Bulldog WD26 - Factory Cleaning Equipment
Contents
1. 9 Horizontal Adis 9 Solution Tank Drain HOSe ET T T 10 M aie M OM o o Lo S 10 vore Wife lE liri NER E E D 10 Recovery Tank Drain Flos HR IX RESHBS ten S SE HUP VES MENU EE 11 CT SMC a erc NN TT E OO E 11 Screened Float Removal usse tae fn Ea Fa Haa GE ADR PE vk EE RE 11 In Line Solution Filter Assembly rris terri dc ecce 12 aie icp qetm c 12 Cleaning the Squeegee PO 12 Changing the Squeegee eene nnne 12 Angle ACIMSUTIGP E EEEE EEEREN 13 Hegn AdUsimeni 13 14 BSP Loading Unong 14 Aduasiop Solution ata vus anu d dq dat CR DEVE VEU 14 The Bulldog 026 15 Machine Operation Leeeeeeeeeeeeeeeeeeeeeeeee eese nenne nennen nennen nnne nenne nnne 16 TO TUMON cree EE EL oO E 16 TO AU E ei ERR UU m UU TU 16 Joe Ei Meo T mc 16 lura on Cleaning Solution ssiri2. Direction Switch D This 3 position switch sets the direction the machine will move when the bail handle is pulled The middle position is neutral brushes amp vacuum will operate but machine will not move Squeegee Lift Lever E When moved to the top position the squeegee is lowered and the vacuum motor is turned on When locked in the bottom position the squeegee is raised and the vacuum motor shuts off after a 10 second delay Battery Fault Gauge F This gauge displays the remaining battery charge This gauge also displays any fault codes that might occur with the Drive Motor Controller see Diagnostic Codes Gauge will blink for 5 seconds when key is first turned on to run diagnostic check before machine can be used Speed Control G This control sets the speed at which the machine will move Charge Status Indicator H This gauge displays the status of the batteries during charging The gauge has a readout of 3 LEDs 1 Green 1 Yellow 1 Red Green indicating a full charge Yellow indicating 8096 charged Red indicating the batteries are charging Solution Control Lever J This lever controls the rate at which solution is dispensed Moving the lever up will increase the amount of solution Moving the lever down will decrease the amount Moving the lever all the way down shuts off solution flow Aquastop Solution Setting K This bracket is a guide to limit the amount of solution dispensed for consistent performance
3. Kae e RE ovas Fade Pax uu a dd iu Ver VE 16 Directori elle RETE OO 16 wiesen eelg Ko T OO Oo D TD D pentane 16 Burg EE 16 RO hae VE E 16 Ho r Meter Optional 16 16 Maintenance 17 SOG HG AE E PE E A A 18 Safety Instructions IMPORTANT SAFETY INSTRUCTIONS Operators must read and understand this manual before operating or maintaining this machine Do not operate this machine in flammable or explosive areas This machine is designed solely for scrubbing dirt and dust in an indoor environment The manufacturer does not recommend using this machine in any other capacity The following information below may cause a potential hazard to the operator and equipment Read this manual carefully and be aware when these conditions can exist Take necessary steps to locate all safety devices on the machine and train the personnel operating the machine Report any machine damage or faulty operation immediately Do not use machine if it is not in proper operating condition FOR SAFETY DURING OPERATION Keep hands and feet clear of moving parts while machine is in operation Make sure all safety devices are in place and operate properly All covers doors and latches must be closed and fastened before use
4. 1 Park the machine on a level surface and lower the squeegee 2 Loosen the lower wing nut B on the adjusting screw A and adjust the squeegee using the ad justing screw so that the ends of the squeegee blades still have contact with the floor By turning the adjusting screw A counterclockwise the clearance between squeegee blade and floor is increased in the center Fig 1 When turning the adjusting screw A clockwise the clearance between squeegee blade and floor is reduced in the center Fig 2 3 Switch the machine on and check the suction pattern When the machine is in operation the entire surface of the squeegee blades center and outer areas must be applied as evenly as possible 4 Tighten the lower wing nut B on the adjusting screw A against the metal bracket to lock in the pitch setting Squeegee Blades Height Adjustment streaks are present despite an optimum angle adjustment the clearance between the caster wheels and floor must be adjusted by changing the number of washers underneath the bracket that holds the wheel The squeegee height is preset at the factory to 3mm In cases of very smooth floors e g finished floors PVC linoleum etc see 2mm illustration for washer configuration In cases of very uneven floors e g poorly laid tiles water does not run off configure as shown in 4mm illustration Keep the extra washers by installing them above the bracket as shown
5. 13 Machine Overview Brush Deck Brush Loading Unloading Js Brush Deck may be tilted up for easier brush installation removal amp to clear steep ramps Lift the handle on the upper lever which connects the brush deck to the machine tilt the deck up release the handle amp the lever will lock into place Lift the handle again to move the deck back to horizontal Aquastop Solution Control 2 Brushes are installed removed by hand Push each brush up onto the hub until it clicks To remove pull down on the edge of each brush Bovey SR The splash guard may be moved up or down as the brush pad wears by loosening the clamp on the back side of the deck with a flat head screwdriver or 9 32 7mm socket then slide the splash guard to the desired height amp retighten the clamp In order to consistently conserve water when using Aquastop brushes the guide will stop the solution control lever at a low rate setting This setting may be adjusted by loosening the knob adjusting the lever and retightening the knob Slide the knob all the way forward to dispense maximum solution 14 15 The Bulldog WD26 This machine was designed with total operator comfort and ease of use in mind All machine components have been designed as a total system to efficiently clean dirty floors Please contact your representative for specific recommendations for the correct brush type and chemical app
6. Machine Overview Optional Hour Meter The Manufacturer offers an optional hour meter for the Floor Srubber The optional kit replaces the power cord mounting bracket at the rear of the machine with one that contains an hour meter Manufacturer s Kit K E1720HM Optional Pump Kit The Manufacturer offers an optional pump kit for the floor scrubber The pump will turn on when the switch is toggled to the ON position The hose to coupler fills then the pump shuts off until the wand not supplied is connected and chemical is dispensed TOGGLE SWITCH Kit K E1720P PUMP Vacuum Hose Routing Circuit Breakers The circuit breakers are located at the bottom of For best results route the vacuum hose as shown below the back panel of the machine A Main Control Circuit Breaker 4A B Brush Motor Circuit Breaker 30A C Vacuum Motor Circuit Breaker 20A D Drive Motor Circuit Breaker 20A If any of the functions above are not operating check if the circuit breaker buttons have tripped Press to reset THRU THE HOSE CLIP Machine Overview Battery Compartment The battery compartment is located under the recovery tank The Battery compartment can be accessed for servicing and mainte nance by tilting the recovery tank make sure recovery tank has been drained before tilting The battery compartment contains two 12 volt batteries connected in series Connect the batteries according to the battery connect
7. C R u ERS WD26 User Manual Walk Behind Scrubber Traction Drive Disc Deck www bulldogscrubbers com 877 292 3935 This manual is furnished with each new Bulldog WD26 This provides necessary operating and preventive maintenance instructions Operators must read and understand this manual before operating or servicing this machine This machine was designed to give you excellent performance and efficiency For best results and minimal cost please follow the general guidelines below Operate the machine with reasonable care Follow the manufacturer s suggested maintenance instructions as provided in this booklet Use original Manufacturer supplied parts rms m io A y Technical Specifications Model Bulldog WD26 Model No WD26 Current Max 40 amps Battery Capacity Lead Acid 140Ah 20 hr Battery Capacity Gel 95Ah 20 hr Sound Level 69 dBA Cleaning path width 26 in 65 cm Squeegee width 38 in 95 cm Productivity 30 500 ft hr 2830 m hr Working Speed 2 7 mph 4 3 km per hr Transport Speed 2 7 mph 4 3 km per hr Rated voltage 24 volts Vacuum flow 65 cfm 110 m hr Vacuum waterlift 45 inches 112mbar Vacuum power 60 HP 450 W Brush type Disc Brush motor s power 3 4 HP 550W Number of brushes 2 Brush RPM 180 RPM Solution capacity 12 Gal 45 liters Recovery capacity 13 Gal 49 liters Working Grade 290 Weight with batteries 370lbs 168 kg Weight without batteries 2
8. Itis important to check and clean the screened washer inside the assembly regularly to ensure proper solution flow To open unscrew the assembly Note that the cone of the washer is facing out toward the rear of the machine Remove washer and rinse reinsert and screw assembly together tightening by hand Overtightening with tools may damage the plastic threads A Fitting MGHT B Screened Washer Hose Barb Insert D Fitting FGHT Rear Squeegee Cleaning the Squeegee Changing the Squeegee Blades A Squeegee Check the squeegee A daily and clean Check the inner and outer squeegee B Star shaped knob as necessary blades on the squeegee A weekly for C Adjusting screw for angle adjustment 1 Pull off the suction hose D signs of wear The squeegee blades can D Suction hose 2 loosen the two star shaped knobs B reused by turning them can be turned E Blade fastening latch 3 Remove the squeegee for 4 total uses F Washers for caster height adjustment 1 Pull off the suction hose D loosen the G Caster Wheel Axle two star shaped knobs B and remove the squeegee 2 Unlock the fastening device E and remove the outer squeegee blade Turn the squeegee blade or install a new one as necessary Change the inner squeegee blade in the same way Machine Overview Squeegee Blades Angle Adjustment The angle adjustment is the decisive factor in ensuring that the squeegee blades on the squeegee lie evenly on the floor
9. around the bearings The grease points are listed below e Rear caster swivel 2 Apply lubricant or light machine oil to lubricate the e Pivot mounting point of the squeegee lift mechanism to the chassis 1 Rear squeegee caster wheel axle 2 Troubleshooting 18 Possible Cause Recovery hose to squeegee or recovery tank Reconnect or replace recovery hose disconnected damaged Squeegee is down and directional switch is in Raise squeegee when in reverse mode reverse position Bail handle depressed too quickly after turning Turn key off turn on wait until battery gauge key on lights up without flashing Recovery tank full Empty recovery tank Empty recovery tank rinse off the screened float inside recovery tank Use less or change chemical Use defoaming agent Foot pedal not in the home position Excessive foam in recovery tank Troubleshooting 19 RED LED lamp blinks Warning once Charger Warning Indicators LED status Description Output open circuit or short circuit or reverse polarity connection of charger to battery Battery voltage is too high may be connected to wrong voltage battery Abnormal cycle may be weak or bad battery Charging time has safety timed RED LED lamp blinks twice Fault Diagnostic Codes out due to battery problem The Battery Fault gauge will flash when a fault is detected A decal labeled Diagnostic Codes is located below the battery gauge as an abbr
10. the direction selected To Charge Batteries When the battery fault gauge reaches the red zone the batteries need to be recharged Take the machine to a well ventilated area unwind the battery charger power cord from the electrical box cover and plug into an appropriate power source After approximately 10 seconds the battery charge status indicator will turn on Check the battery water levels before each use refill as needed with distilled water Caution do not overfill Fill water 1 4 1 2 above the separators Failure to maintain the batteries may result in battery failures WARNING Charging batteries generates explosive gasses Do not charge batteries when open flames or sparks are present Do not smoke Charge the batteries in a well ventilated area Hour Meter Optional Hour meter will automatically record operating time of the brush motor After Use 1 When finished scrubbing lift the scrub deck Lift the rear squeegee the vacuum motor will turn off after 10 seconds Move the machine to a service area for daily maintenance and review items that may need service 2 Empty the solution tank by disconnecting the solution tank drain hose from the barb fitting and routing hose to a drain Rinse the tank with clean water to prevent any buildup of dried chemicals that could clog the plumbing Empty and clean the recovery tank by flushing with a hose Be sure to also clean the float shut off screen Remove the brushes or pad h
11. 35 Ibs 107 kg Dimensions LxWxH 48 x 26 0 x 38 0 112 8 x 47 8 x 107 4 cm Drive Motor Power 1 5 HP 150W Table Of Contents Safety 4 Unpacking 4 19 97 I 4 M 4 PANETE S oum iem teo op mp PI Lu ee se ncaa oe see conan 4 vice Mo Re T EO o DNE 4 Machine OVGIVICW me 5 leggo NER Om 6 ls s Sl E E oo 6 Handle Adjustment Knobs SN AXE VU MAU RANA PPP EE VEU EHE 6 hic Eee 6 bereit TEES 6 Squeegee Lift EE RE UMEN AEAEE EEEn 6 Battery Faut AUC seserian 6 Speed CONE e NE Tm 6 Charge Status TAC CANON MENTI T T C S 6 Sees Hour Meler TTE 7 piona PUMED VII aL E E a 7 WAC OAT Hose ROUN ressis ES 7 Greit Breaka 7 Compari en oessa 8 Diagnostic Code Gude serseri EEEN n o LT 8 Handle Aduse OT TL 9 Angle ACIE VEI ora aean REED ORE sa
12. During operation attention should be paid to other persons in the work area and especially if small children are present Electric motors and components can cause an explosion when operated near explosive materials or vapor Do not operate this machine near flammable materials such as solvents thinners fuels grain dust etc Store or park this machine on a level surface only To prevent unauthorized use machine should be stored or parked with the key removed This machine is designed for level operation only Do not operate on ramps or inclines greater than 2 This machine is not suitable for picking up hazardous dusts Use caution when moving this machine into areas that are below freezing temperatures Any water in the tanks or hoses can cause damage to the machine FOR SAFETY WHEN SERVICING or MAINTAINING MACHINE Stop on level surface Disconnect the power to the machine by unplugging the red Battery connector located under the recovery tank near the batteries Avoid moving parts Do not wear loose jackets shirts or sleeves when working on machine Avoid contact with battery acid Battery acid can cause burns When working on or around batteries wear protective clothing and safety glasses Remove metal jewelry Do not lay tools or metal objects on top of batteries Charging batteries generates explosive gasses Do not charge batteries when open flames or sparks are present Do not smoke Make sure the charger is turned off before discon
13. d their functions While on ramps or inclines avoid sudden stops when tanks are filled Avoid abrupt sharp turns Slow down driving speed when going downhill Machine Operation 16 To Turn ON Machine Turn key to operate position 1 Wait for battery gauge to stop flashing approximately 5 seconds If flashing continues see troubleshooting guide To Turn ON Vacuum Lower squeegee into operating position vacuum motor will turn ON automatically To Turn ON Brush Motor Lower the scrub deck to the floor by moving the brush lift pedal from the home down position to the operating position up Depress the operator bail handle Brush motor will turn ON To Turn on Cleaning Solution Move solution lever from closed down position up to the desired flow position With the scrub deck on the floor depress the bail handle solution will begin to flow Note An electronic solution solenoid valve will stop solution flow whenever the bail handle is released Direction Switch Select direction of machine by moving the directional rocker switch from the neutral position to the forward or reverse position The direction of the machine movement is shown on the operator panel with forward and reverse arrows Speed control Move the speed dial to the desired position Turning the dial clockwise increases the speed Turning the dial counterclockwise decreases the speed Driving Depress the operator bail handle the machine will move in
14. eviated and convenient guide to determine the cause of the fault and the remedy refer to machine or see Diagnostic Code Guide section of this manual The flashing codes are for the following 1 Bar lj 4 Bar 6 Bar The battery needs charging there is a bad connection to the battery or dependent on programming may indicate that the battery lockout function is active and the controller is in a restricted mode of operation Check the connections to the battery If the connections are good try charging the battery There is a bad connection to the motor Check all connections between the motor and the controller The motor has a short circuit to a battery connection Contact your service agent The battery charge level has fallen below the Battery Lockout level and the controller is inhibiting certain machine functions Charge the battery Not used The controller is being inhibited from driving this may be because the battery charger is connected The bail handle was activated prior to turning the machine on Make sure that the bail handle is in the rest position Restart the key switch A controller fault is indicated Make sure that all connections are secure Not used An excessive voltage has been applied to the controller This is usually caused by a poor battery connection Check the battery connections www bulldogscrubbers com 877 292 3935 988737UMFC Rev 08 10
15. ion diagram see diagram The recommended batteries are 140Ah manufacturer s P N 956140 or 95Ah manufacturer s P N 956100 Gel The battery tray may be drained if necessary using the orange drain hose located above the rear caster on the right side of the machine FRONT OF MACHINE Diagnostic Code Guide When an error or fault occurs within the machine a fault code will appear on the battery gauge represented by a specified number of flashing LEDs See Troubleshooting for further information Diagnostic Codes The number of flashing bars the battery gauge represent fault codes as indicated below Low Battery Voltage Check condition of battery and connections Drive Motor Fault Chack connections between the motor and controffar Drive Motor Short Circuit Motor has a short circuit to a battery connection Contact Service Agent Battery Lockout Battery voltage is foo iow controller is preventing function Charge Batteries Not Used Drive Inhibit Check battery charger drive is inhibited when plugged in Throttle fault Restart keyswitch bail handle was activated prior to turning machine on Drive Controller Fault Check all connections are secure Not Used High battery voltage Check condition of battery and connections Machine Overview Handle Adjustment The WD26 handle was designed with operator comfort inmind The angle and horizontal position of the handle can be adjusted to suit the needs of
16. lications Before using the machine always perform the following steps to ensure proper machine operation Check under the machine for leaks e Check the rear squeegee for wear and damage e Check the solution and recovery tank levels After using the machine always perform the following steps Check the battery charge level Charge batteries if necessary When charging batteries extra precaution is required Battery acid can cause burns When working on or around batteries always wear protective clothing and safety glasses Remove metal jewelry Do not lay tools or metal objects on top of the batteries Charging batteries generate explosive gasses DO NOT CHARGE BATTERIES WHEN OPEN FLAMES OR SPARKS ARE PRESENT DO NOT SMOKE Charge the batteries in a well ventilated area Fluid levels should be checked before and after charging and maintained at the proper levels If low add distilled water until the metal plates are covered f the machine is not used for an extended period of time batteries should be kept fully charged with a boost charge once a week e Check for wire string or twine wrapped around the scrub brushes e Check the rear squeegee for wear and damage e Check the rear squeegee suction hose for obstructions e Drain and rinse the recovery tank Check under the machine for leaks Check the service records to determine maintenance requirements WARNING Be sure you understand the machine controls an
17. necting it from the machine Charge the batteries in a well ventilated area with the battery cover removed completely Do not clean machine with a pressure washer Authorized personnel must perform repairs and maintenance Use Minuteman supplied replacement parts SAVE THESE INSTRUCTIONS Inspection Carefully unpack and inspect your Bulldog WD26 Walk Behind Scrubber for shipping damage Follow unpacking instructions on shipping pallet Each unit has been tested and thoroughly inspected before shipment Any damage is the responsibility of the delivery carrier who should be notified immediately Electrical This machine is battery operated and designed to operate on 24 volts DC 2 12 volt batteries Batteries The recommended batteries are rated 140Ah WET Manufacturer P N 956140 or 95Ah Maintenance Free GEL Manufacturer P N 956100 We do not recommend mixing AMP hour capacities Alternate battery sets can be used if they equal physical size and capacity If alternate battery sets are used please contact the manufacturer for on board charger settings Operator Responsibility Read this manual carefully before operating this machine The operator is responsible for taking care of the daily maintenance and check ups of the machine to keep it in good working condition The operator must inform the service mechanic or supervisor when the scheduled maintenance intervals are required as stated in the MAINTENANCE section of this manual Before s
18. olders and rinse them in warm water and hang to dry Remove the rear squeegee and recovery hose rinse with warm water and reinstall after cleaning See page 13 for correct hose installation 6 Check the maintenance schedule in the next section and perform any required maintenance before storing the machine 7 Store the machine indoors in a clean dry place Keep from freezing Leave solution and recovery tank lids open for ventilation to prevent odor buildup 8 Turn Key switch OFF O and remove key OAO 17 Maintenance Weekly Monthly Charge Batteries Inspect Brush Deck Lubrication Grease Check Carbon Splash Guard for Debris Fittings Brushes Check Clean Tanks and Inspect and Clean In Line Hoses Solution Filter Check Clean Rotate Rinse off the underside of the Brushes Brush Deck Check Clean the Check each Battery Cell Squeegee s Water Level Check Clean Vacuum Shut Off Float in Recovery Tank Have a qualified service technician check the vacuum motor carbon motor brushes once a year or after 300 operating hours The brush motor and transaxle motor carbon brushes should be checked every 500 hours or once a year NOTE Refer to the Service Manual for more detail on maintenance and service repairs Regularly scheduled lubrication of certain machine parts should be performed to insure trouble free operation of the machine Apply a generous amount of grease into the fittings on the machine until grease seeps out
19. s left on the o ring will cause a vacuum leak Screened Float If the recovery tank C is overfilled or a large amount of foaming is present the screened float B blocks the vacuum intake inside the tank protecting the vacuum motor and internal electronics from water damage It is essential to keep the float in working order through regular maintenance The float should be cleaned daily by thoroughly rinsing with a hose Removal of the screened float is not necessary for daily maintenance At least once a month the screened float should be completely removed cleaned and checked for any damage to the seal or metal screen WARNING Damage to the machine may occur if operated without the screened float properly in place Screened Float Removal The screened float is positioned between the vacuum manifold A and recovery tank C The screened float B can be accessed by removing the 1 5 bolt D and two 1 25 bolts E that attach the manifold to the recovery tank using a 7 16 socket A Vacuum Manifold B Screened Float C Recovery Tank D 1 5 Bolt E 1 25 Bolt 2 F Helical Washer 3 G Flat Washer 3 Machine Overview 12 In Line Solution Filter Assembly The solution solenoid which shuts off solution flow when the bail handle is released is protected from debris by the in line filter assembly The filter assembly is located at the rear of the machine on the left hand side just under the solution tank
20. tarting familiarize yourself with the machine and its controls see Machine Overview Front Machine 7 11 Overview Rear Control Console diagrams Machine Overview Machine Overview Front FRONT WHEEL see note REAR CASTER SOLUTION TANK A CUP HOLDER B SOLUTION FILL PORT C RECOVERY TANK LID D RECOVERY TANK E BRUSH DECK F G H NOTE Front tires are foam filled to be maintenance free No air can be added Machine Overview Rear moou rn BAIL HANDLE SQUEEGEE LIFT LEVER RECOVERY TANK DRAIN HOSE ONBOARD CHARGER CORD CIRCUIT BREAKERS F RECOVERY HOSE G CONTROL PANEL H SOLUTION TANK DRAIN HOSE LEVEL INDICATOR J BRUSH DECK LIFT PEDAL K REAR SQUEEGEE L DIAGNOSTIC CODE GUIDE M SOLUTION CONTROL LEVER N DECK TILT HANDLE Machine Overview Controls A BAIL HANDLE B HANDLE ADJUSTMENT KNOB KEY SWITCH D DIRECTION SWITCH E SQUEEGEE LIFT LEVER F BATTERY FAULT GAUGE G SPEED CONTROL H CHARGE STATUS INDICATOR J SOLUTION CONTROL LEVER K AQUASTOP SOLUTION SETTING Bail Handle A When the scrub deck is lowered to the floor the bail handle enables the brush motor and moves the machine forward once depressed Handle Adjustment Knobs B Allows the handle position to be raised or lowered Key Switch C Controls the machine s power Off On with a key for safety When it is turned to the on position the machine will operate after 5 second diagnostic check see battery gauge
21. the operator Angle Adjustment The handle angle can be adjusted without tools by loosening the Angle Adjustment Knob A on each side and rotating the handle to the desired position There are 5 angular positions 11 25 apart for a total of 45 between the minimum and maximum position Horizontal Adjustment The horizontal position can be adjusted by removing the 4 Mounting Bolts B 2 each side with a 9 16 socket and sliding the Mounting Plate P to one of the 3 available positions The machine is shipped from the factory in position 1 Plate Position 3 Plate Position 2 Plate Position 1 Fully Extended Shipping Position Machine Overview 10 Solution Tank Drain Hose The solution tank may be drained by removing the Solution Tank Drain Hose A from the Hose Barb B and routing the hose to a floor drain Solution Level Indicator The Solution Tank Drain Hose also serves as a water level indicator for the solution tank The amount of water remaining in the solution tank can be seen through the clear drain hose Level markers molded into the solution tank are positioned at 1 4 1 2 3 4 and full levels Solution Fill Filter The Solution Fill Filter B should be cleaned regularly To remove simply open the Solution Tank Lid A and pull the filter out Machine Overview Recovery Tank Drain Hose Twist Cap to Open and Drain Twist amp Lift cap to clean out debris Note Debri
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