Hyd-Mech S-20 Series II User manual

i
Dear Customer,
As a businessman you understand the necessity of keeping the cost of each step of production to an
absolute minimum without sacrificing quality. In the purchase of any new piece of equipment you are looking to
increase your production and consequently reduce your cost, while maintaining or improving quality.
With these points clearly in mind we have designed the HYD-MECH S-20 Series II. Our goal is to change
stock cutoff from a "necessary evil" to a money making and time saving part of your operation.
Please use this manual to familiarize yourself and your employees on the proper operation and
maintenance of the S-20 Series II.
We appreciate the confidence you have shown in our product and wish you every success in its use.
Sincerely,
HYD-MECH ENGINEERING LTD.
Stan Jasinski, P. Eng.,
Founder
HYD-MECH GROUP
1079 Parkinson Road
P.O. BOX 1087
Woodstock, Ontario
N4S 8P6
Phone:[phone]
Fax: [phone]
e-mail:[email protected]
Published1/13/99

ii
S-20 SERIES II,TABLE OF CONTENTS
SECTION 1 INSTALLATION Page #
SafetyPrecautions ................................................... 1.1
OperatorSafety-VisualInspection.......................... 1.2
LiftingtheS-20SeriesII........................................... 1.3
WrappedforShipping.............................................. 1.3
LevellingtheSaw...................................................... 1.4
PowerWiringConnections........................................ 1.4
HydraulicOilCheck................................................... 1.5
CuttingFluid.............................................................. 1.5
SECTION 2A CONTROLCONSOLE
OperatorControlPanel.............................................. 2.1
BladeBasicstoEnhanceBladeLife........................... 2.2
BladeSpeedSelectionChart ................................... 2.3
OptimumBladePitch................................................ 2.3
SECTION 2C MECHANICALCONTROLS
HeadSwingandBreak............................................... 2.5
HeadDownLimitSwitch............................................ 2.5
BladeSpeedSelectionandBeltTension................... 2.6
ChangingBeltPosition.............................................. 2.6
ViseOperation.......................................................... 2.7
GuideArmPositioning.............................................. 2.8
CoolantFlow............................................................. 2.9
SECTION 3 MAINTENANCEANDTROUBLESHOOTING
BladeChangingProcedure....................................... 3.1
BladeTrackingAdjustment....................................... 3.2
BladeGuideAdjustment........................................... 3.3
BladeBrushAdjustment........................................... 3.4
AngleBrakeAdjustment........................................... 3.4
BeltTensionAdjustment........................................... 3.5
Lubrication .............................................................. 3.6
TroubleshootingGuide............................................. 3.8
ServiceRecord&Notes........................................... 3.9

iii
SECTION 4 ELECTRICAL SYSTEM
ControlPanel&Components.............................. 4.1
ElectricalSchematic,S22-7-00-1b...................... 4.2
WiringDiagram,S22-7-00-2b.............................. 4.3
MotorandControlDevicesSelection.................. 4.4
PowerComponentsList..................................... 4.5
SECTION 6 MECHANICAL ASSEMBLIES
GuideArmandCarbideAssemblies.................. 6.1
BladeDriveAssembly....................................... 6.2
IdlerWheelAssembly........................................ 6.4
BladeBrushAssembly...................................... 6.6
CounterBalanceSpringAssembly.................... 6.7
3PositionValveAssembly................................. 6.8
HeadCylinderAssembly................................... 6.9
PivotLinkAssembly.......................................... 6.10
ViseAssembly................................................... 6.11
HM3-SP-R-M-AGearboxAssembly..................... 6.12
CoolantGroup................................................... 6.13
DoorsandCovers.............................................. 6.14
SECTION 7 OPTIONAL EQUIPMENT
WorkStopAssembly........................................... 7.1
BundlingAttachment......................................... 7.2
3HPVariableSpeedDrive................................. 7.4
BladeBreakageAssembly................................. 7.6
WorkLampAssembly........................................ 7.6
30DegreeMitreCutting..................................... 7.7
SECTION8 SPECIFICATIONS
SpecificationList............................................... 8.1
DimensionalDrawings....................................... 8.2
SECTION 9 WARRANTY
Warranty.............................................................9.1

PG 1.1
SECTION 1,SECTION 1,
SECTION 1,SECTION 1,
SECTION 1, INSTINST
INSTINST
INSTALLALL
ALLALL
ALLAA
AA
ATIONTION
TIONTION
TION
Upon delivery of your new S-20 Series II saw, it is imperative that a thorough inspection be undertaken to check
for any damage that could have been sustained during shipping. Special attention should be paid to the electrical and
hydraulic systems to check for damaged cords, hoses and fluid leaks. In the event of damage caused during shipping,
contact your carrier to file a damage claim.
SAFETY PRECASAFETY PRECA
SAFETY PRECASAFETY PRECA
SAFETY PRECAUTIONSUTIONS
UTIONSUTIONS
UTIONS
The S-20 Series II has been designed to give years of reliable service. It is essential that operators be alerted
to the safe operation of this saw, and the practices to avoid that could lead to injury. The following safety rules are
at the minimum necessary for the safe installation, operation, and maintenance of the saw. Take every precaution
for the protection of operators and maintenance personnel.
* POWER HOOK-UPS AND REPAIRS SHOULD BE ATTEMPTED ONLY BY QUALIFIED TRADESMEN.
* THE SAW SHOULD BE LOCATED IN AN AREA WITH SUFFICIENT ROOM TO
SAFELY LOAD STOCK INTO THE SAW. SECURE THE SAW TO THE FLOOR.
* THE AREA AROUND THE SAW SHOULD BE MAINTAINED IN A CLEAN AND
TIDY CONDITION TO AVOID OBSTACLES OPERATORS COULD TRIP OVER.
* THE S-20 SERIES II SHOULD ONLY BE OPERATED ACCORDING TO THE
SPECIFICATIONS OF THE SAW. AVOID UNSAFE USAGE PRACTICES.
* IF AT ANY TIME THE SAW DOES NOT APPEAR TO BE OPERATING PROPERLY
IT SHOULD BE STOPPED IMMEDIATELY AND REPAIRED.
*OPERATOR : THE SAW SHOULD NEVER BE OPERATED UNLESS ALL GUARDS
AND DOORS ARE IN PLACE AND CLOSED.
*OPERATOR : KEEP A SAFE DISTANCE FROM ALL MOVING PARTS - ESPECIALLY
THE BLADE AND VISES.
*OPERATOR : LOOSE CLOTHING AND GLOVES SHOULD NEVER BE WORN WHILE
OPERATING THE SAW. COVER LONG HAIR.
*OPERATOR : STOCK SHOULD NOT BE LOADED ONTO THE SAW IF THE BLADE IS RUNNING.
*OPERATOR : LONG AND HEAVY STOCK SHOULD ALWAYS BE PROPERLY SUPPORTED
IN FRONT OF AND BEHIND THE SAW.
*OPERATOR : NEVER ATTEMPT TO DISLODGE OR MOVE STOCK WHILE THE BLADE
IS MOVING. TAKE THE TIME TO STOP THE SAW BLADE, REMOVE
OBSTRUCTIONS, AND RESTART BLADE.
*OPERATOR: MUST WEAR EYE PROTECTION
* OPERATOR: MAINTAIN PROPER ADJUSTMENT OF BLADE TENSION, BLADE
GUIDES, AND THRUST BEARINGS
*OPERATOR: HOLD WORK PIECE FIRMLY AGAINST TABLE
*OPERATOR: DO NOT REMOVE JAMMED CUTOFF PIECES UNTIL BLADE HAS STOPPED
*NO MODIFICATIONS TO THE MACHINE ARE PERMITTED WITHOUT PRIOR APPROVAL FROM
HYD-MECH. ANY APPROVED MODIFICATIONS SHOULD ONLY BE UNDERTAKEN BY TRAINED
PERSONNEL.

PG 1.2
OPERAOPERA
OPERAOPERA
OPERATT
TT
TOR SAFETYOR SAFETY
OR SAFETYOR SAFETY
OR SAFETY --
--
-VISUVISU
VISUVISU
VISUAL INSPECTIONAL INSPECTION
AL INSPECTIONAL INSPECTION
AL INSPECTION
TT
TT
The operhe oper
he operhe oper
he operaa
aa
ator should altor should al
tor should altor should al
tor should alww
ww
waa
aa
ayy
yy
ys maks mak
s maks mak
s make a visual inspection ofe a visual inspection of
e a visual inspection ofe a visual inspection of
e a visual inspection of the sathe sa
the sathe sa
the saw befw bef
w befw bef
w beforor
oror
ore opere oper
e opere oper
e operaa
aa
atingting
tingting
ting..
..
.
TT
TT
The fhe f
he fhe f
he following arollowing ar
ollowing arollowing ar
ollowing areas should be ceas should be c
eas should be ceas should be c
eas should be chechec
hechec
heckk
kk
ked.ed.
ed.ed.
ed.
1.1.
1.1.
1. BLBL
BLBL
BLADEADE
ADEADE
ADE --
--
-KEEP AWAKEEP AWA
KEEP AWAKEEP AWA
KEEP AWAY FROM MOY FROM MO
Y FROM MOY FROM MO
Y FROM MOVING BLVING BL
VING BLVING BL
VING BLADE!ADE!
ADE!ADE!
ADE!
2.2.
2.2.
2. VISEVISE
VISEVISE
VISE --
--
-NEVER LNEVER L
NEVER LNEVER L
NEVER LOO
OO
OAD STAD ST
AD STAD ST
AD STOCK WITH BLOCK WITH BL
OCK WITH BLOCK WITH BL
OCK WITH BLADE MOADE MO
ADE MOADE MO
ADE MOVING!VING!
VING!VING!
VING!
3.3.
3.3.
3. HEADHEAD
HEADHEAD
HEAD --
--
-WAWA
WAWA
WATT
TT
TCH FOR HEAD DESCENDING TCH FOR HEAD DESCENDING T
CH FOR HEAD DESCENDING TCH FOR HEAD DESCENDING T
CH FOR HEAD DESCENDING TO TO T
O TO T
O TABLE!ABLE!
ABLE!ABLE!
ABLE!
4.4.
4.4.
4. PIVPIV
PIVPIV
PIVOO
OO
OTT
TT
T--
--
-CHECK FOR HEAD MOCHECK FOR HEAD MO
CHECK FOR HEAD MOCHECK FOR HEAD MO
CHECK FOR HEAD MOVEMENT BLVEMENT BL
VEMENT BLVEMENT BL
VEMENT BLOCKAOCKA
OCKAOCKA
OCKAGE!GE!
GE!GE!
GE!
5.5.
5.5.
5. DRIVEDRIVE
DRIVEDRIVE
DRIVE --
--
-SECURE PULLEY COSECURE PULLEY CO
SECURE PULLEY COSECURE PULLEY CO
SECURE PULLEY COVER WHEN RVER WHEN R
VER WHEN RVER WHEN R
VER WHEN RUNNING!UNNING!
UNNING!UNNING!
UNNING!
SafSaf
SafSaf
Safety Inspection Pety Inspection P
ety Inspection Pety Inspection P
ety Inspection Points foints f
oints foints f
oints for Operor Oper
or Operor Oper
or Operaa
aa
atortor
tortor
torss
ss
s
11
11
1
55
55
5
33
33
3
22
22
2
44
44
4

PG 1.3
S-20 Series II Mounted to Shipping PS-20 Series II Mounted to Shipping P
S-20 Series II Mounted to Shipping PS-20 Series II Mounted to Shipping P
S-20 Series II Mounted to Shipping Palletallet
alletallet
allet
WRAPPED FOR SHIPPINGWRAPPED FOR SHIPPING
WRAPPED FOR SHIPPINGWRAPPED FOR SHIPPING
WRAPPED FOR SHIPPING
The S-20 Series II is shrink-wrapped for shipping from our plant. Remove the wrapping from around
the saw. Complete the inspection for signs of damage. Undo the bolts that hold the saw to the pallet.
Retain these bolts to use for levelling. The following photo illustrates the floor mounting plates located at
the corners of the saw. The larger diameter hole is used for retaining during shipping and for use with
concrete floor anchors. The smaller diameter, threaded holes at each corner are used for levelling the
saw properly.
Lifting the S-20 Series II with a FLifting the S-20 Series II with a F
Lifting the S-20 Series II with a FLifting the S-20 Series II with a F
Lifting the S-20 Series II with a Foror
oror
orkk
kk
klift Tlift T
lift Tlift T
lift Trr
rr
rucuc
ucuc
uckk
kk
k
LIFTING THE S-20 SERIES IILIFTING THE S-20 SERIES II
LIFTING THE S-20 SERIES IILIFTING THE S-20 SERIES II
LIFTING THE S-20 SERIES II
FORKLIFTFORKLIFT
FORKLIFTFORKLIFT
FORKLIFT
The S-20 Series II is shipped with a shipping pallet attached to the saw. When lifting the pallet with
a forklift truck make sure that the load is firmly balanced. The following photo shows a lift truck lifting the
saw and pallet from the correct side. The pallet length dimension is 84". Minimum fork length of 72" is
recommended to safely lift the pallet.

PG 1.4
Coolant RCoolant R
Coolant RCoolant R
Coolant Return (Shown with tank return (Shown with tank r
eturn (Shown with tank return (Shown with tank r
eturn (Shown with tank remoemo
emoemo
emovv
vv
ved)ed)
ed)ed)
ed)
LEVELLING THE SAWLEVELLING THE SAW
LEVELLING THE SAWLEVELLING THE SAW
LEVELLING THE SAW
Use a machinist's level across the vise table to level the saw. Adjust the level with the levelling
bolts supplied. Consideration should be given to the flow of the coolant as it returns to the coolant
trough at the vise end of the saw. Levelling to give a small incline towards this area helps to ensure the
coolant supply returns to the container.
WW
WW
Wash Down Hoseash Down Hose
ash Down Hoseash Down Hose
ash Down Hose
Coolant PumpCoolant Pump
Coolant PumpCoolant Pump
Coolant Pump
POPO
POPO
POWER WIRING CONNECTIONSWER WIRING CONNECTIONS
WER WIRING CONNECTIONSWER WIRING CONNECTIONS
WER WIRING CONNECTIONS
When the machine has been anchored and levelled the power hook-up is the last installation step.
In order to provide safe operation and to prevent potential damage to the machine, only qualified
personnel should make the electrical connections.
As supplied your new S-20 Series II is set to run on three phase voltage. The supply voltage of the
machine is displayed on the Serial # Plate and the Voltage Label. Connection from the Main supply is
made to L1, L2, L3, ( at the Motor Contactor ) and Ground ( at the Ground Lug ).
Supply conductors should be rated for the current supplied and should be protected by time delay
fusing rated for the amperage stated on the machine serial plate
CHECK FOR: -Signs of damage to the electrical cables from shipping or installation.
-Correct phase order - The blade should be running counter clockwise.
( If the blade direction is wrong, two lines should be reversed to correct )
Ground
L1 Motor Contactor
L2
L3
PP
PP
Powow
owow
ower Wiring to the Motor Contactorer Wiring to the Motor Contactor
er Wiring to the Motor Contactorer Wiring to the Motor Contactor
er Wiring to the Motor Contactor

PG 1.5
HYDRAHYDRA
HYDRAHYDRA
HYDRAULIC OILULIC OIL
ULIC OILULIC OIL
ULIC OIL
The S-20 Series II is supplied with an "EDM" fluid in the Head cylinder. Substitutes should be an
"EDM" fluid (code 499) which is equal in viscosity to a #5 hydraulic oil.
The cylinder contains oil in a reservoir that should be topped up to the level of the filler plug. Add
oil to the cylinder only with the Head in the Head Down position. The head cylinder is a self air-bleeding
cylinder with a small port in the top plate. If excess oil is displaced from this port, the cylinder is working
normally.
CUTTING FLCUTTING FL
CUTTING FLCUTTING FL
CUTTING FLUIDUID
UIDUID
UID
The S20 Series ll uses a pump and reservoir to circulate the necessary cutting fluid to the blade
for maximum blade life. Your saw blade supplier will be able to provide information to the cutting fluid
products that are available for your needs.
No cutting fluid (coolant) is supplied with the machine. There are two types of coolant available:
- oil based; dilute 1:10 ratio ( one part concentrated coolant to 10 parts water)
- synthetic; dilute as recommended by manufacturer.
Head Cylinder FHead Cylinder F
Head Cylinder FHead Cylinder F
Head Cylinder Filler Plugiller Plug
iller Plugiller Plug
iller Plug

PG 2.1
SECTION 2A,SECTION 2A,
SECTION 2A,SECTION 2A,
SECTION 2A, CONTROL CONSOLECONTROL CONSOLE
CONTROL CONSOLECONTROL CONSOLE
CONTROL CONSOLE
OPERAOPERA
OPERAOPERA
OPERATT
TT
TOR CONTROL POR CONTROL P
OR CONTROL POR CONTROL P
OR CONTROL PANELANEL
ANELANEL
ANEL
The operator control panel provides the operator with all the controls necessary to operate thesaw
after the cutting angle has been set and the stock has been loaded and secured. All of the electrical
functions and the Feed Rate setting are operated from the control panel.
HOLD: - Stops and holds the Head at position.
FEED: - The Head will descend at the rate set by the
Feed Rate knob. This rate can be set on the scale
of 1 to 10. As the number increases so does feed
rate.
DOWN: - Allows for rapid approach of the blade to the
workpiece.
OperOper
OperOper
Operaa
aa
ator Contrtor Contr
tor Contrtor Contr
tor Control Consoleol Console
ol Consoleol Console
ol Console
START Button - This button starts the saw blade.
The blade will not start with the
Head in the down position.
STOP Button - Pressing the RED mushroom button
will STOP the blade.
COOLANT Switch - OFF: No coolant flow.
ON: Coolant flow when blade is
running
WASH: Constant flow
FUSE - Check if power fails.
Twist & pull to remove fuse.
ELECTRICAL CONTROLELECTRICAL CONTROL
ELECTRICAL CONTROLELECTRICAL CONTROL
ELECTRICAL CONTROLSS
SS
S
HYDRAHYDRA
HYDRAHYDRA
HYDRAULIC CONTROLULIC CONTROL
ULIC CONTROLULIC CONTROL
ULIC CONTROLSS
SS
S

PG 2.2
BLBL
BLBL
BLADE BADE B
ADE BADE B
ADE BASICSASICS
ASICSASICS
ASICS
Technology is rapidly changing all aspects of production machining. Metal cutoff is no exception.
The advances made in the bandsaw blade industry have definitely brought down the cost per cut, despite
the three fold higher price of the newer technology blades. Variable pitch (see Pg 2.3), bi-metal blades
(like the 5/8 or 4/6 bi-metal blade supplied with the S-20 Series II saws) last much longer, cut faster, and
more accurately than the conventional carbon steel blades. In order to take advantage of the superiority
of bi-metal blades, it is critical to property break-in a new blade. This is accomplished by taking two or
three cuts through solid four or five inch diameter mild steel at an extremely slow feed rate. These two or
three slow cuts sufficiently lap (polish) the new blade so that it does not snag the material being cut.
Proper break-in will alleviate blade vibration, improve surface finish and accuracy, and improve expected
blade life.
1. A neA ne
A neA ne
A new bw b
w bw b
w blade mlade m
lade mlade m
lade must be prust be pr
ust be prust be pr
ust be properoper
operoper
operly "brly "br
ly "brly "br
ly "brokok
okok
oken-in"en-in"
en-in"en-in"
en-in"..
..
. Proper break-in will alleviate blade vibration, improve
surface finish and accuracy, and extend blade life. The most convenient way to do this is to cut the
intended work-piece, at the standard recommended blade speed for that material, but with the feed
rate reduced to about 25% of normal. Near the end of the first cut, increase the feed rate again, and
once again when the blade approaches the end of the second cut. Keep increasing feed rate in this
fashion, so that normal feed rate is reached after 300 to 500 sq. cm of cutting.
2. GenerGener
GenerGener
Generous coolant aous coolant a
ous coolant aous coolant a
ous coolant applicapplica
pplicapplica
pplication is essential with almost all mation is essential with almost all ma
tion is essential with almost all mation is essential with almost all ma
tion is essential with almost all materialsterials
terialsterials
terials. A high quality and well mixed
coolant will dramatically extend blade life, and will increase cutting rate and surface finish. On those
few materials where coolant is undesirable, a slight coolant flow or periodic oiling of the blade is
necessary to prevent the blade from being scored by the carbide guides.
3. TT
TT
The stoche stoc
he stoche stoc
he stock being cut mk being cut m
k being cut mk being cut m
k being cut must be securust be secur
ust be securust be secur
ust be securely cely c
ely cely c
ely clamped in the viseslamped in the vises
lamped in the viseslamped in the vises
lamped in the vises..
..
. Stock movement during cutting will strip
blade teeth. Noticeable stock vibration reduces cutting performance and blade life - consideration
should be given to reorientation of the stock, or additional clamping measures (e.g. wood between
vise jaws and work-piece).
4. TT
TT
The prhe pr
he prhe pr
he proper boper b
oper boper b
oper blade speed flade speed f
lade speed flade speed f
lade speed for the wor the w
or the wor the w
or the woror
oror
ork-piece mak-piece ma
k-piece mak-piece ma
k-piece material mterial m
terial mterial m
terial must be selectedust be selected
ust be selectedust be selected
ust be selected..
..
.
Use the following chart as a starting point.
- Blade speeds higher than recommended will quickly dull the blade. Blue chips are evidence of
excessive blade speed.
- Lower than recommended speeds will not prolong blade life, and will require reduced feed rate - but
reduced speeds may be helpful in reducing vibration, and will increase blade life in that case.
5. TT
TT
The prhe pr
he prhe pr
he proper foper f
oper foper f
oper feed reed r
eed reed r
eed raa
aa
ate mte m
te mte m
te must be aust be a
ust be aust be a
ust be appliedpplied
ppliedpplied
pplied..
..
. Feed Rate is the speed which the head "free-falls", and is set
with the feed rate control knob. The head will descend more slowly when the blade encounters the
work-piece but the force of the blade on the work will not be changed unless the setting is changed.
Verification of proper feed rate is provided by the appearance of the cut chips which ideally form
nicely curled "clock springs". (Note that cast irons, and interrupted cuts result in short, broken chips
even at ideal feed rates).
- Excessive feed rate will result in short blade life and/or crooked cuts.

PG 2.3
(
140, 220140, 220
140, 220140, 220
140, 220
140, 220140, 220
140, 220140, 220
140, 220
90, 14090, 140
90, 14090, 140
90, 140
140, 220140, 220
140, 220140, 220
140, 220
90, 14090, 140
90, 14090, 140
90, 140
140, 220140, 220
140, 220140, 220
140, 220
140, 220140, 220
140, 220140, 220
140, 220
140, 220140, 220
140, 220140, 220
140, 220
310310
310310
310
220220
220220
220
( in SFM )
( in SFM )
( in SFM )
( in SFM )
( in SFM )
Optimum Blade Pitch ( T.P.I. ) for Material Width ( Inches )
DETERMINE OPTIMUM BLADE PITCH - TEETH PER INCH (T.P.I.)
Selecting a blade with proper tooth pitch is important in order to achieve optimal cutting rates and
good blade life.
For cutting narrow or thin wall structural materials a fine, blade with many teeth per inch (T.P.I.) is
recommended. For wide materials a blade with a coarse pitch should be used. See the sketch below for
the blade pitch changes fordiffering effective material widths.
It is impractical to change the blade to the proper pitch every time a different width of material is
cut and it is not necessary, but remember that the optimum blade will cut most efficiently. Too fine a
blade must be fed slower on wide material because the small gullets between the teeth will get packed
with chips before they get across and out of the cut. Too coarse a blade must be fed slower because it
has fewer teeth cutting and there is a limit to the depth of a cut taken by each tooth.

PG 2.5
SECTION 2CSECTION 2C
SECTION 2CSECTION 2C
SECTION 2C,,
,,
,MECHANICAL CONTROLMECHANICAL CONTROL
MECHANICAL CONTROLMECHANICAL CONTROL
MECHANICAL CONTROLSS
SS
S
HEAD SWING and BREAKHEAD SWING and BREAK
HEAD SWING and BREAKHEAD SWING and BREAK
HEAD SWING and BREAK
An integral function of the S-20 Series II is the ability to make mitred cuts at angles between 90
degrees and 45 degrees. The Head swing of the S-20 Series II is easily changed to set a different cutting
angle by first releasing the Angle Brake lever, and then manually moving the Head to the cutting angle
desired. An angle scale with a pointer in clear view of the saw operator allows for accurate setting of the
cutting angle. The Angle Brake lever is then locked in position by forcing it into the down position. It
should be noted that the angle brake should be locked into position whenever cutting with the saw. The
photo below illustrates the Angle Brake in the locked position at 65 degrees. To set the saw to the 90
degree position, the Head ( in the fully down position ) is moved until the frame meets the 90 degree stop
bolt which is located in the coolant tray at the drive end of the head.
HEAD DOHEAD DO
HEAD DOHEAD DO
HEAD DOWN LIMIT SWITWN LIMIT SWIT
WN LIMIT SWITWN LIMIT SWIT
WN LIMIT SWITCHCH
CHCH
CH
The Head down limit switch operates to cut power to the blade motor and the coolant pump motor
when the Head has descended to the bottom of its travel. The Head is adjusted so that the blade will
descend slightly past the level of the vise wear strips. This setting is critical to ensure that the blade has
cut fully through the stock. The Head Down Limit switch is located in the electrical box and is mounted in
such a way that as the Head descends the counterbalance spring post contacts the limit switch roller.
Adjustment of the limit switch is made by changing the position of the set bolt which is located in
the end of the spring post. Lengthening the set bolt will cause the limit switch to activate sooner as the
spring post meets the limit switch roller. Shortening the setting bolt by turning it into the spring post will
lengthen the time before the Head limit switch is activated.
Head Swing Scale and AngHead Swing Scale and Ang
Head Swing Scale and AngHead Swing Scale and Ang
Head Swing Scale and Angle Brle Br
le Brle Br
le Brakak
akak
ake ( Loce ( Loc
e ( Loce ( Loc
e ( Lockk
kk
ked )ed )
ed )ed )
ed )
Head Down Limit SwitcHead Down Limit Switc
Head Down Limit SwitcHead Down Limit Switc
Head Down Limit Switch & Adjusting Bolt (inside contrh & Adjusting Bolt (inside contr
h & Adjusting Bolt (inside contrh & Adjusting Bolt (inside contr
h & Adjusting Bolt (inside control bool bo
ol bool bo
ol box)x)
x)x)
x)

PG 2.6
CHANGING BELCHANGING BEL
CHANGING BELCHANGING BEL
CHANGING BEL
T POSITIONT POSITION
T POSITIONT POSITION
T POSITION
To change the blade speed of the S-20 Series II it is necessary to release the V belt tension and
move the V belt to another set of pulley grooves. The tension on the V belt is maintained by means of a
toggle handle assembly that moves the motor. As the handle is moved to its locking position the motor is
driven tight against the V belt. The toggle handle can be adjusted to change the effective tension on the V
belt by setting the lock nuts which mount the handle to the motor mount plate. The motor mount plate
pivots on rubber bushings that support the motor.
Blade Speed TBlade Speed T
Blade Speed TBlade Speed T
Blade Speed Tensioning Syensioning Sy
ensioning Syensioning Sy
ensioning Systemstem
stemstem
stem
BLBL
BLBL
BLADE SPEED SELECTIONADE SPEED SELECTION
ADE SPEED SELECTIONADE SPEED SELECTION
ADE SPEED SELECTION
The blade speed of the S-20 Series II can be changed between four different speeds. The speed is
determined by the ratio of the pulleys that drive the V belt. The four pulley sets give the optional speeds
of 90,140,220, and 310 Surface Feet Per Minute.
APPROXIMATE BLADE SPEED
Ratio 1 2 3 4
Ft/Min 90 140 220 310

PG 2.7
VISE OPERAVISE OPERA
VISE OPERAVISE OPERA
VISE OPERATIONTION
TIONTION
TION
The material clamping vise is a cam operated, double handle locking vise. The saw operator can
close the vise and lock it from either side of the saw. The handles have two positions, forward toward the
stock to unlock the vise, and away from the stock to lock. The following photos give a visual guide as to
the operation of the vise.
VV
VV
Vise with handles in the Locise with handles in the Loc
ise with handles in the Locise with handles in the Loc
ise with handles in the Lockk
kk
ked Ped P
ed Ped P
ed Positionosition
ositionosition
osition
VV
VV
Vise with the handles in the Unlocise with the handles in the Unloc
ise with the handles in the Unlocise with the handles in the Unloc
ise with the handles in the Unlockk
kk
ked positioned position
ed positioned position
ed position

PG 2.8
GUIDE ARM POSITIONINGGUIDE ARM POSITIONING
GUIDE ARM POSITIONINGGUIDE ARM POSITIONING
GUIDE ARM POSITIONING
The S-20 Series II guide arms are adjustable to accommodate varying material widths. The guide
arms should be adjusted as close to the material width as possible while still allowing the material to
pass between them. This process of matching the guide arm spacing to the material size is important to
optimize blade life.
To adjust the guide arm spacing the locking handles are loosened by turning them counter clock-
wise. The carbide locking lever is then moved in the counter clockwise direction so that the carbides
release the blade. The guide arms will then slide on the main guide bar which supports them. To retighten
the guide arm the handle is turned clockwise until the handles are in the Locked position as illustrated in
the following photo. The carbide locking lever should be moved to the upright tensioned position.
Guide Arms with Handles LocGuide Arms with Handles Loc
Guide Arms with Handles LocGuide Arms with Handles Loc
Guide Arms with Handles Lockk
kk
ked ( 4 to 6 O'ced ( 4 to 6 O'c
ed ( 4 to 6 O'ced ( 4 to 6 O'c
ed ( 4 to 6 O'clocloc
locloc
lock Pk P
k Pk P
k Position )osition )
osition )osition )
osition )
Carbide LeCarbide Le
Carbide LeCarbide Le
Carbide Levv
vv
verer
erer
ers in Ts in T
s in Ts in T
s in Tensioned Pensioned P
ensioned Pensioned P
ensioned Position ( Upright )osition ( Upright )
osition ( Upright )osition ( Upright )
osition ( Upright )
Carbide TCarbide T
Carbide TCarbide T
Carbide Tensioning Leensioning Le
ensioning Leensioning Le
ensioning Levv
vv
verer
erer
erss
ss
s
Guide ArmGuide Arm
Guide ArmGuide Arm
Guide Arm
HandlesHandles
HandlesHandles
Handles

PG 2.9
COOLCOOL
COOLCOOL
COOLANT FLANT FL
ANT FLANT FL
ANT FLOO
OO
OWW
WW
W
The S-20 Series II bandsaw is equipped with two needle valves that independently control the
coolant nozzles which are capable of supplying a generous flow of coolant to the blade.
The left (idler) guide arm nozzle supplies a flow of coolant that should flood the blade as it moves
through the carbide pads into the material to be cut. The adjustable valve on the left guide arm
should be set to a higher flow as a higher blade speed is used to provide the flood of coolant necessary.
The right (drive) guide arm provides an adjustable coolant flow through the needle valve and the
flexible hose nozzle that can be pointed directly where necessary. This flexible hose should be used when
cutting solid bars, bundles, or wide structurals. Set the flow of coolant directly into the opening in the
material where the blade is cutting.
Coolant VCoolant V
Coolant VCoolant V
Coolant Valvalv
alvalv
alve on Guide Arm and on the Fe on Guide Arm and on the F
e on Guide Arm and on the Fe on Guide Arm and on the F
e on Guide Arm and on the Fenceence
enceence
ence..
..
.
NOTE: When cutting materials that do not need constant coolant, such as Cast Iron, some coolant
flow is required for blade lubrication to prevent blade scoring by the carbide pads as the
blade moves through them.

PG 3.1
SECTION 3,SECTION 3,
SECTION 3,SECTION 3,
SECTION 3, MAINTENMAINTEN
MAINTENMAINTEN
MAINTENANCE and TROUBLESHOOANCE and TROUBLESHOO
ANCE and TROUBLESHOOANCE and TROUBLESHOO
ANCE and TROUBLESHOOTINGTING
TINGTING
TING
BLBL
BLBL
BLADE CHANGING PROCEDUREADE CHANGING PROCEDURE
ADE CHANGING PROCEDUREADE CHANGING PROCEDURE
ADE CHANGING PROCEDURE
NONO
NONO
NOTE: WTE: W
TE: WTE: W
TE: Wear gear g
ear gear g
ear glolo
lolo
lovv
vv
ves fes f
es fes f
es for pror pr
or pror pr
or protection frotection fr
otection frotection fr
otection from the sharom the shar
om the sharom the shar
om the sharp bp b
p bp b
p bladelade
ladelade
lade..
..
.
1. Open the Idler Wheel and Drive Wheel doors and swing the head to 45 degrees as this will
make it easier to grip the blade closer to both wheels.
2. Loosen the Blade Tensioner by turning counter clockwise.
3. Loosen the carbide tension handles by turning counter clockwise 1/4 turn.
4. At the top of the head, the saw blade runs in a protective channel as shown below. Grip
the blade at each end of this channel and twist the blade teeth down past the channel and
slide the blade forward. Let the blade rest on the out feed table, then slide the blade down
and out of the carbide guides.
Carbide TCarbide T
Carbide TCarbide T
Carbide Tension Handleension Handle
ension Handleension Handle
ension Handle
Blade TBlade T
Blade TBlade T
Blade Tensionerensioner
ensionerensioner
ensioner
Blade RBlade R
Blade RBlade R
Blade Remoemo
emoemo
emovv
vv
val fral fr
al fral fr
al from Tom T
om Tom T
om Top Blade Channelop Blade Channel
op Blade Channelop Blade Channel
op Blade Channel

PG 3.2
BLBL
BLBL
BLADE CHANGING PROCEDURE,ADE CHANGING PROCEDURE,
ADE CHANGING PROCEDURE,ADE CHANGING PROCEDURE,
ADE CHANGING PROCEDURE, CONTINUED
CONTINUED
CONTINUEDCONTINUED
CONTINUED
5. Before installing the new blade, check that it measures 1.075" wide including the teeth. Some
blade manufacturers supply blades that measure 1" including the teeth. In this case you may not be
able to adjust the head down limit switch to complete the cut.
6. Your new blade will be in a coil. While wearing gloves, hold the blade away from yourself, twist
the blade to uncoil it. Do not let the blade teeth bounce on the concrete floor as some damage may
be caused.
7. Place the new blade in the carbide guides and then slide the blade over the wheels. The teeth
should be pointing towards the drive side as they pass through the carbide guides.
8. With the blade in place, turn the tensioner handle clockwise until the large black washer
contacts the stop bolt as shown on the previous page. This will set the blade tension correctly.
9. With the blade tension set, turn the two carbide locking handles clockwise to the locked position.
Jog the blade a few rotations to check that the blade is not moving in or out on the blade wheels.
9A..
..
. As the blade tracking will stay fairly constant, it should be checked occasionally as shown on
the drive wheel tracking photo below. The blade teeth should protrude from .185" to .200" from the
face of the blade wheels. If the tracking requires adjustment, follow the instructions below.
BLBL
BLBL
BLADE TRAADE TRA
ADE TRAADE TRA
ADE TRACKING ADJUSTMENTCKING ADJUSTMENT
CKING ADJUSTMENTCKING ADJUSTMENT
CKING ADJUSTMENT
10. First, inspect the blade wheels for wear or damage and repair as required. Blade tracking
adjustment should always begin at the wheel where the tracking is farthest out of specification .
Using the instructions below, adjust the worst wheel, jog the blade and recheck both wheels.
Repeat this process until both wheels are within specification.
10A. Idler Wheel Adjustment. -- On the blade tensioner slide assembly, there are three 9/16" hex
head bolts. Loosen the two bolts at the left end by 1/4 turn. Loosen the single bolt at the right side
of the slide assembly by 1/2 turn. In the two holes above and below this bolt are two 3/16" allen
key set screws. Turn both set screws 1/4 turn and tighten the hex bolt at the right, then the two
bolts at the left. Turning the set screws clockwise will pull the blade on to the wheel, and turning
counter clockwise will push the blade off the wheel. Each 1/4 turn will move the blade
approximately .02". There is also a single set screw at the left end of the slider. Turning it clockwise
will push the blade off the wheel.
ChecChec
ChecChec
Checkk
kk
king the bing the b
ing the bing the b
ing the blade trlade tr
lade trlade tr
lade tracac
acac
ackk
kk
king with a callipering with a calliper
ing with a callipering with a calliper
ing with a calliper..
..
.Idler wheel trIdler wheel tr
Idler wheel trIdler wheel tr
Idler wheel tracac
acac
ackk
kk
king set scring set scr
ing set scring set scr
ing set scree
ee
ews & hews & he
ws & hews & he
ws & hex boltsx bolts
x boltsx bolts
x bolts
ff
ff
found on the slide assembound on the slide assemb
ound on the slide assembound on the slide assemb
ound on the slide assemblyly
lyly
ly..
..
.

PG 3.3
BLBL
BLBL
BLADE TRAADE TRA
ADE TRAADE TRA
ADE TRACKING ADJUSTMENTCKING ADJUSTMENT
CKING ADJUSTMENTCKING ADJUSTMENT
CKING ADJUSTMENT,,
,,
, CONTINUEDCONTINUED
CONTINUEDCONTINUED
CONTINUED
10B. Drive Wheel Adjustment. -- On the wall behind the drive wheel are two adjusting bolt
assemblies and two hex bolts. Loosen all four of them with a 3/4" socket and turn the larger hex
head bolts 1/4 turn with a 1 1/8" socket and extension and then tighten the two bolts in the
assemblies, then tighten the two hex bolts et the left. Turning the 1 1/8" bolts clockwise will pull
the blade on to the wheel and turning counter clockwise will push the blade off. Each 1/4 turn
will move the blade approximately .02".
DrivDriv
DrivDriv
Drive wheel tre wheel tr
e wheel tre wheel tr
e wheel tracac
acac
ackk
kk
kinging
inging
ing
bolt assembbolt assemb
bolt assembbolt assemb
bolt assemblieslies
lieslies
lies..
..
.
11. Check the blade brush adjustment (Pg 3.4) to be sure the blade is being cleaned properly.
BLBL
BLBL
BLADE GUIDE ADJUSTMENTADE GUIDE ADJUSTMENT
ADE GUIDE ADJUSTMENTADE GUIDE ADJUSTMENT
ADE GUIDE ADJUSTMENT
At the bottom of the guide arms are the carbide blade guide assemblies, the photo below shows
the carbide locking handle. These assemblies will need to be adjusted occasionally as the carbide pads
become worn. To adjust properly, follow this simple procedure. Loosen the hex nut on the locking handle
with a 9/16 wrench and turn the handle clockwise until it rests against the coolant tap on the idler guide
arm or the roll pin on the drive guide arm. Turn the set screw clock wise with a 3/16 allen key until tight
and then loosen 1/8 of a turn and tighten the hex nut. This should put just enough pressure on the blade
to permit you to push the blade down approximately 1/8".
Idler guide arm carbideIdler guide arm carbide
Idler guide arm carbideIdler guide arm carbide
Idler guide arm carbide
locloc
locloc
lockk
kk
king handle in theing handle in the
ing handle in theing handle in the
ing handle in the
locloc
locloc
lockk
kk
ked position.ed position.
ed position.ed position.
ed position.

PG 3.4
ANGLE BRAKE ADJUSTMENTANGLE BRAKE ADJUSTMENT
ANGLE BRAKE ADJUSTMENTANGLE BRAKE ADJUSTMENT
ANGLE BRAKE ADJUSTMENT
The clamping force on the swivel brake can be adjusted to ensure that the Head is held securely
and does not move during cutting. The brake handle should be adjusted so that it does not "bottom out"
or hit it's movement limit, yet holds the head securely.
AngAng
AngAng
Angle Brle Br
le Brle Br
le Brakak
akak
ake Adjustment Scre Adjustment Scr
e Adjustment Scre Adjustment Scr
e Adjustment Scree
ee
ewsws
wsws
ws
ANGLE BRAKE ADJUSTMENT PROCEDUREANGLE BRAKE ADJUSTMENT PROCEDURE
ANGLE BRAKE ADJUSTMENT PROCEDUREANGLE BRAKE ADJUSTMENT PROCEDURE
ANGLE BRAKE ADJUSTMENT PROCEDURE
STEP 1 Loosen locking cap screws "B" with a 1/4 allen key.
STEP 2 Tighten all 4 set screws "A" until snug with a 5/32" allen key.
STEP 3 Back out the "A" screws 1/4 of a turn.
STEP 4 Tighten the locking cap screws "B".
STEP 5 Swing the head to 45 degrees and back to ensure that the head moves freely and
does not bind on the pivot surfaces. Continue to step 6 if necessary.
STEP 6 Adjust the clamping force bolt "C" with a 3/4" wrench. If not tightened enough, the
locking handle will "bottom out" and not hold the head firmly.
BLBL
BLBL
BLADE BRADE BR
ADE BRADE BR
ADE BRUSH ADJUSTMENTUSH ADJUSTMENT
USH ADJUSTMENTUSH ADJUSTMENT
USH ADJUSTMENT
The S-20 Series II leaves the factory with the blade brush adjusted for maximum life of the brush.
This setting places the ends of the blade brush wires so as to contact the blade at the bottom of the
blade gullets. The plastic drive wheel that is driven by the drive wheel face should be held against the
blade face with the minimum force that is necessary. As the blade brush wears it is necessary to
periodically adjust it closer to the blade or if a new brush is installed, further away from the blade.
As shown below, there are two springs on socket head screws holding the brush assembly against
the blade. There is also an adjusting socket set screw with a hex nut on it. Loosen the hex nut with a 9/16"
wrench and turn the set screw counter clockwise with a 3/16" allen key. This will move the brush closer to
the blade. Adjust the set screw so that the brush cleans to the bottom of the blade gullets and tighten the
hex nut.
Blade brBlade br
Blade brBlade br
Blade brushush
ushush
ush
adjusting scradjusting scr
adjusting scradjusting scr
adjusting scree
ee
eww
ww
w..
..
.
CC
CC
C
BB
BB
B
AA
AA
A