JPW JET MBS-708CSB User manual

MBS-708CSB
Metal Bandsaw
Original:
GB
Operating Instructions
JPW (Tool) AG
Tämperlistrasse 5
CH-8117 Fällanden
Switzerland
Phone [phone]
Fax [phone]
www.jettools.com
M-50000316M 2018-01

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CE-Conformity Declaration
CE-Konformitätserklärung
Déclaration de Conformité CE
Product / Produkt / Produit:
Metal Band Saw / Metallbandsäge / Scie à ruban
MBS-708CSB
Brand / Marke / Marque:
JET
Manufacturer / Hersteller / Fabricant:
JPW (Tool) AG, Tämperlistrasse 5, CH-8117 Fällanden
Schweiz / Suisse / Switzerland
We hereby declare that this product complies with the regulations
Wir erklären hiermit, dass dieses Produkt der folgenden Richtlinie entspricht
Par la présente, nous déclarons que ce produit correspond aux directives suivantes
2006/42/EC
Machinery Directive / Maschinenrichtlinie / Directive Machines
2014/30/EU
electromagnetic compatibility
elektromagnetische Verträglichkeit
compatibilité électromagnétique
designed in consideration of the standards
und entsprechend folgender zusätzlicher Normen entwickelt wurde
et été développé dans le respect des normes complémentaires suivantes
EN ISO 12100:2010
EN 13898:2003+A1:2009
EN 60204-1:2006/AC2010
EN 61000-6-2:2005
EN 61000-6-4:2007/A1:2011
Responsible for the Documentation / Dokumentations-Verantwortung / Résponsabilité de Documentation:
Hansjörg Meier
Head Product-Mgmt. / Leiter Produkt-Mgmt. / Resp. Gestion des Produits
JPW (Tool) AG
2017-10-13 Jan Dätwyler, General Manager
JPW (Tool) AG, Tämperlistrasse 5, CH-8117 Fällanden
Schweiz / Suisse / Switzerland

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Table of Contents
TABLE OF CONTENTS................................................................................................................... 3
UNPACKING..........................................................................................................................................................................7
CLEANING ............................................................................................................................................................................7
PRIOR TO OPERATION .............................................................................................................................................................7
SET-UP AND ASSEMBLY ............................................................................................................... 8
STAND.................................................................................................................................................................................8
HARDWARE ..........................................................................................................................................................................8
SAW HEAD ...........................................................................................................................................................................8
WORK STOP .........................................................................................................................................................................9
STAND ASSEMBLY ..................................................................................................................................................................9
MOUNTING SAW TO STAND.....................................................................................................................................................9
INSTALL THE EXTENSION TRAYS ...............................................................................................................................................10
MACHINE BASE ...................................................................................................................................................................10
COOLANT SYSTEM................................................................................................................................................................10
OPERATING CONTROLS ............................................................................................................. 11
OPERATION OF CONTROL PANEL.............................................................................................................................................11
OPERATION .............................................................................................................................. 12
SPRING SETTING ..................................................................................................................................................................12
COUNTERBALANCE SPRING.....................................................................................................................................................12
GENERAL OPERATING PROCEDURE ...........................................................................................................................................12
ADJUSTMENTS .......................................................................................................................... 13
ADJUSTING MOVABLE BLADE GUIDE ........................................................................................................................................13
VISE OPERATION .................................................................................................................................................................13
ADJUSTING BLADE TENSION...................................................................................................................................................13
BLADE INSTALLATION/REPLACEMENT .......................................................................................................................................14
TEST CUTTING TO VERIFY ADJUSTMENT.....................................................................................................................................14
ADJUSTING BLADE SQUARE TO TABLE ......................................................................................................................................15
ADJUSTING BLADE SQUARE TO VISE ........................................................................................................................................15
SQUARING BLADE TO VISE......................................................................................................................................................15
ADJUSTING BLADE TRACKING .................................................................................................................................................16
ADJUSTING BOW ANGLE FOR MITER CUTS.................................................................................................................................16
ADJUSTING BLADE GUIDE BEARINGS........................................................................................................................................17
SELECTING THE BLADE ..........................................................................................................................................................17
BLADE SPEEDS........................................................................................................................... 18
EVALUATING CUTTING EFFICIENCY ............................................................................................ 18
MAINTENANCE ......................................................................................................................... 19
LUBRICATION............................................................................................................................ 19
TROUBLESHOOTING.................................................................................................................. 20
REPLACEMENT PARTS ............................................................................................................... 22
SAW TABLE ASSEMBLY DRAWING (1 OF 3) -EXPLODED VIEW ......................................................................................................22
SAW BOW ASSEMBLY DRAWING (2 OF 3) -EXPLODED VIEW........................................................................................................23
SAW STAND ASSEMBLY DRAWING (3 OF 3) -EXPLODED VIEW .....................................................................................................24
MBS-708CSB PART LIST .....................................................................................................................................................25
WIRING DIAGRAMS................................................................................................................... 30
MBS-708CSB ELECTRICAL APPLIANCE DESCRIPTION .................................................................................................................31

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1. Read and understand the entire owner's manual before attempting assembly or operation.
2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these
warnings may cause serious injury.
3. Replace the warning labels if they become obscured or removed.
4. This band saw is designed and intended for use by properly trained and experienced personnel only. If you are not
familiar with the proper and safe operation of a band saw, do not use until proper training and knowledge have
been obtained.
5. Do not use this band saw for other than its intended use. If used for other purposes, JPW (TOOLS) Inc., disclaims
any real or implied warranty and holds itself harmless from any injury that may result from that use.
6. Always wear approved safety glasses/face shields while using this band saw. Everyday eyeglasses only have impact
resistant lenses; they are not safety glasses.
7. Before operating this band saw, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows.
Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do
not wear gloves.
8. Wear ear protectors (plugs or muffs) during extended periods of operation.
9. Some dust created by power sanding, sawing, grinding, drilling and other construction activities contain chemicals
known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
Lead from lead based paint.
Crystalline silica from bricks, cement and other masonry products.
Arsenic and chromium from chemically treated lumber.
Your risk of exposure varies, depending on how often you do this type of work. To reduce your exposure to these
chemicals, work in a well-ventilated area and work with approved safety equipment, such as face or dust masks
that are specifically designed to filter out microscopic particles.
10. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.
11. Make certain the switch is in the OFF position before connecting the machine to the power supply.
12. Make certain the machine is properly grounded.
13. Make all machine adjustments or maintenance with the machine unplugged from the power source.
14. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting wrenches are
removed from the machine before turning it on.
15. Keep safety guards in place at all times when the machine is in use. If removed for maintenance purposes, use
extreme caution and replace the guards immediately.
16. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully
checked to determine that it will operate properly and perform its intended function. Check for alignment of
moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its
operation. A guard or other part that is damaged should be properly repaired or replaced.
17. Provide for adequate space surrounding work area and non-glare, overhead lighting.
18. Keep the floor around the machine clean and free of scrap material, oil and grease.
19. Keep visitors a safe distance from the work area. Keep children away.
20. Make your workshop child proof with padlocks, master switches or by removing starter keys.
21. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are careless acts
that can result in serious injury.

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22. Maintain a balanced stance at all times so that you do not fall or lean against the blade or other moving parts. Do
not overreach or use excessive force to perform any machine operation.
23. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which it was
not designed. The right tool will do the job better and safer.
24. Use recommended accessories; improper accessories may be hazardous.
25. Maintain tools with care. Keep blades sharp and clean for the best and safest performance. Follow instructions for
lubricating and changing accessories.
26. Make sure the work piece is securely clamped in the vise. Never use your hand to hold the work piece.
27. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris —do not use your
hands.
28. Do not stand on the machine. Serious injury could occur if the machine tips over.
29. Never leave the machine running unattended. Turn the power off and do not leave the machine until the blade
comes to a complete stop.
30. Remove loose items and unnecessary work pieces from the area before starting the machine.
31. Pull the mains plug if the machine is not in use.
Familiarize yourself with the following safety notices used in this manual:
This means that if precautions are not heeded, it may result in minor injury and/or possible machine
damage.
This means that if precautions are not heeded, it may result in serious injury or possibly even death.

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SPECIFICATIONS
Model ..........................................................................................................................................................MBS-708CSB
Stock Number...............................................................................................................................................50000316M
Round at 90°(mm) ............................................................................................................................................... 180
Round at Right 45°(mm) ...................................................................................................................................... 125
Round at Left 45°(mm) ....................................................................................................................................... 140
Round at 60°(mm) ................................................................................................................................................. 95
Rectangle at 90°(mm) .................................................................................................................................165 x 220
Rectangle at Right 45°(mm) ..........................................................................................................................150 x 70
Rectangle at Left 45°(mm) .........................................................................................................................135 x 150
Rectangle at 60°(mm) .....................................................................................................................................90 x 95
Blade Size (mm)....................................................................................................................................... 19 x 0.9 x 2285
Blade Tension (kg/cm2)............................................................................................................................. 1500~1700
Blade material...................................................................................................................................... HSS M42 5/8T
Blade Speeds (MPM) ........................................................................................................................................... 35 ~ 85
Blade Wheel Diameter (mm) .................................................................................................................................... 250
Coolant Capacity (Liter)............................................................................................................................................... 10
Bed Height (mm) ....................................................................................................................................................... 920
Motor (DC Brushless) ........................................................................................................................0.75kW, 230V, 1Ph
Floor Space Required (L x W x H) (mm).............................................................................................. 1140 x 562 x 1295
Machine Package (mm)........................................................................................................................ 1250 x 580 x 912
Net Weight (kg) ......................................................................................................................................................... 120
Gross Weight (kg)...................................................................................................................................................... 145
Coolant pump
Handle trigger
Blade tension handle
Fixed vise
Band tension gauge
Adjustable level
pad
Steel stand
Control panel
Water tray with coolant tank
Adjustable vise
Rotating arm for miter
cuts
DC brushless motor
Vise locking Wheel
Blade guide
Bow

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SHIPPING CONTENT
Read and understand the entire contents of this
manual before attempting assembly or
operation! Failure to comply may cause serious
injury.
Unpacking
Remove box and wood crating completely from
around saw. Check for shipping damage. Report
any damage immediately to your distributor and
shipping agent. Do not discard any shipping
material until the Table Saw is assembled and
running properly.
Compare the contents of your container with the
parts lists in the next page to make sure all parts
are intact. Missing parts, if any, should be reported
to your distributor. Read the instruction manual
thoroughly for assembly, maintenance and safety
instructions.
1. Unbolt the saw from the skid.
2. Carefully slide the saw from the pallet onto
the floor.
Do not connect the saw to the power source
until all assembly has been completed! Failure to
comply may cause serious injury!
The Metal Saw should be placed in an area with a
sturdy level floor, good ventilation and sufficient
lighting. Leave enough space around the machine
for mounting extension trays and bow swivel, and
loading and off-loading stock and general
maintenance work.
Cleaning
Exposed metal surfaces, such as the table top and
moveable vise sliding area, have been given a
protective coating at the factory. This should be
removed with a soft cloth moistened with
kerosene. Do not use acetone, gasoline, or lacquer
thinner for this purpose. Do not use solvents on
plastic parts, and do not use an abrasive pad
because it may scratch the surfaces.
Prior to operation
1. Check to see blade tooth direction matches
diagram on saw body.
2. Check to see that blade is properly seated on
wheels after proper tension has been applied.
3. Set blade guide roller bearing snug against
blade. See Adjusting Blade Guide Bearings for
more details.
4. Check for slight clearance between vertical
rollers and back of blade.
5. Position movable blade guide as close to work
as possible.
6. Select proper speed and feed rate for
materials being cut.
7. Material to be cut must be held securely in
vise.
8. Do not start cut on a sharp edge. File the
edge first.

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Set-Up and Assembly
Stand
Referring to Figure 1.
1 Band Saw (not shown)
1 Front Stand Panel (A)
1 Rear Stand Panel (B)
1 Left Stand Panel (C)
1 Right Stand Panel (D)
1 Extension Water Tray for Front (E)
1 Extension Water Tray for Rear (F)
1 Operating Instructions manual (not shown)
Hardware
Referring to Figure 2.
8 M8 x 15 Hex Head Cap Screw (G)
8 5/16” Flat Washer (H)
8 M8 Hex Nut (J)
2 Adjustment Pad w/ Hex nut (K)
Machine Features
Referring to Figure 3.
It depicts the main features of the Model MBS-708CSB
Bandsaw. The machine consists of a machine base onto
which is installed a saw head.
Saw Head
The saw head consists of a drive motor, gearbox, blade
wheels, blade guides and supports, control panel, blade
tension mechanism, wire brush, and the saw blade.
The drive wheel is installed on the output shaft of the
gearbox. The driven wheel is located on the left side of
the machine and is mounted on a shaft that is part of
the blade tension mechanism. The blade tension
mechanism is used to tighten the saw blade on the
blade wheels.
Blade tension generally requires adjustment only after
the saw blade is changed, but the tension should be
monitored with the convenient blade tension indicator.
Contents of the Carton (Fig 1)
Hardware (Fig 2)
Fig 3

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Work Stop
Referring to Figure 4.
A work-stop is provided with the machine to allow
cutting multiple pieces of identical length. The stop
consists of a set rod onto which is installed a distance
set bracket, stop rod assembly and two lock handles.
The rod is installed in a bore in the front of the saw bed.
The distance set bracket is moved in or out on the set
rod to establish the length of the work-piece and the
stop rod can be adjusted to accommodate work-pieces
of various widths.
Stand Assembly
Referring to Figure 5.
Tools required for assembly:
Two 13mm wrenches (Note: A ratchet wrench may
speed assembly time.)
1. Assemble the rear (D1) and right side (E1)panels
with two M8 x 15 hex cap screws (A), two 5/16” flat
washers (B) and two M8 hex nuts (C). Tighten the
hex nuts.
2. Assemble E2and D2in the same manner.
3. Assemble the level pad (G) and hex nut (F) in stand.
4. Finish assembling E2to D1and E1to D2in the same
manner as above.
Mounting Saw to Stand
Remove any plastic or holding straps from around the
band saw. Areas of the machine have been given a
protective coating at the factory. This should be
removed using a soft cloth moistened with kerosene or
a cleaner-degreaser. Do not use gasoline, paint thinner,
or lacquer thinner as these will damage painted
surfaces. Do not use an abrasive pad.
Determine the final location for the saw and allow for a
sufficient work space around it.
The saw is extremely heavy. Use a
hoist to lift.
When moving the saw/stand top
assembly the cutting head, or “bow”, should be in the
down position.
Fig. 4
Assembly (Fig 5)

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Referring to Figure 6:
1. The saw (A) and stand top (B) come as an
assembled unit. Use a hoist to lift and place the saw
onto the stand (C).
Note that the front of the saw faces the same
direction as the indented panel of the stand.
2. Adjust the stand top (B) and stand (C) so the corner
mounting holes (D) are aligned.
3. Secure the stand top (B) to the stand (C) with four
each M8 hex cap screws (E) with M8 flat washers
(F). Tighten with a 13mm hex wrench.
Install the extension trays
Refer to Fig 7.
Install the coolant collectors (R) at the left and right side
of the base.
Machine Base
Referring to Fig 8.
The base is a structure supporting the saw frame, the
vise, the bar stop, the work-piece supporter, coolant
pump, swing arm, and the coolant return plates. The
base house includes the cooling liquid tank.
Assembly (Fig 6)
Fig. 7
Fig. 8
Coolant System
Referring to Fig 9.
Oils for Lubricating Coolant
Considering the vast range of products on the market,
the user can choose the one most suited to their own
requirements, using as reference the type SHELL LUTEM
OIL ECO. THE MINIMUM PERCENTAGE OF OIL DILUTED
IN WATER IS 10 - 20 %.
Cleaning the Tan
Use hex wrench to open the plug located on the rear
base below the pump. Allow the coolant to drain-out.
Remove the filter net (P) by loosening the four screws.
Remove the pump (Q) by loosening the four screws.
Use a vacuum cleaner to vacuum chips and debris from
the tank.
Replace the plug.
Thoroughly clean the pump (Q) and replace.
Fill the tank with coolant to approximately 25mm below
the filter net (P).
Clean and replace the filter net.
R
C