Hyd-Mech S-25A User manual

P.O.BOX1087/WOODSTOCK,ONTARION4S8P6·PHONE[phone]/FAX[phone]
HYD-MECH
DearCustomer,
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 in-
creaseyourproductionandconsequentlyreduceyourcost,whilemaintainingorimprovingquality.
With these points clearly in mind we have designed the HYD-MECH S-25A. Our goal is to change stock cut-
offfrom a "necessary evil" to a money making and time savingpart of your operation.
Pleaseuse this manual to familiarizeyourselfandyour employees on the properoperationandmaintenance of
the S-25A.
We appreciate the confidence you have shown in our product and wish you every success in its use.
Sincerely,
HYD-MECHENGINEERINGLTD.
Stan Jasinski, P. Eng.,
President
PRINTED IN CANADA 1995

THIS PAGE INTENTIONALLY LEFT BLANK

TABLE OF CONTENTS
SECTION 1 - INSTALLATION
Safety......................................................................................................................................... 1.1
Lifting and Shipping.................................................................................................................... 1.1
Vise Cylinders............................................................................................................................. 1.2
Head Restraint Bar..................................................................................................................... 1.3
Leveling..................................................................................................................................... 1.3
Wiring Connections.................................................................................................................... 1.4
Hydraulic Oil and Cutting Fluid................................................................................................... 1.4
SECTION 2 - CONTROLS AND OPERATIONS
SUBSECTION 2A - The Control Console........................................................................................... 2.1
Start-up...................................................................................................................................... 2.1
S25 Manual Controls.................................................................................................................. 2.1
Shuttle Length Control................................................................................................................ 2.5
Conventional Length Control Set-up and Calibration................................................................... 2.5
S25 Automatic Controls (PLC 100)............................................................................................. 2.6
Blade Kerf......................................................................................................................... 2.6
PLC in Manual Mode ....................................................................................................... 2.7
PLC in Auto Mode - Single Job......................................................................................... 2.8
PLC in Auto Mode - Multi Job............................................................................................ 2.9
Important Notes With Respect To PLC Operation............................................................. 2.10
Interrupting the Auto Cycle...................................................................................... 2.10
Entering Blade Kerf................................................................................................. 2.11
Inch-Metric Input or Measuring................................................................................ 2.11
SUBSECTION 2B - Saw Cutting Controls........................................................................................... 2.12
Blade Basics............................................................................................................................... 2.12
Variable Speed Control............................................................................................................... 2.13
Hydraulic Feed Control............................................................................................................... 2.13
Using The Saw Cutting Parameters Door Chart........................................................................... 2.14
Step 1 Determine Effective MAterial Width....................................................................... 2.14
Step 2 Setting The Feed Force Limit................................................................................. 2.15
Step 3 Determine Optimum Blade Pitch............................................................................ 2.16
Step 4 Determine Optimum Blade Speed.......................................................................... 2.17
Step 5 Determine Feed Rate Setting................................................................................. 2.18
Cutting Control Set Up Examples................................................................................................ 2.20
SUBSECTION 2C - Mechanical Controls............................................................................................ 2.22
Head Up And Down Limit Setting................................................................................................ 2.22
Guide Arm Positioning................................................................................................................ 2.23
Coolant Flow.............................................................................................................................. 2.23
Blade Changing.......................................................................................................................... 2.24
SECTION 3 - MAINTENANCE AND TROUBLESHOOTING
Blade Brush................................................................................................................................ 3.1
Blade Guides.............................................................................................................................. 3.1
Lubrication............................................................................................................................... 3.2
Cleanliness................................................................................................................................. 3.3
Hydraulic Maintenance................................................................................................................ 3.3
Trouble Shooting......................................................................................................................... 3.4

SECTION 4 - ELECTRICAL SYSTEM
General Information.................................................................................................................... 4.1
Photos of Standard Electrical Components................................................................................. 4.1
Photos of Optional Electrical Components.................................................................................. 4.3
List of Electrical Components For An S-25A With the Optioanl PLC100.................................... 4.4
List of Electrical Components For A Standard S-25A.................................................................. 4.7
Standard Electrical Schematic S25-7-00-1.......................................................... 4.12
Standard Electrical Wiring Diagram S25-70-02 pg.1............................................... .... 4.13
Wiring Diagram S25-70-02 pg. 2 ................................................. 4.14
Wiring Diagram ( Contol Box) S25-70-02 pg.3.................................................... 4.15
Electrical Schematic (PLC Option) S25A-7-00-1A ..................................................... 4.16
Electrical Wiring Diagram PLC S25A-7-00-2A pg.1 ............................................. 4.17
Electical Wiring Diagram PLC (Control Box) S25A-7-00-2A2 pg.2 ........................................... 4.18
SECTION 5 - HYDRAULIC SYSTEM
General Information.................................................................................................................... 5.1
Parts List and Photos of Hydraulic Components.......................................................................... 5.1
Cylinder Components .................................................................................................................. 5.2
Positive Downfeed Valve Components ...................................................................................... 5.3
Hydraulic Schematic S25A-6-00-1 ...................................................... 5.4
Hydraulic Plumbing Diagram S25A-6-00-2 ....................................................... 5.5
Plumbing Diagram (VVP Option) S25A-6-00-2....................................................... 5.6
SECTION 6 - MECHANICAL ASSEMBLIES
Parts List and Photos:
Blade Guide Arm Assembly........................................................................................................ 6.1
Guide Arm Rack Assembly......................................................................................................... 6.2
Blade Brush Assembly................................................................................................................ 6.3
Drive Assembly.......................................................................................................................... 6.4
Idler Wheel Assembly................................................................................................................. 6.5
Vise Cylinder Mounting Assembly............................................................................................... 6.6
Front Table Assembly ................................................................................................................ 6.7
Gearbox Assembly.................................................................................................................... 6.8
Auxiliary Table Assembly............................................................................................................ 6.9
Shuttle Guide Assembly.............................................................................................................. 6.10
Infeed Conveyor assembly......................................................................................................... 6.11
Pivot Link Assembly.................................................................................................................. 6.12
Head Swing Assembly............................................................................................................... 6.13
Coolant System Assembly.......................................................................................................... 6.14
Outfeed Table Assembly............................................................................................................. 6.15
Length Control Assembly............................................................................................................ 6.16
SECTION 7 - OPTIONAL SAW EQUIPMENT
Overhead Bundling Attachment.................................................................................................. 7.1
Variable Vise Pressure................................................................................................................ 7.2
Blade Breakage Switch............................................................................................................... 7.3
Out of Stock Limit Switch............................................................................................................ 7.4
Remote Blade Speed Adjustment............................................................................................... 7.5
SECTION 8 - SPECIFICATIONS
Specification List........................................................................................................................ 8.1
Dimensional Drawings................................................................................................................ 8.2
SECTION 9 - WARRANTY
Warranty..................................................................................................................................... 9.1

SECTION 1 - INSTALLATION
SAFETY
All safety precautions must be observed during installation, operation, maintenance or repair work on the
S-25Abandsawmachine.
-Inspectthe machine throughout before powerhook-up. Specialattention should be paid to electricaland
hydraulic systems keeping an eye out for any potential shipping damage.
-Powerhook-upshouldbeperformedbyqualifiedpersonnel.
-Machine should be used according to its specifications.
-Longhair, loose clothing, gloves, should not be worn while operating the machine.
-Stock must not be loaded while blade is running.
-Machineshould not be operated unless all guards, coversanddoorsare in place and
closed.
-Long and heavy stock should be supported in where it extends off the saw table.
-Area around the machine should be kept clean and tidy.
-Operator should keep a safe distance from all moving parts especially the blade and vises.
-If not performing properly the machine should be stopped immediately and repaired by a qualified person.
-NomodificationstothemachineareallowedwithoutHyd-Mech’spriorapproval.Anyapprovedmodifications
shall be performed by trained personnel.
LIFTINGANDSHIPPING
Tolift the S-25 bandsawan overhead crane witha“T” shaped lifting harnessshouldbe used Fig.1-1Aand Fig.
1-2A. Hook the lifting harness to a chain shackle on the infeed base 'A' and to chain shackles on both sides of
the saw base 'B'. An experianced rigger should select the rigging based on the 7300 LB. weight of the saw.
WARNING: Under no circumstances should the lifting harness be pushing against any part of the saw.
B
B
A
Fig. 1-2AFig. 1-1A
1.1

HOSE # HOSETOCYLINDER CONNECTINGHOSE
CONNECTION ATJUNCTIONBLOCK
34 RODEND(FRONTVISE) 32
33 PISTONEND 31
24 RODEND(SHUTTLEVISE) 22
23 PISTONEND 21
34C RODEND(AUX.VISE) 32C
33C PISTON 31C
TABLE 1
1.2
Fig. 1-4 Reassembled vises.
Fig. 1-3 Vises disassembled for shipping.
Fig. 1-5 Junction block plumed for shipping. Fig. 1-6 Vise cylinder plumed to junction block.
VISECYLINDERS
To permit the S-25A to be shipped in a standard trailer, the three vise cylinders must be fully retracted, the
hydraulichoses disconnected, and the mounting brackets unbolted fromtheinfeedtable Fig. 1-3. The cylinder
tube is then rotated around the cylinder rod so that the mounting bracket and tube are upside-down. This jaw
is now pushed completely toward the fixed jaw letting the bracket rest on the infeed table. Before the initial
start-up, reinstall the vise bracket and reconnect the vise cylinder hoses Fig. 1-4. TABLE 1 lists the hose
reconnections, Fig 1-5 shows one of the junction blocks as it appears when machine is shipped. Fig. 1-6
showsa junction blockafterthe vise cylinder hoseshavebeen reconnected.

HEAD RESTRAINT BAR
The S-25A bandsaw is shipped with the head secured at the 45° position by a restraint bar and is wired down
to the base to ensure that the head can not move in any direction during shipping. After the saw has been lifted
into position, the head restraint bar must be removed along with the wire.
1.3
Fig. 1-7 Head restraint member and tie down wire.
LEVELLING
Machinelocationshould be carefully selected. A flat concrete floor area should be chosen. It should have
enoughfreespacesurroundingthemachinetoenablefreeaccessforsafeoperationandmaintenance.
Machine should be levelled in both directions ie. across its table and along its infeed conveyor especially when
machine is to be inserted into a large conveyor system.
Ninelevelling screws areprovided. Steel platesareto beplacedunder each screwtoprevent theirsinkinginto
theconcretefloor. Incaseswhenmachineis tobeanchoredpermanently,anchoring holesareprovided.They
are located next to the levelling screws.
NOTE: In some cases levelling the saw infeed and auxiliary conveyors with a slight slope towards the blade is
recommended.This will preventcoolantfrom running down theraw stock. (This isespeciallytrue when cutting
tubingorbundles).
Fig. 1-8 Level the saw using a precision level.

HYDRAULICOILANDCUTTINGFLUID
The S-25A bandsaw is supplied with Valvoline 150-46 hydraulic oil. If it is necessary to change the oil to a
differentbrandseetheHYDRAULICSECTIONforanequivalentgradeoil.
No cutting fluid 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 the manufacturer.
WIRINGCONNECTIONS
Afterthemachineis levelledand anchoredthe necessarypower hook-upneeds tobe performed.Inorderto
providesafeoperationas wellasto preventpotentialdamagetothemachine,onlyqualifiedpersonnelshould
make the connections.
BEFORESTART-UPTHEFOLLOWINGTWOPOINTSSHOULDBECHECKEDFOR
-signs of damage that may have occurred during shipping to the electrical cables and the hydraulic hoses.
-thehydraulicoil level is between the upper and lower lines on the level gauge (see SECTION 3 pg. 3.4).
As supplied, the machine is set to run on three phase voltage as indicated on the serial plate and voltage
label.
Power connection to the machine is made to L1, L2, L3 terminals at the junction block inside the control box
Fig.1-9. During the initial hook-up it is very important to check that the phase order is correct. This is indicated
by the hydraulic pressure gauge registering a pressure rise Fig. 1-10 and the blade running in a counter
clockwise direction. If the hydraulics do not register an immediate pressure rise, shut the hydraulics off and
changethephaseorder.
ATTENTION:Runningthehydraulics"backwards"candamagethehydraulicpump.
1.4
Fig. 1-9 Electrical junction block.
L1, L2, L3
Terminals
GroundClamp
Fig. 1-10 System pressure gauge.

SUBSECTION2A-CONTROLSANDOPERATIONS
THECONTROLCONSOLE
START-UP
The S-25A control console has been designed to simplify the operation of the saw, to give the operator the
ability to stop any function at any time, and to be able to control all the functions remotely. (See Fig. 2A-1)
We can not overstress the importance of familiarizing yourself with the controls of the S-25A prior to starting
themachine.
NOTE:WHENSTARTINGTHES-25AFORTHEFIRSTTIME MAKESURE THATTHEMODESELECTOR
SWITCHISINIT'S NEUTRAL POSITION,THEBLADEISRUNNINGINA COUNTERCLOCKWISE
DIRECTION,ANDTHATTHEHYDRAULICPRESSUREIS 900PSI ±25PSI(seeSECTION3
pg. 3.4).
Fig. 2A-1 Standard S-25A operation control panel.
S-25A MANUAL CONTROLS
HYDRAULICSTARTBUTTON: StartshydraulicpumpmotorandenergizestheBLADESTARTBUTTON
andtheMODESWITCH.
The fixed vise will open or close according to its selector switch position.
Theactionsofallotherfunctionsaredependent upontheMODESWITCH
position.(seeMODESWITCH)
BLADEMOTOR This button is only operative when the hydraulic system has been
STARTBUTTON: started. Momentarily depressing this button will start the blade
motor.
BLADEMOTOR Momentarily depressing this button will stop the blade motor.
STOPBUTTON:
2.1

EMERGENCYSTOP This button will stop both the hydraulic and blade motors and
BUTTON: de-energizestheMODESWITCH.
The head and shuttle motion will cease.
The vises will remain as they are, but if closed, they will gradually
lose gripping force. For this reason all long stock should be
supported so that in this eventuality, it will not fall.
HYDRAULICANDBLADE Bothofthedrivemotorsareprotectedbyindividualoverloadrelays.
MOTORRESETBUTTONS: Ifamotordrawsexcessiveamperage,thecorrespondingrelaywill
open and the entire machine will shut down as if the EMERGENCY
STOP buttonhadbeen pressed.
DepressingthecorrespondingRESETbuttonwillclosetheopened
contactoroverloadand allow the machine to be restarted.
MODESWITCH: Hasthreepositions,MANUAL,NEUTRAL,andAUTO
MANUAL: in manual all the following functions except the HEAD
SWING CONTROLS and the AUTO CYCLE DIAL,
are operative.
NEUTRAL:onlytheFIXEDVISESWITCH,theCOOLANTSWITCH
and the HEAD SWING CONTROLS are operative.
AUTO: all of the functions are under the control of the AUTO
CYCLE DIAL, and the MANUAL CONTROL switches
are inoperative.
HEADCONTROLSWITCH: InoperativeunlessMODESWITCHisinMANUAL.
UP: the head will rise until it reaches the HEAD UP LIMIT SWITCH
SETTING.
HOLD:the headwill remainstationary.
DOWN: the head will descend until it reaches the bottom. Descent
is controlled by the FEED RATE and FEED FORCE
controls.
INDEXFORWARDBUTTON: Button is inoperative except when MODE SWITCH is in MANUAL.
Depressing this button fully will cause the shuttle table to quickly
advance toward the saw table until the button is released or the
shuttlereachestheforwardlimitoftravel.
Depressing this button partially will cause the shuttle table to
advance toward the saw table at a very slow rate until the button is
releasedortheshuttlereaches the forward limit of travel. This
control is intended to assist in the accurate positioning of heavy
pieces of stock.
INDEXREVERSEBUTTON: Button is inoperative except when MODE SWITCH is in MANUAL.
Depressing this button fully will cause the shuttle table to quickly
retract away from the saw table until the button is released or the
shuttlereachesthe rearwardlimitoftravel.
Depressing this button partially will cause the shuttle table to retract
away from the saw table at a very slow rate until the button is
releasedortheshuttle reaches the rearward limit of travel. This
control is intended to assist in the accurate positioning of heavy
pieces of stock.
INDEXVISESWITCH: This switch is only operative when the MODE SWITCH is in
MANUAL. It operates in the same manner as the FIXED VISE
SWITCH but controls the vise mounted on the shuttle table.
2.2