Advance acoustic Adhancer56316000(W28-C) User manual

7/08 FORM NO. 56043111
SERVICE MANUAL
Models: 56316000(W28-C), 56316001(W32-C)
Adhancer™

FORM NO. 56043111 - Adhancer™- 1
TABLE OF CONTENTS
INTRODUCTION .......................................................................................................................................................................................... 2
CAUTIONS AND WARNINGS...................................................................................................................................................................... 3
SPECIFICATIONS AND MAINTENANCE................................................................................................................................................. 4-6
PM CHECKLIST........................................................................................................................................................................................... 7
KNOW YOUR MACHINE ........................................................................................................................................................................ 8-12
SOLUTION SYSTEM ............................................................................................................................................................................ 13-19
FUNCTIONAL OVERVIEW....................................................................................................................................................................... 13
CIRCUIT OVERVIEW SOLUTION AUTO MODE..................................................................................................................................... 14
SOLUTION SYSTEM MAINTENANCE .................................................................................................................................................... 15
TROUBLESHOOTING GUIDE ............................................................................................................................................................ 15-17
SOLUTION SOLENOID VALVE REMOVAL, DISASSEMBLY AND CLEANING....................................................................................... 18
SOLUTION FILTER AND BALL VALVE REMOVAL.................................................................................................................................. 19
SOLUTION PUMP REMOVAL.................................................................................................................................................................. 19
SCRUB SYSTEM .................................................................................................................................................................................. 20-23
GENERAL BRUSH SYSTEM FUNCTIONAL OVERVIEW .................................................................................................................. 20-21
SPECIAL SCRUB SYSTEM FUNCTIONS ............................................................................................................................................... 20
SCRUB BRUSH DECK REMOVAL ..................................................................................................................................................... 22-23
SCRUB BRUSH MOTOR(S) REMOVAL ............................................................................................................................................. 22-23
SCRUB BRUSH BELT REPLACEMENT............................................................................................................................................. 22-23
SCRUB BRUSH SYSTEM MAINTENANCE........................................................................................................................................ 22-23
SCRUB BRUSH REMOVAL AND INSTALLATION.............................................................................................................................. 22-23
SCRUB BRUSH LIFT ACTUATOR REMOVAL.................................................................................................................................... 22-23
RECOVERY SYSTEM ........................................................................................................................................................................... 24-30
FUNCTIONAL OVERVIEW....................................................................................................................................................................... 24
VACUUM MOTOR CONTROL CIRCUIT OVERVIEW (AUTO MODE)..................................................................................................... 25
VACUUM/RECOVERY SYSTEM MAINTENANCE CHECKLIST ............................................................................................................. 26
MAINTENANCE OF RECOVERY TANK FLOAT SWITCH....................................................................................................................... 27
MAINTENANCE OF VACUUM MOTOR INLET SCREEN........................................................................................................................ 28
VACUUM MOTOR REMOVAL.................................................................................................................................................................. 29
RECOVERY TANK REMOVAL ................................................................................................................................................................. 30
SQUEEGEE SYSTEM........................................................................................................................................................................... 31-34
SQUEEGEE LIFT LINKAGE ADJUSTMENT............................................................................................................................................ 31
SERVICING THE SQUEEGEE................................................................................................................................................................. 32
ADJUSTING THE SQUEEGEE ................................................................................................................................................................ 32
SQUEEGEE MOUNT ASSEMBLY REMOVAL ......................................................................................................................................... 33
CASTER WHEEL REMOVAL ................................................................................................................................................................... 34
WHEEL DRIVE SYSTEM ...................................................................................................................................................................... 35-43
GENERAL FUNCTIONAL OVERVIEW................................................................................................................................................ 35-37
WHEEL DRIVE TROUBLESHOOTING GUIDE........................................................................................................................................ 38
DRIVE MOTOR TRANSAXLE REMOVAL........................................................................................................................................... 39-40
DRIVE WHEEL REMOVAL....................................................................................................................................................................... 41
(5K) POTENTIOMETER (R1) TESTING AND REMOVAL........................................................................................................................ 42
(5K) POTENTIOMETER (R1) INSTALLATION AND ADJUSTMENT................................................................................................... 42-43
(100K) POTENTIOMETER (R2) TESTING AND REMOVAL.................................................................................................................... 43
ELECTRICAL SYSTEM ........................................................................................................................................................................ 44-69
BATTERIES .............................................................................................................................................................................................. 44
DESCRIPTION OF THE LOW-VOLTAGE CUT-OUT FEATURE.............................................................................................................. 45
DESCRIPTION OF THE BATTERY CONDITION INDICATORS.............................................................................................................. 45
BATTERY CHARGING, MAINTENANCE AND TESTING ...................................................................................................................46-47
ACTUATOR DRIVE NUT ADJUSTMENT ............................................................................................................................................ 48-49
CURTIS CONTROLLER...................................................................................................................................................................... 50-53
FUNCTIONAL OVERVIEW OF MAIN CONTROL BOARD ...................................................................................................................... 54
MAIN CONTROLLER ERROR CODES ................................................................................................................................................... 55
MAIN CONTROLLER DIAGNOSTIC SERVICE TEST MODE ............................................................................................................56-57
OUTPUT CONTROLS ......................................................................................................................................................................... 58-59
MAIN CONTROL PROGRAMMING OPTIONS ................................................................................................................................... 60-64
MAIN CONTROLLER I/O TABLES........................................................................................................................................................... 65
ELECTRICAL COMPONENT LOCATION ................................................................................................................................................ 67
WIRING DIAGRAM................................................................................................................................................................................... 68
WIRING SCHEMATIC............................................................................................................................................................................... 69
APPENDIX ............................................................................................................................................................................................ 70-71
DETERGENT (AXP) SYSTEM PLUMBING SCHEMATIC........................................................................................................................ 70
DETERGENT (AXP) SYSTEM PREPARATION AND USE ...................................................................................................................... 71
Note: All references to right, left, front or rear in this manual are as seen from the operator’s standpoint.

2- FORM NO. 56043111 - Adhancer™
INTRODUCTION
This manual will help you get the most from your Nilfisk-Advance automatic scrubber. Read it thoroughly before servicing the machine.
Note: Bold numbers and letters in parentheses indicate an item illustrated on pages 8-10.
PARTS AND SERVICE
Repairs should be performed by your Authorized Nilfisk-Advance Service Center, who employs factory-trained service personnel, and maintains an inventory of
Nilfisk-Advance original replacement parts and accessories.
Call the NILFISK-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.)
NAMEPLATE
The Model Number and Serial Number of your machine are shown on the Nameplate in the battery compartment. 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.
All access doors and covers are secured (tape and strap as needed).
TOWING
CAUTION!
If the machine must be towed or pushed, make sure the Master On/Off Key Switch (A) is in the Off position and do not move the
machine faster than a normal walking pace (2-3 mph, 3-5 kph) and for short distances only. Note: Disconnecting the wheel drive
motor wiring connector will make a disabled machine easier to push.
OTHER MANUALS AVAILABLE FOR YOUR MACHINE
The manuals listed below can be found via Nilfisk-Advance’s two electronic supported databases. They are:
Nilfisk-Advance website (www.nilfisk-advance.com)
EzParts service / parts CD-ROM
Parts List - Form Number 56042469
Instructions for Use – Form Number 56041640 - (English, Spanish)

FORM NO. 56043111 - Adhancer™- 3
CAUTIONS AND WARNINGS
SYMBOLS
Nilfisk-Advance uses the symbols below to signal potentially dangerous conditions. 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.
Read all instructions before using.
GENERAL SAFETY INSTRUCTIONS
Specific Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.
WARNING!
This machine should only be used 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.
Do not operate this machine on ramps or inclines of more than a 2 percent gradient.
Only use the brushes provided with the appliance or those specified in the instruction manual. The use of other brushes may impair safety.
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 securing the machine.
Turn the key switch off (O) and remove the key, 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, recovery or detergent 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.
Do not use on surfaces having a gradient exceeding that marked on the machine.
All doors and covers are to be positioned as indicated in the instruction manual before using the machine.
Refer to the battery charger OEM product manual for additional specific battery charger warnings.
SAVE THESE INSTRUCTIONS

4- FORM NO. 56043111 - Adhancer™
TECHNICAL SPECIFICATIONS
Model Adhancer™W28-C Adhancer™W32-C
Model No. 56316000 56316001
Voltage/Power Source 36V; (6) 6-volt batteries (wet acid and gel cell available)
Battery Capacity 305 Ah
Onboard Battery Charger 36V, 25-amp, wet/gel compatible
Protection Grade IPX3
Sound Pressure Level (ISO 11201) 74.5 dB(A)/20μPa (standard)
69 dB(A)/20μPa with Sound Suppression Kit
Gross Weight 1,245 lbs. (565 kg)
Vibrations at the Hand Controls (ISO 5349-
1) 0.61 m/s2
Dimensions (w/o squeegee)
Width = 31 in. (79 cm) Width = 35 in. (89 cm)
Length = 64.5 in. (164 cm) Length = 64.5 in. (164 cm)
Height = 45 in. (114 cm) Height = 45 in. (114 cm)
Gradeability 2%
Sweep, Wash and Polish Path 28 in. (71 cm) 32 in. (81 cm)
Maximum Productivity @ 3 mph 35,640 ft2/hr 40,920 ft2/hr
3,311 m2/hr 3,802 m2/hr
Maximum Productivity @ 1.5 mph 17,820 ft2/hr 20,460 ft2/hr
1,656 m2/hr 1,901 m2/hr
Solution Tank Capacity 30 gal. (114 L)
Recovery Tank Capacity 30 gal. (114 L)
Debris Hopper Capacity 1.4 gal. (5.3 L) 1.7 gal. (6.4 L)
Solution Control Precision-flow electric pump
Solution Flow Rates Regular Flow = 0.3 gal./min. (1.14 L/min.) or 100 minutes per solution tank
Heavy Flow = 0.6 gal./min. (2.27 L/min.) or 50 minutes per solution tank
Drive System 0.5 HP (375 watt), variable forward and reverse, max speed = 3 mph (4.83 km/hr)
Drive Wheels (2) 13 in. (33 cm) dia. foam-filled, gray non-marking
Front Scrub Motor 36 VDC, .75 HP, 1800 RPM (serial #1979825 and later)
36 VDC, 1.25 HP, 3000 RPM (prior to serial #1979825)
Rear Scrub Motor 36 VDC, 1.25 HP, 3000 RPM
Front Brush Speed 900 RPM (serial #1979825 and later)
1500 RPM (prior to serial #1979825)
Rear Brush Speed 1500 RPM
Brush Size (2 per machine) 5.75 in. (15 cm) dia., 27 in. (69 cm) long, cylindrical 5.75 in. (15 cm) dia., 31 in. (79 cm) long,
cylindrical
Vacuum Motor 0.75 HP (560 watt), three-stage
Squeegee Width 43.25 in. (109.9 cm)
AXP™ Specifications
Refillable Cartridge Capacity 1.25 gal. (4.73 L)
Available Dilution Rates 1:300, 1:256, 1:200, 1:150, 1:128, 1:100, 1:64, 1:50 and
1:32
Low Detergent Warning Standard

FORM NO. 56043111 - Adhancer™- 5
TECHNICAL SPECIFICATIONS

6- FORM NO. 56043111 - Adhancer™
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 X
Check/Clean Tanks and Hoses (clean recovery tank switch and vacuum inlet screen) X
Check/Clean/Rotate the Brushes X
Check/Clean the Squeegee X
Clean Debris Hopper on Cylindrical System X
Check Each Battery Cell(s) Water Level (does not apply to gel cell batteries) X
Inspect Scrub Housing Skirts X
Inspect and clean Solution Filter X
Clean Solution Manifolds on Cylindrical System X
Purge AXPDetergent System X
Lubricate the Machine X
* Check Carbon Brushes X
Note: See the individual machine system sections for maintenance information.
* Have Nilfisk-Advance check the vacuum motor carbon motor brushes once a year or after 300 operating hours. Check the brush and drive motor carbon brushes
every 500 hours or once a year.
WARNING!
Turn the key switch off and disconnect the batteries before servicing the machine.
Check vacuum motor carbon brushes (Qty 2) once a year or after 300 operating hours.
Check brush and wheel drive motor(s) carbon brushes (Qty 4 per motor) once a year or after 500 operating hours.
The original (new) length of each carbon brush is 1” (25.4 mm) on all 36 volt machine models brush and wheel drive motors.
All motors: Replace carbon brushes when shorter than 3/8” (9.5 mm) to obtain the same motor efficiency as new brushes.
IMPORTANT!
Motor damage resulting from failure to service the carbon brushes is not covered under warranty. See the Limited Warranty
Statement.
BATTERIES AND CHARGERS
Attention: See the ELECTRICAL SYSTEM section for battery installation, battery maintenance and charger system requirements.
LUBRICATING THE MACHINE
Once a month, apply light machine oil to lubricate the:
General Pivot Points for the Squeegee Linkage (A).
Squeegee mount angle adjustment knob threads (B).
Squeegee Tool end wheels (C).
General Pivot Points for the Brush Linkage (D).
Squeegee mount wheels (E).
Once a month grease the three Scrub Deck Caster Wheels and
Swivels (F) quantity of six zerks (two per caster).
Once per quarter grease the Rear Caster Wheel Swivels (G).

ADHANCER
PM CHECKLIST
Defect Codes
Customer Aneeds adjustment
Bbinding
Address Cdirty or contaminated
Ddamaged, bent or torn
City St Zip Lleaks
Mmissing
Model Serial No. Hours Wworn out
Ref
OPERATIONAL INSPECTION ITEMS
OK
Defect Codes
(circle)
Does
Not
Work
1 Drive Paddle Operation (check for Fwd/Rev Drive and neutral creep) A B D
2 Drive System Performance (Speed Changes Min/Max) noisy sluggish
3 Scrub System (Raise/Lower, Brush Motor On/Off) A B D
4 Squeegee System (Raise/Lower and Squeegee Tool pick-up Performance) A B D
5 Vacuum Performance (Sealed water lift and 1” open hole adapter, 36v-68/12) C L W
6 Solution Control (Auto On/Off and Flow Volume settings – regular and heavy flow A B L
7 Battery Charger (Auto turn On and Off) D
8 Main Controller Special Programming Options (see Electrical System/Main Control
Programming Options). Check all applicable machine settings. Examples: Scrub
mode settings, service test mode, low-voltage cut-out, etc.
A
Ref
VISUAL INSPECTION ITEMS
Comments OK
Defect Codes
(circle)
Does
Not
Work
9 Scrub Brushes, check for wear and rotate D M W
10 Scrub Brush Motors, check for carbon brush wear 500 Hours B C W
11 Scrub Deck, check belts for wear or damage B D W
12 Scrub Deck Lift Motor, Skirts and Rollers D M W
13 Solution Solenoid Valve C L W
14 Solution Pump and Hoses C L W
15 Solution Tank, Delivery Hoses and Filter clean filter screen C L
16 Vacuum Motor Carbon Brushes (wear limit 3/8” [9.5 mm]) 300 Hours B C W
17 Vacuum Motor Inlet Filter (located in recovery tank) clean screen C D M
18 Recovery Tank Cover Gasket L M W
19 Recovery Tank Drain Hose and Cap C D L
20 Squeegee Pick-up Hose back flush C D L
21 Squeegee Tool and Blades (clean, rotate and adjust) A D W
22 Squeegee Mount Bottom Wheels and Squeegee Side Wheels
(lubricate)
two side and two
floor
A D W
23 Battery Condition (load test, clean and water) C W
24 Drive Wheel Transaxle Motor - Check Carbon Brushes 500 Hours B C D W
25 Transaxle Drive Tires tread wear W
26 Rear chassis Caster Wheel (grease the zerks) tread wear W
Note: For additional service information, see the individual machine system sections and the Instructions for Use, form #56041706.
WORK COMPLETED BY: ACKNOWLEDGED BY:
Service Technician Signature Date Customer Signature Date

8- FORM NO. 56043111 - Adhancer™
KNOW YOUR MACHINE
As you read this manual you will occasionally run across a bold number or letter in parentheses - example: (2). These numbers refer to an item shown on these
pages unless otherwise noted. Refer to these pages whenever necessary to pinpoint the location of an item mentioned in the text. Note: Refer to the service
manual for detailed explanations of each item illustrated on the next three pages.
9 Scrub Deck Rollers
10 Drive Wheel
11 Solution Filter
12 Solution Shutoff Valve
13 Squeegee Assembly
14 Battery Pack Connector
15 Onboard Battery Charger
1 Solution Tank Fill
2 Operator Control Handle
3 Bottle Holders
4 Vacuum Motor Inlet Screen
5 Recovery Tank Cover
6 Detergent (AXP) Cartridge Access Cover
6a Detergent (AXP) Cartridge
7 Scrub Deck
8 Scrub Deck Bristle Skirt

FORM NO. 56043111 - Adhancer™- 9
KNOW YOUR MACHINE
16 Solution Drain Hose / Level Indicator
17 Squeegee Raise / Lower Lever
18 Battery Pack Connector (not present on Adhancer)
19 Recovery Hose
20 Wheel Drive Circuit Breaker
21 Circuit Breaker for the Control Circuit
22 Squeegee Blade Tension Strap
23 Squeegee Blade Latch
24 Squeegee Blade Alignment Pins
25 Squeegee Mount Thumb Nut
26 Squeegee Adjustment Knob
27 Recovery Tank Drain Hose
28a Debris Hopper Right
28b Debris Hopper Left
29 Idler Assembly
30 Solution Manifold
31 Speed Limit Control Knob
32 Vacuum Shutoff Switch
33 Control Panel
34 Drive Paddle

10 - FORM NO. 56043111 - Adhancer™
CONTROL PANEL
A Key Switch (Main Power)
B Solution Switch
C Vacuum Switch
D Display Panel
D1 Solution Flow Indicator
D2 Fault Indicator
D3 Hour Meter
D4 AXP Indicator
D5 Battery Indicator
D6 Scrub Indicator
D7 Recovery Tank FULL Indicator
D8 Battery Low Indicator
E Wand Switch
F Detergent System Switch
G Recycle/Extended Scrub Switch (not used on Adhancer)
H Scrub Off Switch
I Scrub On Switch
Regular Heavy
Flow Flow
J Scrub Off Indicator
K Scrub On Indicator
L Scrub On Indicator
M Wand Indicator
N Vacuum System Indicator
O Solution System Indicator
P Detergent System Indicator

FORM NO. 56043111 - Adhancer™- 11
KNOW YOUR MACHINE
FUNCTIONAL DESCRIPTION OF CONTROL PANEL:
The controls on the Adhancer were designed with one-touch operation in mind. For single-pass scrubbing, the user can simply depress one switch
and all systems on the machine will be ready to go. For most single-pass scrubbing operations, the operator should only need to use the middle
switches on the control panel. These are the Scrub System Off and Scrub On switches.
Scrub Off Switch (H) - Pressing this switch when the unit is in a scrub mode will cause the following to occur:
The scrub brushes will turn off and the scrub deck will be raised to the up position.
The solution flow will be stopped.
The first time that this switch is pressed, the vacuum system will NOT be turned off. This is so that any remaining water may be picked up without
having to turn the vacuum back on. If this switch is pressed a second time (pressed after the scrub system has been turned off), the vacuum will
shut of after a 10-second delay.
Scrub On Switch (I) – If the scrub system is off, pressing this switch once will cause the following to occur:
The scrub system will be enabled with the solution flow rate set to the regular setting, and the scrub deck will be lowered.
The vacuum system will be enabled.
The solution system will be enabled.
As soon as the throttle (operator drive paddle) is moved from the neutral position, the scrub brushes 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.
Wand Switch (E) – This switch is used when an external vacuum/scrub wand is used. Pressing this switch will turn the vacuum on continuously
without regard to the throttle position. If the scrub system was on, it will be turned off. This includes turning off the scrub brushes, retracting the
scrub deck upward and turning the solution flow off to the scrub deck. Note: The automatic shutoff of the vacuum motor when the recovery tank is
full is disabled when the wand is enabled.
Key Switch (A) – Main power switch.
Vacuum Switch (C) – 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. The vacuum will remain on for 10 seconds after the throttle returns to neutral.
Note that the vacuum also has an automatic shutoff feature that will turn the vacuum and scrub systems off if the recovery tank becomes full.
Solution Switch (B) - 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 to the forward direction. The
solution flow will turn off if the throttle returns to neutral or is moved to reverse. Pressing this switch when the scrub system is off will momentarily
turn the solution flow on to allow pre-wetting of the scrub brushes.
An additional feature of the Solution Switch allows you to increase the solution flow rate, while the machine is running, from the regular (default) rate
of .3 gal./min. to the heavy flow rate of .6 gal./min. as follows:
With the machine running and the solution system switched on, press and hold the Solution Switch for three seconds. The Solution Switch will1
blink yellow and green alternately.
Release the Solution Switch.2
Press the Solution Switch again to increase the solution flow rate from .3 to .6 gal./min. The Solution Flow Indicator3 (D1) will display the Heavy
solution flow rate.
Note: Continuing to press the Solution Switch while its blinking yellow and green will toggle the solution flow rates between regular (.3 gal./min.)
and heavy (.6 gal./min.), and the Solution Flow Indicator will display the selected solution flow rate.
Note: Once the machine is switched off, then switched back on, the solution fl
ow rate will revert to the regular flow rate of .3 gal./min.
Detergent System Switch (F) – Pressing this switch will turn the detergent option on or off. See the Electrical System/Main Control Program
Options section in this manual to select (activate) the onboard detergent distribution system.
Note: Pressing the Detergent System Switch and the Solution Switch together for approximately four seconds will actuate the detergent purge
cycle. When the detergent purge cycle is actuated, the detergent and solution pumps will run for 10 seconds, then stop.
Recycle/Extended Scrub Switch (G) – Not used. The recycle/extended scrub system is not available on the Adhancer.

12 - FORM NO. 56043111 - Adhancer™
KNOW YOUR MACHINE
DESCRIPTION OF INDICATORS ON THE CONTROL PANEL:
In general, the following guidelines apply to the control panel indicators:
A flashing red or yellow indicator means that a fault has occurred in the particular system. An example of this would be an over-current fault.
A yellow indicator means that the particular function has been enabled but is not currently on. For example, if a scrub mode is selected and the
throttle is in neutral, the scrub system, vacuum and solution indicators will all be yellow indicating that the systems are enabled and ready to turn on
when the throttle is moved to forward or reverse.
A green indicator means that the particular system is on.
A flashing green indicator means that the particular system is in a delayed-off condition. An example of this is when a scrub mode is selected and
the throttle goes from forward or reverse to neutral. When this happens, the Vacuum System Indicator (N) will flash green indicating that the vacuum
is still on but will be switching off after a 10-second delay.
Scrub Off Indicator (J):
This indicator will be green when the scrub system is off and the scrub deck is up in its retracted position.
This indicator will be off when the scrub system has been switched on, the scrub deck is either moving downward or in its extended (scrub)
position, but the drive paddle is in neutral and the machine is not moving.
This indicator will be red when the scrub system has been switched off and the scrub deck is moving upward toward the retracted position.
This indicator will flash red if there is a fault in the scrub system.
Scrub On Indicators (K and L):
These indicators will be off when the scrub system is switched off and scrub deck is up in its retracted position.
These indicators will be yellow when the scrub system is switched on and the scrub deck is either moving downward or in its extended (scrub)
position, but the drive paddle is in neutral and the machine is not moving.
These indicators will be green when the scrub motors are running and the machine is moving in either direction.
Control panel Display (D):
See the detailed drawing shown in the Know Your Machine manual section for the specific description of the individual icon symbols.
Wand Switch Indicator (M):
This indicator will be off when the Wand Switch has been turned Off.
This indicator will be green when the Wand Switch has been turned On.
Note: If a speed control fault occurs (error code 03), the Wand Indicator (M) will flash the fault code produced by the Curtis speed control. Refer to
the Electrical System/Troubleshooting Guide section for details.
Detergent “AXP” System Indicator (P):
This indicator will be green when the AXP system is on.
This indicator will be yellow when the AXP system is enabled but the drive paddle is in neutral.
This indicator will be off when the AXP system is disabled and turned off.
Recycle/Extended Scrub Switch Indicator (G): Not used. The recycle/extended scrub system is not available on the Adhancer.
Vacuum System Indicator (N):
This indicator will be green when the vacuum is on.
This indicator will flash green when the vacuum is in the 10-second delayed-off condition.
This indicator will be yellow when the vacuum is enabled but the drive pedal is in neutral.
This indicator will flash yellow when there is a vacuum system fault.
This indicator will be off when the vacuum is disabled and switched off.
Solution System Indicator (O):
This indicator will be green when the solution system is on.
This indicator will be yellow when the solution is enabled but the drive paddle is in neutral.
This indicator will flash yellow when there is a solution system fault.
This indicator will be off when the solution system is disabled and turned off.


FORM NO. 56043111 - Adhancer™- 13
SOLUTION SYSTEM
FUNCTIONAL OVERVIEW
See Figure 1. The Adhancer models have a solution tank fill capacity of 30 gallons (113.5 Liters). All models use one right rear tank fill opening
which offers ease of filling. A serviceable Solution Filter (C) is plumbed into the manual Solution Shutoff Valve outlet to keep debris from entering
the solenoid valve and Solution Pump (A). Also fitted to the tank is a flexible Clear Hose (B) used to indicate the solution level and to drain the tank
for system maintenance.
The solution system uses an electrical Solenoid Valve (L1) which stops and starts the solution flow to the scrub brushes. The M7 Solution Pump
(A) located on the machine chassis controls the needed flow volume demand to the scrub brushes. See Electrical Diagram Figure 2. The electrical
circuit that turns on (energizes) the solenoid coil and water pump is activated through the (A1) control panel’s solution switch button input and the
FWD / REV (A2) Speed Controller voltage output signals. Note: See the Know Your Machine section in this manual for a complete explanation of
the solution operation modes.
During normal machine scrubbing, the solution system’s Auto Mode is selected and works in conjunction with the wheel drive speed controller and
the (A1) main controller’s scrub system outputs to turn the Solenoid Valve (L1) and Solution Pump (A) on and off. The solution will flow to the scrub
brushes when the scrub deck is lowered and the handle drive paddle is pushed forward. Note: When the solution switch is turned off, no solution
flow can occur while the machine scrub deck is down and the drive paddle is pushed forward.
FIGURE 1

14 - FORM NO. 56043111 - Adhancer™
SOLUTION SYSTEM
CIRCUIT OVERVIEW SOLUTION AUTO MODE (SOLENOID VALVE CIRCUIT)
See Figure 2.
+ (Positive) circuit input starts with:
The battery positive input to the L1 solenoid coil (BRN wire).
A closed S3 key switch to direct the needed positive voltage to terminal #J1-13 - B+1 on the A1 control board (BRN wire), and to PIN 5 – KSI
(BRN wire) on the A2 Speed Controller.
- (Negative) circuit input starts with:
A battery negative ground input at A1 control board terminals B2 (J1-9), B-3 (J2-9) and B-4 (J2-6) (BLK wires).
The A1 control board solution switch enabled.
A negative voltage output from PIN #6 - BRAKE (-) on the A2 speed controller (RED/BLK wire) to terminal J1-5 – For/Rev on the A1 control board
(RED/BLK wire). Note: The A2 speed control BRAKE (-) output (PIN #6) occurs whenever the R1 direction throttle pot is moved off its neutral
setting.
A negative voltage output from J1-11 on the A1 control board (RED/GRN wire) to the L1 solenoid coil, turning it on to allow solution flow through
the valve body.
CIRCUIT OVERVIEW SOLUTION AUTO MODE (SOLUTION PUMP CIRCUIT)
See Figure 2.
+ (Positive) circuit input starts with:
The battery positive input to the Solution Pump Pressure Switch S1 (RED wire) on solution pump assembly.
- (Negative) circuit input starts with:
A battery negative ground input at A1 control board terminals B2 (J1-9), B-3 (J2-9) and B-4 (J2-6) (BLK wires).
The A1 control board solution button enabled.
A negative voltage output from PIN #6 – BRAKE (-) (RED/BLK wire) on the A2 speed controller to terminal J1-5 – FOR/REV. on the A1 control
board. Note that the A2 speed control BRAKE (-) output (PIN #6) occurs whenever the R1 direction throttle pot is moved off its neutral setting.
A negative voltage output from A1 board terminal J1-8 – SOL. PUMP (GRN/BLK wire) to Solution Pump M7, turning the pump on to allow flow to
Water Valve Solenoid L1.
Note:
The solution pump output volume is controlled by the A1 control board which supplies PWM (pulse width modulated) negative voltage to the
pump at a frequency of 5000 Hz. These two modulated voltage levels produce the two different solution flow rates.
The solution pump pressure switch (S1) must sense sufficiently low solution pressure in order to stay closed and allow the solution pump to
run. If the pressure switch senses high solution pressure, the switch will open and not allow positive battery voltage to the pump.

FORM NO. 56043111 - Adhancer™- 15
S1 M7
SOLUTION PUMP
M
12 -+ GRN/BLK
RED
NOTE: SWITCH IS PART OF
PUMP ASSEMBLY
R1
POT. 5K OHM THROTTLE
R2
POT. 100K OHM SPEED LIMIT
S3
SW, SPST KEY
M1
MOTOR, WHEEL DRIVE
M
F3
CIRCUIT BREAKER, 30 AMP
F2
CIRCUIT BREAKER, 5 AMP
L1
COIL, SOLUTION SOLENOID
1
2
3
1
2
3
12
12
12
WHT
BRN/BLK
YEL/RED
RED
BRN
BRN
BLU
BLK
RED/BLK
BRN
RED/BLK
WHT/YEL
BRN
RED/GRN
RED
BLU/BLK
BLK
GRN/BLK
BLK
BLK
BLK
BLU/BLK
BRN
WHT
BLU
BLK
BRN
WHT
BLK
+
-
B+1
SOLUTION
FOR/REV.
J1-13
J1-11
REVERSE
B-1
SOL. PUMP
B-4
B-2
A1
CONTROL BOARD
J1-5 J1-6
J1-7
J1-8
J2-6
J1-9
A2 B+ B-
1228 SPEED CONTROLLER
M1
M2 PIN 3-POT. HI
PIN 4-POT. WIPER
PIN 13-POT. LO
PIN 5-KSI
PIN 16-REV
PIN 6-BRAKE(-)
PIN 18-SPEED LIMIT POT
F1
FUSE, 150 AMP
BT1
BATTERY
12
+-
RED
RED
BLK
36VDC
BLK
B-3 J2-9
SOLUTION SYSTEM
SOLUTION SYSTEM MAINTENANCE
Solution Tank: See Figure 1. Empty the solution tank weekly as follows:
Remove the solution Drain Hose1. (B) from its storage area (located on the right rear control handle compartment).
Direct the hose to a designated “Disposal Site” and flush the tank with clean water.2.
Solution Filter: Remove and clean the inline Solution Filter (C). To access the filter housing for removal, work underneath the middle right rear side
of the machine’s chassis. No tools are needed to remove the filter (hand tighten only). Service Tip: The solution filter ball valve must be placed in
the Off (Closed) position. This prevents loss of solution when servicing the filter strainer with a partial or full tank.
Solution Delivery Trough: Clean the holes in the delivery trough and manifolds on the cylindrical scrub deck to ensure even distribution of
solution.
TROUBLESHOOTING GUIDE
Problem Possible Cause
Inadequate or no solution flow No solution in the tank
Solution tank filter ball valve in the off position
Clogged solution filter, valves and/or hoses
Note: Reference the Solution System Troubleshooting Guide Electrical flowchart in this manual section for further component diagnostics.
FIGURE 2

16 - FORM NO. 56043111 - Adhancer™
SOLUTION SYSTEM
TROUBLESHOOTING GUIDE ELECTRICAL
Possible Symptoms
No solution flow while in the scrub auto solution mode.1.
Solution Pump will not operate.2.
SYMPTOM ONE
Note: Activate the Service Test Mode program. See the Electrical System/Service Test Mode section for instructions. All testing will be performed in the Service
Test Mode.

FORM NO. 56043111 - Adhancer™- 17
SOLUTION SYSTEM
TROUBLESHOOTING GUIDE ELECTRICAL (CONTINUED)
SYMPTOM TWO
Note: Activate the Service Test Mode program. See the Electrical System/Service Test Mode section for instructions. All testing will be performed in the Service
Test Mode with the control panel solution switch depressed.

18 - FORM NO. 56043111 - Adhancer™
SOLUTION SYSTEM
SOLENOID VALVE REMOVAL
Drain the solution tank or turn the solution filter ball valve to the off position to prevent solution loss.1
Lower the deck and disconnect the battery supply to the machine.2
Remove the front Nose Cone from the machine by firmly grasping the lower part and lifting straight up.3
See Figure 3.4 Unplug the L1 solenoid valve wire assembly connection from the machine harness.
Unscrew the inlet and outlet Hose Clamps5 (D) that secure the hoses to the valve body.
Separate (pry) the solution outlet hose off of the barbed fitting on the valve body.6
Remove the (2) Hex Screws7 (E) that secure the valve to the Mount Bracket (F), then pull the valve body to the front separating it from the solution inlet Hose
(G), completing the part removal.
SOLENOID VALVE DISASSEMBLY AND CLEANING
Remove the solenoid valve. See the1 Solenoid Valve Removal section above for instructions.
See Figure 3.2 Remove the (4) Screws (H) and disassemble the valve. (Be careful not to lose any internal parts.)
Thoroughly wash and dirt or debris from the Block3 (I) and Diaphragm (J).
Reassemble the solenoid valve, then test the solenoid valve for correct operation.4
FIGURE 3