Pacific Floorcare RS28 User manual

RS28
PARTS & OPERATING MANUAL
30 GALLON RIDER AUTO SCRUBBER
Thank you for purchasing a Pacic Floorcare product. Carefully inspect all components for freight damage. If such
damage is discovered, le a “CONCEALED DAMAGE REPORT” immediately with the delivering carrier.
Read this manual carefully and keep it near the machine, protected from liquids and other damaging substances. Failure to
follow the instructions may result in injury or damage to equipment and property.
The contents of this manual are based on the latest product information available at the time of publication. Pacic
Floorcare reserves the right to make changes or improvements without being obliged to apply changes to the machines
previously sold.
New manuals can be downloaded from: www.pacicoorcare.com/manuals

30 GALLON RIDER AUTO SCRUBBER SPECIFICATIONS
Features Specicaons
Model RS28 (Disk) RS28 (Orbital)
Machine Specicaons
Length 60 in (152.4 cm) 60 in (152.4 cm)
Width (w/o Squeegee) 27 in (68.6 cm) 27 in (68.6 cm)
Height 52 in (132.1 cm) 52 in (132.1 cm)
Weight w/ Std Baeries 920 lbs (417.5 kg) 920 lbs (417.5 kg)
Sound level 65 dBA 65 dBA
Construcon Rotaonally Molded Polyethylene Tanks
Powder Coated Steel Frame
Rotaonally Molded Polyethylene Tanks
Powder Coated Steel Frame
Drive System
Drive type 9.84 in (250 mm) motor in wheel 9.84 in (250 mm) motor in wheel
Motor horsepower 1.13 HP / 840 W 1.13 HP / 840 W
Speed Control Throle Pedal
5 Max Speed Sengs
Throle Pedal
5 Max Speed Sengs
Speed (Scrubbing) 310 fpm (5.7 km/h) 310 fpm (5.7 km/h)
Speed (Transport) 310 fpm (5.7 km/h) 310 fpm (5.7 km/h)
Speed (Reverse) 248 fpm (4.5 km/h) 248 fpm (4.5 km/h)
Scrubbing Grade 2% 2%
Transport Grade (Full) 10% 10%
Transport Grade (Empty) 19% 19%
Soluon Delivery System
Soluon Capacity 30 gal (133.6 l) 30 gal (133.6 l)
Soluon Control (Standard) 0.1 - .8 gpm (0.005 - 0.037 kg/sec) 0.1 - .8 gpm (0.005 - 0.037 kg/sec)
Soluon Control Sengs 5 5
Chemical injecon (Opt’l) 12 Sengs 12 Sengs
Scrubbing System
Cleaning Path 28 in (71.1 cm) 28 in (71.1 cm)
Pad Brush Size (2) 14 in (35.6 cm) Disk 14 in (35.6 cm) x 28 in (71.1 cm) Pad
Pressure 90 lbs (40.8 kg), 120 lbs (54.4 kg), 150 lbs (68 kg), 180 lbs (81.6 kg),
and 210 lbs (95.3 kg)
90 lbs (40.8 kg), 120 lbs (54.4 kg), 150 lbs (68 kg), 180 lbs (81.6 kg),
and 210 lbs (95.3 kg)
Producvity (Per Hour) Theorecal Max 49,238 sq- (4,573 sq-m) 49,238 sq- (4,573 sq-m)
Producvity (Per Hour) Average Coverage Rate* 25,566 sq- (2,378 sq-m) 25,566 sq- (2,378 sq-m)
Recovery System
Recovery Tank Capacity 32 gal / 121 L 32 gal / 121 L
Recovery Tank Accessibility Full Clean-out Access Full Clean-out Access
Vacuum Motor .76 Hp / 566 W, 3-Stage .76 Hp / 566 W, 3-Stage
Vacuum Motor cfm/cmm 68 cfm (1.92 cubic m/min) 68 cfm (1.92 cubic m/min)
Vacuum Motor Water-li 71 in (180 cm) 71 in (180 cm)
Squeegee Width 33 in (84 cm) 33 in (84 cm)
Squeegee Material (Std) Linatex® Linatex®
Squeegee Material (Opt’l) PRIMOthane® PRIMOthane®
Baery System
System Voltage 24 V 24 V
Baery Amp/Hour Rang (Std) 260 Ah 260 Ah
Baery Run Time (Std) Up to 3.0 hours Up to 3.5 hours
Baery Amp/Hour Rang (Opt’l) 360 Ah 360 Ah
Baery Run Time (Opt’l) Up to 5.0 hours Up to 5.5 hours
Baery Amp/Hour Rang (MF) 250 Ah 250 Ah
Baery Run Time (MF) Up to 2.5 hours Up to 3.0 hours
Charger Descripon On-Board On-Board
*Producvity calculaons ulize key factors from ISSA 540 cleaning mes handbook
Note: Specicaons subject to change without noce

TABLE OF CONTENTS
SAFETY INFORMATION ���������������������������������������������������������������������������������������������������������������������������������������������������1
UNPACKING THE MACHINE �������������������������������������������������������������������������������������������������������������������������������������������3
TRANSPORTING THE MACHINE �����������������������������������������������������������������������������������������������������������������������������������3
BATTERIES���������������������������������������������������������������������������������������������������������������������������������������������������������������������������4
SERVICING LEAD ACID BATTERIES (NON-HYDROLINK® MODELS) ..............................................................5
SERVICING LEAD ACID BATTERIES WITH HYDROLINK® WATERING SYSTEM ...........................................6
BATTERYSHIELD® AUTOMATED WET BATTERY PROTECTION SYSTEM......................................................6
CLEANING THE BATTERYSHIELD® SENSOR LIGHT PIPE .................................................................................7
CHARGING ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������8
CHARGER SETTINGS .................................................................................................................................................8
OPERATION��������������������������������������������������������������������������������������������������������������������������������������������������������������������������9
MACHINE OVERVIEW ...............................................................................................................................................9
CONTROL PANEL ......................................................................................................................................................10
MACHINE ERROR CODES ....................................................................................................................................... 11
DRIVE SYSTEM .........................................................................................................................................................12
SOLUTION DISTRIBUTION .....................................................................................................................................12
SCRUB HEAD ............................................................................................................................................................14
ORBITAL SCRUB HEAD & CHEMICAL-FREE FINISH REMOVAL....................................................................14
DISK SCRUB HEAD ..................................................................................................................................................15
RECOVERY SYSTEM ................................................................................................................................................16
RECOMMENDED MAINTENANCE�������������������������������������������������������������������������������������������������������������������������������19
RECOMMENDED SERVICE PARTS ������������������������������������������������������������������������������������������������������������������������������21
TROUBLESHOOTING GUIDE ����������������������������������������������������������������������������������������������������������������������������������������23
PARTS DIAGRAMS������������������������������������������������������������������������������������������������������������������������������������������������������������25
FRAME ASSEMBLY ..................................................................................................................................................25
SOLUTION TANK ......................................................................................................................................................28
STEERING COLUMN ................................................................................................................................................29
RECOVERY SYSTEM ................................................................................................................................................31
HEAD LIFT .................................................................................................................................................................33
BATTERY ....................................................................................................................................................................35
BATTERY CHARGER ................................................................................................................................................36
SEAT ASSEMBLY .......................................................................................................................................................37
DISK SCRUB HEAD ..................................................................................................................................................39
ORBITAL SCRUB HEAD ...........................................................................................................................................41
SIDE SQUEEGEE .......................................................................................................................................................43
SQUEEGEE LIFT ........................................................................................................................................................45
SQUEEGEE .................................................................................................................................................................46
CONTROLLER ...........................................................................................................................................................47
ELECTRICAL HARNESSES......................................................................................................................................48
ELECTRICAL DIAGRAMS ����������������������������������������������������������������������������������������������������������������������������������������������49

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SAFETY INFORMATION
WARNING: A potentially hazardous situation that, if not avoided, could result in death or serious injury�
CAUTION: A potentially hazardous situation that, if not avoided, could result in moderate injury or serious property
damage�
NOTE: Information that will prevent premature equipment failure or minor property damage�
WARNING: This product can expose you to chemicals including lead and lead compounds which are known to the State
of California to cause cancer and birth defects or other reproductive harm. For more information go to www.
P65Warnings.ca.gov.
WARNING: This machine is not equipped with explosion proof motors. Never use near ammable or reactive materials, liquids,
vapors or combustible dusts. Electric motors spark internally during operation and could cause a ash re or explosion.
WARNING: Batteries emit hydrogen and oxygen gas.
• Keep sparks and open ame away.
• Do not smoke near the machine.
• Charge batteries in a well-ventilated area with the battery compartment open.
WARNING: Do not plug in the charger cable if wall cord or battery harness is damaged.
WARNING: Disconnect battery cables before servicing.
WARNING: Do not wear jewelry when working near moving or electrical components.
WARNING: Do not use the machine as a means for transport.
WARNING: Never allow children to play on or around machine.
WARNING: Do not bump into shelves or scaoldings, especially where there is a risk of falling objects.
WARNING: Support the machine on safety stands before working underneath.
WARNING: Do not operate the machine:
• Unless trained and authorized.
• Unless operator manual has been fully read and understood.
• While using cell phones or other electronic devices.
• Under the inuence of drugs or alcohol.
• With any part of the machine not functioning properly.
• With the brake disabled.
• In areas where ammable vapors, liquids, or combustible dusts are present.
• In low light areas where the operators vision is impaired.
• In areas with possible falling objects.
WARNING: Before operating the machine:
• Check the machine and batteries for uid leaks.
• Check the steering and brake systems for proper operation.
WARNING: While operating the machine:
• Operate the machine only as described in this manual.
• Allow the machine to fully stop before getting o.
• Keep all body parts inside the machine while moving.
• Do not carry passengers on the machine.
• Follow all safety instructions and guidelines specic to your facility or environment.

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CAUTION: Keep hands away from spinning brushes.
CAUTION: Do not modify the machine from its original design.
CAUTION: Wear non-slip shoes when operating machine.
CAUTION: Reduce speed when turning or operating on inclines and slippery surfaces.
CAUTION: Use Bromine only in your tank treatment system! Do not use chlorine. Chlorine can interact with ammonia-based
detergents and cause harmful fumes.
CAUTION: Follow mixing and handling instructions on chemical containers.
CAUTION: Remove the batteries, use a jack, and get assistance before lifting the machine.
CAUTION: Park and service the machine on a level surface and remove the key.
CAUTION: Always wear protective clothing, gloves and goggles when handling and charging batteries.
CAUTION: Avoid moving parts and do not wear loose jackets, shirts or sleeves when servicing.
NOTE: Do not hose down or use a power-spray on the machine. Electrical malfunction may occur.
NOTE: All repairs must be performed by a qualied service technician using approved replacement parts.
NOTE: To avoid damaging the oor, do not allow the brush/pad to operate while the machine is stationary.
NOTE: Use a ramp with no more than a 12% incline when loading or unloading the machine.
NOTE: Use tie down straps to secure the machine to the truck or trailer during transport.
NOTE: Discontinue use and report machine damage or faulty operation immediately.
NOTE: Store the machine indoors where the temperature is between 32º and 104ºF (0º and 40ºC).
NOTE: Do not lower the orbital head without a pad. Doing so damages the Mighty-Lok® face.
NOTE: Failure to clean the BatteryShield® light pipe will limit the system’s ability to read the water level and will reduce
battery life.
NOTE: Do not use an extension cord. This will void the warranty on the charger.
NOTE: Batteries designed for automotive or marine and RV use are not suited for use in oor scrubbers.
NOTE: Use of an unapproved water supply or modication of an approved water supply can lead to battery system failure.
NOTE: Ensure battery charging and storage locations comply with OSHA and any governing agencies’ standards based on
your particular location and application.
NOTE: When loading/unloading machine for transport:
• Fully drain the Solution and Recovery tanks before loading.
• Transport the machine with the scrub head in the raised position.
• Ensure the ramp and truck/trailer are properly rated for the weight of the machine.
• Do not lower the Orbital Scrub Head without a pad installed.
• Chock the wheels and tie down the machine.
• Actuate the Manual Brake Release lever before attempting to manually push/move the machine.
CONTINUED
SAFETY INFORMATION

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UNPACKING THE MACHINE
TRANSPORTING THE MACHINE
Six (6) tie-down points (two on the front, two at the
front corners, and two at the rear corners) have been
provided on the frame to allow the machine to be
secured during transportation.
Ensure the machine is properly secured with suitable
tie-down straps before transporting the machine.
1. Remove outer cardboard packaging.
2. Remove the shrink wrap securing the ramp and allow the ramp (not shown) to lower to the ground.
3. Using a #2 Philips driver, remove the screws from the front and rear wood wheel chocks.
4. Using a 3/8” socket and driver or wrench, remove the screws from the tie-down straps located at each corner of the machine.
5. Turn the machine on using the key switch and carefully drive down the ramp.
6. Install the rear squeegee assembly (refer to the RECOVERY SYSTEM of this manual).
NOTE: Fully drain the Solution and Recovery tanks before loading.
NOTE: Ensure the ramp and truck/trailer are properly rated for the weight of the machine.
NOTE: Use a ramp with no more than a 12% incline to load and unload the machine.
NOTE: Transport the machine with the scrub head in the raised position.
NOTE: Do not lower the Orbital Scrub Head without a pad installed. Doing so will damage the Mighty-Lok® face.
NOTE: Remove the rear squeegee assembly before transporting the machine.
NOTE: Chock the wheels and tie down the machine.
NOTE: Actuate the Manual Brake Release lever before attempting to manually push/move the machine.

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CONTENTS
BATTERIES
SELECTION
INSTALLATION
WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of
California to cause cancer and reproductive harm, and during charging, strong inorganic acid mists containing sulfuric
acid are involved, a chemical known to the State of California to cause cancer. Wash hands after handling. For more
information go to www.P65Warnings.ca.gov.
WARNING: Batteries emit hydrogen and oxygen gas.
• Keep sparks and open ame away.
• Do not smoke near the machine
• Charge batteries in a well-ventilated area with the battery compartment open
WARNING: Do not wear jewelry when working near moving or electrical components.
CAUTION: Park and service the machine on a level surface and remove the key.
CAUTION: Always wear protective clothing, gloves and goggles when handling and charging batteries.
NOTE: All repairs must be performed by a qualied service technician using approved replacement parts.
NOTE: Failure to clean the BatteryShield® light pipe will limit the system’s ability to read the water level and will reduce
battery life.
NOTE: Batteries designed for automotive or marine and RV use are not suited for use in oor scrubbers.
The machine requires four 6V Lead Acid or AGM Deep Cycle batteries designed for use in oor scrubbers applications. Maximum
battery dimensions are:
• Width: 6.85” (174mm)
• Length: 12.17” (309mm)
• Height:14.41” (366mm)
1. Open the Seat Assembly and the Recovery Tank.
2. Use a lifting device capable of lifting and transporting the batteries safely.
3. Move the batteries into position (as shown below).
4. Connect the batteries in a series to obtain an overall voltage of 24V.
5. Fully charge the batteries before use.
FRONT

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NEVER:
• Add acid to a battery.
• Smoke near batteries.
• Charge a frozen battery.
• Leave an acid spill unattended.
• Store batteries unless they are fully charged.
• Charge a battery when the temperature is above 122°F (50°C).
• Charge a ooded battery without securing vent caps on the cells.
• Place objects on top of batteries, which can cause a short circuit.
SERVICING LEAD ACID BATTERIES (NON-HYDROLINK® MODELS)
REQUIRED EQUIPMENT
SAFETY
WATERING
CLEANING & INSPECTION
• Eye protection
• Acid resistant gloves
• Distilled water
• Baking soda to neutralize acid spills
ALWAYS:
• Neutralize acid spills with baking soda and water.
• Use insulated tools to verify connections are tight.
• If contact with electrolyte (sulfuric acid) occurs, ush with large amounts of water.
• Use only distilled water (tap water can contain contaminants that will damage the
battery).
• Remove the caps and place them upside down to check electrolyte levels.
• For discharged or partially charged batteries, add just enough water to cover the
plates.
• Fully charge the batteries.
• Add distilled water to a level of 1/8” (0.125”) below the vent well.
• Fluid on the top of a battery may mean it is being over-watered or overcharged.
• Check cleanliness and keep terminals and connectors free of corrosion.
• Clean with a solution of one cup baking soda to one gallon of water.
• Do not allow cleaning solution to get inside the battery.
• Rinse with water and dry with a clean cloth.
• Keep the area around batteries clean and dry.
• Properly secure all vent caps.
• Check battery cables and connections. Replace any damaged cables and tighten any loose connections.

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SERVICING LEAD ACID BATTERIES WITH HYDROLINK® WATERING
SYSTEM
1. Position the container of distilled water below the level of the top of the batteries to prevent siphoning.
2. Place the end of the watering system hose in the distilled water and squeeze the bulb to ll the system.
3. Remove the dust cover from the Hydrolink® snake connected to the batteries.
4. Connect the coupler on the Hydrolink® snake to the coupler on the watering system using the quick disconnect ttings.
5. While squeezing the hand pump, observe the ow indicator (spinning red balls). As the batteries begin to ll, the spinning of the
ow indicator balls will slow. Batteries are full when the ow indicators completely stop spinning.
NOTE: Battery systems may take more than 1/2 gallon of water once the BatteryShield® light has illuminated. Failure to actuate the
hand pump until the ow indicator stops spinning will result in batteries being under or unevenly serviced which will reduce
battery life.
6. When the ow indicator stops, and not before, disconnect the coupler by depressing the push button on the watering system
coupler.
NOTE: Leaving the watering system connected could result in the batteries being over lled. Disconnecting the watering system
before the ow indicator stops spinning will result in batteries being under serviced and battery life will be reduced.
7. Replace the dust cover on the Hydrolink® snake.
BATTERYSHIELD®AUTOMATED WET BATTERY PROTECTION
SYSTEM
Machines equipped with BatteryShield® technology have a sensor installed on one of the battery caps and a red LED indicator located
on the Control Panel. This sensor monitors the water level in the batteries and the LED communicates to the operator that the batteries
require servicing. When the BatteryShield® LED is lit, the scrub head is disabled until battery servicing has been performed.
• When the key switch is turned on, the BatteryShield® system will check the water level of the batteries.
• If the LED turns o, there is sucient water in the batteries.
• If the LED remains on (without ashing), the batteries require servicing and the scrub head will not run.
• If the LED ashes intermittently, the BatteryShield® light pipe must be cleaned (instructions below).
NOTE: Failure to clean the BatteryShield® light pipe will limit the system’s ability to read the water level and will reduce battery life.
• If the BatteryShield® LED indicates the need for servicing, turn o the key switch and service the batteries as described above.
• After completing the Hydrolink® watering system procedure, turn the key switch back on and verify the LED turns o.

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CLEANING THE BATTERYSHIELD®SENSOR LIGHT PIPE
1. Locate and remove the battery cap with the BatteryShield® sensor module.
NOTE: Never remove the BatteryShield® sensor from the battery cap. Doing so will cause the BatteryShield® system to function
improperly.
NOTE: Take care not to damage the battery cap oats or the BatteryShield® sensor light pipe.
2. Thoroughly wipe the clear BatteryShield® light pipe with a clean rag, giving special attention to the tip.
3. With the battery cap still removed, cycle the key switch on to verify that the BatteryShield® LED remains on.
4. Turn o the key switch.
5. Carefully install the battery cap.
NOTE: Whenever the battery cap is removed, ensure the Hydrolink® snake port is fully seated in the cap when maintenance is
complete.
6. Complete the Hydrolink® watering procedure described above.
7. Turn on the key switch and verify the light remains o.
8. The machine is ready for use.
CAUTION: Always wear protective clothing, gloves and goggles when handling and charging batteries.
NOTE: All repairs must be performed by a qualied service technician using approved replacement parts.