ermengineering LRBW-150 User manual

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
____________________________________________________________________________________________________________________
www.ermengineering.com 󰞟󰞠󰞡󰞢󰞣info@ermengineering ✆([phone]
P a g . 1
(Original) Use and maintenance manual
Type: Sidewall + V-Guide welder
Model: LRBW-150
IMPORTANT:
Read this user manual and follow the instructions and warnings before operating this device.
Any modification or transformation performed on this machine may cause loss of the
manufacturer’s guarantee and liability.
This manual must always remain near to the machine and visible to all the operating and
maintenance staff, for any future consultation, forming part of the equipment.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 2
Index:
Page
-CE Declaration of conformity: ................................................................................................................................................3
-Description: ..................................................................................................................................................................................4
-Technical Characteristics: .......................................................................................................................................................4
-Standard equipment: ................................................................................................................................................................4
-Warnings and safety:.................................................................................................................................................................4
-Installation and start-up:.........................................................................................................................................................5
-Electrical Connection: ...............................................................................................................................................................7
-Operation for V-Guides: ...........................................................................................................................................................7
-Load the belt inside machine .............................................................................................................................................. 11
-Operation for sidewalls:........................................................................................................................................................ 18
-Replace the belt pins and pulleys ...................................................................................................................................... 19
-Care and maintenance ........................................................................................................................................................... 27
-Electrical drawings: ................................................................................................................................................................ 29
-Spare parts:................................................................................................................................................................................ 33

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 3
-CE Declaration of conformity:
WE DECLARE, under our responsibility, that the machine:
- Type: Sidewall and ropes welding machine
- Brand: ERM Engineering
- Model: LRBW-150
- Serial No.: xxxxxx
- Manufacturer date: 2021
Inspired by the directives of the Official Journal of the European Communities:
2006/42/CE Machinery Directive
2014/35/UE Low Voltage Directive
2014/30/UE Electromagnetic Compatibility Directive
Complies with the design and construction specifications of the European Standards on General
Machine Safety:
EN 349 –EN 614-1 –EN 614-2 –EN 12100 –EN 11161-1 - EN 1005-1 –EN 1005-2 –EN
1005-3 - EN 1005-4 –EN 13849-1 –EN 13849-2 –EN 894-3 –EN 13850 - EN 13857 –EN
61310-1 EN 60204-1 - EN 14118 - EN 14120 –EN 13732-1
General Manager: Eduardo Ramos Martínez
Arenys de Munt (Barcelona)-SPAIN
Date: 2021/08

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 4
-Description:
Continuous longitudinal profile and sidewall welder for conveyor belts using a jet of hot air at
the point of intersection of the two materials. Fitted with speed, temperature and pressure
controls for different types of material.
-Technical Characteristics:
Dimensions 2740x1200x1670 mm (LxWxH)
Weight 738 kg
Max. Belt Width 1500 mm
Min. continuous operation 850 mm
Pulley diameter 100 mm
Max. Belt Thickness 8 mm
Motor 0.25 kW
Leister Welder 1600 X 2 and 3400W X2
-Standard equipment:
•One motor frame
•Two welding ropes heads
•Two welding sidewall units
•Four chains with pins 2x25 and 2x70
•Pulleys 10x6 / 13x8 / 17x11 (two sets)
-Warnings and safety:
−ERM Engineering recommends the users of this machine to fully read this user’s manual
prior to its use to guarantee safe work.
−It also advises and recommends equipment not being used by unqualified staff who have
not received prior training from ERM Engineering
−A copy of this manual delivered along with the machine must always remain at hand during
its use, both for the production operators as well as the maintenance managers.
NOTE: ERM Engineering shall not be held liable under any case for damage caused by
undue or improper use of this equipment.
−Any repairs or modification of the machine performed by personnel not qualified by ERM
Engineering or use of non-original spare parts provided by persons unrelated to the
company, shall give rise to loss of the manufacturer’s guarantee.
−During use of the machinery and industrial use, people are subject to the risk of damage or
injury by mechanical elements in linear or gyrating movement, high voltage electric
components and static components under high temperature, due to which, during design

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 5
and construction of its equipment, ERM Engineering. has aimed to reduce and minimise
those risks by including protection devices and safety systems based on the European
Community Council Directives.
−Pay special attention to the following danger, prohibition and obligation signs located at
different places on the machinery:
-Installation and start-up:
Site the machine in well ventilated places or under a fume exhaust hood.
IMPORTANT: Fix the frame on the floor with 6 steel bolts 14/15mm.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 6
THE FUMES PRODUCED WHEN WELDING SOME MATERIALS ARE TOXIC AND MAY
CAUSE IRRITATION OF THE RESPIRATORY TRACT.
Place the welder in such a way to simplify placement and removal of continuous belts on the
open side of the machine frame.
Allow sufficient free space for movement of material.
Fix the tension rails on floor, always centred with motor drum. Always 1000mm between centre
of rails.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 7
-Electrical Connection:
Connect the machine to a suitable single-phase 1 X 230 V power supply bearing in mind the
power consumption 7000 W.
It must also be connected to a compressed air supply through the input tube 10mm internal
diameter to input between 5 and 8 bar.
-Operation for V-Guides:
To use the machine for V-guides, is necessary to remove the sidewall heads and assemble the V-
guides unit.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 8
To disassemble the sidewall heads;
✓Relax the sidewall belts turning the handler 90º to take out the cardan shaft.
Pull the cardan transmission out the pulleys.
Disconnect the pulley motor socket and encoder cable.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 9
Loosen the feet handlers to remove the sidewall brackets lifting them from the base and pulling
them out:
Lift the arm 20/30mm and remove.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 10
After removing these two units, assemble the V-guide unit, as seen here fixing two knobs in both
sides:
Next:
1. Connect the air supply: 2. Both Leister unit cable in down socket:

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 11
Select and change, if necessary, the pulley corresponding to the profile to be processed by the
machine:
-Load the belt inside machine
Before load the belt it is important to separate the measuring wheel to avoid breakage of the
system:
Open the bracket of drum to introduce the corresponding bushings and endless belt.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 12
Close the bracket again and fix with knob to close the frame using plate to prevent any
movement or deformation caused by the pressure of pulleys or belt tension.
No tension the belt without bracket complete closed.
No open this bracket with belt tensioned.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 13
Place the belt on the welding table and centre the side guides so that the belt advances evenly
and without any side travel. It is also possible to move the welding carriage by loosening the
holding bolt:
Once the belt is placed in position, tension the belt using the winch.
Now we can attach the measuring wheel:

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 14
We recommend starting the motor at maximum speed to centre the belt during tension
operation to facilitate positioning.
To start the motor:
Turn on the electrical box rotating the red switch and pressing the blue button to RESET.
After turning on the electrical box, press START button and adjust the speed with potentiometer
For V-guides, sidewall switch OFF in left position and FORW/REV in right position.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 15
Start the Leister welder by pressing the black button located on the rear and adjust the
temperature using the knob of Leister depending on the type of weld to be performed:
NOTE: For perfect welding, the welder should be pre-heated for about 3 minutes before
starting to work.
Introduce one end of the profile into the rear of the machine until completing one turn of the
welding pulley as shown in the photo:

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 16
Lower the pulleys using the drive system located on the front of the welding carriage so that they
press the belt and are driven by the motor roller.
After the welder has been pre-heated, begin welding by turning Leister to start while at the same
time pressing the green button on the control panel to start the motor.
During the welding process it is always possible to change any of the three settings: temperature,
belt speed and pulleys pressure.
Also, you can adjust the distance or hight of nozzle.
Change the position of the welder by first loosening the screws and then tightening them again
once it is adjusted:
All these settings have a direct effect on the quality of the weld so a test should be performed
before welding the belt just to make sure all the settings are correct.
The position, angle and proximity of the welder is also very important for the temperature
setting. Increasing the distance or angle in relation to the profile reduces the effectiveness of the
bond between the materials.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 17
Note that any changes made to the temperature will not become effective until a few minutes
have elapsed. Adjusting the welding rate using the control potentiometer BELT SPEED has
immediate results.
Adjust the pressure by moving the pressure control knob located on the piston of the welding
pulley this adjustment only becomes effective on operating the pulley drive system, even though
it only affects the welding pulley.
NOTE: Check the weld by attempting to pull the welder joint apart. It should not come
apart cleanly, that is, without tearing.
If this test is to be performed on a profile welded to fabric, wait at least 12 hours to allow
the components of the size to set before performing the test.
Normally the sizes used for welding on fabric are two-component and require some hours
to fully set.
In the case of welding continuous belts, make a cut at the beginning of the weld at an angle of
about 45º:
Continue welding to this point and the stop the forward drive motor while at the same time
pressing the control to withdraw the Leister:

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 18
After overlapping the weld and once the profile has cooled, cut it and form the excess to match
the original shape.
Shut the welder down by adjusting the temperature of the Leister to 0 and allowing it to operate
for about 5 minutes to cool the heater element.
NOTE: Not completing this cooling process, that is turning off the blower when the heater
element is still hot, could cause the heater element to fuse because of the increased
temperature inside the tube.
-Operation for sidewalls:
Remove the ropes welder device, to remove this one, disconnect the air tube and lose the two
handles in both sides:
Disconnect the electrical cable of Leister and air tube, get up the aluminium profile to take away
this rope’s device.
After this preparation, assemble the sidewall heads on the support plates and fix the handles:

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 19
Choose the set of chain with correct height.
The machine was delivered with two sets of pins belts and two sets of pulleys (PVC and PU):
The low pins for side wall 35-40-50-60mm / The high pins for sidewall 80-100mm.
-Replace the belt pins and pulleys
To replace the belt pins, first pull the encoder bracket and fix with the bolt to separate of belt.

Use and maintenance manual
Sidewall and ropes welding machine
Model: LRBW-150
_______________________________________________________________________________________________________________________
P a g . 20
After this, untense the belt rotating the handler 90º to up.
Take out the motor shaft with belt relaxed.
Them remove the belt.