Nobles SpeedScrub Rider Operating and installation instructions

®
331145
Rev. 00
*331145*
SpeedScrub Rider
Service
Information
®
and Hygenic t Tanks
Featuring

This manual provides service information for the NOBLES SpeedScrub Rider machine.
This machine will provide excellent service. However, the best results will be obtained at minimum
costs if:
DThe machine is operated with reasonable care.
DThe machine is maintained regularly -- per the maintenance instructions provided.
DThe machine is maintained with NOBLES supplied or approved parts.
Manual Number -- 331145
Revision: 00
Published: 12--04
Nobles and the FaST Foam Scrubbing Technology logo are United States registered trademarks of
Tennant Company.
Copyright E2004 NOBLES, Printed in U.S.A.

Table of Contents
Electrical Troubleshooting Information......................................................................................1
Commonly Used Electrical Symbols & Terms........................................................................2
Ladder Schematic ..................................................................................................................3
Wire Harness Group...............................................................................................................5
Key OFF, Operator NOT on Seat...........................................................................................9
Key OFF, Battery Charger Plugged In.................................................................................10
Key ON, Operator on Seat...................................................................................................11
Tank Level Sensors..............................................................................................................12
Horn & Hour Meter Systems ................................................................................................13
Propel Forward System........................................................................................................14
Propel Reverse System........................................................................................................15
Braking System ....................................................................................................................16
Scrub Head & Squeegee Actuator Systems........................................................................17
Scrub Brush Motors System.................................................................................................19
Vacuum Fan System............................................................................................................20
FaST System........................................................................................................................21
Conventional Solution System.................................................................................................22
LED Locations & Descriptions..............................................................................................23
Operational Modes & Interlocks...........................................................................................24
Diagnostic & Fault Alarms....................................................................................................25
Alarm Codes .....................................................................................................................25
High Current Faults...........................................................................................................25
Diagnostic & Configuration Modes.......................................................................................26
Display Software Revision Mode .........................................................................................27
Self Test Mode .....................................................................................................................28
Input Display Mode...............................................................................................................29
Manual Mode........................................................................................................................30
Propel / Brake Diagnostics...................................................................................................31
Battery Select Mode & Voltage Levels.................................................................................32
Battery Select Mode..........................................................................................................32
Voltage Levels...................................................................................................................32
Reverse Alarm & Propel Speed Select Modes ....................................................................33
Reverse Alarm Select Mode .............................................................................................33
Propel Speed Select Mode ...............................................................................................33
Inputs & Outputs Table.........................................................................................................34
Torque Standard......................................................................................................................35
Inch Fasteners......................................................................................................................35
METRIC Fasteners...............................................................................................................37
Nylon Insert Lock Nuts.........................................................................................................39
Nut-Hex Light THIN..............................................................................................................39
Wheel Bolt and Nuts.............................................................................................................40
Wheel Bearing Adjustment...................................................................................................40
Tightening Nuts on Tapered Shafts .....................................................................................41
Shoulder Bolts......................................................................................................................42
Taper Lockr Bushings ..........................................................................................................43
Sequence Tightening ...........................................................................................................44
i

ii

Speed Scrub
ELECTRICAL
Troubleshooting Information
BEFORE CONDUCTING TESTS:
DURING TESTS:
* Read and Follow ALL Safety Warnings and Precautions in
Operator's Manual
* Always use an ESD (Electrostatic Discharge) strap when
working near the Control Board
* Be cautious when working near Control Board – Battery
voltage is always present, even with Key OFF
* Always unplug Positive Battery Cable when removing or
replacing components
* Call Technical Services if Diagnostic Time Exceeds One Hour
With Unknown Cause or Course of Action
NOTE:Troubleshooting charts may be shown with optional equipment. The optional equipment may not
be specified in these charts. Some machines may not be equipped with all components shown.
2005.01.05 SSETI REV 00
1

Commonly Used Electrical Symbols & Terms
NOTE: The term “NORMALLY” refers to the components’ “at rest” or “de-energized” position
+-
Battery Fuse
Normally Closed
Push-Button Switch
Normally Open
Switch
Wires Connected
Together
Normally Open
Push-Button Switch
Plug-in
Connection
Wires Not
Connected Together Circuit Breaker
Indicates Movement
from Normal Position
Normally Open
Limit Switch Normally Closed
Limit Switch
Indicates Component in
Position Other than Normal
Relay Contacts (Part 2 of Relay)
Normally Open Normally Closed
Solenoid (Valve
or Actuator)
M1
Relay Coil
(Part 1 of Relay) Diode
Lamp
(Light Bulb) Indicates Component
is Energized
Motor
X
Wiring Standoff
(Connection Point) Horn or Alarm
Terms & Abbreviations
BDI – Battery Discharge Indicator
Dynamic Braking – A method of using the generating nature of an electric motor to slow the machine
Hall Effect – A voltage developed as a result of current flow in the presence of a magnetic field
LED – Light Emitting Diode
PM – Permanent Magnet
PWM (Pulse Width Modulation) – A method of using controlled on/off times to regulate the voltage and current supplied to an
electrical device
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
Example of Wiring Numbers & Colors:
1 RED 25 7 13 BLK
2

1
2
3
4
5
1021038
Speed Scrub – Ladder Schematic (page 1 of 2)
3

1
2
3
4
5
1021038
Speed Scrub – Ladder Schematic (page 2 of 2)
4

1
Speed Scrub – Wire Harness Group (page 1 of 4)
5

1
Speed Scrub – Wire Harness Group (page 2 of 4)
6

1
Speed Scrub – Wire Harness Group (page 3 of 4)
7

2
Speed Scrub – Wire Harness Group (page 4 of 4)
8

Speed Scrub - Key OFF, Operator NOT on Seat
D3
1 RED 13 BLK
14
13 BLK
2
POS
RIBBON CABLE CONNECTOR P6
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC +- 6 VDC
v
M1B
v
1 RED
1 RED
CHARGER
PLUG STANDOFF 4
13 BLK
NEG
TOUCH
PANEL
50 RED
F1
100 A
S1
M1A
D1
CB1
5 A
CB2
15 A
KEYSWITCH
CHARGER INTERLOCK
+
RIBBON CABLE
-
EMERGENCY
STOP SWITCH
X
X
50 RED
2
214
MAIN
CONTACTOR
6
55
56
3
26
3
26
4
4
4
44
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
1 RED 13 BLK
50 RED
1 RED
13 BLK
POST J11 POST J7
SW1 SW2
SEAT
SWITCH
PIN J6-35
PIN J6-7
42
42
27
LOGIC GROUND
32
ORG
27
GRN
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
9

Speed Scrub - Key OFF, Battery Charger Plugged In
D3
1 RED 13 BLK
14
13 BLK
2
POS
RIBBON CABLE CONNECTOR P6
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC +- 6 VDC
v
M1B
v
1 RED
1 RED
CHARGER
PLUG STANDOFF 4
13 BLK
NEG
TOUCH
PANEL
50 RED
F1
100 A
S1
M1A
D1
CB1
5 A
CB2
15 A
KEYSWITCH CHARGER
INTERLOCK
+
RIBBON CABLE
-
EMERGENCY
STOP SWITCH
X
X
50 RED
2
214
MAIN
CONTACTOR
6
55
56
3
26
3
26
4
4
4
44
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
1 RED 13 BLK
50 RED
1 RED
13 BLK
POST J11 POST J7
SW1 SW2
SEAT
SWITCH
PIN J6-35
PIN J6-7
42
42
27
LOGIC GROUND
32
ORG
27
GRN
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
10

Speed Scrub - Key ON, Operator on Seat
D3
1 RED 13 BLK
14
13 BLK
2
POS
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC
v
M1B
v
1 RED
1 RED
CHARGER
PLUG STANDOFF 4
13 BLK
NEG
TOUCH
PANEL
50 RED
F1
100 A
S1
M1A
D1
CB1
5 A
CB2
15 A
KEYSWITCH
+
RIBBON CABLE
-
EMERGENCY
STOP SWITCH
X
X
50 RED
2
214
MAIN
CONTACTOR
6
55
56
3
26
3
4
4
4
4
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
1 RED 13 BLK
50 RED
1 RED
13 BLK
RIBBON CABLE CONNECTOR P6
POST J11 POST J7
CHARGER INTERLOCK
26
4SW1 PIN J6-7 27
32
ORG
42
42
27
GRN
SW2
SEAT
SWITCH
PIN J6-35 LOGIC GROUND
v
+-
6 VDC
RIGHT SIDE
DASH PANEL
O
I
KEY
SWITCH
Indicates Component
is Energized
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
11

28
29
42
42
RECOVERY TANK
FULL SWITCH
LOGIC GROUND
42
SW3
SW4
D3
1 RED 13 BLK
14
13 BLK
2
POS
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC
v
M1B
v
1 RED
1 RED
CHARGER
PLUG STANDOFF 4
13 BLK
NEG
TOUCH
PANEL
50 RED
F1
100 A
S1
M1A
D1
CB1
5 A
CB2
15 A
KEYSWITCH
+
RIBBON CABLE
-
EMERGENCY
STOP SWITCH
X
X
50 RED
2
214
MAIN
CONTACTOR
6
55
56
3
26
3
4
4
4
4
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
1 RED 13 BLK
50 RED
1 RED
13 BLK
RIBBON CABLE CONNECTOR P6
POST J11 POST J7
CHARGER INTERLOCK
26
4SW1
v
+-
6 VDC
Speed Scrub – Tank Level Switches
CONDITIONS: key ON
PIN J6-20
PIN J6-35
PIN J6-8
SOLUTION TANK
LOW SWITCH
Recovery Tank Full Switch closes when recovery tank is full
Solution Tank Low Switch opens when solution tank is low
Tank Level Switches are ALWAYS in the OPEN position with low or
empty tank
Tank Level Switches are ALWAYS in the CLOSED position with full tank
i
Indicates Component
is Energized
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
switch tank full tank empty switch OPEN switch CLOSED indicator
xx
Solution Tank Empty LED OFF
xx Solution Tank Empty LED ON
xx
Recovery Tank Full LED ON
xx Recovery Tank Full LED OFF
Solution Tank
Recovery Tank
Tank Level Switches Logic Chart
12

Speed Scrub – Horn & Hour Meter Systems
1 RED
D3
13 BLK
13 BLK
POS
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC +- 6 VDC
vv
1 RED
STANDOFF 4
NEG
TOUCH
PANEL
50 RED
F1
100 A
S1
D1
CB1
5 A
CB2
15 A
KEYSWITCH
RIBBON CABLE
-
EMERGENCY
STOP SWITCH
X
50 RED
14
MAIN
CONTACTOR
6
55
56
3
26
3
4
4
4
4
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
50 RED
13 BLK
RIBBON CABLE CONNECTOR P6
POST J11 POST J7
CHARGER INTERLOCK
26
4SW1
23
X
+
21
PIN J6-15
PIN J6-14
LEFT SIDE
DASH PANEL
Horn pulses ON & OFF when Directional Switch is in REVERSE
Hour Meter is ON only when propelling (forward or reverse), or anytime
Squeegee/Vacuum Fan is ON
Horn pulses when a fault is detected (Directional Switch must be in FORWARD
Position) – refer to “Diagnostic/Beep Code” chart
i
CONDITIONS: key ON, operator on seat, in motion OR Vacuum Fan running (for Hour Meter)
22
2
30
42
PIN J6-35 LOGIC GROUND
42
PIN J6-10
LS1
HORN
H1
HOUR METER
14
23
14
14
14
21
RIGHT SIDE
DASH PANEL
HORN
SWITCH
M1B
M1A
00000
NOTE: Hour Meter is active
only when propelling
(forward or reverse), OR
anytime Squeegee/
Vacuum Fan is active
S2
HORN
SWITCH
Indicates Component
is Energized
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
13

13 BLK13 BLK
27
42
42
SW2
SEAT
SWITCH
LOGIC GROUND
14
PROPEL PEDAL
POSITION SENSOR
31 PROPEL
SIGNAL POWER
GND 42
14
X
35
PROPEL
DIRECTION
SWITCH
4242
REVERSE
FORWARD
HALL
EFFECT
SENSOR
PROPEL MOTOR
FORWARD
24
25
24 WHT
25 BLK
25
14 MTR1A
1515
14
14
Speed Scrub – Propel Forward System
CONDITIONS: key ON, operator on seat, propel pedal depressed
D3
1 RED 13 BLK
POS
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC +- 6 VDC
vv
1 RED
STANDOFF 4
TOUCH
PANEL
50 RED
F1
100 A
S1
D1
CB1
5 A
CB2
15 A
KEYSWITCH
RIBBON CABLE
EMERGENCY
STOP SWITCH
X
50 RED
14
MAIN
CONTACTOR
6
55
56
3
26
3
4
4
4
4
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
50 RED
RIBBON CABLE CONNECTOR P6
POST J11
CHARGER INTERLOCK
26
4SW1
X
+
LEFT SIDE
DASH PANEL
22
2
M1B
M1A
i
FORWARD
REVERSE
RIGHT SIDE
DASH PANEL
DIRECTIONAL
SWITCH
PIN J10-2
PIN J10-1
PIN J6-27
NEG -
POST J7
PIN J6-7
PIN J6-35
PIN J6-34
PIN J6-22
14 14
NOTE: Brake Solenoid
is energized to release
parking brake.
32
ORG
27
GRN
MTR1B
BRAKE
SOLENOID
Indicates Component
is Energized
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
= Output that can
Change Polarity
Typical Propel Motor Current Draw: 1 to 20 Amps in motion, higher at start-up
Propel Motor Voltage: 0 to 24 VDC - FORWARD
Approx. 0 to 17 VDC - REVERSE
Propel Motor is controlled by PWM (Pulse Width Modulation)
The Propel Pedal Position HALL EFFECT Sensor sends a varying voltage
signal (1 to 4 Volts) to control board, based upon position of the propel pedal
NOTE: Refer to the
“Propel/Brake Diagnostics”
page for more information
SW6
U2
14

25
25 BLK
25
13 BLK13 BLK
27
42
42
SW2
SEAT
SWITCH
LOGIC GROUND
14
PROPEL PEDAL
POSITION SENSOR
31 PROPEL
SIGNAL POWER
GND 42
14
X
35 4242
REVERSE
FORWARD
HALL
EFFECT
SENSOR
PROPEL MOTOR
REVERSE
14 MTR1A
MTR1B
BRAKE
SOLENOID
1515
14
14
D3
1 RED 13 BLK
POS
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC
vv
1 RED
STANDOFF 4
TOUCH
PANEL
50 RED
F1
100 A
S1
D1
CB1
5 A
CB2
15 A
KEYSWITCH
RIBBON CABLE
EMERGENCY
STOP SWITCH
X
50 RED
14
MAIN
CONTACTOR
6
55
56
3
26
3
4
4
4
4
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
50 RED
RIBBON CABLE CONNECTOR P6
POST J11
CHARGER INTERLOCK
26
4SW1
X
+
LEFT SIDE
DASH PANEL
22
2
M1B
M1A
PIN J10-2
PIN J10-1
NEG -
POST J7
PIN J6-7
PIN J6-35
PIN J6-34
PIN J6-22
14 14
NOTE: Brake Solenoid
is energized to release
parking brake.
32
ORG
27
GRN
Speed Scrub – Propel Reverse System
CONDITIONS: key ON, operator on seat, propel pedal depressed
FORWARD
REVERSE
DIRECTIONAL
SWITCH RIGHT SIDE
DASH PANEL
+-
6 VDC
Indicates Component
is Energized
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
= Output that can
Change Polarity
24
24 WHT
Typical Propel Motor Current Draw: 1 to 20 Amps in motion, higher at start-up
Propel Motor Voltage: 0 to 24 VDC - FORWARD
Approx. 0 to 17 VDC - REVERSE
Propel Motor is controlled by PWM (Pulse Width Modulation)
The Propel Pedal Position HALL EFFECT Sensor sends a varying voltage
signal (1 to 4 Volts) to control board, based upon position of the propel pedal
i
PIN J6-27
PROPEL
DIRECTION
SWITCH
SW6
U2
NOTE: Refer to the
“Propel/Brake Diagnostics”
page for more information
15

Speed Scrub – Braking System
CONDITIONS: key ON, operator on seat, brake pedal depressed
13 BLK13 BLK
27
42
42
SW2
SEAT
SWITCH
LOGIC GROUND
14
BRAKE PEDAL
POSITION SENSOR
32 BRAKE
SIGNAL POWER
GND 42
14
HALL
EFFECT
SENSOR
PROPEL MOTOR
24
25
24 WHT
25 BLK
25
14
1515
14
14
D3
1 RED 13 BLK
POS
CONTROL BOARD
STANDOFF 2
+-
6 VDC +- 6 VDC +- 6 VDC
vv
1 RED
STANDOFF 4
TOUCH
PANEL
50 RED
F1
100 A
S1
D1
CB1
5 A
CB2
15 A
KEYSWITCH
RIBBON CABLE
EMERGENCY
STOP SWITCH
X
50 RED
14
MAIN
CONTACTOR
6
55
56
3
26
3
4
4
4
4
PIN J6-17
PIN J6-5
PIN J6-24
PIN J6-6
PIN J6-13
14
1 RED
50 RED
RIBBON CABLE CONNECTOR P6
POST J11
CHARGER INTERLOCK
26
4SW1
X
+
LEFT SIDE
DASH PANEL
22
2
M1B
M1A
PIN J10-2
PIN J10-1
NEG -
POST J7
PIN J6-7
PIN J6-35
PIN J6-33
14 14
32
ORG
27
GRN
Indicates Component
is Energized
Wiring Color Codes
(Unless otherwise marked)
0
1
2
3
4
5
6
7
8
9
Tan
Pink
Brown
Orange
Yellow
Green
Blue
Purple
Gray
White
Right Most Digit
of Wire Number Color of Wire
= Battery Negative
or Logic Ground
= Battery Positive
or Positive Output
MTR1B
BRAKE
SOLENOID
NOTE: Brake Solenoid is DE-
energized to apply parking
brake. Dynamic Braking will
occur before Brake Solenoid is
de-energized.
MTR1A
+-
6 VDC
The brake pedal position HALL EFFECT sensor sends a varying voltage
signal (1 to 4 Volts) to control board, based upon position of the brake pedal
Brake Solenoid is DE-energized to apply brake.
Dynamic Braking will occur before Brake Solenoid is de-energized.
i
PIN J6-27
U2
NOTE: Refer to the
“Propel/Brake Diagnostics”
page for more information
16