Advance acoustic 56314009 User manual

5/03 revised 10/09 Form Number 56043089
AquaRide™
SERVICE MANUAL
Advance MODEL 56314009

2- FORM NO. 56043089 - AquaRide™
GENERAL INFORMATION ...................................................................................................................................................2
SAFETY INSTRUCTIONS .................................................................................................................................................... 3
SPECIFICATIONS & MAINTENANCE...............................................................................................................................4-6
PM CHECKLIST ................................................................................................................................................................7-8
KNOW YOUR MACHINE.................................................................................................................................................9-15
STEERING SYSTEM.....................................................................................................................................................16-17
STEERING COLUMN ASSEMBLY SHROUD REMOVAL ................................................................................................16
STEERING CHAIN REMOVAL AND TENSIONING.......................................................................................................... 17
WHEEL DRIVE SYSTEM...............................................................................................................................................18-27
GENERAL FUNCTIONAL OVERVIEW.............................................................................................................................18
DRIVE MOTOR SYSTEM CONTROLLER FUNCTION OVERVIEW ...............................................................................18
WHEEL DRIVE TROUBLESHOOTING GUIDE................................................................................................................ 21
STEERING SPINDLE & WHEEL DRIVE MOTOR ASSEMBLY REMOVAL......................................................................22
DRIVE TIRE REMOVAL....................................................................................................................................................22
BRAKE ADJUSTMENT..................................................................................................................................................... 24
DRIVE WHEEL BRAKE STRAP REPLACEMENT ...........................................................................................................25
WHEEL DRIVE MOTOR CARBON BRUSH INSPECTION .............................................................................................. 25
POTENTIOMETER REMOVAL & TESTING..................................................................................................................... 26
POTENTIOMETER INSTALLATION & ADJUSTMENT.....................................................................................................27
DRIVE PEDAL NEUTRAL ADJUSTMENT & PEDAL REPLACEMENT............................................................................ 27
SCRUB BRUSH SYSTEM.............................................................................................................................................28-33
FUNCTIONAL OVERVIEW............................................................................................................................................... 28
SCRUB BRUSH SYSTEM TROUBLESHOOTING...........................................................................................................29
SCRUB DECK REMOVAL ................................................................................................................................................ 30
BRUSH DECK ACTUATOR REMOVAL............................................................................................................................ 31
SCRUB BRUSH MOTOR(S) REMOVAL...........................................................................................................................32
SCRUB BRUSH BELT REPLACEMENT .......................................................................................................................... 32
SCRUB BRUSH SYSTEM MAINTENANCE..................................................................................................................... 33
SCRUB BRUSH REMOVAL & INSTALLATION ................................................................................................................ 33
SOLUTION SYSTEM.....................................................................................................................................................34-39
FUNCTIONAL OVERVIEW............................................................................................................................................... 34
OPERATIONAL OVERVIEW OF THE SOLUTION PUMP & SOLENOID FUNCTIONS...................................................35
TROUBLESHOOTING GUIDE..........................................................................................................................................36
MAJOR COMPONENTS SPECIFICATIONS.................................................................................................................... 37
NOZZLE MAINTENANCE................................................................................................................................................. 37
NOZZLE FIXTURE INSTALLATION .................................................................................................................................37
SOLUTION PUMP REMOVAL ..........................................................................................................................................38
SOLUTION SOLENOID VALVE ASSEMBLY REMOVAL.................................................................................................. 38
SOLENOID VALVE DISASSEMBLY AND CLEANING...................................................................................................... 39
RECOVERY SYSTEM ...................................................................................................................................................40-48
FUNCTIONAL OVERVIEW............................................................................................................................................... 40
VACUUM MOTOR CIRCUIT OVERVIEW.........................................................................................................................41
VACUUM SYSTEM ELECTRICAL CIRCUIT OVERVIEW................................................................................................ 42
TROUBLESHOOTING GUIDE..........................................................................................................................................43
VACUUM / RECOVERY SYSTEM SERVICE MAINTENANCE CHECKLIST...................................................................43
MAINTENANCE OF VACUUM FILTER AND FLOAT CAGE............................................................................................. 43
VACUUM MOTOR(S) REMOVAL .....................................................................................................................................45
RECOVERY TANK REMOVAL .........................................................................................................................................45
RECOVERY TANK BLADDER REMOVAL........................................................................................................................46
RECOVERY TANK BLADDER INSTALLATION................................................................................................................46
VACUUM SHOES REMOVAL FOR MAINTENANCE .......................................................................................................48
TABLE OF CONTENTS

FORM NO. 56043089 - AquaRide™- 1
TABLE OF CONTENTS
ELECTRICAL SYSTEM .................................................................................................................................................49-76
BATTERIES / CHARGERS SPECIFICATIONS ................................................................................................................49
INSTALL THE BATTERIES............................................................................................................................................... 49
DESCRIPTION OF THE BATTERY LOW VOLTAGE CUTOUT FEATURE ...................................................................... 50
DESCRIPTION OF THE BATTERY CONDITION INDICATORS ...................................................................................... 50
CHARGING THE BATTERIES.......................................................................................................................................... 50
BATTERY MAINTENANCE............................................................................................................................................... 51
BATTERY TESTING ......................................................................................................................................................... 51
ACTUATOR DRIVE NUT ADJUSTMENT.....................................................................................................................52-53
CURTIS SPEED CONTROL........................................................................................................................................54-57
MAIN CONTROL BOARD FUNCTIONAL OVERVIEW.....................................................................................................58
MAIN CONTROL BOARD TROUBLESHOOTING GUIDE ............................................................................................... 58
MAIN CONTROLLER ERROR CODES.......................................................................................................................58-59
MAIN CONTROLLER SERVICE TEST MODE............................................................................................................60-63
MAIN CONTROL BOARD SPECIAL PROGRAM OPTIONS.......................................................................................64-69
ELECTRICAL COMPONENT LOCATION (before SN 1837636)...................................................................................... 71
WIRING SCHEMATIC (before SN 1837636) .................................................................................................................... 72
WIRING DIAGRAM (before SN 1837636) ........................................................................................................................ 73
WIRING DIAGRAM (after SN 1837636) ........................................................................................................................... 74
WIRING SCHEMATIC (after SN 1837636) ....................................................................................................................... 75
ELECTRICAL COMPONENT LOCATION (after SN 1837636)......................................................................................... 76
Note: All references to right, left, front, or rear in this manual are as seen from the operator’s stand-point.

2- FORM NO. 56043089 - AquaRide™
INTRODUCTION
This manual will help you get the most from your Advance Rider Extractor. Read it thoroughly before servicing the machine.
Note: Bold numbers and letters in parentheses and underlined indicate an item illustrated on pages 9-10 i.e. (B).
This product is intended for commercial use only.
PARTS AND SERVICE
Repairs, when required, should be performed by your Authorized Advance Service Center, who employs factory trained service personnel, and
maintains an inventory of Advance original replacement parts and accessories.
Call the ADVANCE DEALER named below for repair parts or service. Please specify the Model and Serial Number when discussing your
machine.
(Dealer, affix service sticker here.)
NAME PLATE
The Model Number and Serial Number of your machine are shown on the Nameplate on the machine. This information is needed when ordering
repair parts for the machine. Use the space below to note the Model Number and Serial Number of your machine for future reference.
MODEL NUMBER ________________________________________
SERIAL NUMBER ________________________________________
TRANSPORTING THE MACHINE
CAUTION!
Before transporting the machine on an open truck or trailer, make sure that . . .
• The machine is tied down securely - see tie-down locations (26).
•All access doors and covers are secured (tape and strap as necessary).
•The machine parking brake is set.
TOWING
CAUTION!
If the machine must be towed or pushed, make sure the Key Switch (Main Power) (J) is in the OFF position and do not move the
machine faster than a normal walking pace (2-3 mph, 3-5kph) and for short distances only.
OTHER MANUALS AVAILABLE
The following manuals are available from the Advance Literature Service Department, for your Rider Scrubber:
•Parts List - Form Number 56042439
•Operation Manual - Form Number 56041540 (Danish, Norwegian, Swedish, Finnish)
56041541 (English, German, French, Netherlands)
56041542 (Spanish, Portuguese, Italian, Greek)
56041627 (English, Spanish)
GENERAL INFORMATION

FORM NO. 56043089 - AquaRide™- 3
CAUTIONS AND WARNINGS
SYMBOLS
Advance uses the symbols below to signal potentially dangerous conditions. Always read this information carefully and take the
necessary steps to protect personnel and property.
DANGER!
Is used to warn of immediate hazards that will cause severe personal injury or death.
WARNING!
Is used to call attention to a situation that could cause severe personal injury.
CAUTION!
Is used to call attention to a situation that could cause minor personal injury or damage to the machine or other property.
GENERAL SAFETY INSTRUCTIONS
Specific Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.
WARNING!
•This machine shall be used only by properly trained and authorized persons.
•While on ramps or inclines, avoid sudden stops when loaded. Avoid abrupt sharp turns. Use low speed down hills. Clean only
while ascending (driving up) the ramp.
•Keep sparks, flame and smoking materials away from batteries. Explosive gases are vented during normal operation.
•Charging the batteries produces highly explosive hydrogen gas. Charge batteries only in well-ventilated areas, away from open
flame. Do not smoke while charging the batteries.
•Remove all jewelry when working near electrical components.
•Turn the key switch off (O) and disconnect the batteries before servicing electrical components.
•Never work under a machine without safety blocks or stands to support the machine.
•Do not dispense flammable cleaning agents, operate the machine on or near these agents, or operate in areas where flammable
liquids exist.
•Do not clean this machine with a pressure washer.
CAUTION!
•This machine is not approved for use on public paths or roads.
•This machine is not suitable for picking up hazardous dust.
•When operating this machine, ensure that third parties, particularly children, are not endangered.
•Before performing any service function carefully read all instructions pertaining to that function.
•Do not leave the machine unattended without first turning the key switch off (O), removing the key and applying the parking
brake.
•Turn the key switch off (O) before changing the brushes, and before opening any access panels.
•Take precautions to prevent hair, jewelry, or loose clothing from becoming caught in moving parts.
•Use caution when moving this machine in below freezing temperature conditions. Any water in the solution or recovery tanks or
in the hose lines could freeze, causing damage to valves and fittings. Flush with windshield washer fluid.
•The batteries must be removed from the machine before the machine is scrapped. The disposal of the batteries should be safely
done in accordance with your local environmental regulations.
SAVE THESE INSTRUCTIONS

4- FORM NO. 56043089 - AquaRide™
SPECIFICATIONS
General Specifications English (Metric)
Machine Length 60 in. (152cm)
Machine Height 53 in. (134.6cm)
Machine Chassis Width w/out deck 29 in. (73.6cm)
Machine Width w/deck 31 in (78.7cm)
Total Rated Machine Current (2) brush 65 Amps
Solution Tank Capacity 45 gal. (170l.)
Recovery Bladder Capacity 25 gal. (95l.)
Solution Flow Rate (Maintenance) .55 GPM (2 liter/minute)
(Restoration) 1.0 GPM (4 liter/minute)
Sound power level
as per ISO 3744 (at operator) 73 dB(A)
Transport Speed (Fwd. Maximum) 4.2 MPH / 370 FPM (6.8km/hr)
Transport Speed (Rev. Maximum) 2.9MPH / 259 FPM (4.7km/hr)
Wheel Drive Motor 1.1 hp, 840 watt
Vacuum Motor (3 stage) (2 motors in parallel) .8 hp, 600 watt
Vacuum Water Lift (Sealed) 78 in.
(Open Hole Adapter 1”) 25 in.
Power Source (Batteries) STD (6) 6V/238 @ 20 hour rate
Battery Weight (each) 66 lbs. (30kg)
Battery Compartment Size
Height (Max.) 14.5 in. (36.8cm)
Width (Max.) 22.25 in. (56.5cm)
Length (Max.) 25.25 in. (64.1cm)
Calculated Battery Run Time 3-3.5 hrs.
Battery Chargers – see Electrical System Battery Section
Scrub Brush Size
Diameter 5.75 in. (14.6cm)
Length 27 in. (68.6cm)
Scrub Brush Motors (2) .75 HP / 560 watts
Scrub Brush Speed 900 RPM
Minimum Aisle Turn Width 63 in. (160cm)
Machine Net Weight* 625 lbs. (283kg)
Machine Gross Weight** 1,570 lbs. (712kg)
Cleaning Width (scrubbing path) 28 in. (71cm)
Coverage Rate Per Hour (Maintenance) 18,500 ft2(1720 m2)
Coverage Rate Per Hour (Restoration) 8,000 ft2(745 m2)
Approvals: ETL and CE
*Net Weight: Standard machine without options, empty solution and recovery tanks, without removable scrub brushes and no batteries installed.
**Gross Weight: Standard machine without options, full solution tank and empty recovery tank, with removable scrub brushes and 305 AH
batteries.
***Listings for watts are maximum values.

FORM NO. 56043089 - AquaRide™- 5
SPECIFICATIONS

6- FORM NO. 56043089 - AquaRide™
MAINTENANCE SCHEDULE
Maintenance intervals given are for average operating conditions. Machines used in severe operational environments may require service more
often.
MAINTENANCE ITEM Daily Weekly Monthly Yearly
Charge Batteries •
Check/Clean Tanks & Hoses •
Check/Clean/ Power Brush(s) •
Check/Clean Vacuum Shoes •
Check/Clean Vacuum Shut-Off Float •
Check/Clean the vacuum motor foam filter(s) •
Empty Debris Hopper •
Clean Spray Nozzles •
Check Each Battery Cell(s) Water Level •
Inspect Brush Deck Skirts •
Inspect and clean Solution Filter •
Check Foot/ Parking Brake for Wear & Adjustment •
Lubrication - Grease Fittings •
* Check Carbon Brushes •
Note: See the individual machine system sections for maintenance information.
* Have Advance:
Check vacuum motor carbon brushes (Qty 2) once a year or after 300 operating hours.
Check brush motor carbon brushes (Qty 4) once a year or after 500 operating hours.
Note if the vacuum or brush motor brushes are 9.5mm (3/8 inches) or shorter, replace them.
Check wheel drive motor carbon brushes every 500 operating hours. The original length of each brush is 20mm (25/32 inches). Replace when
shorter than 9.5 mm (3/8 inches) to obtain the same motor efficiency as a new brush.
WARNING!
Turn the key switch off, set the parking brake and disconnect the battery before servicing the machine.
VACUUM SHOE MAINTENANCE
Check the vacuum shoes daily, they can be removed to aid in cleaning, see “Removing the Vacuum Shoes”. Remove any built-up string, hair or
carpet fibers.
SPRAY NOZZLE MAINTENANCE
Remove the spray nozzles once a week. Soak the nozzles overnight in a vinegar solution to remove chemical deposits.
LUBRICATING THE MACHINE
Once a month, pump a small amount of grease into each grease fitting on the machine until grease seeps out around the bearings.
Grease fitting locations are:
• Steering Wheel Shaft Universal joint
Once a month, apply light machine oil to lubricate the:
• Steering Chain
• General Pivot Points For the Brush Deck Linkage
• Scrub Deck Adjustment Knobs (4)
CLEANING THE VACUUM MOTOR FILTERS
Clean the vacuum motor filters daily with compressed air. For extremely dirty filters, wash with warm, soapy water and rinse thoroughly with clean
water. Allow the filters to dry completely before re-installing in the machine. MAINTENANCE NOTE: Keep a second set of filters on hand to use
while first set is drying.
POWER BRUSH MAINTENANCE
Check the brush(s) daily. Remove any built-up string, hair or carpet fibers. Check the bristle length. Have a service technician change the brush(s) when the brush
bristles are worn to 1 inch (25mm).
MAINTENANCE

FORM NO. 56043089 - AquaRide™- 7
Copyright 2003 Nilfisk-Advance. Page 1 of 2 2/21/2001
Advance AquaRide
PM Checklist Defect Codes
Customer A needs adjustment
Bbinding
Address C dirty or contaminated
Ddamaged, bent or torn
City St Zip Lleaks
Mmissing
Model Serial Hours Wworn out
Ref OPERATIONAL INSPECTION ITEMS OK Defect Codes
(circle)
Does
Not
Work
1 Steering A B
2 Drive Pedal Operation (check for Fwd/Rev Drive & any neutral creep) A B D
3 Seat Safety Switch A D
4 Brakes (Service & Parking) A B W
5 Drive System Performance (reference SVR Manual for Curtis drive programmer speed
changes) noisy sluggish
6 Scrub System (Raise/Lower and test auto scrubbing functions Maintenance &
Restoration) A B
7 Vac Shoe Recovery System (Raise/Lower and auto lift in reverse function) (must be
programmed on) A B
8 Vacuum Performance (sealed water lift 78" and 1- inch open hole adapter 25 inches) C L W
9 Solution Control (On/Off and flow volume Maintenance & Restoration) A B L
10 Emergency Battery Disconnect Control Lever B D
11 Tilt Steering Mechanism and Seat A B D
12 Optional Accessories (headlight, safety beacon, etc.) D
13 Main Control Board Special Program Options (check all applicable program settings,
reference SVR Manual 56043089); Example, Fault Recall Mode, Etc. Program as needed
14 Battery Charger Operation D
Ref VISUAL INSPECTION ITEMS Comments OK Defect Codes
(circle)
Does
Not
Work
15 Scrub Brushes, check for wear and rotate Cylindrical A B D W
16 Scrub Brush Motors Carbon Brushes B L W
17 Scrub Brush Drive Belt, wear and tension A D W
18 Scrub Brush Deck Actuator Motor A B D W
19 Brush Deck Idler Assembly Bearings D M
20 Scrub Deck Skirts A B W
21 Solution Solenoid Valves (Maintenance & Restoration) C L
22 Solution Flow Control Valve A B D W
23 Solution Tank, Delivery Hoses & Filter Clean Filter Screen C L
24 Vacuum Motor Carbon Brushes Wear Limit 3/8” W
25 Vacuum Motor Gaskets and Filters L W
26 Vacuum Float Ball & Cage Assembly Clean Float C M
27 Recovery Tank Cover Gasket C D L
28 Recovery Tank Drain Hose & Cap Flush C L
29 Vacuum Pick-Up Tool & Hoses Back flush C L

8- FORM NO. 56043089 - AquaRide™
Copyright 2003 Nilfisk-Advance. Page 2 of 2 2/21/2001
Ref VISUAL INSPECTION ITEMS (continued) Comments OK Defect Codes
(circle)
Does
Not
Work
30 Battery Pack Condition (clean & water) Load Test C W
31 Front Drive Wheel Motor Carbon Brushes C W
32 Front Drive Tire (rim fastener torque) Tread Wear W
33 Brake Band Lining Wear Adjust Free Play A B W
34 Drive Pedal Linkage (neutral return) A B
35 Steering Chain (lubricate & tension) 1/4” Deflection A B C
36 Steering Column (knob & plunger spring) also Universal Joint Grease A D
37 Rear Wheels W
38 Sweep Debris Tray C
NOTE: For additional service information see service manual form number 56043089 and
operator manuals form number 56041627.
Defect Codes A needs adjustment C dirty or contaminated Mmissing
B binding Ddamaged, bent or torn Wworn out
Lleaks
WORK COMPLETED BY: ACKNOWLEDGED BY:
Service Technician Signature Date Customer Signature Date

FORM NO. 56043089 - AquaRide™- 9
1 Recovery Tank Cover
2 Solution Tank Fill Cover
3 Operator’s Seat
4 Solution Tank Drain Hose
5 Steering Wheel Tilt Adjust Knob
6 Brake Pedal / Parking Brake
7 Solution Spray Jets
8 Drive Pedal, Directional/Speed
9 Vacuum Shoes
10 Drive and Steer Wheel
11 Wheel Drive Circuit Breaker
12 Control Circuit Circuit Breaker
13 Emergency Stop Switch / Battery Disconnect
14 Brush Deck
15 Rear Wheel
16 Battery Compartment (under seat)
17 Recovery Bladder Shutoff Float
18 Vacuum Motor Filter Housing
19 Recovery Bladder
20 Solution Filter
21 Recovery Bladder Drain Hose (rear of machine)
22 Machine Battery Connector
23 Control Panel
24 Debris Hopper
25 Solution Control Valve
26 Tie Down Locations (3)
KNOW YOUR MACHINE

10 - FORM NO. 56043089 - AquaRide™
A Scrub OFF Indicator
B Scrub OFF Switch
C Maintenance Mode Indicator
D Maintenance Mode Switch
E Restoration Mode Indicator
F Restoration Mode Switch
G Hourmeter Display
H Accessory Vacuum Indicator
I Accessory Vacuum ON / OFF Switch
J Key Switch / Main Power
K Battery Condition Indicators
K1 Battery Condition Indicator (RED)
K2 Battery Condition Indicator (YELLOW)
K3 Battery Condition Indicator (GREEN)
L Speed Select Switch (extract / transport)
M Speed Select Indicator
N Horn Switch
O Vacuum Switch
P Vacuum System Indicator
Q Solution System Indicator
R Solution Switch
CONTROL PANEL

FORM NO. 56043089 - AquaRide™- 11
KNOW YOUR MACHINE DESCRIPTIONS:
Recovery Tank Cover (1) – Open to access Recovery Bladder for rinsing and/or cleaning Float Cage.
Solution Tank Fill Cover (2) – Open to fill the solution tank, only use low-sudsing liquid detergents designed for carpet extraction. The area around
the recovery bladder inside the recovery tank also holds solution. Total capacity is 40 gallons (151 Liters).
Operator’s Seat (3) – The machine operator sits here. The seat has a safety switch which prevents the machine from moving without an operator
in the seat.
Solution Tank Drain Hose (4) – Used to empty the solution tank.
Steering Wheel Tilt Adjust Knob (5) – Push down on this knob to adjust the Steering Wheel up or down.
Brake Pedal / Parking Brake (6) – Push down to stop machine. NEVER leave machine unattended without setting Parking Brake.
Solution Spray Jets (7) – Based upon which extraction mode is selected (maintenance or restoration) the solution will be sprayed out one of the
two different jets.
Drive Pedal, Directional / Speed (8) – The operator can make the machine go forward by pushing forward on it, or reverse by pulling backward on
it. The speed is variable depending on how far forward or backward the pedal is moved.
Vacuum Shoes (9) – Removes excess solution from carpet after cleaning.
Drive and Steer Wheel (10) – Wheel drive motor attached to this wheel to propel machine either forward or reverse. Also attached to Steering
Wheel for steering left or right.
Wheel Drive Circuit Breaker (11) – Provides overload protection to machine’s wheel drive motor, 45 Amp. If it trips, it will pop out. To reset, wait
one minute and press the button back in. If any breaker trips repeatedly, have the machine serviced.
Control Circuit Circuit Breaker (12) – Provides overload protection, 10 Amp. If it trips, it will pop out. To reset, wait one minute and press the
button back in. If any breaker trips repeatedly, have the machine serviced.
Emergency Stop / Battery Disconnect (13) – Push in on lever to disconnect batteries.
Brush deck (14) – Contains brush drive motor(s), brush(s) and solution spray jets.
Rear Wheel (15) – These two wheels along with the drive wheel, support the machine. Power and steering are supplied through the front drive
wheel.
Battery Compartment (16) – Batteries stored here, flip seat panel up to access.
Recovery Bladder Shutoff Float (17) – Shuts off vacuum when recovery bladder is full.
Vacuum Motors’ Filter Housing (18) – Location of Vacuum Motors air intake filters.
Waste Water Bladder (19) – Contains waste water as it is recovered from carpet. Total capacity of XX gallons (XX Liters).
Solution Filter (20) – Filters solution prior to entering pump and being sprayed on floor.
Recovery Drain Hose (21) – Used to empty the recovery bladder.
Machine Battery Connector (22) – Batteries plug into this connector, disconnect to charge batteries.
Control Panel (23) – Operator Controls found here, see “FUNCTIONAL DESCRIPTION OF CONTROL SWITCHES”.
Debris Hopper (24) – Collects debris that has been swept up by the machine. Empty and clean daily.
Solution Control Valve (25) – This valve should be fully open whenever extracting. Only close this valve before removing the solution filter to
prevent loss of solution.
KNOW YOUR MACHINE

12 - FORM NO. 56043089 - AquaRide™
FUNCTIONAL DESCRIPTION OF CONTROL SWITCHES:
The controls on the AquaRide™were designed with one touch operation in mind. For single pass extracting the user can simply depress one switch
and all systems on the machine will be ready to go.
For most single-pass extracting operations, the operator should only need to use the top three switches on the control panel. These are the Scrub
System Off, Maintenance Extract Mode, and Restoration Extract Mode switches. In the maintenance mode the solution spray is directed at the
scrub brush and the flow rate is reduced. The travel speed is limited to a medium speed. In the restoration mode the solution spray is directed at
the carpet ahead of the scrub brush and the flow is at maximum. The travel speed is limited to a slow speed.
Scrub System Off Switch (B) - Pressing this switch when the scrub system is active will cause the following to occur:
• The scrub brush(s) will turn off and the scrub deck will raise to the up position
• The solution flow will be stopped
• The vacuum will shut off after a 10 second delay
• The travel speed limit will return to the transport speed setting
Maintenance Extract Mode Switch (D) – If the scrub system is off, pressing this switch will cause the following to occur:
• The scrub system will be enabled with the system configured for maintenance mode and the scrub deck will be lowered
• The vacuum system will be enabled
• The solution system will be enabled for maintenance mode
• The travel speed will be limited to the maintenance mode speed setting
• As soon as the throttle is moved from the neutral position the scrub brush(s) will start turning and the vacuum will turn on. If the direction
is forward the solution flow will start. If the direction is reverse the solution flow will be stopped. It is possible to program the control to
automatically raise the scrub deck in reverse. Refer to the Electrical System “Main Control Board Special Program Options” for details.
If the restoration mode is selected, pressing this switch will select the maintenance mode. If the maintenance mode is already selected, pressing
this switch will have no effect.
Restoration Extract Mode Switch (F) – If the scrub system is off, pressing this switch will cause the following to occur:
• The scrub system will be enabled with the system configured for restoration mode and the scrub deck will be lowered
• The vacuum system will be enabled
• The solution system will be enabled for restoration mode
• The travel speed will be limited to the restoration mode speed setting
• As soon as the throttle is moved from the neutral position the scrub brush(s) will start turning and the vacuum will turn on. If the direction
is forward the solution flow will start. If the direction is reverse the solution flow will be stopped. It is possible to program the control to
automatically raise the scrub deck in reverse. Refer to the Electrical System “Main Control Board Special Program Options” for details.
If the maintenance mode is selected, pressing this switch will select the restoration mode. If the restoration mode is already selected, pressing this
switch will have no effect.
KNOW YOUR MACHINE

FORM NO. 56043089 - AquaRide™- 13
FUNCTIONAL DESCRIPTION OF CONTROL SWITCHES (CONTINUED)
Accessory Vacuum ON/OFF Switch (I) - This switch is used when an external scrub wand is used. Pressing this switch will turn the vacuum
on continuously without regard to the throttle position. It will also enable the solution pump. If the scrub system was on it will be turned off. This
includes turning off the scrub brush(s) and raising the scrub deck and turning the solution flow to the scrub deck off. NOTE: Automatic shutoff of the
vacuum motor when the recovery bladder is full is disabled when the wand is enabled. The float in the recovery bladder will still prevent water from
entering the vacuum motor, but the motor will not shut off.
Key Switch / Main Power (J) – Main Power Switch.
Speed Select Switch (L) – This switch will allow the operator to select a faster travel speed while the scrub system is enabled thereby allowing
extracting at a higher rate of speed. This option can be disabled if desired. See the Electrical System “Main Control Board Special Program Options”
for details.
The transport, maintenance mode, and restoration mode speed limits can be programmed using a Curtis handheld programmer. Refer to the
Electrical System “Main Control Board Special Program Options” for details.
Horn Switch (N) – This switch will sound the horn as long as the switch is held.
The horn also functions as an automatic back-up alarm when the throttle is moved to the reverse position. The volume of the back-up alarm is
programmable. It can also be programmed to provide an annunciation feature that will sound whenever the throttle is in the forward position. See
the Electrical System “Main Control Board Special Program Options” for details.
Vacuum Switch (O) - This switch is used to turn the vacuum system on or off. Pressing this switch will alternate between on and off. The vacuum
will only turn on when the throttle is moved from the neutral position. It will remain on for 10 seconds after the throttle returns to neutral.
The vacuum also has an automatic shutoff feature that will turn the vacuum and scrub systems off if the recovery bladder becomes full. If this occurs,
the status display will show the word “FULL”. This feature can be disabled if desired. The shutoff threshold can also be adjusted if necessary. See
the Electrical System “Main Control Board Special Program Options” for details.
Solution Switch (R) - This switch is used to turn the solution system on or off. Pressing this switch when the scrub system has been activated will
alternate between on and off. The solution flow will only turn on when the throttle is moved from the neutral position in the forward direction. The
solution flow will turn off if the throttle returns to neutral or is moved to reverse.
KNOW YOUR MACHINE

14 - FORM NO. 56043089 - AquaRide™
DESCRIPTION OF INDICATORS ON THE CONTROL PANEL:
Scrub Off Indicator (A):
• This indicator will be green if the scrub system is off and ready to be activated.
• This indicator will be red if the scrub system has been turned off and the scrub deck is not up yet, or if the scrub deck is up and there is no
weight on the seat.
• This indicator will flash red if there is a fault in the scrub system.
• This indicator will be off if the scrub system has been activated.
Maintenance Mode Indicator (C):
• This indicator will be green if the scrub system is on and the maintenance mode has been selected.
• This indicator will be yellow if the maintenance mode has been selected but the throttle is in neutral.
• This indicator will be off if the scrub system is off.
Restoration Mode Indicator (E):
• This indicator will be green if the scrub system is on and the restoration mode has been selected.
• This indicator will be yellow if the restoration mode has been selected but the throttle is in neutral.
• This indicator will be off if the scrub system is off.
Hourmeter Display (G):
• The hourmeter display will scroll the hourmeter information only if all of the systems are turned off and the Drive Pedal (8) has been in neutral
for at least ten seconds. Immediately once the key switch has been turned on the display will do a self-test (flash 8) to check all segments of
the display. Then the hourmeter information will also be displayed. The format for the display of the hours is as follows:
Example 123.4 hours
• The display will indicate 1 followed by a short blank period
• The display will indicate 2 followed by a short blank period
• The display will indicate 3 followed by a short blank period
• The display will indicate _ followed by a short blank period, this is used as a decimal point to indicate tenths of hours
• The display will indicate 4 (tenths) followed by a long blank period
• The display sequence will repeat
Accessory Vacuum Indicator (H):
• This indicator will be green when the accessory function is on.
• This indicator will be off if the accessory function is off.
Speed Selector Indicator (M):
• This indicator will be green if a scrub mode has been selected and the faster scrub speed has been selected.
• This indicator will be off if the faster scrub speed has not been selected.
Vacuum System Indicator (P):
• This indicator will be green if the vacuum is on.
• This indicator will flash green if the vacuum is in the ten second delayed-off condition.
• This indicator will be yellow if the vacuum is enabled but the throttle is in neutral.
• This indicator will flash yellow if there is a vacuum system fault.
• This indicator will be off if the vacuum is off.
Solution System Indicator (Q):
• This indicator will be green if the solution is on.
• This indicator will be yellow if the solution is enabled but the throttle is in neutral.
• This indicator will flash yellow if there is a solution system fault.
• This indicator will be off if the solution is turned off.
Power Saving Sleep Function
The AquaRide is equipped with a battery saving feature that will turn all of the machine systems and accessories off if the machine is left in an idle
state for a preset period of time. This sleep mode will only occur if the operator is not on the seat and the wand function is not in use. The sleep
mode is indicated by a short duration green flashing scrub system off indicator. The sleep function is automatically cancelled when the operator sits
on the seat or any of the control switches are pressed. The sleep delay period is adjustable from 10 to 90 minutes in 10 minute increments. The
default period is 10 minutes. It can also be disabled. Refer to the “Main Control Board Special Program Options” for changing the delay period.
KNOW YOUR MACHINE

FORM NO. 56043089 - AquaRide™- 15
DESCRIPTION OF THE BATTERY CONDITION INDICATORS
The battery condition indicator (K) consists of three lights; a green (K3), a yellow (K2) and a red (K1). A fully charged battery pack will measure
above 37.6 volts with no load applied (2.09 volts per cell). The AquaRide is equipped with a low voltage cutout feature that will turn the scrub system
off when the batteries are discharged to their minimum level. There are two different cutout levels to accommodate different battery types. See
the Electrical System “Main Control Board Special Program Options” for details. The voltage levels for the various indications are as follows (the
voltages shown represent the voltage under load):
Standard Alternate
Green 34.00+ 34.50+
Green & Yellow 33.00-33.99 34.00-34.49
Yellow 32.00-32.99 33.50-33.99
Yellow & Red 31.50-31.99 33.00-33.49
Red 31.00-31.49 32.50-32.99
Flashing Red/Cutoff <31.00 <32.50
NOTE: Refer to service manual for selection of alternate cut-off level. Once the low voltage cutout level has been reached (flashing red indicator)
the batteries must be FULLY recharged (37.6V) to reset the battery condition indicator. The scrub system will not function until the indicator has
been reset.
DESCRIPTION OF ADDITIONAL HOURMETER / STATUS DISPLAY FUNCTIONS
The single character display in the upper right corner of the control panel is primarily used as a display for the hourmeter function. This display is
also used to display the following information depending upon which mode the control is in:
•Error codes*
•Display of control system default parameters*
•Recovery tank FULL indicator*
If any of the systems on the machine are on or if the throttle is not in neutral, the display will be blank.
* NOTE: Reference (in the Electrical System manual section) the Main Control Board Troubleshooting Guide and the Control Board Special
Program Options sections. These sections will explain the machine error code descriptions and scrub system controller default parameter
changes.
KNOW YOUR MACHINE

16 - FORM NO. 56043089 - AquaRide™
STEERING SYSTEM
STEERING COLUMN ASSEMBLY SHROUD REMOVAL
Upper Column
1See Figure 1. Remove the center Wheel Adapter (A) from the steering wheel. Pry it off using a flat bladed screwdriver.
2Remove the steering shaft retainer Hex Nut (B) (use a 3/4” socket wrench) and the two Washers (C & D). Next pull straight back on the steering
wheel to remove it from the metal Wheel Adapter (E).
3Pull off the keyed metal wheel adapter from the steering shaft by using a two-jaw gear puller. With the wheel adapter off the loose Plastic Trim
Cup (F) can now be removed.
4Remove the (4) Screws (G) securing the Column Shroud (H) and pull it off from the Column Base (I).
Lower Column
1Tilt the steering wheel column as far back (close to the seat) as possible.
2Remove the tilt column release Knob (J) (threaded) from its shaft.
3Remove the (4) Screws (K) securing the Lower Shroud (L) and next pull the shroud far enough away from the column base to clear the tilt
release shaft through the shroud opening. Note: This will take some effort in prying the flexible plastic shroud around the movable tilt shaft.
4Grip the shroud and pull up to completely release it from the steering column base and the foot brake assembly.
FIGURE 1
FRON T
J
B
D
K
G
CE
F
A
I
L
H
View from back
side of panel (I)
Remove plug
to access/grease
universal joint

STEERING SYSTEM
FORM NO. 56043089 - AquaRide™- 17
FIGURE 2
STEERING CHAIN REMOVAL AND TENSIONING
1Turn the master key switch off and separate the battery pack emergency disconnect (13).
2See Figure 2. From underneath the front of the machine loosen the (4) (M) Screws and push the lower steering column to the rear of the
machine. This is done to separate the Chain (N) from the Steer Sprocket (O). Service Note: Use a 5/8” socket with 3” extension to loosen
screws and also correctly position the large hole in the Steer Plate (P) in order to access the far back left screw.
3Remove both Master Links (Q) that secure the chain to the Steer Plate (P) then remove the chain from the chassis.
4Reassemble parts in reverse order and adjust chain tension so that there is about 3/16” – 1/4” (4.7 – 6.4mm) total deflection with moderate
pressure applied at the Mid-point (R) (as shown). Service Tip Note: Use a pry bar or shims between the chassis and steer column to help
secure the tension adjustment when tightening the (4) steering column mounting screws.
Maintenance
1Inspect the chain for looseness and binding, re-tension the chain to 3/16”-1/4” (4.7 – 6.4mm) deflection by following the above adjustment
instructions.
2Keep all of the steer chain links oiled to prevent excessive wear and binding.
R
FRON T
View from under
the machine
M
O
N
Q
P

18 - FORM NO. 56043089 - AquaRide™
WHEEL DRIVE SYSTEM
GENERAL FUNCTIONAL OVERVIEW
See Figures 1 & 2. An 840-watt 1.1 HP (permanent magnet) 36V motor/gear transmission combination wheel unit (M3) is used to propel all
machines. A Curtis model 1228 PMC solid state speed controller (A1) regulates (outputs) the variable speed Fwd/Rev wheel drive motor functions.
The controller unit is located to the left of the operator seat, behind the electrical access panel. The potentiometer R1 mounted to the operator’s foot
pedal, inputs to the (A1) controller the machine operator’s desired speed and directional demands.
DRIVE MOTOR SYSTEM CONTROLLER FUNCTION OVERVIEW
See Figure 2. To make the A1 speed controllers internal control circuits operational (power it up) the two switches S1 (key) and S2 (seat) must be
closed. This circuit inputs a positive (+) 36V to the A1 speed controls pin terminal #5 (*KSI). The F2 circuit breaker 45 Amp supplies the positive
high current (load) circuit input to the B+ controller terminal (Brn/Blk wire). The black wire from the negative (-) battery standoff supplies the battery
ground input to the B- terminal for both the control and load circuits.
See Figure 3. Depressing the foot pedal in either Fwd or Rev will move the 5K Ohm (R1) potentiometer shaft off its centered balanced (neutral)
setting of approximately 2500 Ohms. With this pot shaft movement the pot’s resistance value changes which generates a variable voltage signal
(0-5 volts). These control board voltage input signals are what energizes the Fwd & Rev directional relays, which selects the motor polarity and what
also manages switches the battery voltage On and Off (**PWM) that varies the motor speed.
*KSI: Key Switch Input
**PWM: Pulse Width Modulation, also called “chopping” is a technique that switches battery voltage to the motor ON and OFF very quickly, thereby
controlling the speed of the motor.
DRIVE MODE SELECTION OPERATION OVERVIEW
The following is a list of the speed control parameters that can be adjusted using a Curtis hand held programmer:
There are four programmable speed limits on the AquaRide. These are transport speed, fast maintenance speed, maintnance/fast restore speed,
and restore speed. For the maintenance and restore modes, the fast speed is selected by pressing the speed select switch* on the control
panel.
For reference purposes, the speed control parameters below are followed by a number from 1 to 4. These are used to indicate which parameters
apply to which operating mode of the machine.
Transport mode [fastest] (scrub system off)(1)
Fast Maintenance Mode (maintenance mode, speed select indicator = on)(2)
Maintenance/Fast Restore Mode (maintenace mode, speed select indicator = off(3) OR restore mode, speed select indicator = on)
Restore Mode [slowest] (restore mode, speed select indicator = off)(4)
*Speed Select Switch: This switch will allow the operator to select a faster travel speed while the scrub system is enabled thereby allowing
extracting at a higher rate of speed. The speed select indicator will be green if a scrub mode has been selected and the faster scrub speed has
been selected. It will be off otherwise.
TABLE #1
Value Curtis Display Callout Description Factory
Programmed
Values
Approximate
Travel Speed
3.0 sec ACCEL MAX SPEED Acceleration rate [time to go from stop to maximum speed
in seconds 1, 2
3.0 sec ACCEL MIN SPEED Acceleration rate [time to go from stop to maximum speed
in seconds] 3, 4
3.0 sec REVERSE ACCEL MAX Reverse acceleration rate [time to go from stop to
maximum speed in seconds] 1, 2
3.0 sec REVERSE ACCEL MIN Reverse acceleration rate [time to go from stop to
maximum speed in seconds] 3, 4
100% M1 MAX SPEED Transport speed maximum limit [% of full throttle] 1 4.2 MPH
40% M2 MAX SPEED Fast maintenance mode speed limit [% of full throttle] 2 1.4 MPH
24% M1 MIN SPEED Maintenance/fast restore mode speed limit [% of full
throttle] 3 .8 MPH
17% M2 MIN SPEED Restore mode speed limit [% of full throttle] 4 .5 MPH
70% M1 REVERSE MAX SPEED Reverse speed maximum limit [% of full throttle] 1
30% M2 REVERSE MAX SPEED Reverse speed maximum limit [% of full throttle] 2
24% REVERSE MIN SPEED Reverse speed maximum limit [% of full throttle] 3, 4
OFF THROTTLE AUTOCAL Used for calibration of the throttle assembly