Hyd-Mech S-23H User manual

IN BANDSAW TECHNOLOGY
OPERATIONS &
MAINTENANCE
MANUAL

S-23HS-23H
S-23HS-23H
S-23H
2001, rev d, 393380
THANKYOU,
On behalf of everyone at HYD.MECH, I would like to thank and congratulate you on your decision to
purchase a HYD.MECH band saw.
Your new machine is now ready to play a key role in increasing the efficiency of your operation, helping you to
reduce cutting costs while boosting quality and productivity.
To ensure you are maximizing the power and versatility of your new HYD.MECH band saw, please take the time
to familiarize yourself and your employees with the correct operation and maintenance procedures as outlined in
this manual.
We sincerely appreciate the confidence you have demonstrated in purchasing our product and look forward to
building a long and mutually beneficial relationship.
Thank-you.
HYD.MECH GROUP LIMITED
P.O. BOX 1030, 1079 Parkinson Road
Woodstock, Ontario Canada, N4S 8A4
Phone: [phone]
Service 1-877-237-0914
Sales 1-800-276-SAWS(7297)
Fax [phone]
e-mail, [e-mail]

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i S23H 2001
S23H Table of Contents
SECTION 1, INSTALLATION
SAFETY PRECAUTIONS ........................................................................................................................................ 1
LIFTING THE S-23H with a FORK LIFT ................................................................................................................... 2
WRAPPED FOR SHIPPING .................................................................................................................................... 2
HYDRAULIC OIL ...................................................................................................................................................... 2
LEVELLING THE SAW ............................................................................................................................................. 3
CUTTING FLUID ...................................................................................................................................................... 3
SPEED ADJUSTOR INSTALLATION ........................................................................................................................ 4
POWER WIRING CONNECTIONS ........................................................................................................................... 4
SECTION 2, CONTROL CONSOLE
OPERATOR CONTROL PANEL ................................................................................................................................ 5
ELECTRICAL CONTROLS ....................................................................................................................................... 5
VISE CONTROLS .................................................................................................................................................... 5
HEAD CONTROLS .................................................................................................................................................. 5
BLADE BASICS ..................................................................................................................................................... 6
DETERMINE OPTIMUM BLADE PITCH .................................................................................................................. 7
BLADE SPEED ADJUSTMENT ............................................................................................................................... 8
HEAD SWING and BREAK ..................................................................................................................................... 8
GUIDE ARM POSITIONING .................................................................................................................................... 9
COOLANT FLOW ..................................................................................................................................................... 9
SECTION 3, MAINTENANCE and TROUBLESHOOTING
BLADE CHANGING PROCEDURE ........................................................................................................................ 11
BLADE TRACKING ADJUSTMENT ....................................................................................................................... 12
BLADE GUIDE ADJUSTMENT .............................................................................................................................. 13
BLADE BRUSH ADJUSTMENT ............................................................................................................................. 13
ANGLE BRAKE ADJUSTMENT and PROCEDURE ............................................................................................... 14
DRIVE BELT REPLACEMENT .............................................................................................................................. 14
HEAD DOWN LIMIT SWITCH ................................................................................................................................ 14
LUBRICATION ....................................................................................................................................................... 15
TROUBLE SHOOTING GUIDE .............................................................................................................................. 16
SERVICE RECORD & NOTES ............................................................................................................................... 17
SECTION 4, ELECTRICAL SYSTEM
CONTROL PANEL & COMPONENTS .................................................................................................................... 19
ELECTRICAL COMPONENTS LISTS .................................................................................................................... 20
ELECTRICAL SCHEMATIC and WIRING DRAWINGS ........................................................................................... 23
SECTION 5 , HYDRAULIC SYSTEM
HYDRAULIC COMPONENTS ................................................................................................................................. 27
CYLINDER ASSEMBLIES ..................................................................................................................................... 28
Gland assemblies ............................................................................................................................................. 28
Piston assemblies ............................................................................................................................................ 28
HYDRAULIC SCHEMATIC and PLUMBING DIAGRAM .......................................................................................... 29
---- Continued ----

ii S23H 2001
SECTION 6, MECHANICAL ASSEMBLIES
GUIDE ARM & CARBIDE ASSEMBLIES .............................................................................................................. 31
BLADE DRIVE ASSEMBLY ................................................................................................................................... 32
SPEED ADJUSTOR INSTALLATION ...................................................................................................................... 33
HM4A GEAR BOX ASSEMBLY ............................................................................................................................. 34
IDLER WHEEL ASSEMBLY ................................................................................................................................... 35
BLADE BRUSH ASSEMBLY .................................................................................................................................. 36
COUNTER BALANCE SPRINGASSEMBLY ........................................................................................................... 37
PIVOT LINK ASSEMBLY ....................................................................................................................................... 38
FRONT VISE ASSEMBLY ..................................................................................................................................... 40
HYDRAULIC POWER PACK .................................................................................................................................. 41
COOLANT GROUP ................................................................................................................................................ 42
DOORS and COVERS ........................................................................................................................................... 43
SECTION 7, OPTIONAL ASSEMBLIES
WORK STOP ......................................................................................................................................................... 45
OVER HEAD BUNDLING ....................................................................................................................................... 46
BLADE BREAKAGE .............................................................................................................................................. 47
WORK LAMP ASSEMBLY ..................................................................................................................................... 47
30OMITRE CUTTING ............................................................................................................................................ 48
SECTION 8, SPECIFICATIONS
SPECIFICATION LIST .......................................................................................................................................... 49
LAYOUT DRAWINGS ............................................................................................................................................. 50
SECTION 9, WARRANTY
WARRANTY ........................................................................................................................................................... 53

SECTION 1 - INSTALLATION
SECTION 1
INSTALLATION

SECTION 1 - INSTALLATION

Pg 1.1 S23H 2001d
SECTION 1, INSTALLATION
Upon delivery of your new S-23H 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 PRECAUTIONS
The S-23H 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-23 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 TOTHE MACHINE ARE PERMITTEDWITHOUT PRIOR APPROVAL FROM HYD-MECH.
ANY APPROVED MODIFICATIONS SHOULD ONLY BE UNDERTAKEN BYTRAINED PERSONNEL.

Pg 1.2 S23H 2001d
LIFTING THE S-23
The S-23 is shipped with a shipping pallet attached
to the saw. When lifting the pallet with a lift 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.
WRAPPED FOR SHIPPING
The S-23 is shrink-wrapped for shipping from our
plant. Remove the wrapping from around the saw.
Complete the inspection for signs of damage. The
photo shows the floor mounting plates located at the
corners of the saw. Undo the bolts that hold the saw to the pallet. Retain
these bolts to use for levelling. 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.
REMOVING THE SAW FROM SHIPPING SKID
Lift the right (drive) side of the saw as shown with a lift truck and
place two blocks under the saw as shown. With a lift truck (fork
length 5' min, rated for 2000lbs minimum), lift the saw from the skid
at the FRONT of the machine as shown and place it where required.
Lifting the packaged S-20 Series II with a lift truck.
Bolt holding the saw to the skid (4
places).
Blocks placed under the saw.
Lifting the machine with a lift truck from the front
of machine.

Pg 1.3 S23H 2001d
CUTTING FLUID
The S23 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.
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.
Coolant Return (Shown with tank removed)
Wash Down
CoolantCoolant
CoolantCoolant
Coolant
The power pack with the
door opened.
HYDRAULIC OIL
The S-23H option is supplied with Texaco
Rando HD46 hydraulic oil. Substitutes should be a
#46 hydraulic oil. The power pack and tank is
mounted on the inside of the door found at the idler
side of the infeed table. The tank should be at least
3/4 full at all times.
Hydraulic tank
filler cap is
found
near the pump
& motor
assembly.

Pg 1.4 S23H 2001d
SPEED ADJUSTOR INSTALLATION
The speed adjustor is packaged seperately for shipping purpose and must be installed prior to connecting the
power supply. Failure to do so will cause a safety hazard. Refer to page 6.2 for installation instructions.
POWER 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 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, and Ground as
shown below.
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 )
The S-20, with "H" option control panel, opened.
L3
L2
L1
Ground

SECTION 2 - OPERATING INSTRUCTIONS
SECTION 2
OPERATING INSTRUCTIONS

SECTION 2 - OPERATING INSTRUCTIONS

Pg 2.5 S23Hb
SECTION 2, CONTROL CONSOLE
OPERATOR CONTROL PANEL
The operator control panel provides the operator with all the controls necessary to operate the saw after the
cutting angle has been set and the stock has been loaded and secured. All of the electrical functions are
operated from the control panel. The Vise and Feed Rate setting are both controled with the hydraulic controls
shown on the next page.
ELECTRICAL CONTROLS
HYDRAULIC
This button will start the hydraulic
START Button, system. It will
illuminate when pressed and held
momentarily.
EMERGENCY
Pressing the red EMERGENCY STOP
Button STOP Button will turn OFF all
machine functions with the exception of
the coolant if the selector switch is in
the WASH position.
BLADE SWITCH
This selector switch starts and
stops the saw blade. The blade will
not start with the Head in the down
position.
COOLANT SWITCH
OFF : No coolant flow.
ON : Coolant flow when
blade is running.
WASH : Constant flow.
HEAD CONTROLS
UP The head will rise as long as the
lever is pushed up.
HOLD The head will stay at it's
current position when the lever is in this
position.
DOWN The Head will descend at set
Feed Rate.
FEED RATE The speed at which the
head will descend can be set on the
scale of 1 to 10. As the number
increases so does feed rate.
VISE CONTROLS
OPEN The vise will open when
the lever is pushed up.
HOLD The vise will hold it's
position when the lever is in the
center position.
CLOSE The vise will close when
the lever is pushed down.

Pg 2.6 S23Hb
BLADE BASICS
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 3/4 or 4/6
bi-metal blade supplied with the machine) last much longer, cut faster, and more accurately than the convention-
al 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 new blade must be properly "broken-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. Generous coolant application is essential with almost all materials. 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. The stock being cut must be securely clamped 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. The proper blade speed for the work-piece material must 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. The proper feed rate must be applied. 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 2.7 S23Hb
(
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 2.8 S23Hb
HEAD SWING and BREAK
An integral function of the S-23 is the ability to make
mitred cuts at angles between 90Oand 45O.The Head
swing of the S-23 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 illustrates the Angle
Brake in the locked position at 65 O. To set the saw to the
90Oposition, the Head ( in the fully down position ) is
moved until the frame meets the 90Ostop bolt which is
located in the coolant tray at the drive end of the head.
BLADE SPEED ADJUSTMENT
Blade speed can be adjusted infinitely between 75 to 350 SFM (Surface Feet/Minute) (23 to 106 m/min).
Adjustment should be made only when the blade is running. Clockwise rotation of the knob increases blade speed
while counter clockwise rotation decreases blade speed.
It is recommended to occasionally run the speed adjustor through it’s full range. This will help in maintaining the
pulley system. It is also recommended that if the same speed is used for long periods, then a minor adjustment
should be made,eg; 200 SFM should be run at 190 or 210 SFM for part of the time. This will help in reducing wear
grooves and keep the speed adjustment smooth.
Head Swing Scale and Angle Brake ( Locked )
Blade Speed
Indicator
Blade Speed Adjustor
Handle

Pg 2.9 S23Hb
COOLANT FLOW
The S-23 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.
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.
GUIDE ARM POSITIONING
The S-23 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 pacing the locking handles are
loosened by turning them counter clockwise. 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 tighten the guide arm, the handle is turned clockwise
until the handles are in the Locked position ( 4 to 6 o'clock )
as illustrated in the photo. The carbide locking lever should be
moved to the upright tensioned position.
Coolant Valves on the Guide Arm and Fence.
Guide Arms with Handles Locked ( 4 to 6
O'clock Position ) and Carbide Levers in
Tensioned Position ( Upright )
Carbide Tensioning Levers
Guide Arm Handles

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SECTION 3 - MAINTENANCE AND TROUBLE SHOOTING
SECTION 3
MAINTENANCE AND
TROUBLE SHOOTING