Twister T-ZERO User manual

21-10096A_REV00
T-ZERO
Operator Manual
Version 1.0 February 2020

TABLE OF CONTENTS
Warranty Information .......................................................................................................................... 1
Important Safety Information .............................................................................................................. 2
General ............................................................................................................................................ 2
Combustible Dust Hazard ................................................................................................................ 2
Before operating the T-ZERO .......................................................................................................... 3
While operating the T-ZERO ........................................................................................................... 4
System Overview ............................................................................................................................... 5
Trimmer Overview .............................................................................................................................. 6
Horizontal Cyclone Overview ............................................................................................................. 8
Hepa Filter Stack Overview ................................................................................................................ 9
Conveyor Overview .......................................................................................................................... 10
Powering the T-ZERO ...................................................................................................................... 11
Operating Modes .............................................................................................................................. 13
Operating in Automatic Mode ........................................................................................................... 14
Starting the T-ZERO ...................................................................................................................... 14
Emptying the T-ZERO ................................................................................................................... 16
Stopping the T-Zero ....................................................................................................................... 17
Timers ............................................................................................................................................ 18
Operating in Advanced Mode ........................................................................................................... 19
Creating a Recipe ............................................................................................................................. 21
Loading a Recipe ............................................................................................................................. 24
Modifying a Recipe ........................................................................................................................... 26
Adjusting the Tilt on the T-ZERO ..................................................................................................... 27
Adjusting Conveyor Height ............................................................................................................... 30
Emptying the Trim Bin ...................................................................................................................... 31
Troubleshooting ................................................................................................................................ 32
Trim Bin filled above the hose ....................................................................................................... 32
Excess trim found in the HEPA Filter Stack .................................................................................. 32
Motor won’t turn on ........................................................................................................................ 33
Tumbler hitting blades or vacuum bar ........................................................................................... 33
Trim quality is low .......................................................................................................................... 34

Trim to flower ratio is too high ....................................................................................................... 35
Product will not exit the tumbler ..................................................................................................... 35
Product is sticking to the inside of the tumbler .............................................................................. 36
Tumbler is bouncing around while rotating .................................................................................... 36
Conveyor belt is not moving .......................................................................................................... 36
Contact Us ........................................................................................................................................ 37

1
WARRANTY INFORMATION
Keirton Inc® will repair or replace any parts proven defective in material or workmanship
without charge for a period of one year.
The warranty period will begin on the date the T-ZERO is commissioned by Keirton or
delivered to the original purchaser without an installation agreement. T-ZERO warranty defects
can be remedied directly through the manufacturer. Keirton reserves the right to use any
manufacture-approved replacement part for warranty repair.
If warranty repair is required, contact Keirton at 1-888-254-3204 or [email protected] with
the following information:
• Model and serial number
• Proof of purchase date
• Details of the defect or problem (including photos, video, etc.).
The T-ZERO or defective part must be returned to Keirton for analysis and replacement.
DO NOT RETURN DEFECTIVE T-ZERO PARTS TO THE MANUFACTURER
FOR REPAIR OR WARRANTY CLAIMS UNLESS YOU HAVE BEEN
AUTHORIZED BY KEIRTON TO DO SO.
You may be denied warranty coverage if your T-ZERO has failed due to the following:
• Abuse
• Accidental damage
• Improper installation
• Improper electrical connection
• Improper maintenance
• Neglect
• Normal wear
• Unapproved modifications
Keirton assumes no risk and shall be subject to no liability for damages or loss resulting from
the specific use or application of the product. In no event will Keirton be liable for any special,
incidental, or consequential damages (including loss of use, loss of profit, and claims of third
parties) however caused, whether by negligence of Keirton or otherwise. If you have any
questions regarding your warranty rights and responsibilities, contact Keirton.
The T-ZERO is intended for use on legal aromatic herbs and hops. Check all municipal,
provincial or state, and federal laws and regulations before using the T-ZERO. Keirton does not
promote or condone the use of the T-ZERO in any way that may be deemed illegal.
Allow only persons who have read and understood this manual to operate the T-ZERO. Keirton
claims no liability for any damage or injury that results from the use of the T-ZERO by persons
who have not read and understood the cautions contained in this manual or through any
misuse of the T-ZERO. You are responsible for your safety while operating the T-ZERO. Keep
yourself safe!
To receive maximum performance and satisfaction from the T-ZERO, it is important that you
read and understand the safety and maintenance precautions in this manual before using the
T-ZERO.

2
IMPORTANT SAFETY INFORMATION
GENERAL
• This Operator Manual is for the Twister T-ZERO trimming system.
• The T-ZERO is a high-powered machine that requires special safety precautions to be
practiced while in operation to prevent injury.
• The T-ZERO uses an industrial grade HEPA Filter Stack and fan. It is your
responsibility to understand and take the necessary precautions to minimize the
inherent risks associated with combustible dust from the trimmings. Contact Keirton or
your local Authority Having Jurisdiction (AHJ) for further information on your
responsibility and liability while using the T-ZERO.
• IMPROPER USE OF THE T-ZERO MAY CAUSE SERIOUS OR FATAL INJURY.
Read the precautions and warning labels before operating the T-ZERO.
DO NOT TAMPER WITH OR BYPASS SAFETY SYSTEMS. FAILURE TO ABIDE
COULD CAUSE FATAL INJURY!
• A first-time operator should receive proper instruction before using the T-ZERO.
DO NOT OPERATE UNDER THE INFLUENCE OF ALCOHOL OR DRUGS.
• Follow routine maintenance schedule.
DO NOT REMOVE SAFETY LABELS. REPLACE SAFETY LABELS IF THEY
BECOME DAMAGED OR OBSCURED.
• Lock out power to the T-ZERO before trying to free any jammed parts, disassembly, or
performing maintenance.
DO NOT PROCESS ANYTHING OTHER THAN PLANT MATTER. THE T-ZERO IS
DESIGNED ONLY FOR PLANT MATTER. ANY FOREIGN OBJECTS CAN CAUSE
SERIOUS INJURY OR DAMAGE TO THE T-ZERO!
COMBUSTIBLE DUST HAZARD
Cannabis has been tested by an independent lab under worst-case conditions to be a
class ST1 combustible dust.
IT IS THE RESPONSIBILITY OF THE CUSTOMER TO ENSURE ANY SPECIFIC
APPLICATION REQUIREMENTS OF EXPLOSION VENTING OR IF ANY
ADDITIONAL FIRE PROTECTION AND SAFETY EQUIPMENT MAY BE REQUIRED.
The customer is urged to adhere to NFPA, OH&S, federal, provincial, and local codes and
regulations applicable to industrial ventilation systems.
Equipment must be adequately grounded and bonded by installing contractor.
The iSMF system has been certified as a passive flame front arresting device. It meets
NFPA.

3
Performance based provisions and NFPA 654 and 101 Life Safety Objectives related to
dust collector deflagrations and explosions. According to NFPA 69 Chapter 15, this
equipment must be maintained per the manufacturer’s recommendations. Substituting
filters other than original OEM filters would violate the NFPA standards and void the
performance-based certification of this filter system. This system is a passive isolation
device which meets all of the aforementioned criteria. To sustain this certification the
owner is required to maintain this equipment per the manufacturer’s recommendations and
document periodic inspections as required in chapter 15 of NFPA 69 Standard on
Explosion Prevention Systems.
EQUIPMENT SHOULD BE PROPERLY ANCHORED TO THE GROUND WITH A
SUITABLY SIZED CONCRETE ANCHOR AND ADHERE TO LOCAL CODES AND
REGULATIONS.
BEFORE OPERATING THE T-ZERO
• Read this Operator Manual to familiarize yourself with the T-ZERO’s features and
functions.
• Make sure you wear personal protective equipment.
DO NOT OPERATE WITH LOOSE CLOTHING OR UNCONFINED HAIR. EAR
PROTECTION IS MANDATORY.
• Inspect the area around the T-ZERO and remove hazards to yourself, others, and the
T-ZERO.
• Inspect the T-ZERO for damage and any loose parts.
• Make sure of the following:
•
Ducting and hoses are installed and clamps are secure.
DO NOT TURN ON BLADE MOTOR WITHOUT ALL DUCTING INSTALLED
•
All rollers are installed.
•
Tumbler lid is installed and the knobs are tight.
•
Tumbler belts are installed, tight and parallel to all pulleys.
•
Tumbler spins without contacting blades or vacuum bars.
•
Blade couplings are installed.
•
Tumbler brushes are installed and adjusted so the bristles are poking
through tumbler slots about 1/8”.
•
Electrical cables are clear of moving components such as lifting feet,
tumblers, conveyor belts, doors, etc.
•
Pulse Jet is powered, airline is connected and pressure gauge reads
between 90 and 105 psi.
•
Water line is connected and supply valves open if trimming wet product.
•
Conveyors and Guards are in place and secured.
DO NOT OPERATE TRIMMER WITHOUT CONVEYORS ALIGNED

4
WHILE OPERATING THE T-ZERO
• Only operate the T-ZERO with all components including conveyors, guards, ducting,
vacuum shrouds, and tumblers in place. FAILING TO PROPERLY RE-ASSEMBLE
THE T-ZERO CAN CAUSE DAMAGE TO THE MACHINE OR SERIOUS INJURY
CAUSING DEATH.
DO NOT OPERATE THE T-ZERO WITHOUT THE SUCTION HOSE SECURED
USING THE PROVIDED CLAMP AND GASKET.
• Never leave the T-ZERO unattended while in operation.
• Keep body parts clear of pinch-points that could cause injury to personnel, damage to
other equipment, or the T-ZERO.
• Watch for pinch hazards around the tumbler.
• Never reach inside the tumbler for any reason while in operation.
DO NOT ATTEMPT TO FREE ANY JAMMED PARTS WHILE THE T-ZERO IS IN
OPERATION.
• Make sure water pressure does not exceed 100 psi.
• Shut down the T-ZERO if any ducting or guards move out of place.
DO NOT OPEN ANY DOORS ON THE HEPA FILTER STACK.
• Avoid using the emergency stop button to stop the machine, unless required.
• Avoid unintentionally opening the lid and doors with the machine in operation. Doing so
will trigger the emergency stop function.
DO NOT USE THE TILT FUNCTION WHILE THE CONVEYORS ARE ALIGNED TO
THE MACHINE, YOU WILL RISK DAMAGING THE T-ZERO AND THE
CONVEYORS.
Note: The Pulse Jet operates separately from the machine, ensure the power is off and
pressure is released from the Pulse Jet Air Manifold before opening any of the HEPA Filter
Stack doors or servicing the HEPA Filter Stack.

5
SYSTEM OVERVIEW
DISCLAIMER
Keirton reserves the right to make design changes and/or improvements
in the products they manufacture at any time. Specifications are subject
to change without notice.

6
TRIMMER OVERVIEW

7

8
HORIZONTAL CYCLONE OVERVIEW

9
HEPA FILTER STACK OVERVIEW

10
CONVEYOR OVERVIEW

11
POWERING THE T-ZERO
To power the T-ZERO:
1. Ensure all cables and connectors are installed and secure.
2. Ensure all components, including vacuum shrouds, hoses, ducting and
tumblers are installed.
•
Ensure tumbler belt, vacuum shroud knobs and tumbler sub-lid knobs
are tight.
DO NOT OPERATE WITHOUT CONVEYORS ALIGNED AND GUARDS INSTALLED.
3. Turn on power supply to the T-ZERO.
Note: It takes about two minutes for the T-ZERO HMI to completely power on.
4. Turn the Pulse Jet on the HEPA Filter Stack to Continuous Cleaning.
5. Check the HMI screen for any message that may need to be addressed to
operate the T-ZERO.
To reset the Emergency Stop, pull the knob out.

12
6. Tap Continue to start on the HMI screen. The HMI goes into Automatic mode.
Note: The T-ZERO also has physical buttons for start, empty and stop on the enclosure
below the HMI screen. All buttons will work if the HMI does not power on.

13
OPERATING MODES
The T-ZERO has two operating modes: Automatic (left) and Advanced (right).
The Automatic mode operates the T-ZERO using recipes with pre-configured settings for
the following components:
•
Tumblers
•
Blades
•
Vacuum
•
Infeed Conveyor
•
QC Conveyor
•
Lifting Legs*
*Lifting Legs do not adjust automatically; the machine angle is saved but must be adjusted in
Advanced Mode after loading the recipe (for instructions see Adjusting the Tilt on page 27).
Advanced Mode allows you to change the settings on the T-ZERO, such as:
•
Starting and stopping motors individually.
•
Changing the speed set points for individual motors
•
Saving the combination of current set points as a recipe
•
Adjusting the machine’s tilt angle.

14
OPERATING IN AUTOMATIC MODE
Automatic Mode is a simplified way to run the T-Zero. Automatic mode only allows the
user to load a recipe then start, stop or empty the machine.
Note: Due to safety reasons, adjusting the machine tilt is only available in Advanced Mode.
WHEN LOADING A NEW RECIPE, ALWAYS ENSURE THE MACHINE IS AT THE
CORRECT ANGLE.
STARTING THE T-ZERO
After the T-ZERO has powered up, complete the following steps to load a recipe:
1. Ensure the correct recipe is loaded (for instructions, see Loading a Recipe on
page 24).
2. Adjust the machine to the correct tilt angle (for instructions, see Adjusting the
Tilt on page 27 for instructions).
3. Tap the green START button on the HMI screen. All motors will start in a
preprogramed sequence.

15
Countdown timers appear on motors pending to start. The delay time for each can be
modified in Engineering Mode (explained in the Maintenance and Cleaning Manual).
After each motor has started, the HMI will display the setpoint and the current draw of
each machine.
The image below shows the feed conveyor readings. It is currently set at speed of 4 feet
per minute, and the motor is drawing 0.5A. Keep a log of motor currents to notice when
power draws change, this could be an indicator that service is required soon.

16
EMPTYING THE T-ZERO
The orange EMPTY button on the T-ZERO shuts off the feed conveyor, blades, and
vacuum, then keeps the tumbler and QC conveyor running to allow product to flow out of
the machine.
Press this button after the feed conveyor has emptied and most product has flowed down
to the second tumbler. This usually takes 2-4 minutes.
Once the empty button is pressed, you will see a countdown start on the tumbler motor
reading.
This number can be modified in the Engineering Mode (explained in Maintenance and
Cleaning manual).

17
STOPPING THE T-ZERO
There are 3 different buttons to shut down the T-Zero: the HMI stop button, the physical
stop button, and the emergency stop button.
Use the emergency stop any time there is a safety issue, or anything unexpected happens
with the machine. The emergency stop will apply a brake to the motor, slowing it down
faster.
Note: Opening up any door on the T-Zero will shut down the machine similarly.
The physical stop button and HMI stop button have the same function. These buttons will
stop the machine, but the motors will take longer to slow down.
Note: in normal operation it is recommended to use the stop button instead of the
emergency stop because it puts less stress on the motors.