MULTIQUIP SP-6457 TD Operation Manual
MULTIQUIP SP-6457 TD Operation Manual

MULTIQUIP SP-6457 TD Operation Manual

Concrete saw
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SP-6457 TD

Concrete Saw

Operation Manual
Revision #1 (05/09/03)

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Summary of Contents for MULTIQUIP SP-6457 TD

  • Page 1: Concrete Saw

    SP-6457 TD Concrete Saw Operation Manual Revision #1 (05/09/03)
  • Page 2 FOR HELP & INFORMATION CONTACT MULTIQUIP Please have the Model and Serial Number on-hand when calling. MULTIQUIP INC. MAIN 18910 WILMINGTION AVE. (M-F 7AM-5PM) CARSON, CALIFORNIA 90746 (PACIFIC STANDARD TIME) 800-421-1244 or 310-537-3700 800-427-1244 or 310-537-3700 PARTS DEPARTMENT FAX: 800-672-7877 or 310-637-3284...
  • Page 3: Conventions

    Conventions Throughout this manual, the following conventions are used to indicate important information. Text like this presents clarifying information, specific instructions, commentary, sidelights, interesting points information. NOTE Text set off like this indicates that failure to follow directions could result in damage to equipment. CAUTION Text set off like this indicates that failure to follow directions could result in bodily harm or loss of life.
  • Page 4 WARNING CALIFORNIA – Proposition 65 Warning Engine exhaust and some of its constituents, and some dust created by power sanding, sawing, grinding, drilling and other construction activities contain chemicals known to the State of California to cause cancer, birth defects and other reproductive harm.
  • Page 5: Table Of Contents

    ABLE OF ONTENTS ........................3 ONVENTIONS SAFETY..........................7 OPERATION........................19 ......................19 EFORE TARTING & S ............20 NGINE OWER UTTING OWER HEAVE Blade RPM vs Surface Feet Per Minute (SFPM)............22 Stacking Blades for Wide Cuts.................. 24 ..................28 ATER UPPLY AND ONTROL ......................
  • Page 6 MAINTENANCE......................43 ..............43 EMOVABLE UARDS AND CCESS ANELS ..................... 44 ELTS ULLEYS V-Belt Tension......................44 Adjusting BladeShaft Drive Belt Tension..............46 Replacing the BladeShaft Belt: ................. 46 Replacing the Jackshaft Belt ..................46 ..................48 LADESHAFT AINTENANCE BladeShaft Replacement ................... 48 ..............
  • Page 7: Safety

    FOR YOUR SAFETY AND THE SAFETY OF OTHERS! This Owner's Manual has been developed to provide complete instructions for the safe and efficient operation of the Multiquip SP-6457 CONCRETE SAW. For engine maintenance information, please refer to the engine manufacturers’ instructions for data relative to its safe operation.
  • Page 8: Hazard Symbols

    HAZARD SYMBOLS Lethal Exhaust Gases Engine exhaust gases contain poisonous carbon monoxide gas is colorless and odorless, and can cause death if inhaled. NEVER operate this equipment in a confined area or structure that does not provide ample free flow air. Explosive Fuel Motor fuels are highly flammable, and can be dangerous if mishandled.
  • Page 9 Guards and Covers NEVER operate the saw without blade guards and covers in place. Adhere to safety guidelines ANSI American National Standards Institute, OSHA or other applicable local regulations. Rotating Blades Rotating blade can cut and crush. Keep hands and feet clear. Respiratory Hazard ALWAYS wear approved respiratory protection.
  • Page 10 Skin Injection Hazard NEVER use your hand to find hydraulic leaks. Use a piece of wood or cardboard. Hydraulic fluid injected into the skin must be treated by a knowledgeable physician immediately or severe injury or death can occur. Over Speed Conditions NEVER tamper with the factory settings of the engine governor or engine settings.
  • Page 11: Rules For Safe Operation

    § NEVER operate the saw under the influence of drugs or alcohol. § NEVER accessories attachments, which recommended by Multiquip for this equipment. Damage to the equipment and/or injury to user may result. Manufacturer does WARNING not assume responsibility for any accident due to equipment modifications.
  • Page 12 § Before operating the saw, make sure all protective guards are securely in place. Multiquip saws are supplied with a blade guard, collar guard and belt guard. § Whenever necessary, replace operation and safety decals if they become difficult to read.
  • Page 13: General Safety Precautions

    General Safety Precautions § ALWAYS read, understand, follow procedures Operator’s Manual before attempting to operate the equipment. § Be sure the operator is familiar with proper safety precautions and operating techniques before using the saw. § Make sure the operating area is clear before starting the engine. §...
  • Page 14: Blade Safety

    BLADE SAFETY § ALWAYS inspect diamond blades before each use. The blade should exhibit no cracks, dings, or flaws in the steel centered core and/or rim. Center (arbor) hole must be undamaged and true. § Examine blade flanges damage, excessive wear cleanliness before mounting blade.
  • Page 15: Saw Transportation Safety

    SAW TRANSPORTATION SAFETY § Use appropriate lifting equipment to ensure the safe movement of the saw. § DO NOT use the handle bars and/or front pointer as lifting points. § NEVER attempt to tow the untrailered saw behind a vehicle. CAUTION §...
  • Page 16: Machine Operation And Safety Decals

    MACHINE OPERATION AND SAFETY DECALS The Multiquip SP-6457 TD Saw is equipped with a number of operation and safety decals. Should any of these decals become unreadable, replacements can be obtained from your dealer.
  • Page 17 Record these numbers, in case you need to contact Multiquip in the future. Record your ENGINE model, specification number and serial number here: MODEL NO.
  • Page 18 ENGINE SERIAL NUMBERS SERIAL TAG Fig. 2 — Serial Number Locations § The 5/8” blade-mounting bolt on the right side of the saw (as viewed from the operator’s position) has a left hand thread, while the blade-mounting bolt on the left side of the saw has a right hand thread.
  • Page 19: Operation

    PERATION Before Starting Before starting the saw, carefully follow the checklist below: Securely install the Belt Guard (2). Fully slide on the Collar Guard (3). Verify that proper-sized Blade Guard (4) is fully installed on the Blade Guard mounting tab. Confirm the rear and side access panels (5) (6)&...
  • Page 20: Engine Power, Cutting Power & Sheave Size

    RPM) and the speed (RPM) of the Blade Shaft. The diesel engine of the SP-6457 TD runs at 2800 RPM (full load). If 2800 RPM was a desirable Blade Shaft speed for the average conditions in which you work, we would use the same size sheave on the engine shaft and the Blade Shaft;...
  • Page 21 (blade Shaft RPM) for you. The major factors are: diameter of blade(s) you commonly use, and cutting conditions you work under The 4 gear ratios we have designed into the SP-6457 TD 4-speed Blade Shaft are: Gear 1.00 : 1 Gear 1.34 : 1...
  • Page 22: Blade Rpm Vs Surface Feet Per Minute (Sfpm)

    Blade RPM vs. Surface Feet Per Minute (SFPM) When choosing a blade for your cutting conditions, follow the blade manufacturer’s recommendations. Match the blade speed (Blade Shaft RPM) to the recommended blade Surface Feet Per Minute (SFPM). SFPM 16” 18” 20”...
  • Page 23: Installing The Blade

    Installing the Blade The blade can be mounted on either side of the saw to accommodate different cutting jobs. 1. Raise the saw so that the blade will clear the ground when installed. 2. Verify that blade collars are clean and undamaged. 3.
  • Page 24: Stacking Blades For Wide Cuts

    Stacking Blades for Wide Cuts NEVER attempt to stack blades beyond the capacity of the Kits described here. NEVER operate the saw without blade guards in place. WARNING Combining (stacking) blades together to make wide cuts requires an optional Bushing Extension Kit. Kit #18501 allows blade stacking from .375”...
  • Page 25: Installing And Removing The Blade Guard

    Installing and Removing the Blade Guard Blade Guards are “ambidextrous” – that is, they can be installed on either side of the saw. Installing the Blade Guard 1. Slide the Blade Guard Mounting Clip onto the Guard Mounting Tab on the frame.
  • Page 26 Blade Guard Water Supply Verify that the water hose on the saw is connected to the Blade Guard and that the water pipes are pointed into both Blade Collars. Make sure that the 90º outlets of the water tubes point toward the lower portion of the blade collars, aimed at the delivery ports, for proper water delivery to the blade.
  • Page 27: Installing The Collar Guard

    Installing the Collar Guard The Collar Guard protects unused Blade Collars. 1. Slide the Collar Guard (1) onto the Guard Mounting Tab on the frame. 2. Verify that the unused Blade Collar (2) is secured to the Blade Shaft, by tightening the mounting bolt (3).
  • Page 28: Water Supply And Control

    Water Supply and Control § To prevent damage to the impeller of a belt driven water pump, do not run the engine with the water pump switch on, unless the water supply is connected and water is flowing. CAUTION § When storing the saw during freezing weather, blow out the water lines to prevent damage to the water delivery system.
  • Page 29: Control Panel

    Control Panel Ignition Switch Depth Auxiliary Light Engine Status ON-OFF Indicator Switch Switch Indicator Blade shaft Pointer Cable Throttle Engine Voltmeter Tachometer Cam Cleat Tachometer Drive Disengage Operating Depth Instructions Stop Valve Upper Plunge Button Water ON/OFF Control Valve Speed Water Control Flow...
  • Page 30: Handlebars

    Handlebars The handlebars are adjustable to three different angles, for optimum operator control, and can also be slid fully inward for storage. Once handlebars are adjusted, lock them into position by tightening the lock knob on each side. Lock Knob Three operating positions...
  • Page 31: Fueling The Saw

    Fueling the Saw The saw features a 10-gallon, clear, molded plastic fuel tank with a sight gauge, central drain, and shutoff valve. The fuel tank cap is located at the front of the control console. § Be sure the engine is turned off prior to fueling the saw. §...
  • Page 32: Starting And Stopping The Engine

    Starting and Stopping The Engine Do not leave the saw unattended while the engine is running. § Do not start, park, or leave the saw unattended on a slope. § If the saw has an optional water pump, do not run the saw dry §...
  • Page 33: Cold Weather Operation

    Cold Weather Operation Glow Plugs Optional Glow Plugs are installed inside the air intake. In cold weather (low temperatures below 40°F): 1. Rotate the Ignition Switch PAST the ON position to the GLOW PLUG position and HOLD there for 20-40 seconds. 2.
  • Page 34: Pointer Adjustment

    4. If an air compressor is available, blow out the system by applying compressed air to the Water Inlet (see Fig. 10). Pointer Adjustment 1. Lower the front pointer assembly. Adjust the pointer rod (1) by loosening the lock knob (2). Once the pointer rod is set to the cut line, tighten the lock knob.
  • Page 35: Raise - Lower Controls

    Raise — Lower Controls This saw uses a 12-volt hydraulic pump and cylinder to raise and lower the blade. The SP-6457 TD saw has a plunge button and a raise button. Controls are located on the joystick handle. Fig. 16 — Joystick Handle Controls 1.
  • Page 36: Depth

    Setting the Depth Indicator 1. Lower the blade until it just touches the cutting surface. 2. Set the Depth Indicator dial to zero. (The Depth Indicator now accurately indicates how deep the blade is cutting.) Setting the Depth Stop This saw uses a hydraulic Depth Stop to position and lock the blade at the desired cut depth.
  • Page 37: Drive System

    Drive System This saw has a cable-controlled Hydro-Gear hydrostatic powered transaxle with infinite F-N-R speed adjustment via a joystick controller. The saw is designed with locked axle drive, and can travel at speeds up to 300 feet per minute. Drive System Controls The panel-mounted joystick controls FORWARD-NEUTRAL-REVERSE (F-N-R) and infinitely variable speeds in both directions.
  • Page 38: Transaxle

    Transaxle The Hydro-Gear hydrostatic-powered transaxle has no chains, sprockets or open gears to service. There is a simple cable control. The remote filter promotes long life and easy maintenance. Drain Plug Fig. 19 — The Transaxle...
  • Page 39: 4-Speed Bladeshaft

    16” to 48”. See page 21 or visit our web site: www.multiquip.com for additional discussion of the 4-speed Blade Shaft, gears, and sheave ratios. To calculate Blade Shaft speed, assuming a 1:1 ratio between engine and blade shaft input, divide engine speed by the selected ratio.
  • Page 40: Shifting Gears

    § Never shift gears with the engine running. § Before inserting the Shift Wrench, verify that the ignition is OFF. § Disengage the Shift Lock before shifting, and engage the Shift Lock after shifting. WARNING § Remove the Shift Wrench before starting engine. Shifting Gears 1.
  • Page 41: Night Light

    Night Light The night light can be used on either side of the saw, and can be extended and rotated for best illumination of the cutting area. Aim the light, then lock it in position by tightening the lock knobs. The light can be removed for storage by loosening the lock knobs, disconnecting the light cord and sliding the light bar out of the saw.
  • Page 42: Lift Point

    Lift Point The convenient single point for lifting the saw with a hoist is located just in front of the console, between it and the engine. Lift Point Fig. 24 — Lift Point § To avoid possible injury, stay clear of the saw while it is being hoisted.
  • Page 43: Maintenance

    AINTENANCE This saw has many service-saving features, such as fully enclosed oil bath lubricated Blade Shaft bearings, which require no daily lubrication. Level the saw frame surface prior to service to get accurate oil level readings. NOTE Removable Guards and Access Panels For ease of service access, the following guards and panels are removable: Blade Guard (4) Belt Guard (2)
  • Page 44: Belts And Pulleys

    Belts and Pulleys Belt Part Number Blade Shaft Drive Belt (5) Part # 520009 Jackshaft Belt (3) Part # 521012 Transaxle Drive Belt (2) Part# 521004 Part# 521006 Water Pump Option Belts Part# 521008 JackShaft Belt Tensioner Pulley Fig. 26 — Belt Locations V-Belt Tension Ideal V-Belt tension is the lowest tension at which the belt will not slip under peak load conditions.
  • Page 45 § Over-tensioning shortens belt and bearing life. § Keep belts clean of foreign material that may cause slippage. § Make V-Belt inspection a periodic procedure. § Never dress belts, as this can cause premature failure. CAUTION Adjusting Blade Shaft Drive Belt Tension When tightening or loosening drive belts, raise the saw to reduce stress on the tensioning system, and gravity will assist you by pulling the engine backwards slightly.
  • Page 46: Adjusting Bladeshaft Drive Belt Tension

    2. Loosen the jam nut on the Single Point Belt Tension Bolt. Single Point Belt Tension Bolt Jam Nut Fig. 28 — Single Point Belt Tension Bolt 3. Adjust drive belt to the desired tension. DO NOT over tighten. 4. Tighten the Engine Mount Lock Bolt. 5.
  • Page 47: Rotary Belt Tensioner

    Rotary Belt Tensioner The Rotary Belt Tensioner system uses a 3/4”-headed bolt and a 15/16” or 1” nut to set belt tension by positioning an arm between the Tensioner Pulley and the Tensioner Base. Ridges on the Base mark the amount of tension. 1.
  • Page 48: Bladeshaft Maintenance

    Blade Shaft Maintenance The fully enclosed Blade Shaft eliminates most maintenance. However, should the Blade Shaft need service or repair, contact Multiquip for details. Fig. 30 — 4-Speed Blade Shaft Blade Shaft Replacement To assure correct Blade Shaft/Wheel alignment it is recommended that this...
  • Page 49: Blade Collar Removal/Installation

    Blade Collar Removal/Installation Correct removal or installation of the Inner Blade Collar or Flange requires the Collar Puller (option Part Number 18503) shown in Figure 31. Follow instructions closely to prevent injury from flying Blade Collars! Because of the tapered fit between Blade Collar and Blade Shaft, 5-10 tons of force is needed to release the inner collar.
  • Page 50 Installing the Inner Blade Collar 1. Ensure that the tapered portion of the Blade Shaft, and the Inner Blade Collar are perfectly clean and free of burrs or indentations. Clean and repair as necessary 2. Ensure that the Drive Key is in place. 3.
  • Page 51 5. Loosen the Mounting Bolt and remove the Outer Collar and Bushing. 6. Inspect the Inner Collar to ensure the proper seating of the tapered fit. The Inner Collar should be seated between .030” and 0.0” (flush) to the end of the Blade Shaft. Inner Collar Blade Shaft Fig.
  • Page 52: Circuit Breakers

    Circuit Breakers Three thermal circuit breakers are located inside the top of the Console. Remove Panel to access circuit breakers Fig. 34 — Circuit Breaker location Under normal circumstances circuit breakers do not require service; they are automatically re-set when an overload condition is corrected. If a breaker is cycling on/off, locate the cause of the electrical overload and repair as required.
  • Page 53: Lubrication

    Lubrication This saw has five grease fittings on the front axle assembly. Front axle pivot bearings (F1 & F3) Hydraulic lift cylinder ends (F2, and far end of cylinder) Depth Stop Pivot Plate (F4) These fittings are easily accessed by raising the saw half way up, and then lifting the rear of the saw until the blade collars rest on the ground.
  • Page 54: Engine

    Engine The Model SP-6457 TD features a Turbocharged 57 HP Deutz diesel engine. See the engine manual for service details and oil recommendations. Check air filters daily, replace as required. Do Not clean air filters. Check engine oil level daily.
  • Page 55: Pto Drive Maintenance

    PTO Drive Maintenance Disassembly of the PTO Drive and replacement of the PTO Drive Sheave/Bearing Assembly requires the PTO Bearing Puller (P/N 18610). The Sheave/Bearing Assembly is not serviceable and must be replaced as a complete unit. 1. Remove the Drive Belt (see Replacing the Blade Shaft Drive Belt). 2.
  • Page 56 Fig. 38 — PTO Drive Sheave/Bearing Assembly Re-Assembling the PTO Drive 1. Clean and inspect all parts. 2. Use a press to push the new Bearing/Sheave assembly onto the Bearing Support (9) until the bearings contact the shoulder of the Support. 3.
  • Page 57: Replacing The Battery

    Replacing the Battery This saw uses a Group 75, 12-Volt, 1000 cold cranking amp battery. To replace the battery: 1. Remove Engine Guard and Upper Belt Guard. 2. Loosen the Rotary Tensioner and remove the Transaxle Belt. 3. Loosen the two Engine Mount Lock Bolts and the Single Point Belt Tension Bolt.
  • Page 58: Raise-Lower System

    Raise-Lower System This saw uses a 12-volt hydraulic pump and hydraulic cylinder to power the raise-lower system. Level frame prior to service to get an accurate reading. Check oil level daily. Fill the reservoir half to two-thirds full when cold Use 5W-30 premium grade engine oil.
  • Page 59: Joystick Tension Adjustment

    Joystick Tension Adjustment The speed control joystick uses friction adjustment to provide the preferred “feel”: 1. Using a ¼” Allen wrench and 9/16” wrench, loosen both pivot bolts until they can be turned by hand. Pivot #1 only requires a 9/16” wrench, as the Allen nut side is welded in place.
  • Page 60: Hydraulic System Maintenance

    Hydraulic System Maintenance The hydraulic system consists of: § Blade Shaft § Hydraulic Pump § Transaxle § Hydraulic Manifold § Depth Stop Cylinder & Valve § Hydraulic Filter § Lift Cylinder § Oil Fill/ System Vent Routine Maintenance Check oil level daily. Level the saw frame prior to service to get an accurate reading.
  • Page 61: Draining & Filling The Hydraulic System

    Draining & Filling the Hydraulic System To drain the hydraulic system: 1. Remove the drain plug from the bottom of the Blade Shaft housing and the bottom of the Transaxle. Drain Plug Drain Plug Fig. 45 — Hydraulic System Drains 2.
  • Page 62 To fill the hydraulic system: 1. Fully lower the saw. 2. Do not level the saw frame. The 4-Speed Blade Shaft is mounted at a 78° angle to the saw frame. Adjust the level of the saw so that the face of the Blade Shaft housing is at right angles to the ground.
  • Page 63: Bleeding The Depth Stop Cylinder

    Bleeding the Depth Stop Cylinder After changing the hydraulic system oil, or after disturbing the Depth Stop Cylinder plumbing, air may become trapped in the system and cause the Depth Stop Cylinder to work improperly. To remedy the situation, the Depth Stop Cylinder must be bled to remove trapped air.
  • Page 64: Drive Wheel Alignment

    Drive Wheel Alignment Below is the technique recommended for aligning the wheels. Distance X is the same on both sides; the Front Wheel and Blade shaft axles must be at right angles to the frame edge. Distance A is 3/16” (.187”) longer on the right side, so that the saw steers slightly left.
  • Page 65 The drive wheels are aligned by adjusting the entire rear drive assembly: 1. Loosen the Transaxle Attachment Bolts just enough to move the Transaxle — do not completely loosen the bolts. 2. Loosen and tighten the Alignment Jackscrew nuts to move the Transaxle —...
  • Page 66: Specifications

    PECIFICATIONS 57 HP Turbocharged Deutz Diesel, direct injection, air/oil cooling, oil filter and Engine above-frame remote oil drain. Engine Air Cleaner 4-Stage air filtration, pre-cleaner plus cartridge element and safety element. 10 Gallon clear-molded plastic fuel tank with sight gauge, central drain and Fuel Tank shutoff valve.
  • Page 67: Dimensions

    DIMENSIONS Max Length, Handle Bar 71” Extended, Pointer Bar Up Max Length, Handle Bar 50 3/8” Removed, Pointer Bar Up Max Height, Console Top to 33 ½” Surface Max Length, Handle Bar 115” Extended, Pointer Bar Down Max Height 52 ¾” Wheel Base, Front Wheels 19 ¾”...
  • Page 68: 6457 Electrical Schematic

    Q-6457 Electric Diagram All Wire 18 Gauge Unless Noted: Ground Wires Are Black 8 Gauge 8-Ground Fuel Rack-7 SOLENOID /RELAY BROWN Oil Pressure 4-Temperature GREY/WHT 2-D+ Tachometer-1 VIOLET/ORN EMERGENCY BLK/RED STOP GLOW 4 8 3 WHITE PLUG VOLTAGE TACH TACH LOFA FILTER KL 31...
  • Page 69 MULTIQUIP INC. POST OFFICE BOX 6254 CARSON, CA 90749 310-537-3700 • 800-421-1244 FAX: 310-537-3927 E-MAIL: mq@multiquip.com www: multiquip.com Atlanta • Boise • Dallas • Houston • Newark Quebec, Canada • Manchester, UK • Rio De Janiero, BR •...

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