User Manual E17/E20 Walk-Behind Scrubber Disc Brush Drive
This manual is furnished with each new MINUTEMAN E17/E20. This provides the 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.
Technical Specifications Model E17/E20 Model No.
CE Declaration 4
Table Of Contents Technical Specifications ............................................................. 3 CE Declaration ............................................................................. 4 Safety Instructions ...................................................................... 6 IMPORTANT SAFETY INSTRUCTIONS .............................. 6 For Safety During Operation ................................................. 6 For Safety when Servicing or Maintaining Machine ..............
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. Minuteman does not recommend using this machine in any other capacity. The following information below may cause a potential hazard to the operator and equipment.
Unpacking Instructions Inspection Carefully unpack and inspect your E17/E20 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.
Machine Overview Machine Overview - Front A B C D E F G H J A B CUP HOLDER SOLUTION FILL PORT RECOVERY TANK LID RECOVERY TANK BRUSH DECK FRONT WHEEL REAR CASTER SOLUTION TANK FLOATING DECK SKIRT C D H E G J 8 F
Machine Overview Machine Overview - Rear A B C D E F BAIL HANDLE SQUEEGEE LIFT LEVER SOLUTION CONTROL LEVER RECOVERY TANK DRAIN HOSE ONBOARD CHARGER CORD CIRCUIT BREAKERS G H J K L RECOVERY HOSE CONTROL PANEL SOLUTION TANK DRAIN HOSE / LEVEL INDICATOR BRUSH LIFT PEDAL REAR SQUEEGEE 9
Machine Overview Control Panel A B C D E F G BAIL HANDLE HANDLE ADJUSTMENT KNOB KEY SWITCH SQUEEGEE LIFT LEVER SOLUTION CONTROL LEVER BATTERY GAUGE CHARGE STATUS INDICATOR A D C B F E G 10
Machine Overview Bail Handle (A) When the scrubdeck is lowered to the floor, the bail handle enables the brush motor and moves the machine forward once depressed. This also allows the operator to automatically load the brush when the scrub deck is lowered over the brush. Handle Adjustment Knobs (B) Allows the handle position to be raised or lowered. Key Switch (C) Controls the machine’s power (Brush Unload/Off/On) with a key for safety.
Machine Overview Optional Hour Meter Minuteman offers an optional hour meter for the E17/E20. The optional kit replaces the power cord mounting bracket at the rear of the machine with one that contains an hour meter that runs when the brush motor is on.
Machine Overview Optional Solution Solenoid Minuteman offers an optional solution solenoid for the E17/E20. The optional solenoid automatically turns off the solution flow when the brush motor is not active. Kit# K-E1720S In-Line Solution Filter Assembly The optional solution solenoid, which shuts off solution flow when the bail handle is released, is protected from debris by the in-line filter assembly.
Machine Overview Circuit Breakers The circuit breaker is located at the bottom of the back panel of the machine. A B C Main Control Breaker - 4A Brush Motor Breaker - 30A Vacuum Motor Breaker - 20A If any of the functions above are not operating, check if the circuit breaker buttons have tripped. Press to reset. A Battery Compartment The battery compartment is located under the recovery tank.
Machine Overview E17 Rear Squeegee The rear squeegee picks up water from the floor. A daily maintenance check of this component is essential to have optimum machine performance. The blade configuration has two usable edges and can be turned inside out to utilize the opposite side of the blade. If streaking occurs it is time to turn the blade to good edge or replace if this has already been done.
Machine Overview Rear Squeegee Cleaning the Squeegee Changing the Squeegee Blades A B C D E F G Check the squeegee (A) daily and clean as necessary. 1. Pull off the suction hose (D). 2. loosen the two star-shaped knobs (B). 3. Remove the squeegee (A). Check the inner and outer squeegee blades on the squeegee (A) weekly for signs of wear. The squeegee blades can be reused by turning them (can be turned for 4 total uses). 1.
Machine Overview Adjusting the E20 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. 1. Park the machine on a level surface and lower the squeegee. 2. Loosen the lower wing nut (B) on the adjusting screw (C) and adjust the squeegee using the adjusting screw so that the ends of the squeegee blades still have contact with the floor.
Machine Overview Adjusting the E20 Squeegee Blades Height Adjustment If 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.
Machine Overview Handle Adjustment The E17/E20 handle was designed with operator comfort in mind. The angle and horizontal position of the handle can be adjusted to suit the needs of 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.
Machine Overview 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.
Machine Overview 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. B A 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.
Machine Overview 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 Screened Float A 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 maintenace.
Machine Overview 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 B C D E F G D E E F Vacuum Manifold Screened Float Recovery Tank 1.5” Bolt 1.
Machine Overview Recovery Tank Drain Hose Twist Cap to Open and Drain Twist & Lift cap to clean out large debris Deck Skirt Removal (Do not lower with out brush) CAUTION: Bristles may be damaged if deck is lowered onto floor without brush/pad driver installed. Brush Deck Skirt will ride on the floor in use and float up or down based on amount of pad/ brush remaining. With brush removed & deck raised, Remove skirt for cleaning by pulling forward, then down over the edge of the deck.
Machine Overview 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. It is important to check and clean the screened washer inside the assembly regularly to ensure proper solution flow.
The E17/E20 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. The E17/E20 has two available scrub head types and sizes to fit specific applications. Please contact your Minuteman representative for specific recommendations for the correct scrub head type, size, and brush type and chemical applications.
Machine Operation To Turn on Machine Turn key to operate position ( I ) To Turn on Vacuum Lower squeegee into operate position, vacuum motor will turn on automatically. To Turn on Brush Motor Move brush lift pedal from the “home” (down) position to the operating position (up). Depress the operator bail handle. Brush motor will turn on and assist to propel the machine forward. To Turn on Cleaning Solution Move solution lever from closed (down) position up to the desired flow position.
Machine Operation Hour Meter (Optional) Hour meter will automatically record operating time of the brush motor. Solution Solenoid (Optional) Water solenoid will operate when the brush motor is turned on. The solution lever must be moved to the desired operating position, but does not need to be moved to the closed position when stopping for brief periods.
Machine Operation Loading Brush 1. To load the brush, first center the E17/E20 brush deck over the scrub brush. 30 2. Lower the scrub deck by releasing the deck lift pedal. 3. With the key turned on, pull the bail handle to engage the scrub brush onto the scrubdeck.
Machine Operation Unloading Brush 1. To unload the brush, first lift the scrub deck by pressing down on the deck lift pedal . Make sure the pedal is in the “home” position shown below. 2. Momentarily turn the key (1 to 2 seconds) to the “Brush Unload” position then let the key return to the off (O) position. 3. When done correctly the brush should release from the scrub deck and fall to the floor. CAUTION: Make sure scrub deck is clear of all personnel and obstructions before operating Brush Unload.
Notes 32
Notes 33
After Use After Use 1. When finished scrubbing, lift the scrub deck and turn the solution lever off. Lift the rear squeegee. 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 inside the recovery tank, and the drain hose cap.. 3.
Maintenance Daily Charge Batteries Check/Clean Tanks & Hoses Check/Clean the Brush/Pad Check/Clean the Squeegee Check/Clean Vacuum Shut-Off F loat in Recovery T ank W eekly Check Each Battery Cell(s) W ater Level Check/Clean brush deck skirt Check/Clean Solution Filter Mon thly Lubrication – G rease Fittings Yearly Check Carbon Brushes Have a qualified service technician check the vacuum motor carbon motor brushes once a year or after 300 operating hours.
Troubleshooting Problem Poor water pick-up Poor scrubbing performance Inadequate solution flow or no solution to the floor Machine does not operate 36 Possible Cause Worn or torn squeegee blades Recovery tank full Recovery tank drain hose leak Recovery tank lid gasket leak Debris caught in squeegee Vacuum hose clogged Using too much solution Recovery hose to squeegee or recovery tank disconnected or damaged Worn brush Wrong brush or cleaning chemical Debris caught on scrub brush Moving machine too fast
Troubleshooting Problem Possible Cause Recovery tank full Excessive foaming in recovery tank. Remedy Empty recovery tank Empty recovery tank. Use less or change chemical.
Minuteman International Made Simple Commercial Limited Warranty REVISION F EFFECTIVE 6/1/2009 Minuteman International, Inc. warrants to the original purchaser/user that the product is free from defects in workmanship and materials under normal use. Minuteman will, at its option, repair or replace without charge, parts that fail under normal use and service when operated and maintained in accordance with the applicable operation and instruction manuals.
Cord Electric Group: Three years parts, two years labor, ninety days travel (Not to exceed two hours) Exceptions……….
Minuteman International · 14N845 U.S. Route 20 · Pingree Grove, Illinois 60140 USA Phone 800-323-9420 · Fax 800-422-6933 www.minutemanintl.
