RED BAND MB Series User manual

OPERATOR’S SAFETY
AND SERVICE MANUAL
Red Band MB
Masonry Bridge Saw
RED BAND UK LTD Tel: [phone]
Unit 70 • The Warren Fax: [phone]
East Goscote Ind. Est. [email protected]
East Goscote • Leicester www.redbanduk.co.uk
LE7 3XA

Basic Safety Instructions
The Red Band MB range of Masonry Bridge Saws is exclusively designed for the cutting of
construction products mainly on construction sites.
Uses other than the manufacturer's instructions shall be considered as contravening the
regulations. The manufacturer shall not be held responsible for any resulting damage. Any risk shall
be borne entirely by the user. Observing the operating instructions and compliance with inspection
and servicing requirements shall also be considered as included under use in accordance with the
regulations.
Symbols
Important warnings and pieces of advice are indicated on the machine using symbols. The following
symbols are used on the machine:
Machine plate
Important data can be found on the following plate located on the machine:

Before commencing work
Before commencing work, make yourself familiar with the working environment at the place of
use. The working environment includes: obstacles in the area of work and manoeuvre, the
firmness of the floor, necessary protection at the site relating to public thoroughfares and the
availability of help in the event of accidents.
Site the machine on an even, firm and stable base!
Check for correct mounting of the blade regularly.
Immediately remove damaged or badly worn blades, as they endanger the operator whilst
rotating.
The material to be cut must be held securely in place on the table to allow no movement during
cutting operation.
Always cut with the blade guard in position and closed.
Only fit suitable diamond blades to the machine! The use of other tools can damage the
machine!
Read the blades’ specifications carefully to choose the correct tool for your application.
Attention is drawn to the use of BS2092 safety goggles in conformity with specified Processes
No.8 of the Protection of Eyes Regulation 1974, Regulation 2(2) Part 1.
Electrical powered machine
Always turn off the machine and separate it from the main source of electricity before any work
on the machine is done.
Make all electrical connections securely to eliminate contact of live wires with spray water or
dampness.
When the machine is used with water, it is IMPERATIVE that you earth the machine properly.
Let a qualified electrician check in case of doubt.
In the event of the machine breaking down or stopping for no apparent reason, switch off the
main electricity supply. Only a qualified electrician is allowed to investigate the trouble and
remedy the fault.
In case of emergency, you can stop the machine by pushing on the front cover of the switch.

Machine description
Any modification, which could lead to a change in the original characteristics of the machine, may
be done only by Red Band UK Ltd who shall confirm that the machine is still in conformity with the
safety regulations.
Short description
The MB Bridge Saw is designed for durability and high performance for onsite wet and dry cutting
operations of a wide range of masonry, refractory and natural stone products.
As with all other Red Band products, the operator will immediately appreciate the attention given to
detail and quality of materials used in construction. The machine and its component parts are
assembled to high standards assuring long life and minimum maintenance.
Purpose of use
The machine is designed for cutting a large range of building and refractory materials like tiles, stair
step or window sill. It is not designed for cutting wood or metals.

Technical Data
MB65
MB100
MB120
MB150
Blade Diameter
350 mm
350 mm
350 mm
350 mm
Bore
25.4mm / 1”
25.4mm / 1”
25.4mm / 1”
25.4mm / 1”
Max. Cutting
Depth (90°)
110 mm
110 mm
110 mm
110 mm
Max Cutting
Depth (45°)
45 mm
45 mm
45 mm
45 mm
Rotation Speed
2800 min-1
2800 min-1
2800 min-1
2800 min-1
Cutting Length
650 mm
1000 mm
1200 mm
1500 mm
Max. Height of
Material
130 mm
130 mm
130 mm
130 mm
Length
1060 mm
1420 mm
1520 mm
1820 mm
Height (with
feet)
1350 mm
1350 mm
1350 mm
1350 mm
Height (without
feet)
780 mm
780 mm
780 mm
780 mm
Weight
(without blade)
90 KG
105 KG
115 KG
130 KG
Sound
Pressure Level
74 dB
74 dB
74 dB
74 dB
Sound Energy
Level
89dB
89dB
89dB
89dB
Vibration
<2.5m/s2
<2.5m/s2
<2.5m/s2
<2.5m/s2

Assembly and Commissioning
The machine is delivered fully equipped (although without diamond blade) and is ready for
operation after assembly of the blade and the legs, to assemble the legs, they have to be placed at
the four corners of the water tray in the brackets and fixed with two bolts and nuts each. Finally
connect to the appropriate power supply.
Tool assembly
Only diamond blades with a maximum diameter of 350 mm can be used with the MB Bridge Saw.
All tools used must be selected with regard to their maximum permitted cutting speed for the
machine’s maximum permitted rotation speed.
Before mounting a new blade into the machine, switch off the machine and isolate it from the main
source of electricity.
To mount a new blade, follow these steps:
Open the outside cover of blade guard by loosening the three locking screws on the side of the
guard.
Loosen the hexagonal nut (Caution: left-threaded) on the blade shaft, which holds the
removable outer flange.
Remove the outer flange.
Clean the flanges and blade shaft and inspect for wear.
Mount the blade on arbor ensuring that direction of rotation is correct. Wrong direction of
rotation blunts the blade quickly.
Replace outer blade flange.
Tighten hexagonal nut with spanner supplied for this purpose.
Replace blade guard cover and tighten the three locking screws.
The blade bore must correspond exactly to the diameter of the blade shaft. Cracked or damaged
bore is dangerous for the operator and for the machine.

Electrical Connections
Check that,
the voltage/phase supply corresponds to the information indicated on the motor plate.
Available power supply must have ground connection in conformity with safety regulations.
The connecting cables should have at least a 2.5mm2-section per phase.
Starting and Stopping the machine
110V or 220V Motor
Press the green button to start the machine. To stop press the red button.
400V Motor
Press the green button to start the machine. To stop press the red button.
The direction of rotation is indicated on the blade guard. If the direction of rotation does not
correspond to the direction shown by the arrow, then reverse the motor polarity by turning the
phase inverter inside the male plug.
Water cooling system
Fill the water pan with clean water to approximately 2cm from top (ensure that bottom of pump is
fully immersed in water). Use the pump switch so you can use the pump.
Open water-tap at blade guard (note that handle on water-tap should be in line with water-flow).
Ensure that water is flowing freely in the circuit and is delivered adequately to both sides of the
blade, as insufficient water supply may result in premature failure of the diamond blade.
The water pump must never run without water. Always make sure that there is enough water in the
pan and refill if necessary.
In case of frost, empty the water cooling system from its water.

Transport & Storage
Securing for transport
Before transporting or lifting the machine, always remove the blade and empty the water pan. Also
lock the cutting head on the axles.
Long period of inactivity
If the machine is not going to be used for a long period, please take the following measures:
Completely clean the machine
Empty the water system
Take the water pump out of the slurry and clean it thoroughly.
The storage site must be clean, dry and at a constant temperature.

Operating the Machine
Site of work
Siting the machine
Remove from the site anything, which might hinder the working procedure!
Make sure the site is sufficiently well lit!
Observe manufacturer's conditions for connecting to power supplies!
Place electric cables in such a way that damage by the device is excluded!
Make sure you have a continual adequate view of the working area so you can intervene in the
working process at any time!
Keep other staff out of the area, so you can work securely.
Space required for operation and maintenance
Leave 2 m around the machine for usage and maintenance of the CST.
Cutting material
To use the machine correctly, you must face it with one hand on the handle of the cutting head, and
the other ready to shut the machine down in case of emergency. Always keep your hands away
from the moving blade.
Lower the cutting head to the desired cutting depth (in “through cutting”, lower cutting head until
blade periphery reaches max. 3mm under the surface of the conveyor cart) by means of the
handle over the cutting head
Fix position by tightening the clamping device over the blade guard
Put material on the table
Push the cutting head slowly and without undue pressure towards the material and cut the
material as shown on the picture.
You can also cut thicker material by reversing the material on the table.
NOTE: While recommended, it is not absolutely necessary to lock the cutting head into a given
depth position when jam cutting. The desired cutting depth can be maintained by holding firmly the
depth feed handle on the blade guard. If the full depth of cut requires excessive pressure (on very
dense material e.g.) make 2 or 3 shallow cuts.

General advice for the cutting
Before commencing work make sure tools are firmly seated!
Select the right tools as recommended by the manufacturer depending on the material to be
worked, the working procedure (dry or wet cut) to be carried out and the required efficiency.
Apply cooling water continuously whilst cutting and in good time! Make sure the water pan
contains enough water.
When dry cutting, ensure sufficient dust extraction and wear a dusk protection mask!
When cutting work is finished, switch the water pump off so you can remove the cut pieces from
the conveyor cart without getting wet.
If the thermal protection trips, allow the thermal protection to cool down. Wait a few minutes to
allow the motor to cool down before restarting the machine.

Maintenance and Servicing
To ensure a long-term quality from the cutting with the MB, please follow the maintenance plan
below:
Begin of the day
During the changing of tool
End of the day or more often if required
Every week
After a fault
After a damage
Whole machine
Visual control (general aspect,
watertightness)
Clean
Flange and blade fixing devices
Clean
Motor cooling fans
Clean
Water pump
Clean
Water pan
Clean
Cutting table
Clean
Water hoses and nozzles
Clean
Water pump filter
Clean
Cart guiding bars
Clean
Motor housing
Clean
Reachable nuts and screws
Tighten up
Maintenance of the motor
Always perform the maintenance of the motor with the machine isolated from the electrical supply.
Cleaning of the machine
Your machine will last longer if you clean it thoroughly after each day of work, especially water
pump, water pan, cutting head axles, motor and blade flange.
Never use acid-based cleaning products, as the aluminium parts (water tray, axles, motor housing,
frame) can be corroded by these cleaning products. Always clean the machine when any cutting
dust and debris is still fresh, never allow the deposits to solidify.
Lubrication
The MB uses life-lubricated bearings. Therefore, you don’t need to lubricate the machine at all.

Faults: Causes and Cures
Fault-finding procedures
Should any fault occur during the use of the machine, turn it off, and isolate it from the electrical
supply. Any works dealing with the electrical system or supply of the machine can only be carried
out by a qualified electrician.
Trouble-shooting guide
Trouble
Possible source
Resolution
Motor is not running
No electricity
Check the electrical supply
(fuse for example)
Connection cable section too
small
Change connection cable
Defective connection cable
Change connection cable
Defective switch
CAUTION : can only be solved
by qualified electrician
Defective motor
Change motor or contact motor
manufacturer
Motor stops during the cutting,
but can be restarted after a
short period (overload
protection)
Cutting advance too quick
Cut slowly
Blade is blunt or glazed
Sharpen the blade in
calcareous stone
Defective blade
Change blade
Wrong blade specification for
the application
Change blade
No water on the blade
Water pump switched off
Switch on the water pump
Not enough water in the pan
Refill the water pan
Water tap is closed
Open tap on blade guard
Water supply system is blocked
up
Clean water supply system
Water pump is not working
Change the pump

Spare Parts
When ordering spare parts, please mention:
The code of the part.
The exact denomination.
The number of parts required.
The delivery address.
Clear instructions will avoid problems and faulty deliveries.
If not sure, please send us the defective part.
In the case of a warranty claim, the part must always be returned for evaluation.
Spare parts for the motor can be ordered with the manufacturer of the motor or with their dealer,
which is often quicker and cheaper.

Pos
Code
Description
1
GM01
STARTER ASSY - 110V
GM01A
STARTER ASSY - 220V
GM01B
STARTER ASSY - 415V
2
GM02
HANDLE
3
GM03
STARTER PLATE
4
GM04
HANDWHEEL
5
GM05
BEARING
6
GM06
FEED SCREW
7
GM07
MOTOR CONSOLE
8
GM08
MOTOR - 110V
GM08A
MOTOR - 220V
GM08B
MOTOR - 415V
9
GM09
INNER COLLAR
10
GM10
OUTER COLLAR
11
GM11
BLADE SHAFT NUT
12
GM12
WATER HOSE
13
GM13
LINEAR BEARING
GM13A
SEAL
14
GM14
HEAD CONSOLE
15
GM15
FRAME
16
GM16
BEAM
17
GM17
STOP RING
18
GM18
BEAM HOLDER
19
GM19
BRACKET - L/H

GM19A
BRACKET - R/H
20
GM20
ANGLE ADJUSTER
21
GM21
LOCKING HANDLE
22
GM22
PIVOT AXLE
23
GM23
WATER PUMP - 110 or 220V
24
GM24
LOCKING SCREW
25
GM25
LEG
26
GM26
HANDLE
27
GM27
CAPACITOR - 110V
28
GM28
TABLE TOP
29
GM29
BACK GUIDE
30
GM30
GUIDE A CUT
31
GM31
LOCK SCREW
32
GM32
BLADE GUARD ASSY
33
GM33
BLADE GUARD - COVER
34
GM34
BLADE GUARD - LOCKING SCREW
35
GM35
WATER FEED
36
GM36
WATER TAP
37
GM37
FAN COVER
Wear parts are worn out through normal use of the machine. The wear period depends a lot on the
intensity of use of the machine. Wear parts must be serviced, used and eventually changed
following the indications of the manufacturer. Any wear due to normal use of the machine will not be
considered as a case of warranty.

Conformity Notice
RED BAND UK LTD
DECLARATION OF CONFORMITY
The Undersigned Manufacturer :
Red Band UK Ltd
Unit 70, The Warren
East Goscote Industrial Estate
East Goscote
Leicester
LE7 3XA
Declare that the product :
MB Masonry Bridge Saw
Is in conformity with the European Machine Directive 98/37/EC
And BS EN 12418 : 2000
…………………………….
Alan Newton
Director
01/03/2008