CAN BECOME EXTREMELY HOT. CARE MUST BE USED AT ALL
TIMES WHEN EXPENDING AND DURING JAW INSTALLATION AND REMOVAL.
•To adjust the jaws for the size tubing to be expanded you need to loosen the 3/8” hex nut
(Lock Nut.)
•With A/C power and compressed air attached to the expander, actuate the electric foot
switch which will activate the expander. Adjust the expander lower jaw to the position
you want using the Thumb Wheel Knob. Note that the jaws may be set to remain in the
“open” position using the toggle switch noted in Figure 3.3.1, and triggering the foot
pedal. Make sure the toggle switch is returned to the “off” position, or the jaws will
remain open.
•Turning the Thumb Wheel clockwise will increase the jaw expansion size, counter
clockwise will decrease the jaw expansion size. This adjustment may require fine tuning
depending on your tubing I.D., O.D., durometer and/or material.
•Once you have the expansion size you want tighten the Lock Nut to secure the
adjustment.
•Place the tube over the ends of both expander jaws and hold firmly in place.
•Actuate the Tube Expander by pressing the electric foot switch.
•Rotate the tubing 90 degrees on the jaws and actuate the Tube Expander by pressing the
electric foot switch again. Failure to do so may result in uneven expansion and/or
damaged tubing!
Interval Time
Adjustment
Expansion Time
Adjustment

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Note: Several expanding actions may be necessary to effectively expand the end of
the tube for the fitting/connector to slide in. Each time you expand the tubing
remember to rotate the tubing 90 degrees on the jaws.
3.4 Jaw Installation and Removal
CAUTION: THE UNIT CAN BECOME EXTREMELY HOT. CARE MUST BE USED AT ALL
TIMES WHEN EXPENDING AND DURING JAW INSTALLATION AND REMOVAL.
•Tools required are 3/8”, 9/16”and 11/16”open ended wrenches, 2mm, 2.5mm, 3mm,
4mm and 3/32nds hex wrenches.
Jaw Set
Lock Nut
Safety Guard
Thumb Wheel

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•Remove the two 4x8mm screws attaching the Thermocouples to the upper and lower jaw
using a 2.5mm hex wrench. Figure 3.4.1 and 3.4.2 Note: Be sure to label each
thermocouple and/or heater cartridge as to its position, upper or lower, and be sure to
replace them in the correct positions. The unit will not operate correctly otherwise.
Figure 3.4.1 Figure 3.4.2
•Turn the thumb wheel clockwise until the cylinder shaft is fully extended in the jaw block
channel to remove force from cylinder shaft. Figure 3.4.3
Cylinder shaft shown fully extended in jaw block channel
Figure 3.4.3
•Using a 3/8” open end wrench to hold the flats on the cylinder shaft and an 11/16”open
end wrench on the hex nut, break the upper jaw nut loose by turning it counter clockwise.
Figure 3.4.4
•Using a 9/16 open end wrench break the lower jaw nut loose by turning it clockwise.
Figure 3.4.5

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Figure 3.4.4 Figure 3.4.5
•Now remove the two 5x20mm screws holding the front cylinder mount bracket using a
4mm hex wrench. Figure 3.4.6.
Remove two 5x20mm screws
Figure 3.4.6
•Place two fingers under the cylinder shaft and lift until the upper jaw clears the lower
jaw. Figure 3.4.7 and 3.4.8

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Figure 3.4.7 Figure 3.4.8
•Use a 2mm hex wrench to loosen the set screws in each jaw and then remove the heating
element probes. Figure 3.4.9 and 3.4.10 Note: The set screws may be located on either
the inner or outer faces of the jaws.
Figure 3.4.9 Figure 3.4.10
•Flip the cylinder backwards until it stops. Figure 3.4.11

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Figure 3.4.11
•Rotate the upper jaw by hand turning it counter clockwise until the jaw can be removed.
•Important note: when screwing upper jaw onto cylinder shaft it is important to only
screw the jaw 2/3 to 3/4 of the way on. Any farther and the jaw may slip off the jaw
block when the cylinder is retracted.
Figure 3.4.12 Jaw threaded 2/3-3/4 onto shaft Figure 3.4.13 Jaw threaded on too far
And has slipped off jaw block.
•Remove the locking hex nut and turn threaded rod by hand and rotate threaded rod
counter clockwise while holding the lower expander jaw until the jaw is removed. Figure
3.4.14

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Rotate rod while holding lower jaw
Figure 3.4.14
•Select replacement jaw set and assemble them in the reverse order of previous operations.
Be sure to replace the thermocouples and heater cartridges in the correct positions. The
unit will not operate correctly otherwise.
•Note: If the UP/DOWN alignment of the jaws are incorrect the cylinder shaft won’t
retract when trying to be cycled. The adjustment of both set screws on the front
cylinder mount bracket will need to be adjusted. To make the adjustment you must
first loosen the two 5x20mm screws using a 4mm hex wrench (Figure 3.2.13) and
then by adjusting the two set screws using a 3/32nd hex wrench. Figure 3.2.14. Now
tighten the two 5x20mm screws and assure jaw alignment.
5x20mm screws Set Screw (One per side)
Figure 3.4.15 Figure 3.4.16

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4.0 Maintenance
4.1 Verifying Temperature
•To verify the operational temperature, place a ring terminal measuring probe between the
thermocouple and the upper jaw, as shown below:
Spade-head probe and connector
Probe placed between thermocouple & jaw
4.2 Periodic Cleaning (annually)
•Wipe down outer surfaces with alcohol, septihol or mild detergents as required.
•Ensure the control box does not have a significant amount of dust or debris buildup
within it.
4.3 Heater calibration for TEMPCO TEC-220 Temperature Controller
•Adjusting the temperature on the TEMPCO controls is a simple task.
•Press the “Function” key so the display shows “SP1” then press the down arrow to
display the current set temperature. Next, use the up and down arrows to set the desired
temperature. Once the desired temperature is displayed, press the “Function” key again to
save. Figure 4.3.1

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Function Key Raise Temperature Lower Temperature
Figure 4.3.1
4.4 TEMPCO Temperature Controller
•To set the controller to “Auto Tune” Mode:
1. Press the “Function”key four times. The unit should display “A--t”.
2. Press and hold the “Function”key until the display flashes.
3. If the “Function” key is pressed again, the unit will return to the normal temperature/set
display screen –it will no longer be in Auto Tune Mode.
4. The unit will Auto Tune the controllers. The heat level will go up and down, until the
until the unit calibrates and stabilizes. The procedure will take about 10-15 minutes.

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5.0 Troubleshooting
Operating Error
Action
Unit does not operate.
1. Check the facility air connection.
2. Check all air hose connections on the unit.
Flexible tubing is splitting/tearing.
1. Ensure the tubing being expanded does not
exceed the recommended durometer.
2. Ensure the lower jaw has been adjusted
correctly for the tubing inside diameter (I.D.).
3. Verify facility air supply psi or unit pressure
adjustment.
Heaters are not operational or are operating at too
low/high a temperature
1. Check the connectivity of the thermocouples
and heating elements.
2. Verify that the control unit has power.
3. Calibrate the heater controllers (see previous
pages)
6.0 Product Specifications
Unit Weight
21 LBS / 9.5 KG
Overall Dimensions
14.5 in. lg. x 12 in. w. x 9 in. ht.
Minimum Facility Air Supply
100 PSI
Unit Air Regulator Setting
80-120 PSI
7.0 Durometer Scale

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8.0 Electrical Diagrams
Note: Schematic drawings are provided for troubleshooting only—
not for modifying the machine in any way!