MK8-90 Manual
Contents
1. jee meme pes EN NN CT rears Dx 1 Check all hardware after the first 5 hours of use then follow the maintenance schedule Fluid Levels SYSTEM FLUID VOLUME RECOMMENDED OIL Refer to engine operator owner manual Engine Maintenance Refer to the engine owners manual for maintenance intervals and procedures Engine Speed The engine speed is factory preset according to the speeds listed in the Specifications section Do not tamper with the governor settings The governor establishes safe operating limits that must not be exceeded Cleaning Clean the float machine at the end of each working day to prevent the cement from hardening on the machine Wash the dirty parts with a brush and water Wet the parts exposed to cement with stripping oil never fuel oil Do not oil the rubber moving parts belts etc Reduction Gear Oil Checking the Oil 1 Make sure machine is off 2 Locate the sight gage on the outward side of gearboxes 3 Oil level should be centered in oil sight gage Replacing the Oil 1 Remove the drain plug located under the sight and drain oil Replace drain plug Remove filler plug located above sight gage and fill until the sight gage is half full Refer to Fluid levels on page 6 for type and quantity 4 Replace filler plug Lif2. 2 14 Max Forward Speed Acoustic Level At Drivers Seat Trowel Path 76in 1930 4mm Specifications subject to change without notice OPERATION Introduction MBW equipment is intended for use in very severe applications They are powered by four cycle engines and are available in different sizes and a selection of engines This parts manual contains only standard parts Variations of these parts as well as other special parts are not included Contact your local MBW distributor for assistance in identifying parts not included in this manual Before Starting amp Operating REMEMBER It is the owners responsibility to communicate information on the safe use and proper operation of this unit to the operators Review ALL of the Safety Precautions listed on page 1 of this manual Familiarize yourself with the operation of the machine and confirm that all controls function properly Know how to STOP the machine in case of an emergency Make sure hands feet and clothing are at a safe distance from any moving parts OIL LEVEL Check the oil level in the engine For more information see Lubrication under the respective engine 5 Owners Manual or the Maintenance section of this manual AIR CLEANER Check to ensure element is in good condition and properly installed FUEL SUPPLY The engines on MBW equipment require an automotive grade of clean fre
3. 5 Main 11 Stopping in emergency conditions 5 Tank Assemblies 12 Control Assembly 13 Maintenance 6 Drive Assembly 14 Maintenance Schedule 6 Right Blade and Gearbox Assembly 15 al a Ca of a a RCM on os 6 Left Blade and Gearbox Assembly 16 Engine Maintenance 6 Engine ASSEMDIY saati kn amm canes 17 Engine 5 6 Frame Assembly 18 a d det de Rc e tad cs SORS aa eae 6 Lifting Sling and Cart 19 Reduction Gear 6 20 LMU PP ER E E TP ak 7 WARNING CALIFORNIA PROPOSITION 65 WARNING Engine exhaust and some ofits constituents are known in the state of California to cause cancer birth defects and other reproductive harm SAFETY INFORMATION Introduction This Safety Alert Symbol is used to call attention to items or operations which may be dangerous to those operating or working with this equipment The symbol can be found throughout this manual and on the unit Please read these warnings and cautions along with all decals carefully before attempting to operate the u
4. need to use a bushing kit 4 Use one bushing per blade in hole closest to the spider 5 Mountthe new blades fixing a 5 16 x 1 3 4 bolt in the hole with the bushing and the smallest two of the holes You will now be using three bolts instead of two 6 When the blades have been mounted reposition the float machine on the ground Correct attachment of standard blades Correct attachment of standard blades Replacing The Battery A WARNING A Handle the battery with particular care since it contains acid 1 Remove the battery cover by unhooking the two hooks Remove the negative cable first Remove the battery and replace it with one with the same characteristics 45 Ah Replacing The Belts 1 Changing the belts will be easier if the trowel blades are off the ground This can be done by lifting the machine up and putting blocks under the guard ring to stabilize the unit Loosen belt tensioner jam nut located by engine oil filter Back out belt tensoiner bolt 1 to 2 inches Idler bracket should slide back and belts should be loose If not tap idler bracket back Remove belts by rolling them off the input sheave one at a time Installing new belts 1 Install the replacement belts onto the clutch one ata time and roll them into there respective groove on the input sheave Repeat this process for the remaining two belts Tighten tensioner bolt against idler bracket until belts have appr
5. mbw com MBW UK Ltd Units 2 amp 3 Cochrane Street Bolton BL3 6BN England Phone 01204 387784 Fax 01204 387797 10 Main Assembly Tank Assemblies 12 Control Assembly 13 Drive Assembly oD Right Blade Gearbox Assembly 15 Left Blade and Gearbox Assembly 16 MOTORE KOHLER 2 MOTORE KOHLER ASHP Engine Assembly e C un CROCERA EX COMPLETA CON JNGRASSATORE CROCERA OX COMPLETA LUN INGRASSATURE CROCERA COM INGRASSA Frame Assembly 18 18260 Lifting Sling Accessories WARRANTY MBW warrants each new machine against defects in 8 MBW reserves the right to improve or make product material and workmanship under normal use and changes without incurring any obligation to update service for a period of six 6 months This warranty refit or install the same on machines previously sold commences the first day the machine 15 sold assigned to a rental fleet or otherwise put to first use 9 MBW is not responsible for any liability or damage or injury directly or indirectly from design material The obligation under this warranty is limited to the operation of its products replacement or repair of parts and or machine at MBW factory branches
6. ECTION Wear OSHA specified eye shields safety glasses and sweat bands FOOT PROTECTION Wear OSHA specified steel tipped safety shoes HEAD PROTECTION Wear OSHA specified safety helmets DUST PROTECTION Wear OSHA specified dust mask or respirator OPERATOR Keep children and bystanders off and away from the equipment 21171 REFERENCES For details on safety rules and regulations in the United States contact your local Occupational Safety and Health Administration OSHA office Equipment operated in other countries must be operated and serviced in accordance and compliance with any and all safety requirements of that country The publication of these safety precautions is done for your information MBW does not by the publication of these precautions imply or in any way represent that these are the sum of all dangers present near MBW equipment If you are operating MBW equipment it is your responsibility to insure that such operation is in full accordance with all applicable safety requirements and codes All requirements of the United States Federal Occupational Safety Health Administration Act must be met when operated in areas that are under the jurisdiction of that United States Department Safety Decals Carefully read and follow all safety decals Keep them in good condition If decals become damaged replace as required If repainting the unit replace all decals Decals are available from authorized MBW
7. OPERATOR S SAFETY AND SERVICE MANUAL MKS 90 This manual covers the following serial numbers and higher for each model listed MKG 90 1760001 RIDE ON TROWELS MBW Inc MBW UK 250 Hartford PO Box 440 Units 2 8 3 Cochrane Street Slinger WI 53086 0440 Bolton BL3 6BN England Phone 262 644 5234 Phone 01204 387784 Fax 262 644 5169 Fax 01204 387797 L18255 08 04 MBW Inc 2004 Email mow mbw com Printed in the USA Website www mbw com TABLE OF CONTENTS Safety Information 1 a a WE ea ERO CR 7 RT 1 Changing Trowel Blades Safety 4 Correct attachment of standard blades 7 Safety Decals 1 SEPAGA LAS BANG Replacing The 8 Specifications 3 Replacing The 8 Operation cic Dr na a 8 9 INMOGUCUON als eee Rome ihe 4 Torque Chart s i dcn ii Beastie 9 Before Starting amp Operating 4 Parts Replacement Cycles and Tolerances 9 Stating ENGINE 4 CD CU AUIING 4 Replacement Parts 10 Stopping Engine
8. distributors Order the decal set listed on the following page s uz lt 2 lt D Ow Z we 596 Zr o 944 25 2 e 4 2 lt SEEN 05 O CN LLI E m A W gr Z 29 AN sk 2 lt lt EE Au 2 TA 27 q q z ly Lift only by lift hooks Weight 660 300kg Jai injury or damage if lifted WATER TANK A Machine may fall and cause N LR e 5 9 YAN 4 v VN AME S i M AR 4 SE 747 13483 N o 2 5 N O 15 zi lt gt 9 ROTATING BLADES CAN CRUSH AND CUT KEEP HANDS CLEAR 09867 NOT IN DECAL SET 18031 T R O W E P O W E R 18003 NOT IN DECAL SET 09867 NOT IN DECAL SET Safety Decals Decal Set 18007 SPECIFICATIONS 628lbs 285kg Kohler 20HP 3600 RPM 4162 La 7 j 1 5 x 4 E r NN Y OA 0774 B an Ne A WS m WS lt 80 7 x 40 5 x 41in 2050x1030x1040mm 4 mt 0 ON LEA ip PT lt SS 28 KES ai i AC NOVA m ziv 15 gt 0 515 gt G 70 125 35 4in 900mm 295 ft min 90 m min
9. ervice of any of our products Likewise this warranty shall not apply with respect to engines motors and other component parts produced by other manufactures and used on MBW products but such items shall have such warranties as may be provided by the manufacturer thereof MBW UK Ltd Units 2 amp 3 Cochrane Street Bolton BL3 6BN England Phone 01204 387784 Fax 01204 387797 250 Hartford Rd PO Box 440 Slinger WI 53086 0440 Phone 262 644 5234 Fax 262 644 5169 Email mbw mbw com Website www mbw com 20
10. haul or teardown V Belts Replace if cracked torn or stretched to the point the belt won t tension properly REPLACEMENT PARTS The warranty is stated in this book on page 20 Failure to return the Warranty Registration Card renders the warranty null and void MBW has established a network of reputable distributors dealers with trained mechanics and full facilities for maintenance and rebuilding and to carry an adequate parts stock in all areas of the country Their sales engineers are available for professional consultation If you cannot locate an MBW distributor in your area contact MBW or one of our Sales Branches listed below When ordering replacement parts be sure to have the following information available Model and Serial Number of machine when ordering MBW parts Model and Serial Number of engine when ordering engine parts Part Number Description and Quantity Company Name Address Zip Code and Purchase Order Number Preferred method of shipping REMEMBER You own the best If repairs are needed use only MBW parts purchased from authorized MBW distributors Write Model Number here Write Serial Number here Contact Information Lum TI a 7 DECAL LOCATION The unit s serial number is located on the side of the seat pedestal MBW Inc 250 Hartford Rd PO Box 440 Slinger WI 53086 0440 Phone 262 644 5234 Fax 262 644 5169 Email mow mbw com Website www
11. laced after any disassembly Torque Chart 1 4 20 1 4 28 5 16 18 5 16 24 3 8 16 3 8 24 1116 14 7116 20 1 2 13 1 2 20 9 16 12 5 8 11 5 8 18 3 4 16 1 8 1 14 49 in lbs 56 in lbs 8 ft lbs 9 ft lbs 15 ft lbs 17 ft lbs 24 ft lbs 27 ft lbs 37 ft lbs 41 ft lbs 53 ft lbs 73 ft lbs 83 ft lbs 144 ft lbs 188 ft lbs 210 ft lbs 76 in Ibs 87 in lbs 13 ft lbs 14 ft lbs 23 ft lbs 26 ft lbs 37 ft lbs 41 ft lbs 57 ft lbs 64 ft lbs 82 ft lbs 112 ft lbs 112 ft lbs 200 ft lbs 483 ft lbs 041 ft lbs GRADE 8 9 ft lbs 10 ft lbs 18 ft lbs 20 ft lbs 33 ft lbs 37 ft lbs 52 ft lbs 58 ft lbs 80 ft lbs 90 ft lbs 115 ft lbs 159 ft lbs 180 ft lbs 315 ft lbs 682 ft lbs 764 ft lbs 2371 ft lbs 7 ft lbs 18 ft lbs 30 ft lbs 1 1 2 6 652 ft lbs M6 3 ft lbs M8 6 ft lbs 10 ft lbs M 10 10 ft lbs 20 ft lbs CONVERSIONS 114105 x 0 083 ft lbs ft lbs x 12 in lbs ft lbs x 0 1383 kg m ft lbs x 1 3558 Nem 1462 ft lbs 4 ft lbs Parts Replacement Cycles and Tolerances Replace anytime a bearing is rough binding discolored or removed from housing or Bearings shaft Engine Components Refer to your engine manufacturer s Owner s Manual Replace any worn or damaged hardware as needed Replacement hardware should Hardware 2 be grade 5 and zinc plated unless otherwise specified Safety Decals Replace if they become damaged or illegible Seals amp Gaskets Replace if a leak is detected and at every over
12. nd remove the start key from the engine Moving Forward Push both control levers forward Moving to the Right Push both control levers right Stopping in emergency conditions The safety stop levers are connected to two micro switches which cut the electric power to the engine in case of an emergency immediately release the levers A WARNING A Always stop the engine before Adding fuel Leaving the equipment unattended for any amount of time Before making any repairs or adjustments to the machine Moving Backwards Pull both control levers back Moving to the Left Push both control levers left Right turn Push the left control lever forward and pull the right control lever back Left turn Push the right control lever forward and pull the left control lever back Fig 1 Control MAINTENANCE WARNING CAUTION A Always follow the stopping procedure before Always verify fluid levels and check for leaks after servicing or lubricating the unit changing fluids After servicing the unit replace and fasten all Do not drain oil onto ground into open streams guards shields and covers to their original or down sewage drains positions before resuming operation Maintenance Schedule SYSTEM MAINTENANCE DAILY WEEKLY poc YEARLY RC CS X 1 X 122
13. nit Make sure every individual who operates or works with this equipment is familiar with all safety precautions A WARNING GENERAL WARNING Indicates information important to the proper operation of the equipment Failure to observe may result in damage to the equipment and or severe bodily injury or death A CAUTION GENERAL CAUTION Indicates information important to the proper operation of the equipment Failure to observe may result in damage to the equipment Safety Precautions LETHAL EXHAUST GAS An internal combustion engine discharges carbon monoxide a poisonous odorless invisible gas Death or serious illness may result if inhaled Operate only in an area with proper ventilation NEVER OPERATE IN A CONFINED AREA DANGEROUS FUELS Use extreme caution when storing handling and using fuels as they are highly volatile and explosive in vapor state Do not add fuel while engine is running Stop and cool the engine before adding fuel DO NOT SMOKE SAFETY GUARDS It 15 owner s responsibility to ensure that all guards and shields are in place and in working order IGNITION SYSTEMS Breakerless magneto and battery ignition systems can cause severe electrical shocks Avoid contacting these units or their wiring SAFE DRESS Do not wear loose clothing rings wristwatches etc near machinery NOISE PROTECTION Wear OSHA specified hearing protection devices EYE PROT
14. or at authorized MBW 10 Warranty card must be returned to MBW MBW distributors UK Limited within 10 days after purchase assignment to a rental fleet or first use Failure to Machines altered or modified without MBW written return warranty card specified renders the consent voids this warranty Misuse negligence warranty null and void accidents or the operation of machines in any way other than recommended by MBW will void this 11 Requests for warranty must be submitted within 30 warranty This warranty shall not apply to machines days after machine failure to MBW or MBW UK repaired by other than MBW factory branches or Limited authorized MBW distributors 12 The foregoing warranty is expressly in lieu of all other This warranty includes labor on all MBW products Labor must be performed at an authorized MBW distributor The cost of transportation and other expenses connected therewith are not covered by this warranty Written authorization for the return of merchandise under warranty must be obtained from MBW or MBW UK Limited MBW reserves the right to inspect and render final decision on each warranty case MBW Inc warranties expressed or implied including the warranties of merchantability and fitness for use and of all other obligation or liabilities on our part and we neither assume nor authorize any other person to assume for us any other liability or warranty in connection with the sale or s
15. oximately 74 to 72 deflection with moderate pressure applied to the back side of belts Tighten jam nut After unit is run belt tension should be rechecked and readjusted as needed Replacing The Floats CAUTION Be careful when installing the floats one rotor turns clockwise and the other counterclockwise therefore you need to check that the various com ponents have been properly arranged Before mounting the floats check that the blades are clean The blades must be placed in horizontal position using the pitch control Slightly lift the float machine off the ground about 4 Mount the floats on the blades checking the correct direction of rotation When the floats have been mounted reposition the float machine on the ground SERVICE Assembly and disassembly should be performed by a service technician who has been factory trained on MBW equipment The unit should be clean and free of debris Pressure washing before disassembly is recommended Prior to assembly wash all parts in a suitable cleaner or solvent Check moving parts for wear and failure Refer to the Replacement section in this manual for tolerance and replacement cycles All shafts and housings should be oiled prior to pressing bearings Also ensure that the bearings are pressed square and are seated properly All bearings should be replaced when rebuilding any exciter or gearbox All gaskets and seals should be rep
16. sh unleaded gasoline FUEL FILTER If clogged or damaged replace Make sure the machine is on a flat surface with a working area of at least 3 000 square feet and that there is a sufficient area around the machine at least 6 ft See that the blade is inclined by at least 1 2 in order to have better control over the float machine when starting Adjust seat if necessary Make sure the two drive control levers are vertical and adjust if necessary Starting Engine 1 Close the choke Choking may not be necessary warm engines Leave accelerator pedal at idle Hold one emergency stop lever closed and turn the start key 4 Open the choke once engine is warm Operating A CAUTION A To avoid premature clutch wear it is necessary to accelerate quickly upon start up then back the throttle off to the desired speed after the clutch is fully engaged To drive the machine in the desired direction there are two control levers Move the controls slowly and smoothly To stop the float machine return the control levers to the rest position The control lever positions and the relevant movements are described on page 5 of this manual Preparing the surface Use a mechanical vibrating float or manual float to level the floor surface in order to obtain a well compacted concrete footing and thus prepare the ideal surface for floating and finishing The float machine does not improve flatness of a badly floated or une
17. ting A WARNING A Never leave the floats attached to the float machine when lifting it more than 3ft off the ground since it could detach and cause damage to people and things To lift the machine from one level to another use a hoisting crane or lift truck of suitable capacity Weight can be found in Specifications page 3 To transport the machine on a truck place the blades in horizontal position using the control knobs transporting the float machine with the blades inclined may damage the blade tilt system Storage A WARNING A Never store the machine with fuel in the tank in places where the fuel vapors might come into contact with flames and or sparks If you know that the machine will not be used for more than one month drain the fuel from the tank in order to prevent the formation of rubbery deposits and disconnect the battery If storing the machine in places where the temperature might drop to below freezing drain the water tank Changing Trowel Blades A WARNING A Trowel blade edges may be sharp when they are worn Wear protective gloves when handling the blades Always check the state of wear of the blades and if they are damaged or bent replace them They must all be replaced at the same time 1 Clean the machine 2 Slightly lift the float machine off the ground about 4 3 Remove the blades by removing the bolts though arm To replace the metric blades with standard you will
18. ven floor Floating phase The floor is ready for the first pass when the imprint of the shoe heel sinks into the concrete by about 1 8 when walking on it On average about 2700 3200 square feet of surface are floated in 10 minutes Speed varies with conditions When the concrete is still fresh take care not to work continuously on the same spot since due to the weight of the float machine you may create an uneven floor surface During the floating phase the floats must not chatter on the surface this might be caused by dirt between the blades and the floats Finishing phase When floating has been completed detach the floats from the blades and clean the cement that has collected during the floating phase off the blades the spider and the protection rim Turn the blade lifting knob clockwise until the blades are inclined by about 1 2 for the first pass for the subsequent smoothing operations continue increasing blade inclination until obtaining the desired finish The time between one pass and the next is determined by the temperature and by the amount of water in the concrete If the concrete has hardened too quickly in some areas it can be moistened by spraying a small amount of water using the button located on the left control bar in order to obtain the degree of finish desired Stopping Engine 1 Release the accelerator pedal to idle and release the two safety stop levers 2 Close the fuel valve a
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