Martin DT2H User manual

Installation Manual
M3699UK
MARTIN® DT2H -
Main Scraper

© Martin Engineering GmbH M3699UK-11/13

© Martin Engineering GmbH 1 M3699UK-11/13
Contents
I Contents
I Contents ............................................................................ 1
1 Introduction ...................................................................... 3
1.1 About this Installation Manual ............................................ 3
1.1.1 Scope ............................................................................ 3
1.1.2 Copyright ....................................................................... 3
1.1.3 Disclaimer ...................................................................... 3
1.1.4 Reference to additional documentation ......................... 4
1.1.5 Classification of hazards................................................ 5
1.2 Appropriate Use ................................................................. 6
1.2.1 Conveyor belt systems with open transfer systems ...... 6
1.2.2 Use in EX-protection areas ............................................ 6
1.2.3 Operating limits of this product ...................................... 6
1.3 Safety at work .................................................................... 7
1.3.1 Safety instructions, safety at work ................................. 7
1.3.2 Obligations of the operator ............................................ 7
1.3.3 Authorised personnel ..................................................... 7
2 Description of the product .............................................. 9
2.1 Contruction and Function ................................................... 9
2.2 Spring tensioners ............................................................. 10
2.3 Type explanation.............................................................. 10
3 Installation preparation ................................................... 3
3.1 Before installation............................................................... 3
3.1.1 Materials and tools required .......................................... 3
3.1.2 Preparatory measures ................................................... 3
4 Installation ........................................................................ 5
4.1 Safety instructions.............................................................. 5
4.2 Installation of the MARTIN® D2H main scraper................. 6
4.2.1 Determining the installation position .............................. 6
4.2.2 Installation of the spring tensioner................................. 8
4.2.3 Installing the scraper ..................................................... 9
4.2.4 Centre the scraper shaft below the conveyor belt ....... 12
4.2.5 Adjust the blade shaft parallel to the conveyor belt ..... 13
4.2.6 Levelling the blade shaft .............................................. 13
4.2.7 Tensioning the blade ................................................... 15
4.3 Test run ............................................................................ 19
4.4 Installations - Check-list ................................................... 21
4.5 Placing the warning label or the warning pendant ........... 22
5 Maintenance ................................................................... 23
5.1 Safety instructions............................................................ 23
5.2 Weekly maintenance........................................................ 23
5.3 Replacing the scraper blades........................................... 26
6 Troubleshooting ............................................................. 29
6.1 Safety instructions............................................................ 29
6.2 Troubleshooting .............................................................. 29
7 Storage, De-installation, Disposal ................................ 31
7.1 Storage............................................................................. 31

© Martin Engineering GmbH 2 M3699UK-11/13
Contents
7.2 De-installation ................................................................... 31
7.3 Disposal ............................................................................ 31
8 Part numbers ...................................................................33
8.1 MARTIN®DT2H main scraper .......................................... 33
8.2 MARTIN® DT2H tensioners.............................................. 33
8.3 MARTIN® DT2H main scraper blade cartridge................. 33
8.4 MARTIN®Inspection Doors .............................................. 34
8.5 Installation manual............................................................ 34
8.6 Miscellaneous ................................................................... 34
8.7 Warning label / Warning tag.............................................. 34
8.8 MARTIN®DT2H main scraper .......................................... 35
8.9 MARTIN®IN-LINE spring tensioner.................................. 39
8.10 MARTIN®IN-LINE air tensioner........................................ 41
8.11 DURT TRACKER®Scraper blades.................................. 42
8.12 Part number - description.................................................. 43
9 Declaration of Incorporation ..........................................45
10 Notice ...............................................................................47

© Martin Engineering GmbH 3 M3699UK-11/13
Introduction
1 Introduction
1.1 About this Installation Manual
Non-compliance with this installation manual can lead to the loss of
any liability claim and/or guarantee.
1.1.1 Scope
This installation manual is exclusively for the product that is de-
scribed herein, and is aimed at those people, that install the product,
take the product into operation, and monitor its use.
1.1.2 Copyright
The product described and this installation manual are protected by
copyright. Copying without a license will be legally prosecuted. All
rights to this document are reserved, including the reproduction and/
or distribution in any thinkable way or form. The reprinting of this
document is only allowed with written permission from Martin Engi-
neering.
The technical standard at the time of delivery of the product and
technical documentation is decisive, as long as no other information
is given. We reserved the right to make technical changes without
any announcement. Earlier documents will no longer be valid. Martin
Engineering General Conditions of Sale and Delivery apply.
1.1.3 Disclaimer
Martin Engineering guarantees the faultless operation of the product
according to the advertising, edited product information, and techni-
cal documentation. Martin Engineering does not accept any liability
for the efficiency and proper operation, if this product is used for any
other purpose, other than as described in the section "Appropriate
Use"; or for any damage caused by the use of accessories and/or
spare parts, that were not delivered and/or certified by Martin Engi-
neering.
The products from Martin Engineering are designed for a long ser-
vice life. They correspond to state-of-the-art scientific and technolo-
gy standards and were thoroughly inspected before delivery.
Additionally, Martin Engineering carries out continuous product and
market research for the further development of products.
In the event of faults and/or technical problems Martin Engineering
offers professional support. Appropriate steps will be taken immedi-
ately. Martin Engineering's warranty conditions apply, which can be
sent if required.

© Martin Engineering GmbH 4 M3699UK-11/13
Introduction
1.1.4 Reference to additional documentation
The following documents are referred to in this installation manual:
•MARTIN
®Inspection door M3127
The following standards and guidelines were applied when compos-
ing this installation manual:
• EU Machinery Directive (2006 / 42 / EG)
• ISO/IEC Guide 37 "Installation instructions for end-
consumer used products“, edition 1995
• DIN 1421 "Structure and numbering in texts", edition 1983-
01
• DIN/EN 12100-1 "Safety of machinery - Basic concepts,
general principles of design", edition 2013-08
• DIN/ISO 16016 "Technical product documentation -
Protection notices for restricting the use of documents and
products", edition 2007-12
• DIN/EN 60204-1 "Safety of machinery - Electrical
equipment of machines, Part 1, General requirements",
edition 2007-06
• DIN EN 82079-1 Preparation of instructions for use -
Structuring, content and presentation - Part 1: General
principles and detailed requirements.

© Martin Engineering GmbH 5 M3699UK-11/13
Introduction
1.1.5 Classification of hazards
DANGER!
This indicates an imminent danger that leads to serious physical
injuries or death, if not avoided.
WARNING!
This indicates a potentially dangerous situation that could lead to
serious physical injuries or death, if not avoided.
CAUTION!
This indicates a potentially dangerous situation that could lead to
minor physical injuries and/or damage to property, if not avoided.
NOTE
Contains information to the installation or use of the product and
points to situations, that cause neither injuries nor property dam-
age, but is nevertheless important information.

© Martin Engineering GmbH 6 M3699UK-11/13
Introduction
1.2 Appropriate Use
The Martin®DT2H main scraper can be used only for cleaning a
conveyor belt in the lower section of a conveyor belt system. In do-
ing so, the scraper must be installed immediately behind a head
drum or counter pressure roller.
It can be used in conveyor belts having a maximum belt width of
3,000 mm and maximum conveyor speed of 6.1 m/sec.
Any other use of this product is deemed to be inappropriate. If you
would like to use the product described here for any other purpose,
please contact customer service at Martin Engineering. We shall be
pleased to assist you with the product configuration.
1.2.1 Conveyor belt systems with open transfer systems
This installation manual describes the installation on a conveyor belt
system with an encapsulated delivery system. For the installation on
open delivery systems different MARTIN®installation consoles can
be used.
If installation conditions prove to be difficult, as is the case with im-
passable static components, or using the head drum as the tension
point, Martin Engineering or a representative can help with the posi-
tioning or find customized solutions.
1.2.2 Use in EX-protection areas
Under certain circumstances the product described here can also be
used in potentially explosive areas. Contact Martin Engineering for
more information on use in potentially explosive areas.
The use of the scraper in a device protection category that is higher
than that specified or under operating conditions other than those
specified by Martin Engineering is not permissible or may be done
only if Martin Engineering has granted its approval.
1.2.3 Operating limits of this product
The use of the product mentioned here is allowed only within the
specifications given above. Using it in a higher than specified equip-
ment category or under operating conditions other than those
named and previously specified by Martin Engineering is considered
to be inappropriate use and can only be carried out if approved by
Martin Engineering.
If the MARTIN®D2H main scraper needs to be used for a different
purpose, then Martin Engineering or one of its representatives can
help with the product configuration.

© Martin Engineering GmbH 7 M3699UK-11/13
Introduction
1.3 Safety at work
1.3.1 Safety instructions, safety at work
This installation manual should be read through completely before
beginning work on the product or the customer's conveyor belt sys-
tem.
The operator must ensure that all installation, inspection or mainte-
nance work is carried out only by authorised experts.
Basically, all work on conveyor belt systems and their accessories
has to be done when the system is at a standstill. The instructions in
the relevant installation manual, which describes how to shut-down
the conveyor belt, must be adhered to.
Upon completion of work, all safety equipment and protective
guards should be reinstalled and put back into operation.
Before commissioning, the installation should be completed. Before
the conveyor belt system can be used again, the flawless execution
of all steps should be checked. All notes on installation and commis-
sioning of the product should be observed.
1.3.2 Obligations of the operator
The operator of this product must ensure that only those personnel
install, service and use this product who
• know the rules for safety and accident prevention,
• have been instructed in this product’s use, and have read
and understood this installation manual.
1.3.3 Authorised personnel
Personnel are considered to be authorised, if they have appropriate
education, technical experience as well as knowledge on the rele-
vant standards and guidelines and are also in a position to assess
any tasks to identify critical situations at an early stage.
Operating or maintenance and installation personnel
Personnel are considered to be authorised, if they have been in-
structed in the use of the product and have read the installation man-
ual completely and understood it.

© Martin Engineering GmbH 8 M3699UK-11/13
Introduction

© Martin Engineering GmbH 9 M3699UK-11/13
Description of the product
2 Description of the product
2.1 Contruction and Function
The MARTIN®DT2H main scraper, with its unique push-in and free-
ly selectable scraper blades offer a large variation of options for use
such as reversing operation, mechanical splinters, etc. Replacing
the scraper blade is easy thanks to the pull-out type of blade holder.
The MARTIN®DT2H main scraper is best suited for removing impu-
rities or dirt from a conveyor belt based on its positioning behind the
head drum or a counter pressure roller. Optimal results are achieved
if it is operated together with a pre-head cleaner, but it can also be
used as a separate scraper.
Martin Engineering recommends not to use this scraper if the con-
veyor belt has boreholes, openings or other signs of damage.
When using it in conjunction with mechanical splinters, attention
needs to be paid to ensuring that this is in proper condition and has
no projecting parts.
NOTE
A poorly or incorrectly installed product can hamper the convey-
ance process or soil the bulk material to be conveyed.
The operator is responsible for adopting the countermeasures
necessary.
When used with impurities or contaminants, Martin Engineering or
a representative can help with the positioning or with customised
solutions.

© Martin Engineering GmbH 10 M3699UK-11/13
Description of the product
2.2 Spring tensioners
The MARTIN®DT2H main scraper and the Martin Engineering
spring tensioners specifically developed for it give the best results
and conform to the general state-of-the-art technology.
Martin Engineering recommends the following spring tensioners for
the MARTIN®DT2H main scraper:
•MARTIN
®IN-LINE reversible spring tensioner, part no.
37806
•MARTIN
®IN-LINE air tensioner,
part no. 37806-A
2.3 Type explanation
For the Martin®DT2H main scraper, scraper blades are available in
different material designs. The required design can be selected to
match the respective material conditions. The choice of different
scraper blades is listed in the section on "Part numbers".

© Martin Engineering GmbH 3 M3699UK-11/13
Installation preparation
3 Installation preparation
3.1 Before installation
3.1.1 Materials and tools required
In addition to the standard tools, the following special instruments
may be needed for installation and maintenance.
• Lifting equipment with a capacity greater than the weight of
the main scraper (note the weight on the delivery note).
3.1.2 Preparatory measures
1. At the time of delivery, check the following points:
• Is the delivery complete? Is the number of pallets / cases /
containers the same as the number on the delivery note?
• Does all the transport packaging appear to be undamaged?
Is there damage which may indicate that the contained
products may be damaged?
2. If the delivery is incomplete or if there is transit damage, make
sure to record this and have it confirmed by the freight forwar-
der. All damaged products should be saved for inspection.
3. Depending on the scope of the order, the delivery should con-
tain the following parts:
•MARTIN® DT2H main scraper with tensioner (spring or air
tensioner).
• Installation manual.
• Two warning labels for conveyor belt products,
part no. 23395G
• Two warning labels for crushing hazard, part no.: 30528G
• Two warning labels for reversible tensioner,
Part no. 37827
4. Missing or damaged parts should be reported to Martin Engi-
neering or the authorized dealer.
NOTE
Pay attention to the following checks and carry them out comple-
tely.
The freight forwarder is responsible for any transport damage!
For any damage claims, please contact the freight forwarder.

© Martin Engineering GmbH 4 M3699UK-11/13
Installation preparation

© Martin Engineering GmbH 5 M3699UK-11/13
Installation
4 Installation
4.1 Safety instructions
NOTE
Read this section completely before beginning any work!
WARNING! DANGER OF INJURY!
Body parts and/or clothing may get caught and pulled in by rotat-
ing parts or by the moving conveyor belt.
Before any installation or maintenance work is carried out, ensure
that all power sources to the conveyor belt system and its accesso-
ries are switched off and secured against inadvertent reactivation.
Use warning signs!
WARNING! EXPLOSION HAZARD!
In enclosed areas there is an increased risk of explosion when
using a cutting torch or welding equipment!
Before use, check the level of gas and dust in the air.
NOTE
Install the spring tensioner on the side that is most easily accessi-
ble. The side that is most easily accessible is called the "operator
side" in this manual, while the other side is called the "opposite
side".

© Martin Engineering GmbH 6 M3699UK-11/13
Installation
4.2 Installation of the MARTIN® D2H main scraper
4.2.1 Determining the installation position
The position of the middle axis of the conveyor belt scraper must be
determined on both sides of the chute wall. In the process, the posi-
tions are determined where the shaft of the conveyor belt scraper
passes through the chute wall or where the spring tensioner is in-
stalled on the chute wall.
The conveyor belt scraper is supplied along with a spring tensioner.
This is disassembled at the factory prior to delivery and is reassem-
bled during installation along with the conveyor belt scraper.
The installation of the conveyor belt scraper and the spring tensioner
is described in this installation manual.
Following is an overview of the installation steps:
It is possible to have different local conditions at the time of installa-
tion that require different working steps, which are illustrated below:
Installation on an encapsulated delivery system
• Carry out the instructions according to 4.2.2.
Installation on an encapsulated delivery system where installation
openings and supports for the conveyor belt scraper are already
present.
• Carry out the instructions in 4.2.3.
Installation on an open delivery system
Use the local resources to ensure that the dimensions for the instal-
lation are correctly maintained.
1. Prior to commencing installation of the conveyor belt system,
switch off and de-energise the conveyor belt and all accesso-
ries and secure them against being switched on inadvertently.
The conveyor belt scraper should ideally be installed near a
head drum or counter pressure roller. The distance should not
be more than 100 mm.
2. Determine the midpoint position of the scraper axis as de-
scribed below for the conveyor belt scraper.
No. Installation step Instruction
1 Determining the installation position M3699
2 Installation of the spring tensioner M3699
3 Installation of the conveyor belt scraper M3699
4 Tensioning the conveyor belt scraper M3699
Tab. 1: Installation steps

© Martin Engineering GmbH 7 M3699UK-11/13
Installation
3. Mark the vertical and horizontal centre line of the driving drum
on the operator side of the chute wall to determine the midpoint
(A) of the driving drum. The vertical line must run at right angles
to the conveyor line.
4. Mark one position at a distance of 51 to 102 mm in the direction
of conveyance starting from the point at which the conveyor belt
leaves the head drum (B).
5. At this position (C) mark one vertical line at a right angle to the
conveyor belt.
6. Take the dimension from Fig. 1 and mark the installation holes
in the spring tensioner.
NOTE
For installation behind a thrust roller in the direction of convey-
ance, draw one line vertically to the conveyor belt level at a dis-
tance of 51 mm from the midpoint of the roller.
Abb. 1: Creating the installation openings in the chute
NOTE
Martin Engineering recommends for improved maintenance and
repair access the installation of a MARTIN® inspection door.
438
Air tensioner
Blade tip
(4x Ø14)
Conveyor belt line
215
152
203
165
82
400
Spring tensioner
Blade tip
(4x Ø14)
Conveyor belt lin
215
152
165
165
76
(2 x R6) (2 x R6)
A
A
BB
CC

© Martin Engineering GmbH 8 M3699UK-11/13
Installation
4.2.2 Installation of the spring tensioner
.
1. Prepare the installation openings for the scraper axis and pre-
pare installation openings for the tensioner according to Fig. 1.
Deburr all openings and boreholes.
2. Place the installation console with the safety bolts (Fig. 2) on
the operator side of the chute wall and fix it to the chute with
screws.
3. Repeat the steps 3 and 4 for installing the installation console
on the opposite side. Use the installation console with the shaft-
arresting mechanism (Fig. 4 on page 16)
NOTE
The dimensions of the installation openings for the spring and air
tensioners are different. Ensure that the correct dimensions are
used. Check the position of the conveyor belt scraper before con-
tinuing.
Abb. 2: Installing the installation console with safety bolts

© Martin Engineering GmbH 9 M3699UK-11/13
Installation
4.2.3 Installing the scraper
4. Insert the cleaner shaft into the installation console. To do this,
slide the shaft through the installation console and the opening
in the chute wall from the operator side.
5. Next, push the scraper shaft out through the shaft arresting
mechanism of the installation console on the opposite side.
Abb. 3: Sliding in the scraper axis
NOTE
The side of the shaft with the openings must be installed on the
installation console on the operator side. The shaft must be
installed in such a manner that the opening right at the end of the
shaft points to the installation console.
Abb. 4: Arresting the scraper shaft (1)

© Martin Engineering GmbH 10 M3699UK-11/13
Installation
6. Tighten the 3 adjustment screws on the back side slightly so
that the scraper shaft does not slip out while installing the
scraper blade holder.
7. Align the end of the scraper with the outer edge of the installa-
tion console on the operator side
.
Abb. 5: Arresting the scraper shaft (2)
NOTE
If the scraper shaft is too long, this can be shortened accordingly
on the opposite end.