Martin CleanScrape User manual

CleanScrape
®
Medium, Large
& HD Cleaner
Operating Instructions
Version: 0
Language: EN
M4033ESA-06/20

2M4033ESA-06/20
Table of Contents
1General.................................................................................................................. 3
1.1 About these operating instructions ................................................................. 3
1.2 General information on cleaners..................................................................... 4
1.3 Intended usage............................................................................................... 4
1.4 Use in hazardous areas according to the ATEX directive............................... 5
1.5 Personnel qualification.................................................................................... 6
1.6 Technical data ................................................................................................ 6
1.7 Requirements for the usage site..................................................................... 7
2Safety..................................................................................................................... 8
2.1 General safety instructions............................................................................. 8
2.2 Personal protective equipment....................................................................... 9
2.3 Safety markings on the system....................................................................... 9
2.4 Special safety instructions for usage in ATEX areas .................................... 10
3Preparations before installation........................................................................ 11
3.1 Required maximum of tools and materials.................................................... 11
3.2 Checking the operating conditions................................................................ 12
3.3 Unpacking/transportation.............................................................................. 12
3.4 Identification of the correct installation position ............................................ 13
4Before Installation Belt Cleaner ........................................................................ 18
4.1 Installing chains............................................................................................ 19
5Installing Belt Cleaner & Tensioners................................................................ 20
5.1 Locating belt cleaner..................................................................................... 21
6After Installing Belt Cleaner .............................................................................. 29
7Maintenance / Servicing / Repair ...................................................................... 31
7.1 Replacing Breakaway Link ........................................................................... 33
8Troubleshooting................................................................................................. 35
9Disassembly / Recycling / Disposal.................................................................. 38
10Part Numbers...................................................................................................... 39
11Appendix............................................................................................................. 45

3M4033ESA-06/20
1 General
1.1 About these operating instructions
These operating instructions apply solely for cleaners and are intended for
those persons who install cleaners, commission them, and monitor their usage.
The operating instructions must be kept for the lifetime of the cleaners and must
be made available in an orderly condition to all persons entrusted with work with
and on the cleaners.
All illustrations are schematic representations and make no claim to
completeness.
NOTE
Before starting work on the cleaner or the conveyor, these operating
instructions must be read and understood completely

4M4033ESA-06/20
1.2 General information on cleaners
Cleaners are used in the discharge area of the belt conveyor to remove
adhering bulk material from conveyor belts. The cleaning result is increased by
using multiple cleaners.
Pre-cleaners are installed at the head pulley, below the discharge parabola of
the bulk material.
Secondary cleaners are installed behind pre-cleaners when viewed in the
direction of belt travel and are used for fine cleaning of the conveyor belts. The
typical installation position is behind the discharge pulley, but still inside the
chute enclosure.
These operating instructions describe actions and measures for the use of
cleaners on closed discharge enclosures of the conveyor. If the discharge area
of the conveyor is not enclosed, the operator must take precautions to ensure
that the cleaners can be relocated, installed, maintained and repaired in the
same way.
Furthermore, the operator must ensure that all necessary protective measures
for safe operation of the system with cleaners have been taken.
Cleaners must be easy to check, clean and maintain. Appropriate means of
access must be provided for this purpose.
1.3 Intended usage
Cleaners are used for mechanical removal of bulk material sticking on conveyor
belts with smooth surfaces. They may only be used:
in the industrial area above ground
on the carrying side of the conveyor belts
according to the technical data in the documentation
in the installation position as described in the documentation
The usage of the cleaners is only considered to be as intended if the following
conditions are also fulfilled:
Before starting initial work, the personnel must have been instructed on
the work on the system and on all relevant issues of occupational health
and safety
Any personal protective equipment required must be worn
The provisions of the operating instructions must be observed in full.
Operation of the cleaners under deviating conditions and unauthorised
modification of the cleaners is considered as improper usage.

5M4033ESA-06/20
1.4 Use in hazardous areas according to the ATEX directive
The standard version of the cleaner is NOT suitable for use in hazardous areas.
Martin Engineering offers special product variants that are suitable for use in
ATEX zones 22 and 21 under certain circumstances. These product variants
contain mandatory additional components or have special product
characteristics.
Special instructions for the use of cleaners in ATEX zones must be observed.
Requirements for the use of these special product variants:
Minimum ignition energy of the bulk material: >10 mJ
Belt connections are vulcanised
There are no substances in the bulk material which could generate
impact sparks on the cleaners.
Coatings (corrosion protection) have standard layer thicknesses
(max.80µm)
Earthing cables are properly installed (Bleeder resistance < 106Ω)

6M4033ESA-06/20
1.5 Personnel qualification
Only authorised and qualified personnel may be entrusted with work with and
on the conveyors and cleaners. Persons are considered qualified if they have
the qualification of a skilled worker and meet all the following requirements:
completed professional training or at least 5 years of professional
experience in the field,
technical experience,
knowledge of the relevant occupational health and safety regulations.
The persons must
be able to assess the tasks and risks assigned to them,
be able to recognise potential dangers in advance,
be physically and cognitively able to operate the conveyors and
cleaners safely,
have been trained and instructed appropriately,
have read and understood these operating instructions.
Work on earth connections, cabling, switching, control, regulation, automation
and all electrical components may be carried out only by trained electricians.
1.6 Technical data
Operating parameter Size M
Belt widths:
500 … 1.800 mm
Pulley diameter:
550 … 900 mm
Belt speed:
4 m/s for conveyor belts with mechanical splices
8 m/s for conveyor belts with vulcanised splices
Temperature range:
-25 … +80°C
Reversing operation:
Can remain in use, but no cleaning function

7M4033ESA-06/20
1.7 Requirements for the usage site
For information on the required spatial requirements of the cleaner and the
tensioner, see the following chapters.
Operating parameter Size L
Belt widths:
800 … 2.400 mm
Pulley diameter:
900 … 1.250 mm
Belt speed:
4 m/s for conveyor belts with mechanical splices
8 m/s for conveyor belts with vulcanised splices
Temperature range:
-25 … +80°C
Reversing operation:
Can remain in use, but no cleaning function
Operating parameter Size HD
Belt widths:
1.000 … 3.000 mm
Pulley diameter:
800 … 2.000 mm
Belt speed:
6 m/s for conveyor belts with mechanical splices
8 m/s for conveyor belts with vulcanised splices
Temperature range:
-25 … +80°C
Reversing operation:
Can remain in use, but no cleaning function

8M4033ESA-06/20
2 Safety
2.1 General safety instructions
DANGER
Entanglement in conveyor belt
Clothing or body parts can become entangled in the conveyor and cause serious or
fatal injuries.
Tensions may be released in the conveyor belt and cause movement of the bulk
material without prior detection.
Do not carry out any work on the conveyor belt while it is in operation or
reach into the moving conveyor belt!
Secure the conveyor against unintentional restart! Use lockout / tagout /
blockout / testout procedures!
Install suitable guards to prevent access to the infeed section!
WARNING
Danger of injury due to unapproved component parts
Unapproved parts can directly or indirectly cause personal injury or damage to
property.
Only use accessories and spare parts that are distributed by the
manufacturer or are explicitly approved (in writing)!
WARNING
Working in confined spaces
Areas in which cleaners are installed are often difficult to access and include
confined spaces. It is often necessary to work in difficult positions.
Determine whether occupational safety measures are necessary that go
beyond the usual measures!
WARNING
Risk of falling down
Cleaners are often mounted and operated in heights. There may be a risk of falling
down.
Therefore, use a fall protection device when installing in higher working
areas!

9M4033ESA-06/20
2.2 Personal protective equipment
Persons carrying out work on cleaners must wear suitable personal protective
equipment.
Minimum requirements:
2.3 Safety markings on the system
The safety markings on the cleaners must be kept in good condition and clearly
visible at all times.
If parts of the system are replaced, ensure that the spare parts are or will be
provided with appropriate warning signs.
Symbol
Meaning
Wear head and eye protection.
Wear at least ankle-high foot protection.
Use gloves.
Use fall protection.

10 M4033ESA-06/20
2.4 Special safety instructions for usage in ATEX areas
DANGER
Usage in ATEX zones 22 and 21
Combustible dust can cause explosions and thus cause serious or fatal injuries.
Ensure that all explosion-related parameters and operating modes are
observed.
Observe all instructions for usage in hazardous areas.
Ensure that the bulk material meets the specified requirements before the
conveyor is switched on.
Ensure that the cleaners are suitable for all explosion-related parameters and
operating modes of the application.
Ensure that the conveyor belts do not have any metallic connectors. All belt
connections must be vulcanised.
Ensure that the bulk material is free of foreign substances that could create
an ignition source for the dust/air mixture.
Ensure that any necessary metal-separating devices are operating
effectively.
Install cleaners in such a way that no metal part can contact moving
components even when the blade is completely worn.
Use only tools and aids that are approved for use in the respective ATEX
zone.
Ensure that the cleaners are tensioned against the conveyor belt with the
maximum forces / tension values specified.
Ensure that the earth connections of the cleaners are installed correctly.
Use only cleaners as special product variants that are suitable for use in
potentially explosive areas.
Measure the gas and dust content of the environment before using open
flames.
Prevent electrostatic charges, for example by cleaning plastic enclosures with
a dry cloth.
Work on earth connections, cabling, switching, control, regulation, automation
and all electrical components may be carried out only by trained electricians.

11 M4033ESA-06/20
3 Preparations before installation
3.1 Required maximum of tools and materials

12 M4033ESA-06/20
3.2 Checking the operating conditions
Before installation, check whether the cleaner is suitable for the
application. For this purpose, it must be ensured that:
the available space allows unobstructed installation, maintenance and
repair of the cleaner,
the cleaner meets the requirements for the respective operation (ambient
conditions, operating mode of the conveyor, properties of the bulk
material, fire protection, explosion protection, etc.)
a plugged conveyor chute may cause additional pressure against the
cleaner and may cause damage belt. Ensure conveyor chute remains
unplugged. Use a plugged chute sensor where appropriate.
special product variants are used if the cleaners are operated in ATEX
zones 22 and 21 and all explosion-related parameters and operating
modes are observed.
Ensure the conveyor belt is free of damages. Especially belt edge
damages and protruding parts of the conveyor belt can get caught in
the cleaner and cause further damage.
3.3 Unpacking/transportation
WARNING
Heavy weight
The cleaners may have weights that require handling by lifting devices. Handling
heavy cleaners by hand can cause serious skeletal injuries.
Use suitable aids if the load is > 25 kg per person!
Identify the centre of gravity! Ensure that the cleaner cannot tilt during the
lifting process!
Inspect shipping container for damage. Report damage to delivery
service immediately and fill out delivery service’s claim form. Keep any
damaged goods subject to examination.
Remove belt cleaner assembly from shipping container.
If anything is missing contact Martin Engineering or a representative.

13 M4033ESA-06/20
3.4 Identification of the correct installation position
General Instructions
Correct Mounting Position Incorrect Mounting Position
Figure 1:Belt Cleaner Mounting Orientation
Inspect belt cleaner mounting area for possible obstructions that could interfere
with proper mounting. Refer to following guidelines:
Ensure cleaner does not lie in path of material unloading from conveyor
belt.
The top side of cleaner should be no less than the 2 o’clock position.
Material could strike the back of the cleaner causing wear which will lead
to premature failure.
The ideal installation angle is 17°–18°. Installation angles of 15°–21° are
acceptable. Higher angles are normally utilized in cleaning material that
tends to adhere to the belt, these higher angles lead to increased wear
on the blade.
NOTE
The correct installation position of the cleaner and the tensioner can be found in
chapter 11 Appendix.
Ensure that the specified installation positions are fully observed.
Ensure that maintenance of the cleaner can be carried out without problems.
Provide the required possibilities for inspection and maintenance.

14 M4033ESA-06/20
Belt width must not exceed a ratio of 3:1 to the head pulley diameter. For
example, the maximum belt width for a conveyor with a 600 mm (24 in.)
head pulley is 1.800 mm (72 in.).
Chute walls must be strong enough to not flex as tension is applied to
cleaner. If chute wall flexes inadequate tension may be applied to cleaner
resulting in poor cleaning performance. Additional chute wall structure
support may be added to prevent chute wall from flexing.
The distance between the cleaner and the chute wall should be
minimized. Martin Engineering recommends keeping the distance to
125mm (5 in.) maximum per side (see Figure 4). Excess chain or cable
could result in vibration that could damage the belt or the cleaner. If
necessary, build a sub-wall to support the tensioners in the proper
position. Consult Martin Engineering for installation assistance if
parameters fall outside of this range.
For typical installations, start with the bottom rope in the Belt-Exit-Point
which is typically in the 6 o’clock position. The exact positioning of the top
rope is a result of the installation angle, typically in the 3 o’clock position.
For belts with low product flow, lower the top rope until cleaner is out of
material path. Cleaner angle must be 15° or greater.
Lack of service can contribute to poor belt cleaning performance. Follow local
guidelines for access:
Clearance for service outside the chute must be at least equal to the belt
width.
Cleaners must have service platforms. Cleaners should be mounted at
least 600 mm (24 in.) above the work platform.
If the belt width is 1.400 mm (54 in.) or larger consider access doors on
both sides of the chute.

15 M4033ESA-06/20
Belt t P t
Tp e
Bottom
e
Tp e
Bottom
e
Pr t
isc rge Poi t
Belt t Point
Tp e
Bottom e
Tp e
Bottom e
Pr t
D
ischa
ge
P t
Typical Belt Cleaner Mounting Positions
Figure 2: Typical Belt Cleaner Mounting Positions

16 M4033ESA-06/20
Low Product Flow Belt Cleaner Mounting Positions
Figure 3: Low Product Flow Belt Cleaner Mounting Positions
Pr t
Disc rge
P t
Tp e
Belt t P t
Pr t
Disc rge
P t
Belt
p
Tp e Belt t P t

17 M4033ESA-06/20
Installations with Wide Chute Walls
Figure 4: Installations with Wide Chute Walls
NOTE
The maximum distance between chute wall and center of thimbleis 125mm(5in.).
Excessfreechainor cablecausestoo much vibration resulting in damage to cleaner
and components. If necessary, build a sub wall to support the tensioners and/or
install wide chute wall kit, see Figure15
Dual
Tensione
125 mm (5
in.)
Maximum
125 mm (5
in.)
Maximum
Single
Tensioner
125 mm (5
in.)
Maximum

18 M4033ESA-06/20
4 Before Installation Belt Cleaner
DANGER
Entanglement in conveyor belt
Clothing or body parts can become entangled in the conveyor and cause serious or
fatal injuries.
Tensions may be released in the conveyor belt and cause movement of the bulk
material without prior detection.
Do not carry out any work on the conveyor belt while it is in operation or
reach into the moving conveyor belt!
Secure the conveyor against unintentional restart! Use lockout / tagout /
blockout / testout procedures!
Install suitable guards to prevent access to the infeed section!
DANGER
Automatic start-up of the conveyor
Serious or fatal injuries due to unintentional start-up of the conveyor.
Switch off the conveyor before starting work and secure it against being
switched on again.
Follow safe procedures to prevent unintentional restart.
WARNING
Heavy weight
The cleaners may have weights that require handling by lifting devices. Handling
heavy cleaners by hand can cause serious skeletal injuries.
Use suitable aids if the load is > 25 kg per person!
Identify the centre of gravity! Ensure that the cleaner cannot tilt during the
lifting process!

19 M4033ESA-06/20
4.1 Installing chains
NOTE
The chute wall that the tensioners will be located on is referred to as the “operator
side.” The other side of the chute is referred to as the “far side.”
NOTE
Chains must be installed on the same side of chutetensioners
will be located on. Tensioners and chains can be installed on either side of cleaner
with tensioner on top as preferred location, butcleaner orientationmust beas shown
in Figure1.
Figure 5: Installing Chains and Breakaway Links
Determine operator side of chute and1. cleaner.
Install supplied chains on operator side2. of cleaner as follows:
a) Install one half of chain link (A) onto chain (B) and cable eyelet (C).
b) Install second half of chain link onto first half.
c) Place link on solid surface and peen rivets (D) to lock chain link halves
together.
d) Repeat steps a–c for second chain
Chain Link Half (2 used)
Chain
Cable Eyelet
Rivet (4 used)

20 M4033ESA-06/20
5 Installing Belt Cleaner & Tensioners
Cleaner
X
mm (in.)
Ymm (in.)
Medium
13 (0.50)
182(7.15)
Large & HD
13 (0.50)
298 (11.73)
BELT
TRAVEL
BELT
TRAVEL
77
(3,03)
60
(2,36)
B
B
X
Head Pulley
Center Line
Head Pulley
Center Line
Y
Refer to Appendix for
additional installation options
and chute wall cutout dimensions
Conveyor Center Line
17°-18°
A
A
Y
Figure 6: Belt Cleaner Location & Chute Wall Cutouts