Virtus H 80 Series User manual

OPERATING MANUAL
Virtus Equipment
9120 Centerlinks Commerce Dr., Unit 4
Fort Myers, FL 33912
2392191500
[e-mail]
www.Virtus-Equipment.com
Virtus Equipment
9120 Centerlinks Commerce Dr., Unit 4
Fort Myers, FL 33912
2392191500
[e-mail]
www.Virtus-Equipment.com
H80 SERIES
Operating Manual H 80 Series
Virtus Equipment
9120 Cen
terlinks Commerce DR.,
Unit 4
Fort Myers, FL 33912
Phone: [phone]
[e-mail]
www.Virtus-Equipment.com

ORIGINAL INSTRUCTION
PART A: Basic machine
Slow speed Granulator A18 Series
Virtus Equipment 2023, All rights reserved
Page 2
Table of Contents
1Information on this instruction manual ________________________________ 7
2Technical data ____________________________________________________ 8
3General Information _______________________________________________ 12
3.1 Copyright____________________________________________________________ 12
3.2 Application __________________________________________________________ 12
3.3 Safety_______________________________________________________________ 12
3.4 Inspection of goods ___________________________________________________ 12
4General safety advice _____________________________________________ 13
4.1 Safe operation of the machine __________________________________________ 13
4.2 Use in accordance with the regulations___________________________________ 14
4.3 Liability and Responsibility _____________________________________________ 16
4.4 Structural changes, spare parts, accessories ______________________________ 17
4.5 Operation manuals from other manufacturers _____________________________ 17
4.6 Noise levels and noise control measures _________________________________ 18
4.7 Work stations ________________________________________________________ 18
4.8 Remaining risks ______________________________________________________ 19
4.8.1 Mechanical dangers ________________________________________________________ 19
4.8.2 Electrical dangers__________________________________________________________ 20
4.8.3 Dangers caused by the control system _________________________________________ 21
4.8.4 Thermal dangers __________________________________________________________ 21
4.8.5 Dangers caused by noise____________________________________________________ 21
4.8.6 Dangers caused by vibration _________________________________________________ 22
4.8.7 Dangers caused by materials and substances____________________________________ 22
4.8.8 Danger caused by manipulation of the protective devices ___________________________ 22
4.9 Protective devices ____________________________________________________ 23
4.9.1 Safety device for screen holder _______________________________________________ 23
4.9.2 Safety device for hopper ____________________________________________________ 24
4.9.3 Safety device for suction trough _______________________________________________ 25
4.9.4 Splash guard _____________________________________________________________ 26
4.9.5 Safety markings ___________________________________________________________ 26
4.10 Authorized persons__________________________________________________ 27
4.11 Personal protective gear _____________________________________________ 28
4.12 Safety measures at the application site _________________________________ 29
4.13 Fire fighting agents __________________________________________________ 29
4.14 Cleaning agents_____________________________________________________ 29
4.15 Conduct in case of an emergency ______________________________________ 29
4.16 Classification of specific safety advice__________________________________ 30
1

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 2
Table of Contents
1Information on this instruction manual ________________________________ 6
2Technical data ____________________________________________________ 7
3General Information _______________________________________________ 10
3.1 Copyright_____________________________________________________________10
3.2 Application ___________________________________________________________10
3.3 Safety________________________________________________________________10
3.4 Inspection of goods ____________________________________________________10
4General safety advice _____________________________________________ 11
4.1 Safe operation of the machine ___________________________________________11
4.2 Use in accordance with the regulations____________________________________12
4.3 Liability and Responsibility ______________________________________________14
4.4 Structural changes, spare parts, accessories _______________________________15
4.5 Operation manuals from other manufacturers ______________________________15
4.6 Noise levels and noise control measures __________________________________16
4.7 Work stations _________________________________________________________16
4.8 Remaining risks _______________________________________________________17
4.8.1 Mechanical dangers ________________________________________________________ 17
4.8.2 Electrical dangers__________________________________________________________ 19
4.8.3 Dangers caused by the control system _________________________________________ 19
4.8.4 Thermal dangers __________________________________________________________ 20
4.8.5 Dangers caused by noise____________________________________________________ 20
4.8.6 Dangers caused by vibration _________________________________________________ 20
4.8.7 Dangers caused by materials and substances____________________________________ 21
4.8.8 Danger caused by manipulation of the protective devices ___________________________ 21
4.9 Protective devices _____________________________________________________22
4.9.1 Safety device for housing flap ________________________________________________ 22
4.9.2 Safety device for the granulator housing ________________________________________ 23
4.9.3 "V"-belts, disk flywheels and shaft protector _____________________________________ 25
4.9.4 Splash guard _____________________________________________________________ 26
4.9.5 Safety markings ___________________________________________________________ 26
4.9.6 Rotor look________________________________________________________________ 27
4.10 Authorized persons___________________________________________________28
4.11 Personal protective gear ______________________________________________29
4.12 Safety measures at the application site __________________________________30
4.13 Fire fighting agents___________________________________________________30
4.14 Cleaning agents _____________________________________________________30
4.15 Conduct in case of an emergency_______________________________________30
4.16 Classification of specific safety advice___________________________________31

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 3
5Description of the machine _________________________________________ 32
5.1 Grinding material in feed ________________________________________________32
5.1.1 In feed hopper ____________________________________________________________ 32
5.1.2 Additional in feed device ____________________________________________________ 32
5.2 Base frame ___________________________________________________________33
5.3 Drive_________________________________________________________________34
5.4 Granulator upper section________________________________________________35
5.5 Granulator lower section ________________________________________________36
5.5.1 Rotor and cutting knives_____________________________________________________ 36
5.5.2 Screen and screen support __________________________________________________ 38
5.6 Discharge of grinding material ___________________________________________39
5.7 Hydraulic opening device _______________________________________________40
5.7.1 Hydraulic controls__________________________________________________________ 41
6Initial startup_____________________________________________________ 42
6.1 General Advice ________________________________________________________42
6.2 Requirements at the application site ______________________________________42
6.3 Unloading and installing the machine _____________________________________43
6.4 Electrical connection ___________________________________________________44
6.5 Machine check prior to initial start-up _____________________________________46
7Operation _______________________________________________________ 47
7.1 Machine checks before switching on the machine ___________________________47
7.2 Switch on machine _____________________________________________________48
7.3 Switch off machine_____________________________________________________48
7.4 Manual in feed of grinding material _______________________________________48
8Maintenance _____________________________________________________ 49
8.1 Safety advice__________________________________________________________49
8.2 Maintenance plan ______________________________________________________49
8.3 Checking the protective devices__________________________________________50
8.4 Opening and closing the granulator_______________________________________51
8.4.1 Opening the granulator upper section __________________________________________ 51
8.4.2 Closing the granulator ______________________________________________________ 52
8.5 Cleaning the machine __________________________________________________53
8.6 Replacing the main bearings_____________________________________________54
8.6.1 Dismounting the main bearings _______________________________________________ 54
8.6.2 Mounting the main bearing___________________________________________________ 55
8.7 Lubricating the main bearings ___________________________________________56
8.7.1 Lubrication intervals: _______________________________________________________ 56
8.7.2 Check lubricant quality ______________________________________________________ 56
8.7.3 Replacing or refilling lubricant ________________________________________________ 56
8.7.4 List of lubricants ___________________________________________________________ 58
8.8 Mounting and dismounting the DOKO tensioning element ____________________59

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 4
8.8.1 Installation and operation ____________________________________________________ 59
Tightening torque of the screws: 395Nm _______________________________________________ 59
8.8.2 Mounting the DOKO tensioning element ________________________________________ 60
8.8.3 Dismounting the DOKO tensioning element______________________________________ 61
8.9 Mounting and dismounting TAPER-LOCK tensioning element _________________62
8.9.1 Table for the tightening torque of the screws _____________________________________ 62
8.9.2 Mounting the TAPER-LOCK tensioning element __________________________________ 63
8.9.3 Dismounting the TAPER-LOCK tensioning element _______________________________ 63
8.10 Replacing the screen _________________________________________________64
8.11 Work on the "V"-belts _________________________________________________66
8.11.1 Checking the tension force of the "V"-belt _______________________________________ 66
8.11.2 Retensioning and relaxing the "V"-belt__________________________________________ 67
8.11.3 Checking "V"-belt condition, replacing "V"-belt____________________________________ 67
8.12 Working on the cutting knives__________________________________________68
8.12.1 Replacing and checking the cutting knife mountings _______________________________ 68
8.12.2 Checking the condition of the cutting knives _____________________________________ 69
8.12.3 Dismounting the cutting knives________________________________________________ 69
8.12.4 Mounting the cutting knives __________________________________________________ 70
8.12.5 Sharpening cutting knives ___________________________________________________ 71
8.12.6 Setting the cutting knives ____________________________________________________ 75
8.12.7 Transporting and storing the cutting knives ______________________________________ 78
8.13 Deflection wedge removal _____________________________________________79
9Troubleshooting__________________________________________________ 81
9.1 Machine blocks or switches itself off ______________________________________81
9.2 Rotor does not grip bulky material ________________________________________81
9.3 Overheating of the grinding material ______________________________________81
9.4 Unusual vibrations _____________________________________________________82
9.5 Extreme cutter wear ____________________________________________________82
9.6 Bearings too hot _______________________________________________________82
9.7 Too many fines in grinding material_______________________________________82
9.8 Cutting gap alters during operation _______________________________________82
9.9 Screen damage ________________________________________________________83
9.10 Granulator does not start ______________________________________________83
9.11 Granulator blocks when under load _____________________________________83
9.12 Frequent switching off of grinding material in feed device __________________83
10 Storage, disposal, transportation __________________________________ 84
10.1 Storage_____________________________________________________________84
10.2 Disposal ____________________________________________________________84
10.3 Transportation_______________________________________________________84
11 Hydraulic Maintenance__________________________________________ 86
12 Customer service and spare parts orders ___________________________ 88
13 Spare Parts Lists________________________________________________ 89

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 5
13.1 H80/120 ____________________________________________________________89
13.2 H80/160 ____________________________________________________________93
13.3 Machine complete ____________________________________________________96
13.4 Machine section view _________________________________________________97
13.5 Rotor knife __________________________________________________________98
13.6 Stator knife _________________________________________________________99
13.7 Deflection wedge____________________________________________________100
13.8 Rotor assembly pulley side ___________________________________________101
13.9 Rotor assembly no pulley side ________________________________________102
14 Hydraulic Unit _________________________________________________ 103
14.1 Hydraulic Diagram __________________________________________________103
14.2 Spare parts list hydraulic unit _________________________________________104
14.3 Hydraulic Unit ______________________________________________________105
15 Clarification for Personal Training _________________________________ 106
16ADDITION_____________________________________________________ 107

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 6
1 INFORMATION ON THIS INSTRUCTION MANUAL
Author: VIRTUS Equipment
No part of this operation manual may be reproduced, distributed or
used in any shape or form, stored in a data processing system or
translated into another language without written permission.
This operation manual serves to help you to get to know your
machine and how to make use of its application possibilities in
accordance with the regulations.
The operation manual contains important information on how to
operate the machine safely, correctly and economically. Following
this advice will help you to avoid danger, minimize repair costs and
down times and to increase the reliability and durability of the
machine.
Before you begin to work on and with the machine, please read
the operation manual thoroughly. Only after you have read and
understood the contents of this operation manual may you begin
work on and with the machine. Keep this operation manual at the
application site for future reference.
References to chapters, plans and other documents as well as key
markings are written in italics.
Instructions on handling are marked in this way.
The machine is designed in modular system and offers a wide
spectrum of variations to do justice to your expectations. In order
that you receive with the delivery of your machine all the
information relevant for you, this operation manual is divided into
three parts:
1. Part A: Information of the basic machine.
2. Part B: Plans, operation manuals for systems from other manufac-
turers etc.
Should you wish to order further operation manuals, please quote
the machine number.
We wish you every success with your new machine!

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 7
2 TECHNICAL DATA
H 80/120
Cutting chamber opening:
Data in mm:
1150x915
Rotor dimension:
Diameter in mm:
Width of cut in mm:
800
1200
Rotor type S-5
5-knives-version
Rotor knives:
Rows of knives:
5
No. of rotor knives:
5 x 2
Rotor type S-7
7-knives-version
Rotor knives:
Rows of knives:
7
No. of rotor knives:
7 x 2
Rotor type S-9
9-knives-version
Rotor knives:
Rows of knives:
9
No. of rotor knives:
9x2
Stator knives:
No. of stator knives:
2
Rows of stator knives:
2
Deflection wedge:
Yes/No
Block knife:
No. of block knives:
2
Rotor speed (50 Hz):
rpm
370
Width:
Data in mm:
2360
Length:
Data in mm:
3060
Height:
Data in mm:
3820
Drive motor:
Power in kW:
132; 160
Screen:
Type and screen hole size
dependent on the
application and customer
requirements.
Hydraulic
opening of
screen holder
Opening device:
Standard
Hydraulic
opening
Machine weight:
In kg
Approx. 10400
Electrical connection data:
markings are attached to the machine
Noise level:
Depends on plant location and
type of grinding material!
Without noise equipment,
in dB(A):
Approx. 110
With noise equipment
in dB(A):
depends on
type of
soundproof
Dimensions:
See Layout drawing

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 8
H 80/160
Cutting chamber opening:
Data in mm:
1572x915
Rotor dimension:
Diameter in mm:
Width of cut in mm:
800
1600
Rotor type S-5
5-knives-version
Rotor knives:
Rows of knives:
5
No. of rotor knives:
5 x 4
Rotor type S-7
7-knives-version
Rotor knives:
Rows of knives:
7
No. of rotor knives:
7 x 4
Rotor type S-9
9-knives-version
Rotor knives:
Rows of knives:
9
No. of rotor knives:
9x4
Stator knives:
No. of stator knives:
4
Rows of stator knives:
2
Deflection wedge:
Yes/No
Block knife:
No. of block knives:
4
Rotor speed (50 Hz):
rpm
370
Width:
Data in mm:
2700
Length:
Data in mm:
3140
Height:
Data in mm:
4250
Drive motor:
Power in kW:
160; 200
Screen:
Type and screen hole size
dependent on the
application and customer
requirements.
Hydraulic
opening of
screen holder
Opening device:
Standard
Hydraulic
opening
Machine weight:
In kg
Approx. 14000
Electrical connection data:
markings are attached to the machine
Noise level:
Depends on plant location and
type of grinding material!
Without noise equipment,
in dB(A):
Approx. 110
With noise equipment
in dB(A):
depends on
type of
soundproof
Dimensions:
See Layout drawing

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 9
H 80/200
Cutting chamber opening:
Data in mm:
1972x915
Rotor dimension:
Diameter in mm:
Width of cut in mm:
800
2000
Rotor type S-5
5-knives-version
Rotor knives:
Rows of knives:
5
No. of rotor knives:
5 x 4
Rotor type S-7
7-knives-version
Rotor knives:
Rows of knives:
7
No. of rotor knives:
7 x 4
Rotor type S-9
9-knives-version
Rotor knives:
Rows of knives:
9
No. of rotor knives:
9x4
Stator knives:
No. of stator knives:
4
Rows of stator knives:
2
Deflection wedge:
Yes/No
Block knife:
No. of block knives:
4
Rotor speed (50 Hz):
rpm
370
Width:
Data in mm:
2640
Length:
Data in mm:
3470
Height:
Data in mm:
4570
Drive motor:
Power in kW:
2x 160
Screen:
Type and screen hole size
dependent on the
application and customer
requirements.
Hydraulic
opening of
screen holder
Opening device:
Standard
Hydraulic
opening
Discharge screw
Power in kW:
2x 1.1
Diameter in mm:
400
Machine weight:
In kg
Approx. 16000
Electrical connection data:
markings are attached to the machine
Noise level:
Depends on plant location and
type of grinding material!
Without noise equipment,
in dB(A):
Approx. 110
With noise equipment
in dB(A):
depends on
type of
soundproof
Dimensions:
See Layout drawing

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 10
3 GENERAL INFORMATION
3.1 Copyright
VIRTUS EQUIPMENT holds the copyright for these operation
instructions, entrusted to the owner of the granulator for his
personal use. These contains technical instructions and drawings
which are not be copied complete or in part, distributed or used for
reasons of unauthorized competition or for informing others.
3.2 Application
The granulator is designed for size-reduction of plastic material
such as PE, PP, PVC etc. The user is responsible for
consequences resulting from incorrect operation: This will lead to
the loss of the warranty as well as any compensation claims.
3.3 Safety
The granulator has been constructed in accordance to the general
standards of technology and is fitted with safety devices to prevent
accidents that could endanger the life or health of the operator.
The company operating the unit is responsible for the compliance
of the safety regulations. We recommend staff training courses at
regular intervals subsequent to initial training during
commissioning.
3.4 Inspection of goods
The goods must be inspected by the purchaser to ensure that the
delivery is complete and free from damage during transport. In the
event of any queries VIRTUS must be informed with regard to
missing items or transport damage. In the event of actual transport
damage, written notification including photographs should be
made and sent to the transport company as well as sent to
VIRTUS immediately after delivery.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 11
4 GENERAL SAFETY ADVICE
4.1 Safe operation of the machine
The machine is built according to the state of the art and
recognised safety regulations.
It is equipped with protective devices; however there is still the
threat of danger in case of incorrect conduct or misuse:
•for the health of the operator and that of other persons,
•for the machine,
•for the environment,
•for material assets belonging to the company and the operator.
All persons involved in:
•transportation and storage,
•start-up and shutdown,
•operation,
•setting and fitting
•maintenance and waste disposal...
of the machine must carefully read and take note of the following
advice. However, not only the general safety advice listed in this
chapter has to be observed, but also the safety advice which is
added specifically in the other chapters.
Failure to heed this safety advice can lead to loss of all
compensation claims.
Furthermore, the existing rules and regulations for the prevention
of accidents as well as in house company working, operational
and safety regulations have to be observed.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 12
4.2 Use in accordance with the regulations
The operational safety of the delivered machine is only guaranteed
for use in accordance with the regulations!
This regulation use is only achieved if the following points are
observed and fulfilled.
Manufacturing process and grinding material
The granulator is suitable exclusively for the grinding of material,
which corresponds to the agreed customer-specific specifications
in all points (see Contract of sale).
Any other work or design will differ from the specified
requirements. VIRTUS America will not be held responsible. The
specified requirements also include all information found in the
owner’s manual such as maintenance and service.
Any change in the specifications or requirements must be brought
to the attention of VIRTUS.
Suction unit
If emissions occur during grinding of material, which exceed the
permissible legal values for contaminants in the air, the granulator
may only then be operated when the customer on site has
installed a suitable air suction device.
Safety device for the in feed hopper
In the case that your design of granulator does not contain any
additional in feed device (e.g. nip roll feed device), the in feed
hopper must be safeguarded in a suitable way against persons
reaching in or falling in.
Connection of the Emergency Stop button
The machine may only be operated with the installed Emergency
Stop buttons. In case no Emergency Stop buttons have been
installed, an Emergency Stop button must be mounted on the
control cabinet, the second on the material in feed.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 13
Miscellaneous:
•The working conditions and instructions specified in this
operation manual must be adhered to.
•The machine is not suitable for operation in an explosive
environment.
•Faults, which can impair safety, are to be reported immediately
and eliminated by a trained and skilled specialist.
•The machine may only be used in the industrial application
range.
General Requirements Safety Information
•The service and maintenance in this owner’s manual must be
performed on a regular basis.
•The machine is not designed for operation in a volatile
environment.
•Faults that could be a safety factor must be reported
immediately and repaired by experienced personal.
•The machine must only be installed in a production type
building.
Known uses not in accordance with the regulations
Never grind grinding materials, which do not correspond to the
agreed customer-specific specifications. If this occurs, there is a
danger to persons and the possibility of the machine being
damaged.
Informal Safety Requirements
The owner’s manual should always be located near the machine.
New excerpts or additions to the owners’ manual must always be
replaced to include any safety requirements or environmental re-
quirements.
All safety or caution signs must be visual and easy to read.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 14
4.3 Liability and Responsibility
The General Conditions of Sale and Delivery basically apply.
These conditions apply no later then the end of the contract. Liabil-
ity and or responsibility to seller do not apply to the following;
Equipment is not properly used for its specific application.
Non-conforming installation, commissioning or service of
the machines.
Operation of the equipment without proper safety guards.
Not conforming to the directions of the owners’ manual re-
garding transport, storage, installation, commissioning or
servicing the equipment.
Any designs alterations on the machine.
Any changes on the program logic which can alter the ma-
chine operation or electrical function.
Changes in the logic function.
In proper maintenance or serving the machines that can
lead to extraordinary wear
In proper serving of equipment
Spontaneous crashes caused by foreign objects falling into
the machine or acts of God
We honour a 12 month guarantee valid after delivery under the
conditions that originally delivery or original parts from VIRTUS
Equipment are used or accepted for use in accordance with our
owner’s manual.
Otherwise the guarantee will be considered invalid. Excluded are
wear and tear parts such as knives, screens, drive belts, bearings,
etc.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 15
4.4 Structural changes, spare parts, accessories
For reasons of safety, remodelling and modifications to the
machine, in particular to the electrical devices, are only
permissible by arrangement with the manufacturer!
Replace faulty parts immediately. Only use original spare parts or
spare parts from other manufacturers, which correspond, to the
original spare parts with regards to function, stress and safety.
This applies in particular for reasons of EMC (electro-magnetic
compatibility) for electrical components.
The use of unsuitable parts can impair resistance to rays and
increase the emission of rays!
If parts are replaced which are relevant for safety, they must be
checked afterwards for proper functioning.
Only use accessories, which have been approved by the
manufacturer. Use of accessories can change work with the
machine. You must therefore observe the additional advice for
your work and your safety. Read Part B: Accessories, before you
commission the machine.
4.5 Operation manuals from other manufacturers
Integrated in the machine are systems from other manufacturers.
When working on or with these systems, please observe the
advice in the operation manuals from the respective manufacturer.
These operation manuals are enclosed with the machine
documentation.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 16
4.6 Noise levels and noise control measures
The H series granulator standard design is without a sound proof
enclosure.
The noise level of the granulator at idle speed is approximately
80-85 dB(A).
Especially by rigid materials soundproofing is recommended due
to a noise level of up to 120 dB(A) when in operation.
In order not to exceed the noise level of 85 dB(A) is the purchaser
required to provide soundproofing.
The noise level can be affected by foundation static or
dynamic, aux. blowers etc. or other additional equipment.
Therefore it is necessary to actually determine if the noise level is
directly coming from the machine or another accessory equipment.
VIRTUS EQUIPMENT offers the following equipment to reduce
the noise levels;
Two piece soundproof box ( one piece stationary, one piece
moveable ) also available with soundproof hopper.
Walk-in type soundproof enclosure.
CAUTION
The user or purchaser is responsible for compliance with
the instructions and procedures !
4.7 Work stations
During normal operation, the work station is the station at the in
feed of the grinding material.
For maintenance work, the whole area around the machine is at
your disposal.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 17
4.8 Remaining risks
The machine is constructed so that you are able to operate it
safely. Structurally non-avoidable dangers are prevented as well
as possible by the protective devices. A certain remaining risk
does however always remain! Being aware of these remaining
risks of the machine will help you to structure your work more
safely and in so doing to avoid accidents.
To avoid danger, please observe in addition the specific safety
advice in the individual chapters.
4.8.1 Mechanical dangers
Type of danger:
Danger of crushing by heavy parts falling
down or falling over.
Activity:
Unloading and transporting the machine or
machine components.
Possible
consequences:
Serious injury could result.
Preventative
measures:
Wear personal protective gear. Follow the
instructions in this Operation manual.
Type of danger:
Danger of cutting caused by sharp cutting
knives, even when the rotor is stationary.
Activity:
Knife replacement, knife setting, and knife
sharpening, other maintenance work.
Possible
consequences:
Serious injury, particularly to hands and
fingers can result.
Preventative
measures:
Wear personal protective gear. Follow the
instructions in this Operation manual.
Type of danger:
Danger of crushing when closing the
granulator upper section.
Activity:
Maintenance work.
Possible
consequences:
Serious injury can result.
Preventative
measures:
When closing the granulator upper section,
ensure that no persons are in the danger
area.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 18
Type of danger:
Tripping over cables and other objects lying
around.
Activity:
All activities.
Possible
consequences:
Serious injury can result.
Preventative
measures:
Lay cables in accordance with the
regulations. Keep work station clean and tidy.
Type of danger:
Danger of crushing, cutting and amputation
caused by up to 3 minute run down of the
rotor.
Activity:
Maintenance work.
Possible
consequences:
Serious injury or death can result.
Preventative
measures:
The housing upper section must always be
tightly locked during operation using the
connecting screws. Do not make the run
down safety devices ineffective by using
technical aids or other manipulations. Never
check by hand whether the rotor has come to
a stop.
Type of danger:
Danger of pulling in caused by running "V"-
belts.
Activity:
All activities.
Possible
consequences:
Hair, jewellery etc. can be pulled into the
machine. Serious injury can result.
Preventative
measures:
Never dismount "V"-belt protection and
window.

PART A: Basic machine
Granulator
H 80 Series

VIRTUS 2023, All rights reserved Page 19
4.8.2 Electrical dangers
Danger:
Direct or indirect contact with live parts in the
terminal box.
Activity:
Maintenance work, start-up.
Possible
consequences:
Serious injury or death.
Preventative
measures:
Trained electricians may only carry out all
work on the electrical equipment.
If work is necessary on parts, which conduct
dangerous voltage, a second person should
be called in who can break the power supply
in case of emergency.
The yellow-marked lines conduct voltage
even when the machine is switched off (main
switch to 0).
Only use original safety fuses with stipulated
intensity of current.
Faulty electrical components must be
replaced immediately.
If faults occur in the electrical energy supply,
switch machine off immediately.
The terminal box must be locked during
operation. Before opening the terminal box:
Main switch to 0.
4.8.3 Dangers caused by the control system
Type of danger:
Danger caused by failure of the Emergency
Stop function.
Activity:
All activities.
Possible
consequences:
Serious injury or death.
Preventative
measures:
It must be guaranteed that failure of an
Emergency Stop button is displayed and
leads to an immediate stop of the machine.