PARTS AND OPERATION MANUAL Multiquip © COPYRIGHT 2001, MULTIQUIP INC. DS-Series DuoScreed Revision #1 (03/06/01) MULTIQUIP INC.. PARTS DEPARTMENT: 18910 WILMINGTON AVE. 800-427-1244 CARSON, CALIFORNIA 90746 FAX: 800-672-7877 SERVICE DEPARTMENT: 310-537-3700 800-421-1244 800-478-1244 FAX: 310-537-3927 FAX: 310-537-4259 E-mail:mq@multiquip.com • www:multiquip.
l PAGE 2 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HERE'S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING PARTS DEPARTMENT 800-427-1244 or 310-537-3700 FAX: 800-672-7877 or 310-637-3284 SERVICE DEPARTMENT/TECHNICAL ASSISTANCE 800-478-1244 or 310-537-3700 FAX: 310- 537-4259 WARRANTY DEPARTMENT 888-661-4279, or 310-661-4279 FAX: 310- 537-1173 MAIN 800-421-1244 or 310-537-3700 FAX: 310-537-3927 DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
TABLE OF CONTENTS Here's How To Get Help ............................................ 3 Table Of Contents ..................................................... 4 Parts Ordering Procedures ....................................... 5 Rules For Safe Operation ...................................... 6-7 Operation and Safety Decals .................................... 8 Specifications ............................................................ 9 General Information ................................................
PARTS ORDERING PROCEDURES n n n n n n n Dealer account number Dealer name and address Shipping address (if different than billing address) Return fax number Applicable model number Quantity, part number and description of each part Specify preferred method of shipment: • • • • UPS Ground UPS Second Day or Third Day* UPS Next Day* Federal Express Priority One (please provide us with your Federal Express account number)* • • Airborne Express* Truck or parcel post *Normally shipped the same day the order
DS-SERIES DUOSCREED — RULES FOR SAFE OPERATION CAUTION: Failure to follow instructions in this manual may lead to serious injury or even death! This equipment is to be operated by trained and qualified personnel only! This equipment is for industrial use only. The following safety guidelines should always be used when operating the DuoScreed GENERAL SAFETY ■ DO NOT operate or service this reading this entire manual. equipment before ■ This equipment should not be operated by persons under 18 years of age.
DS-SERIES DUOSCREED — RULES FOR SAFE OPERATION ■ Always read, understand, and follow procedures in Operator’s Manual before attempting to operate equipment. ■ Always be sure the operator is familiar with proper safety precautions and operations techniques before using DuoScreed. ■ Refer to the HONDA Engine Owner's Manual for engine technical questions or information. ■ NEVER use accessories or attachments, which are not recommended by Multiquip for this equipment.
DS-SERIES DUOSCREED — OPERATION AND SAFETY DECALS Machine Safety Decals The DUOSCREED is equipped with a number of safety decals. These decals are provided for operator safety and maintenance information. The illustrations below shows these decals as they appear on the machine. Should any of these decals become unreadable, replacements can be obtained from your dealer. l PAGE 8 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
DS-SERIES DUOSCREED — SPECIFICATIONS TABLE 1. DUOSCREED SPECIFICATIONS Power Unit Model DS-GPU Number of Vibrations 5,500 v/min Drive System Flexible Shaft Noise (Open Air) 50 dB(A) Vibration Acceleration 1.5 m/sec2 Operating Weight 35 lbs. (16 Kg.) Blade Construction Extruded Aluminum Alloy Blade Widths 4.9, 6.2, 8.2, 9.8, 12.3, 13.9, 16.4, 18.0, 19.6 ft. (1.5, 1.9, 2.5, 3.0, 3.75, 4.25, 5.0, 5.5, 6.0 meters) Blade Weights Approx. 2.8 lb./ft. TABLE 2.
DS-SERIES DUOSCREED — GENERAL INFORMATION Introduction Engine The Whiteman DuoScreed is a hand held vibratory screed designed to strike-off and consolidate concrete slabs. It is comprised of two major components, the power unit (gasoline engine), and the strike-off blade. Generally this screed operates ideally in concrete with a slump of 2 inches or greater. Its applications include patios, driveways, sidewalks and floor slabs. The Whiteman DuoScreed is equipped with an Honda Model GX31SA, 1.
DS-SERIES DUOSCREED — COMPONENTS Figure 2. DuoScreed Components Figure 1 shows the location of the components of the DuoScreed. The function of each component is described below: 1. Oil Cap – Remove this cap to add engine oil. 2. Fuel tank – Remove the fuel tank cap to add unleaded fuel ONLY! DO NOT mix fuel. DO NOT over fill. Tank holds approximately .172 gallons (.65 liters) 3.
DS-SERIES DUOSCREED — COMPONENTS (HONDA GX31SA ENGINE) Figure 2. HONDA GX31SA Components 1. Spark Plug – Provides spark to the ignition system. Set spark plug gap to 0.6 - 0.7 mm (0.024 - 0.028 inch) Clean spark plug once a week. 7. Fuel Tank – Holds .65 liters (approximately .172 gallon) of unleaded gasoline. 8. 2. Muffler – Used to reduce noise and emissions. DO NOT touch muffler while engine is running, let engine cool before performing any maintenance.
DS-SERIES DUOSCREED — ASSEMBLY INSTRUCTIONS Assembly Instructions 3. Determine whether you will be using the DuoScreed on forms or as a wet screed. This will decide how the power unit will be mounted. If the DuoScreed will be used as a wet screed the wing nuts should be located above the smooth edge of the blade. If the DuoScreed will be used on forms (Figure 3) the wing nuts should be located above the curled edge of the blade. 4. Loosen each of the three wing nuts about 1/4 inch (8 mm).
DS-SERIES DUOSCREED — ASSEMBLY INSTRUCTIONS Figure 4. Blade Mounting Diagram 6. Place the front of the power unit over the blade (Figure 3) until the front of the clamp is seated within the front blade collar. 7. Ease the power unit back to allow the rear clamp to seat itself within the rear blade collar. It may be necessary to further loosen the wing nuts to allow the clamp to fit around the blade collar. 8. 9.
DS-SERIES DUOSCREED — ASSEMBLY INSTRUCTIONS Eccentric Weight Adjustment There are two eccentric weights (Figure 6) that are supplied with the DuoScreed. These weights are located inside the eccentric weight compartment, which is located at the bottom of the unit. These weights determine the amount of vibration that will travel down the blade. Depending on the type of blade that is used, will determine the position of the two eccentric weights.
DS-SERIES DUOSCREED — STARTING Engine Pre-Check 1. Fill the fuel tank (Figure 8 ) with unleaded gasoline. DO NOT over fill. Topping-off to filler port is dangerous, as it tends to spill fuel. Wipe up any spilled fuel immediately. 2. Press the priming bulb (Figure 11) repeatedly until fuel can be seen inside the clear plastic bulb. Figure 11. Priming Bulb Location Figure 8. Fuel Tank 1. Place the engine in a level position. 3. Set the engine ON/OFF switch (Figure 12) to the ON position. 2.
DS-SERIES DUOSCREED — APPLICATION/OPERATION Application/Operation 1. Before placing the DuoScreed in concrete for screeding, it is a good idea to apply form oil to the blade and all frame parts that may come in contact with the concrete. This form oil will become useful when cleaning the DuoScreed. Make sure to saturate the unit with a good amount of form oil. 2. Prepare a grid of #5 rebar pins (Figure 14) equally spaced approximately every 9 to 11 feet. If a 10 ft.
DS-SERIES DUOSCREED — APPLICATION/OPERATION 14. Remember to build the bases in long parallel strips across the pins and on the hand floated edges and against plumbing or other outs, leaving the long unfinished areas about 8 or 9 feet wide. Once the bases are built, the workers can more accurately shape the concrete to grade. Figure 15. Throttle Lever NOTE Before placing the DuoScreed in concrete, make certain the unit has been set up (blade) for wet screeding.
DS-SERIES DUOSCREED — APPLICATION/OPERATION 12-18 INCH BASE 12-18 INCH BASE PLACE # 5 REBAR GRADE PINS AND FORM RECTANGULAR GRID. DUOSCREED BLADE POUR CONCRETE AND FORM TO GRADE STEP 7 HORIZONTAL DIRECTION HORIZONTAL DIRECTION VERTICAL DIRECTION STEP 7 HORIZONTAL DIRECTION BLADE OVERLAP 12-18 INCHES STEP 2 DUOSCREED BLADE SET SCREED BLADE DOWN ON UNFINISHED 8 TO 9 FT. WIDE MIDDLE SECTION, PLACING BOTH ENDS OF THE BLADE ON THE 12-18 INCH BASES.
DS-SERIES DUOSCREED — APPLICATION/OPERATION Important Tips to Remember ■ Do not allow the engine to run out of fuel as this may cause problems with starting. Always maintain an extra supply of fuel on the job site. ■ Always keep the DuoScreed moving backwards during operation. Allowing the DuoScreed to vibrate in the same location for too long will cause it to sink into the concrete. ■ When using the DuoScreed with low slump (dry) concrete do not attempt to walk it quickly across the slab.
DS-SERIES DUOSCREED — MAINTENANCE 3. Maintenance CAUTION: DO NOT clean the DuoScreed with a pressure washer. 1. NEVER clean the DuoScreed with the engine running. 2. Allow the engine to cool down before cleaning. Use a low pressure water hose, soft brush, wiping cloth and a mild cleaning detergent and remove all concrete from the DuoScreed. Be careful not to get excessive amounts of water in the engine compartment. 4.
DS-SERIES DUOSCREED — MAINTENANCE Air Cleaner 3. Remove the spark plug with 5/8-inch wrench. 1. The air cleaner element should be cleaned because a clogged air cleaner can cause poor engine starting, lack of power and shorten engine life substantially. 4. 2. Before opening the air cleaner compartment, wipe any dirt or foreign matter from the air cleaner body and cover, using a moist cloth. Be careful to prevent dirt from entering the carburetor 5.
DS-SERIES DUOSCREED — TROUBLESHOOTING TABLE 4. DUOSCREED TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE SOLUTION The centrifugal force of the vibrator is set too low? Adjust the eccentric weights per Figure 7 or increase engine sp e e d . Vibrates insufficient and as a result the There is excessive amounts of concrete concrete floor cannot be leveled and along the leading edge of the blade? smoothed in the proper way. Remove the excessive concrete from the blade.
DS-SERIES DUOSCREED — TROUBLESHOOTING TABLE 5. ENGINE TROUBLESHOOTING SYMPTOM Difficult to star t, "fuel is available, but no SPARK at spark plug". POSSIBLE CAUSE SOLUTION Spark plug bridging? Check gap, insulation or replace spark plug. Carbon deposit on spark plug? Clean or replace spark plug. Shor t circuit due to deficient spark plug insulation? Check spark plug insulation, replace if worn. Improper spark plug gap? Set to proper gap.
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DUOSCREED — EXPLANATION OF CODE IN REMARKS COLUMN How to read the marks and remarks used in this parts book. Items Found In the “Remarks” Column Serial Numbers-Where indicated, this indicates a serial number range (inclusive) where a particular part is used. Model Number-Where indicated, this shows that the corresponding part is utilized only with this specific model number or model number variant.
DUOSCREED — SUGGESTED SPARE PARTS DUOSCREED 1 TO 3 UNITS WITH HONDA GX31SA ENGINE 1 to 3 Units Qty. ........ P/N .............................. Description 2 ............ BF2648 ....................... HANDLE GRIP 1 ............ BF2647 ....................... THROTTLE GRIP 2 ............ BF2645 ....................... THROTTLE CABLE 1 ............ BF2621 ....................... FLEXIBLE SHAFT 1 ............ BF2609 ....................... ECCENTRIC COVER 3 ............ BF2607 .......................
DS-SERIES DUOSCREED — MAIN ASSY. DUO SCREED MAIN ASSY. l PAGE 28 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
DS-SERIES DUOSCREED — MAIN ASSY. DUO SCREED MAIN ASSY. NO. 1 2 3 4 5 PART NO. BF2648 BF2647 BF2633 BF2640A BF2641 5A BF2641 6 BF0201 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 27 28 30 31 32 33 34 BF2642C BF0205 BF2642 BF2645 BF2626 BF2625 BF2621 BF0178 BF0165 BF2632 BF0101 BF0155 BF2611 BF1100000008 BF2619 BF2612 BF2314 BF0125 BF0201 BF2604 BF2610 BF0325 BF2609 BF2602 BF2602A PART NAME QTY.
DS-SERIES DUOSCREED — MAIN ASSY. DUO SCREED MAIN ASSY. l PAGE 30 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
DS-SERIES DUOSCREED — MAIN ASSY. DUO SCREED MAIN ASSY. NO. 35 37 38 39 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 * 59 60 63 64 65 66 67 68 69 71 72 73 74 75 76 PART NO. BF0277 BF0129 BF2614 BF0177 BF2613 BF0175 BF2615A BF2615B BF0229 BF2617 BF2607 BF2605 BF0176 BF2606 BF0285 BF0212 BF0056 BF0124 BF2643A BF2643 BF0283 BF0089 BF2635 BF2649 BF0258 BF0100 BF2635A BF0284 BF2636 BF0261 BF0099 BF2637 BF2644 BF2639 BF2634 PART NAME QTY.
DS-SERIES DUOSCREED — NAME PLATE AND DECALS NAME PLATE AND DECALS. l PAGE 32 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
DS-SERIES DUOSCREED — NAME PLATE AND DECALS NAME PLATE AND DECALS. NO PART NO PART NAME 1 2 3 4 DCL121 DCL122 DECAL, PRESSURE HOSE 1 DECAL, SAFETY 1 PLATE, SERIAL NO. ......................... 1 ............ CONTACT MQ SERVICE DEPT. W/MODEL & S/N DECAL, ALIGNMENT ARROWS ..... 2 KIT, DECAL ....................................... 1 ............ INCLUDES ITEMS W/ * * * DCL140 DCLDS-SERIES QTY. REMARKS * SEE DECAL ILLUSTRATIONS ON PAGE 7. DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — CRANKCASE ASSY. CRANKCASE ASSY. l PAGE 34 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — CRANKCASE ASSY. CRANKCASE ASSY. NO. 1 1 2 2 3 3 4 5 * 6 7 8 9 10 * 11 * 12 13 13 14 14 15 16# 16# 17# 17# 18 19 20 21 21 PART NO.
HONDA GX31SA ENGINE — CAMSHAFT ASSY. CAMSHAFT ASSY. l PAGE 36 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — CAMSHAFT ASSY. CAMSHAFT ASSY. NO. 1 2 3 4 5 6 7 8 9 10 11 12 PART NO. 14100ZM3000 14126ZM3000 14410ZM3000 14431ZM3000 14451ZM3000 14711ZM5000 14721ZM3000 14731ZM3003 14751ZM3000 14771ZM3000 41313PL3000 90206ZM3000 PART NAME CAMSHAFT ASSY. ROLLER (5X23.8) ROD, PUSH ARM, VALVE ROCKER PIVOT, ROCKER ARM VALVE, IN. VALVE, EX. LIFTER, VALVE SPRING, VALVE RETAINER, VALVE SPRING ROLLER (4X28) NUT, TAPPET ADJUSTING QTY.
HONDA GX31SA ENGINE — PISTON/CRANKSHAFT ASSY. PISTON CRANKSHAFT ASSY. l PAGE 38 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — PISTON/CRANKSHAFT ASSY. PISTON CRANKSHAFT ASSY. NO. 1 2 * 3 * 4 4 5 6 6 PART NO. 13010ZM5000 13101ZM5000 13111ZM5000 13310ZM5000 13310ZM5020 91213ZM3003 91213ZM3003 91214ZM3003 PART NAME RING SET, PISTON PISTON PIN, PISTON CRANKSHAFT COMP. CRANKSHAFT COMP. OIL SEAL (12X25X6) OIL SEAL (12X25X6) OIL SEAL (15X25X6) QTY.
HONDA GX31SA ENGINE — CARBURETOR ASSY. CARBURETOR ASSY. l PAGE 40 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — CARBURETOR ASSY. CARBURETOR ASSY. NO. 1 * 2 * 4 * 5 * 6 * 7 * 8# * 9# * 10# * 11# * 12# * 13# * 14 * 15 * 16 * 17 * 18 * 19 * 20 * 21 * 22 * 24 25 26 27 28 29 30 31 32 33 34 * 34 * 34 * PART NO.
HONDA GX31SA ENGINE — RECOIL STARTER ASSY. RECOIL STARTER ASSY. l PAGE 42 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — RECOIL STARTER ASSY. RECOIL STARTER ASSY. NO. 1 2 * 3 * 4 * 5 * 6 7 8 * 9 * 10 * 11 12 * 13 * 14 * PART NO. 28400ZM3003ZA 28414ZM3003 28421ZM3003 28433ZM3003 28442ZM3003 28447ZM3000 28451ZM3003 28459ZM3003 28461ZM3003 28462ZM3003 90005ZM3000 90012ZM3003 91504ZM3003 91505ZM3003 PART NAME QTY. REMARKS RECOIL STARTER ASSY. ............. 1 .......
HONDA GX31SA ENGINE — FLYWHEEL/IGNITION COIL ASSY. FLYWHEEL/IGNITION COIL ASSY. l PAGE 44 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — FLYWHEEL/IGNITION COIL ASSY. FLYWHEEL/IGNITION COIL ASSY. NO. 1 2 3 3 4 5 6 6 7 PART NO. 30500ZM3003 30519ZM3000 31110ZM5003 31110ZM5013 32195ZM3000 934010501600 9405008000 9405010000 9440116120 PART NAME QTY. REMARKS COIL ASSY., IGNITION 1 TUBE A, CORRUGATED (7X18) 1 FLYWHEEL COMP. ...................... 1 ......... USE UP TO SN 1040026 FLYWHEEL COMP. ...................... 1 ......... USE FROM SN 1040027 WIRE, STOP SWITCH 1 BOLT-WASHER (5X16) 2 NUT, FLANGE (8MM) ...................
HONDA GX31SA ENGINE — FUEL TANK ASSY. FUEL TANK ASSY. l PAGE 46 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — FUEL TANK ASSY. FUEL TANK ASSY. NO. 1 2 3 3 3 4 4 5 5 6 7 8 9 10 10 PART NO. 17504ZM3003 17511ZM5003 17532ZM3000 17532ZM3010 17533ZM3000 17561ZM3000 17561ZM3010 17620ZM3023 17620ZM3033 17672ZM3003 17701ZM3003 17702ZM3003 91401ZM3003 17532ZM3000 17533ZM3000 PART NAME QTY. REMARKS GROMMET, FUEL TUBE 1 TANK, FUEL 1 RUBBER, TANK MOUNTING .......... 1 ....... USE UP TO SN 1040026 RUBBER A, TANK MOUNTING ...... 1 ....... USE FROM SN 1040027 RUBBER B, TANK MOUNTING ...... 1 .......
HONDA GX31SA ENGINE — AIR CLEANER ASSY. AIR CLEANER ASSY. l PAGE 48 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — AIR CLEANER ASSY. AIR CLEANER ASSY. NO. 2 3 4 5 6 PART NO. 17211ZM3000 17220ZM3000ZA 17231ZM3000ZA 91503ZM3000 9405005000 PART NAME QTY. REMARKS ELEMENT, AIR CLEANER 1 HOUSING COMP., AIR CLEANER .......... 1 ........... BRIGHT RED COVER, AIR CLEANER ........................... 1 ........... BRIGHT RED COLLAR, AIR CLEANER 2 NUT, FLANGE (5MM) 2 DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — MUFFLER ASSY. MUFFLER ASSY. l PAGE 50 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — MUFFLER ASSY. MUFFLER ASSY. NO. 1 2 3 4 4 5 6 7 8 9 PART NO. 18310ZM3800 18355ZM3801 18515ZM3000 19722ZM3000 19722ZM3810 90004ZM3000 90055ZE1000 938910500800 938940501000 938940501600 PART NAME QTY. REMARKS MUFFLER COMP. 1 ARRESTER ,SPARK 1 GUIDE, AIR EX. 1 INNER COVER, TOP ...................... 1 ....... USE UP TO SN 1007272 INNER COVER, TOP ...................... 1 .......
HONDA GX31SA ENGINE — CLUTCH/FAN COVER ASSY. l PAGE 52 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — CLUTCH/FAN COVER ASSY. CLUTCH/FAN COVER ASSY. NO. 1 2 3 4 5 PART NO. 19611ZM5000 22000ZM5003 22253ZM5003 22254ZM5003 90005ZM3000 PART NAME COVER, FAN CLUTCH ASSY. BOLT, CLUTCH (8MM) WASHER, CLUTCH (8X17) BOLT, FLANGE (5X18) QTY. 1 1 2 2 2 REMARKS DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — ENGINE COVER ASSY. l PAGE 54 — DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
HONDA GX31SA ENGINE — ENGINE COVER ASSY. ENGINE COVER ASSY. NO. 1 2 3 PART NO. 19720ZM3000ZA 90112GK8010 91502ZM3000 PART NAME QTY. REMARKS COVER COMP., TOP *R8* ............. 1 ....... BRIGHT RED BOLT, FLANGE (5X22) 2 COLLAR, TOP COVER 2 DS-SERIES DUOSCREED — PARTS & OPERATION MANUAL — REV.
TERMS AND CONDITIONS OF SALE — PARTS Effective: July 1, 2000 PAYMENT TERMS 4. Terms of payment for parts are net 10 days. FREIGHT POLICY All parts orders will be shipped collect or prepaid with the charges added to the invoice. All shipments are F.O.B. point of origin. Multiquip’s responsibility ceases when a signed manifest has been obtained from the carrier, and any claim for shortage or damage must be settled between the consignee and the carrier. Freight is at the sender’s expense.
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PARTS AND OPERATION MANUAL HERE'S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING PARTS DEPARTMENT 800-427-1244 or 310-537-3700 FAX: 800-672-7877 or 310-637-3284 SERVICE DEPARTMENT/TECHNICAL ASSISTANCE 800-478-1244 or 310-537-3700 FAX: 310- 537-4259 WARRANTY DEPARTMENT 888-661-4279, or 310-661-4279 FAX: 310- 537-1173 MAIN 800-421-1244 or 310-537-3700 FAX: 310-537-3927 Manufactured For Multiquip Inc. by LIEVERS, HOLLAND Bovenkamp 3, 1391 LA Abcoude P.O.