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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...
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.
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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.
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.
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.
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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.
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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.
§ 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.
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§ 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.
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. §...
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.
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 §...
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.
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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.
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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.
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)&...
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;...
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(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...
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”...
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.
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”...
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.
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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.
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).
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.
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...
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. §...
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 §...
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.
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.
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.
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.
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.
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...
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.
§ 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.
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.
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.
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)
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.
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§ 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.
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.
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.
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...
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.
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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.
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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.
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.
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.
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.
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.
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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.
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.
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.
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.
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.
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.
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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.
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.
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.
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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 —...
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.
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”...
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