User Manual E17/E20 Walk-Behind Scrubber 988720UM - ES 1720 User Manual - REV 1 STAR 0707.
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 Current (Max) Voltage, Batteries Battery Capacity (Lead Acid) Battery Capacity (Gel) Sound Level Gross Weight (with Batteries) Gross Weight (w/o Batteries) Squeegee Width Working Grade Transport Working Grade Cleaning 32 amps 24V 105AH @ 20Hr 100AH @ 20Hr 69 dBA 310 lbs (141 kg) 200 lbs (91 kg) 33” (84cm) 2% 2% Working Width E17 Working Width E20 Working Speed Vacuum Flow Vacuum Waterlift Vacuum Power Brush Speed Solution Tank Capacity Recovery Tank Capacity 17” (43cm) 20” (60cm
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Table Of Contents Technical Specifications 3 Safety Instructions 6 DURING OPERATION .......................................................... 6 WHEN SERVICING or MAINTAINING MACHINE ................ 6 Unpacking Instructions 7 INSPECTION ........................................................................ 7 ELECTRICAL ........................................................................ 7 BATTERIES .......................................................................... 7 OPERATOR RESPONSIBILITY .
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-BehindScrubber 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 A B C D E F G H C CUP HOLDER SOLUTION FILL PORT RECOVERY TANK LID RECOVERY TANK BRUSH DECK FRONT WHEEL REAR CASTER SOLUTION TANK D H E K G F 8 988720UM - ES 1720 User Manual - REV 8 STAR 0707.
Machine Overview A Machine Overview - Rear H B C I D E J F K G A B C D E F BAIL HANDLE SQUEEGEE LIFT LEVER SOLUTION CONTROL LEVER RECOVERY TANK DRAIN HOSE ONBOARD CHARGER CORD CIRCUIT BREAKERS 988720UM - ES 1720 User Manual - REV 9 STAR 0707.
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 988720UM - ES 1720 User Manual - REV 10STAR 0707.
Control Panel For operator ergonomics, the control panel houses all the primary functions. Controls are grouped in a central area at the rear of the machine. 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 scrubdeck is lowered. Handle Adjustment Knobs (B) Allows the handle position to be raised or lowered.
Optional Hour Meter 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. Kit# K-E1720HM 12 988720UM - ES 1720 User Manual - REV 12STAR 0707.
Optional Solution Solenoid 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 13 988720UM - ES 1720 User Manual - REV 13STAR 0707.
Circuit Breakers Circuit Breakers The circuit breaker is located at the bottom of the back panel of the machine.The 4-amp breaker (A) protects the main controls circuit, The 30-amp breaker (B) protects the brush motor circuit, and the 20-amp breaker (C) protects the vacuum motor circuit. A B C Main Control Breaker Brush Motor Breaker Vacuum Motor Breaker If any of the functions above are not operating, check if the circuit breaker buttons have tripped. Press to reset.
Battery Compartment Battery Compartment The battery compartment is located under the recovery tank. The Battery compartment can be accessed for servicing and maintenance 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 connection diagram (see diagram). The recommended batteries are 105Ah (Minuteman P/N 956712) or 100Ah (minuteman P/N 956100) Gel.
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. A 16 988720UM - ES 1720 User Manual - REV 16STAR 0707.
Handle Adjustment 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. 3 P Plate Position 3 (Fully Extended) Plate Position 2 2 1 B Plate Position 1 (Shipping Position) 17 988720UM - ES 1720 User Manual - REV 17STAR 0707.
Solution Tank Drain Hose / Level Indicator 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.
Solution Fill Filter Solution Fill Filter A The Solution Fill Filter (B) should be cleaned regularly. To remove, simply open the Solution Tank Lid (A) and pull the filter out. B 19 988720UM - ES 1720 User Manual - REV 19STAR 0707.
Brush Load / Unload Loading Brush To load the brush, first center the E17/E20 brush deck over the scrub brush. Lower the scrub deck by releasing the deck lift pedal. With the key turned on, pull the bail handle to spin the scrub brush onto the scrubdeck. 20 988720UM - ES 1720 User Manual - REV 20STAR 0707.
Brush Load / Unload Unloading Brush 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. Momentarily (1 to 2 seconds) turn the key to the “Brush Unload” position. Note: The brush will release only when the key returns to the off position (O). If done correctly the brush should release from the scrub deck and fall to the floor. 21 988720UM - ES 1720 User Manual - REV 21STAR 0707.
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.
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. D E E F G A A B C D E F G Vacuum Manifold Screened Float Recovery Tank 1.5” Bolt 1.25” Bolt (2) Helical Washer (3) Flat Washer (3) B 23 988720UM - ES 1720 User Manual - REV 23STAR 0707.
Rear Squeegee The rear squeegee is the main element of the conduit that transfers the spent solution into the recovery tank. 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.
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 To Charge Batteries: When the battery status indicator 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. Be sure to check the battery water levels as recommended. WARNING: Charging batteries generates explosive gasses.
After Use When finished scrubbing, lift the scrub deck and turn the solution lever off, water flow will cease. Lift the rear squeegee (the vacuum motor will turn off). Move the machine to a service area for daily maintenance and review items that may need service. Empty the solution tank, by disconnecting the solution tank drain hose from the barb fitting over a drain. Rinse the tank with clean water to prevent any build-up of dried chemicals that could clog the plumbing.
Maintenance Daily Charge Batteries Check/Clean Tanks & Hoses Check/Clean/Rotate the Brushes/Pads Check/Clean the Squeegee Check/Clean Vacuum Shut-Off Float in Recovery Tank Weekly Check Each Battery Cell(s) Water Level Inspect Scrub Housing Skirts Inspect and Clean Solution Filter Monthly Lubrication – Grease 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 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 brushes Wrong brush or cleaning chemical Debris caught on scrub brushes Moving machine too fast Not using enough solutio
Troubleshooting Problem Machine does not operate Possible Cause Tripped Control Power circuit breaker Remedy Reset breaker Batteries have low charge Recharge batteries Battery charger operating Unplug battery charger when charge is complete Empty recovery tank Empty recovery tank. Recovery tank full Excessive foaming in recovery tank. Use less or change chemical.
Minuteman International Made Simple Commercial Limited Warranty 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.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state. Some states do not allow the exclusion or limitation of special, incidental or consequential damages, or limitations on how long an implied warranty lasts, so the above exclusions and limitations may not apply to you. Cord Electric Group............Three years parts, two years labor, ninety days travel (Not to exceed two hours) Exceptions.....................
Excellence Meets Clean Minutman International · 111 South Rohlwing Road · Addison, Illinois 60101 USA Phone 630- 627-6900 · Fax 630- 627-1130 E-Mail, www.minutemanintl.com A Member of the Hako Group 988720UM - ES 1720 User Manual - REV 34STAR 0707.
