Tennant IRIS T300 Operating and installation instructions

T300
T300e
Automatic Floor Scrubber
English EN
Service Information Manual
9014510
Rev. 01 (3-2017)
*9014510*
For the latest Parts Manuals and other
language Operator Manuals, visit:
www.tennantco.com/manuals
R
Hygenic ®Fully cleanable
Recovery Tank
TennantTrue ®Parts
IRIS ®a Tennant Technology

INTRODUCTION
This manual is available for each new model. It provides
necessary operation and maintenance instructions.
Read this manual completely and
understand the machine before
operating or servicing it.
This machine will provide excellent service. However,
the best results will be obtained at minimum costs if:
• The machine is operated with reasonable care.
• The machine is maintained regularly - per the
machine maintenance instructions provided.
• The machine is maintained with manufacturer
supplied or equivalent parts.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials
and used machine components such as
batteries in an environmentally safe way
according to your local waste disposal
regulations.
Always remember to recycle.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763) 513- 2850
www.tennantco.com
Pro-Membrane, Membrane, Severe Environment, Zone Settings,
Quite-Mode are US registered and unregistered trademarks of
Tennant Company.
Trojan and HydroLINK are registered trademarks of Trojan Battery
Company.
This product may contain portions of software that have various 3rd
party licenses. More information can be found at: www.tennantco.
com/opensource
Specications and parts are subject to change without notice.
Original Instructions. Copyright © 2015- 2017 Tennant Company. All
rights reserved.
INTENDED USE
The automatic oor scrubber is intended for commercial
use, for example in hotels, schools, hospitals,
factories, shops, ofces and rental businesses. It
is designed to scrub hard oor surfaces (concrete,
tile, stone, synthetic, etc.) in an indoor environment.
Do not use this machine on carpeted surfaces. Use
only recommended pads/brushes and commercially
available oor cleaning detergents. Do not use this
machine other than described in this Operator Manual.
MACHINE DATA
Please ll out at time of installation for future reference.
Model No. - _________________________________________
Serial No. - _________________________________________
Installation Date - ____________________________________
SERIAL NUMBER LOCATION
UNCRATING MACHINE
Carefully check machine for signs of damage. Report
damages at once to carrier. Contact distributor or
Tennant for missing items.
To uncrate the machine, remove straps, wheel blocks
and shipping brackets. Using the supplied ramp
carefully back the machine off the pallet. Make sure
scrub head is in the raised position.
ATTENTION: Do not remove machine from pallet
without using ramp, machine damage may occur.

3
T300, T300e Service Information (3-2017)
CONTENTS
CONTENTS
Introduction.....................................................2
Intended Use...................................................2
Machine Data..................................................2
Serial Number Location..............................2
Uncrating Machine..........................................2
Contents................................................................3
Safety Precautions ................................................6
General Information.............................................10
Component Locator..................................10
Electrical Schematic Symbols..................11
Electrical Schematic T300
(Drive Model) - 1 Of 3 ........................12
Electrical Schematic T300
(Push Model) - 1 Of 3 .........................15
Electrical Schematic T300e
(Drive Model) - 1 Of 2..........................18
Electrical Schematic T300e
(Push Model) - 1 Of 2..........................20
Fastener Torque.......................................23
Sae (Standard).........................................23
Metric .......................................................23
General Machine Dimensions/
Capacities/Performance......................24
General Machine Dimensions/
Capacities/Performance......................25
General Machine Dimensions/
Capacities/Performance......................26
General Machine Dimensions/
Capacities/Performance......................27
Maintenance........................................................32
Maintenance Chart...................................32
Machine Maintenance..............................33
After Daily Use.........................................33
After Weekly Use .....................................35
After Every 50 Hours Of Use....................36
After Every 100 Hours Of Use..................36
Electric Motors .........................................37
Belts.........................................................37
Orbital Scrub Head Isolators (Lower).......37
Batteries...................................................38
Maintenance-Free Batteries.....................38
Flooded (Wet) Lead-Acid Batteries..........38
Checking Connections / Cleaning............38
Charging Batteries ...................................39
Squeegee Blade Replacement ................40
Ec-H2o Nanoclean Water Conditioning
Cartridge Replacement .......................41
Loading/Unloading Machine For
Transporting ........................................42
Storing Machine.......................................43
Freeze Protection.....................................43
Troubleshooting...................................................44
Faults .......................................................44
Faults - Off Board Battery Charger ..........57
Troubleshooting .......................................58
Onboard Battery Charging On (Option) ...60
Batteries Failed To Charge/ Reduced
Run Time (Onboard Charger)..............61
Off Board Battery Charging On (Option)..62
Batteries Failed To Charge/ Reduced
Run Time (Off Board Charger)............63
Power-Up On ...........................................64
Machine Failed To Power Up...................65
T300 Propel Subsystem (Option).............66
T300 Failed To Propel..............................67
T300e Propel Subsystem (Option)...........68
T300e Failed To Propel............................69
T300 Scrub Motor On ..............................70
T300 Scrub Motor Failed To Turn On ......71
T300e Scrub Motor On ............................72
T300e Scrub Motor Failed To Turn On ...73
Scrub Head Lift Actuator (Option)............74
Scrub Head Failed To Raise/Lower..........75
T300 Vacuum Fan On .............................76
T300 Vacuum Fan Failed To Turn On .....77
T300e Vacuum Fan On ...........................78
T300e Vacuum Fan Failed To Turn On ..79
T300 Solution Control On
(Conventional).....................................80
T300 Solution Control Failed To
Turn On (Conventional).......................81
T300e Solution Control On
(Conventional).....................................82
T300e Solution Control Failed To
Turn On (Conventional).......................83
T300 Solution Control On (Ec-H2o).........84
T300 Solution Control Failed To
Turn On (Ec-H2o)................................85
T300e Solution Control On (Ec-H2o).......86
T300e Solution Control Failed To
Turn On (Ec-H2o)................................87
T300 Se (Severe Environment) On..........88
T300 Se (Severe Environment)
Failed To Turn On................................89
Sun-I/O Circuit Board Testing
(Universal Schematic).........................90

4T300, T300e Service Information (3-2017)
CONTENTS
Sun-I/O Circuit Board Testing
Procedure............................................91
Can Open Network Issues.......................92
Connectors Fully Seated..........................92
Pin Fully Seated.......................................92
Network Resistance.................................92
Node (Module) Resistance.......................93
Wire Continuity To Node ..........................93
Machine Node Table ................................94
Service.................................................................95
Service Diagnostics Tool..........................95
Programing ANew Interface Module........95
Re-Conguring Existing Modules.............97
Programming The I-Drive Module
(Option) ...............................................99
Displaying Fault Codes..........................100
Battery Charger Settings........................101
Off-Board Battery Charger:....................101
Changing Off-Board Battery
Charger Settings ...............................101
On-Board Battery Charger.....................103
Changing On-Board Battery Charger
Settings (Pro-Membrane Model).......103
Changing On-Board Battery Charger
Settings (Pro-Panel Model)...............104
Battery Charger Operation.....................105
Removing Scrub Head Assembly...........106
Installing Scrub Head Assembly.............107
Checking And Adjusting Cylindrical
Scrub Brush Pattern..........................107
Removing Lower Orbital Head Isolators 110
Installing Lower Orbital Head Isolator....111
Removing Transaxle Assembly (Option) 111
Installing Transaxle Assembly (Option)..112
Ptc (Push-To-Connect) Fittings..............113
Making A Connection .............................113
Disconnecting.........................................114
Removing Vacuum Fan..........................114
Installing Vacuum Motor.........................115
Removing Carbon Brushes....................116
Installing Carbon Brushes......................116
Removing Water Solenoid
(T300e Shown)..................................117
Installing Water Solenoid........................118
Adjusting Water Solenoid (T300e Only).119
Control Modules..........................................121
Removing Machine Control Module
(Option) .............................................121
Installing Control Module........................122
Removing I-Drive Module (Option).........122
Installing I-Drive Module (Option)...........123
Removing Onboard Battery Charger
(Option) .............................................123
Installing Onboard Battery Charger........124
Removing Interface Module...................125
Installing Interface Module.....................125
Removing Bail Switch, Speed
Potentiometer, Or
Directional Switch..............................126
Installing Bail Switch, Speed
Potentiometer, Or
Directional Switch..............................128

5
T300, T300e Service Information (3-2017)
CONTENTS

6T300, T300e Service Information (3-2017)
SAFETY PRECAUTIONS
IMPORTANTSAFETY INSTRUCTIONS - SAVE THESEINSTRUCTIONS
The followingwarning precautions are used throughout
this manual as indicated in theirdescription:
WARNING: To warn of hazards or unsafe
practiceswhich couldresult in severe personal
injury or death.
FOR SAFETY: To identify actionswhich must be
followed for safe operation of equipment.
The followinginformation signalspotentially
dangerous conditions to the operator. Knowwhen
these conditions can exist. Locate all safety devices on
the machine.Report machinedamage or faulty
operation immediately.
WARNING: To Reduce the Risk of Fire,
Explosion, Electric Shock or Injury:
- Readmanual before operatingmachine.
- Do not use or pick up flammablematerials.
- Do not use near flammableliquids, vapors or
combustibledusts.
Thismachineisnot equipped with an
explosion proof motor. The electric motor will
sparkupon start up and duringoperation
which couldcauseaflash fire or explosion if
machine is usedinanareawhere flammable
vapors/liquids or combustibledusts are
present.
-Batteries emit hydrogen gas. Explosion or fire
canresult. Keep sparks and open flame away
when charging.
- Disconnect batterycables and charger cord
before cleaning and servicingmachine.
- Do not charge batteries with damaged cord. Do
not modify plug.
If the charger supply cord is damaged or
broken, it must be replaced by the
manufacturer or its service agent orasimilarly
qualified person in order to avoid a hazard.
- Do not use outdoors. Store indoors.
- Spinning pad/brush, keep hands away.
WARNING: Magnetic Field Hazard. Magnetic
pad driver/brush can be harmful to pacemaker
wearers or medical implants.
Thismachinemay be equipped with technology
that automatically communicates over the cellular
network. If the machinewill be operated wherecell
phone use is restricted because of concerns
related to equipment interference,please contact a
Tennant representative for informationonhow to
disable the cellular communication functionality.
FOR SAFETY:
1. Do notoperate machine:
- Unless trained and authorized.
- Unlessoperator manual is read and
understood.
- Unlessmentally and physicallycapable of
followingmachineinstructions.
- Under the influence of alcohol or drugs.
-While using a cell phone or other types of
electronic devices.
- If not in proper operating condition.
- In outdoor areas.Thismachine is for
indoor use only.
- In areaswhere flammablevapors/liquids or
combustibledusts are present.
-With pads or accessories not supplied or
approved by Tennant. The use of other
pads may impair safety.
- In areaswith possible fallingobjects.
- In areas that are too dark to safely see the
controlsoroperate machine.
2. Before operatingmachine:
- Checkmachine for fluid leaks.
- Make sure all safety devicesare in place
and operate properly.
3. When operatingmachine:
-Useonly as described in thismanual.
-Report machine damage or faulty operation
immediately.
- Wear closed-toe, non-slipwork shoes.
-Reduce speedwhen turning.
- Go slowly on inclines and slippery
surfaces.
- Do notscrub on inclines that exceed 9%
grade or transport on inclines that exceed
21% grade.
-Follow site safety guidelines concerning
wet floors.
-Follow mixing, handling and disposal
instructions on chemical containers.
- Do notcarry passengers on machine.
-Usecarewhen reversingmachine.
-Keep children and unauthorized persons
away from machine.
- Do not allowmachine to be used asatoy.
SAFETY PRECAUTIONS

SAFETY PRECAUTIONS
7
T300, T300e Service Information (3-2017)
4. Before leaving or servicingmachine:
- Stop on level surface.
- Set the parking brake, if equipped.
- Turn off machine and remove key.
5. When servicingmachine:
- Disconnect battery connection and charger
cord before workingonmachine.
- All work must be donewith sufficient
lighting and visibility.
- All repairs must be performed by trained
personnel.
-Use Tennant supplied or approved
replacement parts.
- Do not modify the machine from its original
design.
- Do not jack up machine.
- Avoid moving parts. Do not wearloose
clothing or jewelry and secure long hair.
- Do notdisconnect the off-board charger’s
DC cord from the machine’s receptacle
when the charger is operating.Arcingmay
result. If the charger must be interrupted
during chargingcycle, disconnect the AC
power supply cord first.
- Do not use incompatible battery chargers
as thismay damage battery packs and
potentiallycauseafire hazard.
-Inspect charger cord regularly for damage.
-Keepwork area well ventilated.
- Avoid contactwith batteryacid.
-Keep all metal objects off batteries.
- Do notpower sprayorhose off machine.
-Useahoist or adequate assistance when
lifting batteries.
-Batteryinstallation must be done by trained
personnel.
- Wear personal protection equipment as
needed and whererecommended in this
manual.
For Safety: wear protective gloves.
For Safety: weareye protection.
6. When loading/unloadingmachineonto/off
truck or trailer:
-Drain tanks before loadingmachine.
-Usearamp, truck or trailer that can support
the machine weight and operator.
- Do notoperate the machine on a ramp
incline that exceedsa21% grade level.
-Useawinch if rampinclineexceedsa21%
grade level.
-Lower the scrub head and squeegee before
tyingdownmachine.
- Turn machine off and remove key.
- Set parking brake (if equipped).
- Block machinewheels.
-Use tie-down straps to secure machine.

8T300, T300e Service Information (3-2017)
SAFETY PRECAUTIONS
SAFETY LABELS
The safety labelsappear on the machine in the locationsindicated.Replace labels if they are missing or beco
me
damaged or illegible.
WARNING LABEL - Located on recovery tank cover.
WARNING LABEL -
Electrical hazard.
Disconnect battery
cables before servicing
machine.
Located on circuit breaker
panel.
WARNING LABEL -
Batteries emit
hydrogen gas.
Explosion or fire ca
n
result. Keep sparks
and open flame awa
y
when charging.
Located on bottom s
ide
of recovery tank.
WARNING LABEL -
Spinning pad. Keep hands away.
Located on disk scrub head model.
WARNING LABEL -
Spinning brush. Keep hands away.
Located on cylindrical scrub head
model.
WARNING LABEL -
Magnetic Field Hazard. Magnetic
pad driver/brush can be harmful
to pacemaker wearers or medical
implants.
Located on Insta-Click magnetic
pad driver/brush.
FOR SAFETY LABE
L -
Do notpower spray
or
hose off machine.
Electricalmalfunct
ion
may occur.
Located on control c
onsole

SAFETY PRECAUTIONS
9
T300, T300e Service Information (3-2017)
SAFETY LABELS
The safety labelsappear on the machine in the locationsindicated.Replace labels if they are missing or become
damaged or illegible.
WARNING LABEL -
Do not charge
batteries with
damaged cord.
Electric shock can
result. Disconnect
charger cord before
servicing.
Located on control
console.
WARNING LABEL -
Batteries emit
hydrogen gas.
Explosion or fire
canresult. Keep
sparks and open
flame away when
charging.
Located on control
consoleandbottom
side of recovery tank.
WARNING LABEL - Electrical
Hazard. Disconnect battery
cables before servicing
machine.
Located on circuitboard panel.
WARNING LABEL -
Spinning pad. Keep
hands away.
Located on disk scrub
head model.
WARNING LABEL -
Magnetic field hazard. Magnetic
pad driver/brush can be harmful
to pacemaker wearers or medical
implants.
Located on Insta-Click magnetic pad
driver/brush.
WARNING LABEL -
Flammable
materials or
reactive metals can
cause an explosion
or fire. Do notpick
up.
Located near control
console.
WARNING LABEL -
Flammable
materials cancause
explosion or fire. Do
not use flammable
materials in tank(s).
Located on backside
of solution tank cover.
FOR SAFETY
LABEL - Read
manual before
operating
machine.
Located near
control console.
WARNING LABEL -
Spinning brush. Keep
hands away.
Located on cylindrical
scrub head model.
FOR SAFETY LABEL -
Do notpower spray or
hose off machine.
Electricalmalfunction
may occur.
Located on control console

10 T300, T300e Service Information (3-2017)
GENERAL INFORMATION
I
A
H
E
F
D
C
B
G
L
K
N
M
O
J
P
Q
Components
A Batteries
B Circuit Breakers and Optional
Machine Control Module
C ec-H2O System Components
D Scrub Head Lift Contact
Switch
E Parking Brake Switch
F Scrub Head Drive Belt
G Scrub Motor (Disk Shown)
H SE (Severe Environment)
System
Components
I Solution Tank Fill Port
J Onboard Battery Charger*
K Interface Module w/ mini-USB
Programming Port
L Internal Bail Switch
M Forward/ Reverse Propel
Switch*
N Scrub Head Linkage
(Congurable)
OTransaxle Assembly*
P Rear Squeegee Lift Contact
Switch
Q I-Drive Propel Control Module*
* Optional Equipment
GENERAL INFORMATION
Component Locator

T300, T300e Service Information (3-2017) 11
GENERAL INFORMATION
ELECTRICAL SCHEMATIC SYMBOLS
1
2
2
1
+ -
+ -
Switched B+
From Buss Bar
Switched B+
B- From
Stando
B- From
Stando
S-5 Seat Switch (N.O.)
Amer
Encoder
Cable
C1 Capacitor (0.01Uf)
R1
(11 Ω/40W)
+ -
MTR
ecH2O
Pump
J3-2 Brush RT-
J3-5 Brush LT+
J3-6 Brush LT-
Right/Rear Brush
Left/Front* Brush
* Cylindrical = Uses Adaptor
ecH2O
Control
Module
T16
Control
Board
VCC_A
Alarm
Com N.C.
N.O.
S-14 Pressure Sw.
N.C. Opens @ 25 +/- 2 psi
Enable
GND_A
GND_B
Pressure IN
(ECH2O SW)
(ECH2O SW)
VCC_B
VCC_C
Pump
(SOL-A)
ecH2O Valve
Sparger
e-Cell
65EA/BLU
5EA/GRN
8EA/GRY
7EA/PUR
3EA/ORA
4EA/YEL
(SOL-B)
(SPA-A)
(SPA-B)
(CELL-A)
(CELL-B)
(LED GND)
(LED RED)
(LED GRN)
Squeegee
Actuator
Battery Positive +
Battery Negative -
D-8
FU2
100A
70/TAN
M4A
86 85
B+
J7-1 B+ Control
B-
Cable
8/GRY
FU1
100A
FU1
100A
102/BRN
Sweep OFF/Down = 2-1, 6-5
Sweep ON/Center = 2-3, 6-7
Vac & Sweep ON/Up = 3-4, 7-8
Cable
Pre-Sweep
Brush Relay
CB3 (2.5A)
CB19 (25A)
CB16 (15A)
J7-4 Sweep
Note:
ecH2O Enable:
J7-10 Low=Turn ON ecH2O
Note:
Pre-Sweep Enable:
J6-10 B+ = Sweep Enable ON
Sweep Enable J6-10
37/PUR
38/GRY
CB9 (2.5A) 79/WHT
CB10 (2.5A)
Note:
ecH2O Side Brush
J7-12 Low=SV3 H20 Valve ON
ecH2O Pump ON 100%
13/BLK
88/GRY
9EA/WHT
S-15
Flush Switch
13EA/BLK
21/PNK
Extend
Limit Sw.
22/BRN
MTR 26/BLU
25/GRN
2/BRN
Switched B+
From Buss Bar
Switched B+
From Buss Bar
Switched B+
To: CAN Open-
(J6-14)
To: Throttle
Sensor (GND)
To: Curtis 1234
(I/O GND)
To: CAN Open+
(J6-13)
To: Back-Up
Light Circuit
To: Back-Up
Alarm Circuit
80/TAN
PMC001
12
12
MTR
10 4
1
3
2
7
9
6-4
6-8
5
6
11
12
8
6-1
6-2
6-3
6-6
6-5
6-7
ON
OFF
6
2
8
5
4
1
FWD
REV
6
2
8
BA
5
4 J1-33
GND Cable
J1-34
J1-21
W/WHT
V/GRN
U/ORN
J1-3
J1-4
J1-13
J1-11
BLU2 J1-32
J1-26
J1-31
J1-7
J1-18 J1-15
66/BLU 61/PNK
62/BRN 12/BRN
17/PUR
Propel Motor Assembly
17/PUR
15/GRN
87/PUR
Temp Sender
Brake Solenoid
59/WHT
58GRY
RED1 WHT5 BLK6
YEL
T2
B1 B2
T1
YEL
J1-16 J1-35 J1-23
P1-C
BLU
YEL
P1-B
P1-D
BLK
P1-A
RED
J1-22
J1-9
J1-1
B+
J1-29
J1-28
J1-25
1
1
3
5
7
2
4
6
8
Pre-Sweep Switch
Sweep OFF/Down = 2-1, 6-5
Sweep ON/Center = 2-3, 6-7
Vac & Sweep ON/Up = 3-4, 7-8
1
3
5
7
2
4
6
8
M3B
MTR
MTR
MTR
MTR
FaST/ES Pump
D-9
D-6
D-7
D-12
67/PUR
64/YEL 81/PNK
Pre-Sweep
Vacuum Fan
LH Side Broom Motor
Main Broom Motor
13/BLK
13/BLK
65/GRN
65/GRN
65/GRN
68/GRY
69/WHT
D-11
30 87
M3A
Curtis 1234
Controller
PROG +
TX
RX
B+
KSI
INTERLOCK
FWD
FWD/REV Switch
Throttle Sensor
REV
B -
GND
B+
THROTTLE
BRAKE
CAN TERM L
CAN TERM H
U
DRV3
DRV4
DRV1 THERMISTOR I/O GND PHASE A PHASE B +5V DRV2
COIL RETURN
V
W
BRAKE IN
(0-5 vdc)
(0-5 vdc) THROTTLE
CAN L
8/GRY 8/GRY
18/GRY
16/BLU
94/YEL
9/WHT
11/PNK
14/YEL
58/GRY
58/GRY
CAN H
6 Volt
IGN
15
ACC
30
BAT T
75
50 Start
ST
To: Back-Up
Alarm Circuit
+ -
Com N.C.
N.O.
1
3
5
7
2
4
6
8
MTR MTR
M3B
30 87
M3B
30 87a
M3A
IGN ST
+ -
Note: Key Switch ON
Key Switch
Battery
DPDT Switch
Pressure Switch
Motor
3 Phase AC
Induction Motor
Motor Encoder
Momenary Switch N.O.
Contact Switch N.C.
Solenoid Valve
Sensor
(Variable Resistor)
Circuit Breaker
Fuse
Diode
Single Continuation Tab
Double Continuation Tab
Relay Coil
N.C. Relay Contacts
N.O. Relay Contacts
Horn or Alarm
Light
Connected
Not Connected
Connector
Energized
Adaptor Harness
Notes
Assembly
AC Plug
Capacitor
Electro-
Magnetic
Brake
Enabled (Applied)
• Key O
• Neutral - Ready State
• Brake Command
• Seat Switch Open
• Curtis 1234 Fault
(See Troubleshooting)
• Throttle Command
• Seat Switch Closed
Disabled (Released)
Operational Matrix:
Propel
Enabled
•Seat Switch Closed
• Foot Throttle
Command
• Fwd/Rev Switch Input
• Seat Switch Open
• Neutral-Ready State
• Brake Command
• Curtis 1234 Fault
Disabled
Operational Matrix:
* SV2 Water Valve Voltage
Range
Low 1-LED
2-LEDs
3-LEDs
1-LED
2-LEDs
3-LEDs
1-LED
2-LEDs
3-LEDs
20%
30%
45%
30%
55%
80%
55%
80%
100%
7.2 Volts
10.8 Volts
16.2 Volts
10.8 Volts
19.8 Volts
28.8 Volts
19.8 Volts
28.8 Volts
36 Volts
Med
(Default)
High
Level PWM% @ Nominal
36 VDC

12 T300, T300e Service Information (3-2017)
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300 (DRIVE MODEL) - 1 of 3
54 3 2 1
BATTERY / CHARGER SYSTEMS
PCB ASSEMBLY
POWER ON/OFF CIRCUITRY
CABLE, CHARGER
CABLE, CHARGER
CHARGER INTERLOCK SWITCH (N.C.) OFF-BOARD CHARGER ONLY: SW. OPEN = CHARGING
N.O. N.C.
COM
CAN COMMUNICATION
AC PLUG
RS232 DEBUG PORT
REVERSE SWITCH
(GND. = REV.)
SW-4
J1-5
J1-4
J1-3
J1-2
J1-1 J10-2
J10-3
J11-1
J11-2
USER INTERFACE MODULE PROPEL SYSTEM
BATTERY+ SEE SECTION A15
BATTERY+
#1209779PROPEL ENABLE
(GND. = TURN OFF PROPEL)
SW-1: KEY SWITCH
# 1011402 SWITCHED/FUSED/B+
JTAG PORT
I-DRIVE SUPPLY VOLTAGE DETECT
J1-6 J1-7 J1-8 J1-9
J2-1
J2-5
J2-3 J2-4
J2-2
I-DRIVE STATUS
AUX2 OUT
AUX3_OUT
(GND. = SCRUB SPEED)
W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY
(2) 12VDC BATTERIES
OFF BOARD CHARGER CABLE ASSY
J2-12
OPERATOR'S SWITCH/LED TOUCHPANEL
J2-10
J2-11 NOT USED
NOT USED
J2-8
NOT USED
USB PORT
STATIC GROUNDING
(PART OF MAIN HARNESS
AND OP.STATION HARNESS)
J2-7
STATIC GROUND
@THE SCRUBHEAD
J9: 20 PINS J8: 15 PINS
J10-1
J2-9 NOT USED
J2-6
MOM. SWITCH. TOGGLES
EC-H2O ON/OFF
J2-13
NOT USED
NOT USED
NOT USED
J2-14
J2-15
NO CONNECTION
BAIL SWITCH (N.O.)
SW-4
NO CONNECTIONBAIL SW. HARNESS
BAIL SWITCH INPUT @J4-4: 0V OR 5V
0V = NEUTRAL / SCRUBMTR OFF.
5V = MAX. PROPEL / BURNISH MTR ON.
1/RED
5/GRN
CAN- /GRN
7/PUR
7/PUR
4/YEL
1/RED
CAN+ /YEL
13/BLK 13/BLK
CABLE/RED CABLE/BLK
SHIELD/GRN CABLE/NAT.
35/GRN
34/YEL
33/ORA
37/PUR
36/BLU
37/PUR
36/BLU
34/YEL
35/GRN
GRN
GRN
GRN
WHT
33/ORA
113/BLK/WHT
1/RED
13/BLK
9/WHT
10/TAN10/TAN
1/RED
16/BLU
1/RED
YRG/8YRG/8
WHT
6/BLU6/BLU
1/RED
1/RED
13/BLK13/BLK
CAN+/YEL
CAN-/GRN
CABLE/BLK CABLE/RED
CABLE/NAT. SHIELD/GND
KNP/11KNP/11
4/YEL
5/GRN
6/BLU
6/BLU
NRB/24NRB/24
NAT/04NAT/04
KNP/14KNP/14
28/GRY
13/BLK1/RED
13/BLK13/BLK
27/PUR
18/GRY
20/TAN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
38/GRY
2/BRN2/BRN 13/BLK
54/YEL
30/TAN
31/PNK
CAN+
CAN-
1
13
16
6
11
42
40
41
28
100K PROPEL SPEED LIMIT
POT.-1
1
2
3
CB-4
30A
SW-2
CHARGER: ON BOARD
NC
P2-2
GND
P1-B-
B+
P1-B+
COM
P2-3
CAN+
P2-6
CAN-
P2-10
NO
P2-4
CAN_GND
P2-1
SENSE+
P2-5
SENSE-
P2-14
RESERVED3
P2-11
LED+
P2-12
LED-
P2-13
RESERVED1
P2-8
RESERVED2
P2-9
RETURN
P2-7
MTR1
PROPEL MOTOR
2 1
VAC FAN1
INTERFACE MODULE
+5V OUT
J4-1
CAN-
J3-2
CAN+
J3-1
CHARGER INPUT
J7-9
KSI
J7-10
SENSE_GND
J4-3
COMM_GND
J5-1
TX
J5-3
RX
J5-4
V_BUS
J6-1
SHLD_GND
J3-3
N/C
J3-4
SENSOR_IN
J4-4
BAIL OUT
J5-2
GND
J7-8
COM_GND2
J2-3
TX_2
J2-1
RX_2
J2-2
+5VDC_OUT
J7-1
D-
J6-2
D+
J6-3
ID
J6-4
GND_SHIELD
J6-5
LSD_OUT_0
J7-5
LSD_OUT_1
J7-6
LSD_FLYBACK
J7-7
INPUT_0
J7-2
INPUT_1
J7-3
INPUT_2
J7-4
NOT USED
J4-2
JTAG
J1-1
12 VDC
+ --
KEY SWITCH1
OP.STATION BASE
I-DRIVE
B+
P2-B+
KSI
P1-5
M2
P2-M2
M1
P2-M1
GND_REF
P1-13
B-
P2-B-
AUX2_OUT
P1-3
FUSED, B+_OUT
P1-7
STATUS
P1-10
POT LOW
P1-8
REVERSE
P1-12
SPD LIMIT
P1-9
POT HIGH
P1-2
AUX3_OUT
P1-11
PROG_B+
P3-2
LOW SPEED
P1-4
DIGITAL_GND
P3-1
TX
P3-3
RX
P3-4
BAIL ON/OFF
P1-1
OPEN_B
P1-6
OPEN_C
P1-14
CB-1
4A
REAR FRAME
SW-3
EC-H2O SWITCH
TRANSAXLE
USER INTERFACE
EC-H2O
12 VDC
+ --

T300, T300e Service Information (3-2017) 13
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300 (DRIVE MODEL) - 2 of 3
1
GROUND
CAN COMMUNICATION
BATTERY+
37A
EC-H2O MODULE
PREMIUM CONTROLLER
4A ECHO BREAKER1 SENSE 4A ECHO BREAKER2 SENSE
SEE SECTION G18
SW-3
I-DRIVE B+ DETECT
E-STOP SWITCH
PROPEL ENABLE
(GND. = TURN OFF PROPEL)
SWITCHED/FUSED/B+
HOUR METER
HM-1
4A ECHO MODULE, CB-3 STATUS
4A ECHO PUMP, CB-4 STATUS
SW-6
SW-7
SW-8
OPT. EC-H2O MODULE HARNESS
CAN COMMUNICATION
(A) (B)
SW-11
ECHO/FAST PUMP
EC-H20 FLUSH SW.
NOT USED OPT. DET. METERING
SCRUB HEAD LOW DOWN PRESS LEVEL
(CLOSED = DP LEVEL OBTAINED)
SW-11: (INSIDE SCRUB ACTUATOR)
19A
3-5A
INCLUDED IN CABLE ASSEMBLY
OPT. DET. METERING
0.5A
0.5A
INCLUDED IN CABLE ASSEMBLY
SCRUB HEAD POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = HEAD DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
PARK BRAKE SW. (N.C.H.O.)
(SW. RELEASED = CLOSED = BRAKE ON)
(SW. HELD = OPEN = BRAKE OFF)
SQUEEGEE POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
AUX2_IN
AUX3_IN
I-DRIVE_STATUS
EC-H2O CELL
ECHO WCM PUMP
CAN-/GRN
CAN+/YEL
43/ORA
43/ORA
11/PNK38/GRY
11/PNK
16/BLU16/BLU
13/BLK
6/BLU6/BLU
BLK
WHT
RED
30/TAN
29/WHT
31/PNK
13/BLK17/PUR
13/BLK
13/BLK
13/BLK
46/BLU
50/TAN
13/BLK28/GRY
13/BLK26/BLU
13/BLK25/GRN
28/GRY
3EB/ORA
46/BLU
46/BLU
13/BLK
13/BLK
13/BLK
52/BRN
52/BRN50/TAN
9EA/WHT
13EA/BLK-WHT
CAN-/GRN
CAN+/YEL
13/BLK
NAT/06NAT/06
CAN+/YEL
CAN-/GRN
50/TAN
13/BLK32/BRN
GRN15/GRN 13/BLKBLU
23/ORA
18/GRY
RED
BLK20/TAN
19/WHT
1/RED BLUE
12/BRN
12/BRN
24/YEL
24/YEL
22/BRN
21/PNK
14/YEL
6/BLU
6/BLU
13/BLK13/BLK
1/RED 1/RED
40/TAN
41/PNK
42/BRN
4EA/YEL
4EB/YEL
3EA/ORA
66/BLU
67/PUR
13
CAN-
CAN+
1
46 50
11
16
6
46
50
28
CAN-
CAN+
40
41
42
FUSE-1
70A
SOLUTION VALVE: SV-1
4
SW-10
PRESS NC, OPENS @ 6PSI +/-2PSI = FAULT
COM
NC
NO
2
MACHINE CONTROL
B+
J6
GND
J7
HALF_1B
J10-4
HALF_0B
J10-2
HALF_2
J10-6
HALF_2B+
J10-5
NOT_USED1
J3-4
SHIELD1
J3-3
CAN-1
J3-2
CAN+1
J3-1
OPEN4
J8-5
INPUT_0
J4-4
HALF_3
J8-3
HALF_3B+
J8-4
VALVE_OUT
J8-2
RETURN
J8-1
INPUT_1
J4-3
INPUT_5
J4-7
INPUT_4
J4-5
INPUT_3
J4-1
INPUT_2
J4-2
I-DRIVE_EN
J9-1
E-STOP_OUT
J9-2
INPUT_6
J4-6
KSI
J8-7
HOURMETER
J8-9
POT_LOW
J8-10
WIPER
J8-11
POT_+5VDC
J8-12
I-DRIVE_B+
J9-7
PUMP_OUT
J8-6
OPEN1
J9-6
OPEN2
J9-8
OPEN3
J9-9
TX_OUT
J1-1
RX_IN
J1-2
232_GND
J1-3
CAN+2
J2-1
CAN-2
J2-2
SHIELD2
J2-3
NOT_USED2
J2-4
DIGITAL_GND1
J9-10
DIGITAL_GND2
J4-8
DIGITAL_GND3
J8-8
AUX_2
J9-3
AUX_3
J9-4
STATUS
J9-5
HALF_1A
J10-3
HALF_0A
J10-1
1
6 5
4
CB-3
4A
EC-H20 MODULE
VCC_1
J12-11
GND_1
J12-5
VALVE_SUPPLY
J12-13
VALVE_OUTPUT
J12-14
VCC_2
J12-12
GND_2
J12-6
CELL_A1
J11-4
CELL_A2
J11-5
CELL_B1
J11-3
CELL_B2
J11-6
FLUSH_GND
J11-1
FLUSH_SW
J11-2
PRESS_IN
J12-9
CAN+
J12-2
CAN-
J12-3
PUMP
J12-8
OPEN_1
J12-1
OPEN_2
J12-4
OPEN_3
J12-7
OPEN_4
J12-10
3
MTR-7
DET. PUMP
2 1
+ -
C-1
CAPACITOR, 0.01UF, 200V
2
M1A
EC-H2O RELAY
8586
1
3
MTR-3
N.O.
SW-5
DET. TANK LEVEL
1 2
M1B
EC-H2O RELAY
30 87
MTR-6
2
CB-2
4A
POT-2
DET. METERING POT.
3
2
1
6
MTR-2
SCRUB MOTOR-1
2 1
3
12
+ -
4
1
4
D-1
MTR-4
VAC FAN
2 1
5
MTR-5
SCRUB HEAD ACT.
4 3
3

14 T300, T300e Service Information (3-2017)
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300 (DRIVE MODEL) - 3 of 3
J2-9 NOT USED
NO CONNECTION
BAIL SWITCH (N.O.)
SW-4
NO CONNECTIONBAIL SW. HARNESS
BAIL SWITCH INPUT @J4-4: 0V OR 5V
0V = NEUTRAL / SCRUBMTR OFF.
5V = MAX. PROPEL / BURNISH MTR ON.
USER INTERFACE MODULE PROPEL SYSTEM
SWITCHED/FUSED/B+
CHARGER INTERLOCK SWITCH (N.C.) OFF-BOARD CHARGER ONLY: SW OPEN = CHARGING
N.O. N.C.
COM
B+ W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY
(2) 12VDC BATTERIES
OFF BOARD CHARGER CABLE ASSY
J2-10
J2-11 NOT USED
NOT USED
J2-8
NOT USED
BATTERY+
CAN COMMUNICATION
BATTERY+
AC PLUG
RS232 DEBUG PORT
JTAG PORT
J2-12
J2-6
MOM. SWITCH. TOGGLES
EC-H2O ON/OFF
J2-13
NOT USED
NOT USED
NOT USED
J2-14
J2-15
I-DRIVE STATUS
AUX2 OUT
AUX3_OUT
I-DRIVE SUPPLY VOLTAGE DETECT
PROPEL ENABLE
(GND. = TURN OFF PROPEL)
CABLE, CHARGER
USB PORT
J1-6 J1-7 J1-8 J1-9
J2-1
J2-5
J2-3 J2-4
CABLE, CHARGER
(GND. = SCRUB SPEED)
BATTERY / CHARGER SYSTEMS
STATIC GROUNDING
(PART OF MAIN HARNESS
AND OP.STATION HARNESS)
J2-7
STATIC GROUND
@THE SCRUBHEAD
J2-2 SW-1: KEY SWITCH
REVERSE SWITCH
(GND. = REV.)
SW-4
J1-5
J1-4
J1-3
J1-2
J1-1 J10-2
J10-3
J11-1
J11-2
J10-1
POWER ON/OFF CIRCUITRY
PAGE 3 = PAGE 1 WITH
OPTIONAL LCD TOUCHSCREEN.
OPERATOR'S LCD TOUCHSCREEN
CONNECTOR J6
13/BLK13/BLK
38/GRY
30/TAN
31/PNK
CAN+ /YEL
13/BLK1/RED
5/GRN
27/PUR
18/GRY
20/TAN
1/RED
13/BLK
CAN+/YEL
CAN-/GRN
13/BLK13/BLK
CAN- /GRN
2/BRN2/BRN 13/BLK
CABLE/BLK CABLE/RED CABLE/NAT.
SHIELD/GND
54/YEL
7/PUR
1/RED
1/RED
NRB/24NRB/24
NAT/04NAT/04
KNP/14KNP/14
7/PUR
KNP/11KNP/11
9/WHT
10/TAN10/TAN
1/RED
1/RED
16/BLU
13/BLK 13/BLKYRG/8YRG/8
4/YEL
WHT
28/GRY
CABLE/RED CABLE/BLK
SHIELD/GRN
CABLE/NAT.
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
1/RED
4/YEL
5/GRN
6/BLU
6/BLU
6/BLU6/BLU
35/GRN
34/YEL
33/ORA
37/PUR
36/BLU
37/PUR
36/BLU
34/YEL
35/GRN
GRN
GRN
GRN
WHT
1/RED
33/ORA
113/BLK/WHT
6 1
CAN+
CAN-
13
42
40
41
11
16
28
CB-4
30A
INTERFACE MODULE
+5V OUT
J10-1
CAN-
J4-2
CAN+
J4-1
CHARGER INPUT
J7-9
KSI
J7-10
SENSE_GND
J10-3
COMM_GND
J9-1
TX
J9-3
RX
J9-4
V_BUS
J11-1
SHLD_GND
J4-3
N/C
J4-4
SENSOR_IN
J10-4
BAIL OUT
J9-2
GND
J7-8
COM_GND2
J1-3
TX_2
J1-1
RX_2
J1-2
+5VDC_OUT
J7-1
D-
J11-2
D+
J11-3
ID
J11-4
GND_SHIELD
J11-5
LSD_OUT_0
J7-5
LSD_OUT_1
J7-6
LSD_FLYBACK
J7-7
INPUT_0
J7-2
INPUT_1
J7-3
INPUT_2
J7-4
NOT USED
J10-2
VAC FAN2
KEY SWITCH2
12 VDC
+ --
MTR1
PROPEL MOTOR
2 1
100K PROPEL SPEED LIMIT1
POT.-1
1
2
3
OP.STATION BASE1
USER INTERFACE1
EC-H2O1
CB-1
4A
TRANSAXLE1
SW-3:#1
EC-H2O SWITCH
I-DRIVE
B+
P2-B+
KSI
P1-5
M2
P2-M2
M1
P2-M1
GND_REF
P1-13
B-
P2-B-
AUX2_OUT
P1-3
FUSED, B+_OUT
P1-7
STATUS
P1-10
POT LOW
P1-8
REVERSE
P1-12
SPD LIMIT
P1-9
POT HIGH
P1-2
AUX3_OUT
P1-11
PROG_B+
P3-2
LOW SPEED
P1-4
DIGITAL_GND
P3-1
TX
P3-3
RX
P3-4
BAIL ON/OFF
P1-1
OPEN_B
P1-6
OPEN_C
P1-14
SW-2
CHARGER: ON BOARD
NC
P2-2
GND
P1-B-
B+
P1-B+
COM
P2-3
CAN+
P2-6
CAN-
P2-10
NO
P2-4
CAN_GND
P2-1
SENSE+
P2-5
SENSE-
P2-14
RESERVED3
P2-11
LED+
P2-12
LED-
P2-13
RESERVED1
P2-8
RESERVED2
P2-9
RETURN
P2-7
REAR FRAME1
12 VDC
+ --

T300, T300e Service Information (3-2017) 15
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300 (PUSH MODEL) - 1 of 3
BATTERY / CHARGER SYSTEMS
POWER ON/OFF
CABLE, CHARGER
CABLE, CHARGER
CHARGER INTERLOCK SWITCH (N.C.) OFF-BOARD CHARGER ONLY: SW. OPEN = CHARGING
N.O. N.C.
COM
CAN COMMUNICATION
AC PLUG
RS232 DEBUG PORT
USER INTERFACE MODULE PROPEL SYSTEM
BATTERY+
BATTERY+
SW-1: KEY SWITCH
SWITCHED/FUSED/B+
JTAG PORT
J2-1
J2-5
J2-3 J2-4
J2-2
J1-6 J1-7 J1-8 J1-9
NO CONNECTION
BAIL SWITCH (N.O.)
SW-4
NO CONNECTIONBAIL SW. HARNESS
BAIL SWITCH INPUT @J4-4: 0V OR 5V
0V = NEUTRAL / BURNISH MTR OFF.
5V = MAX. PROPEL / BURNISH MTR ON.
J2-12
B+ W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY
(2) 12VDC BATTERIES
J2-8
NOT USED
J2-10
J2-11 NOT USED
NOT USED
OFF BOARD CHARGER CABLE ASSY
USB PORT
STATIC GROUNDING
(PART OF MAIN HARNESS
AND OP.STATION HARNESS)
J2-7
STATIC GROUND
@THE SCRUBHEAD
OPERATOR'S SWITCH/LED TOUCHPANEL
J9: 20 PINS J8: 15 PINS
J2-9 NOT USED
J2-6
MOM. SWITCH. TOGGLES
EC-H2O ON/OFF
NOT USED
NOT USED
J2-14
J2-15
J2-13
NOT USED
1/RED
5/GRN
CAN- /GRN
7/PUR
7/PUR
4/YEL
1/RED
CAN+ /YEL
113/BLK/WHT
1/RED
1/RED
6/BLU6/BLU
1/RED
1/RED
13/BLK13/BLK
CAN+/YEL
CAN-/GRN
4/YEL
5/GRN
6/BLU
6/BLU
CABLE/BLK CABLE/RED
CABLE/NAT. SHIELD/GND
30/TAN
31/PNK
13/BLK13/BLK
13/BLK
13/BLK1/RED
20/TAN
27/PUR
18/GRY
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
38/GRY
2/BRN 13/BLK2/BRN
54/YEL
CAN+
CAN-
1
13
6
INTERFACE MODULE
+5V OUT
J4-1
CAN-
J3-2
CAN+
J3-1
CHARGER INPUT
J7-9
KSI
J7-10
SENSE_GND
J4-3
COMM_GND
J5-1
TX
J5-3
RX
J5-4
V_BUS
J6-1
SHLD_GND
J3-3
N/C
J3-4
SENSOR_IN
J4-4
BAIL OUT
J5-2
GND
J7-8
COM_GND2
J2-3
TX_2
J2-1
RX_2
J2-2
+5VDC_OUT
J7-1
D-
J6-2
D+
J6-3
ID
J6-4
GND_SHIELD
J6-5
LSD_OUT_0
J7-5
LSD_OUT_1
J7-6
LSD_FLYBACK
J7-7
INPUT_0
J7-2
INPUT_1
J7-3
INPUT_2
J7-4
NOT USED
J4-2
JTAG
J1-1
12 VDC
+ --
SW-2
CHARGER: ON BOARD
NC
P2-2
GND
P1-B-
B+
P1-B+
COM
P2-3
CAN+
P2-6
CAN-
P2-10
NO
P2-4
CAN_GND
P2-1
SENSE+
P2-5
SENSE-
P2-14
RESERVED3
P2-11
LED+
P2-12
LED-
P2-13
RESERVED1
P2-8
RESERVED2
P2-9
RETURN
P2-7
VAC FAN1
KEY SWITCH1
12 VDC
+ --
OP.STATION BASE
CB-1
4A
REAR FRAME
TRANSAXLE
EC-H2O
USER INTERFACE
SW-3
EC-H2O SWITCH

16 T300, T300e Service Information (3-2017)
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300 (PUSH MODEL) - 2 of 3
GROUND
CAN COMMUNICATION
INCLUDED IN CABLE ASSEMBLY
BATTERY+
37A
EC-H2O MODULE
PREMIUM CONTROLLER
SWITCHED/FUSED/B+
HOUR METER
4A ECHO MODULE, CB-3 STATUS
4A ECHO PUMP, CB-4 STATUS
4A ECHO BREAKER1 SENSE 4A ECHO BREAKER2 SENSE
CAN COMMUNICATION
(A) (B)
ECHO/FAST PUMP
SCRUB HEAD LOW DOWN PRESS LEVEL
(CLOSED = DP LEVEL OBTAINED)
SW-11: (INSIDE SCRUB ACTUATOR)
NOT USED OPT. DET. METERING
19A
3-5A
OPT. DET. METERING
0.5A
0.5A
INCLUDED IN CABLE ASSEMBY
SCRUB HEAD POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = HEAD DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
PARK BRAKE SW. (N.C.H.O.)
(SW. RELEASED = CLOSED = BRAKE ON)
(SW. HELD = OPEN = BRAKE OFF)
SQUEEGEE POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
SW-7
SW-8
SW-6
SW-11
EC-H20 FLUSH SW.
OPT. EC-H2O MODULE HARNESS
EC-H2O CELL
EC-H2O WCM PUMP
CAN-/GRN
CAN+/YEL
3/ORA1/RED
13/BLK
6/BLU6/BLU
13/BLK17/PUR
13/BLK
13/BLK
46/BLU
50/TAN
50/TAN43/ORA
43/ORA
46/BLU
46/BLU
13/BLK
13/BLK
52/BRN
52/BRN50/TAN
CAN-/GRN
CAN+/YEL
13/BLK
NAT/06NAT/06
CAN+/YEL
CAN-/GRN
13/BLK32/BRN
15/GRN 13/BLKGRNBLU
BLK
WHT
RED
30/TAN
29/WHT
31/PNK
23/ORA
18/GRY
RED
BLK20/TAN
19/WHT
12/BRN
12/BRN
24/YEL
24/YEL
22/BRN
21/PNK
14/YEL
6/BLU
6/BLU
13/BLK13/BLK
1/RED1/RED
13/BLK26/BLU
13/BLK25/GRN
13/BLK28/GRY
9EA/WHT
13EA/BLK-WHT
3EB/ORA
4EA/YEL
4EB/YEL
3EA/ORA
66/BLU
67/PUR
13
CAN-
CAN+
1
6
46
50
46 50
CAN-
CAN+
4
SW-10
PRESS NC, OPENS @ 6PSI +/-2PSI = FAULT
COM
NC
NO
3
MACHINE CONTROL
B+
J6
GND
J7
HALF_1B
J10-4
HALF_0B
J10-2
HALF_2
J10-6
HALF_2B+
J10-5
NOT_USED1
J3-4
SHIELD1
J3-3
CAN-1
J3-2
CAN+1
J3-1
OPEN4
J8-5
INPUT_0
J4-4
HALF_3
J8-3
HALF_3B+
J8-4
VALVE_OUT
J8-2
RETURN
J8-1
INPUT_1
J4-3
INPUT_5
J4-7
INPUT_4
J4-5
INPUT_3
J4-1
INPUT_2
J4-2
I-DRIVE_EN
J9-1
E-STOP_OUT
J9-2
INPUT_6
J4-6
KSI
J8-7
HOURMETER
J8-9
POT_LOW
J8-10
WIPER
J8-11
POT_+5VDC
J8-12
I-DRIVE_B+
J9-7
PUMP_OUT
J8-6
OPEN1
J9-6
OPEN2
J9-8
OPEN3
J9-9
TX_OUT
J1-1
RX_IN
J1-2
232_GND
J1-3
CAN+2
J2-1
CAN-2
J2-2
SHIELD2
J2-3
NOT_USED2
J2-4
DIGITAL_GND1
J9-10
DIGITAL_GND2
J4-8
DIGITAL_GND3
J8-8
AUX_2
J9-3
AUX_3
J9-4
STATUS
J9-5
HALF_1A
J10-3
HALF_0A
J10-1
M1A
EC-H2O RELAY
8586
MTR-3
2
2
3
4
MTR-6
EC-H20 MODULE
VCC_1
J12-11
GND_1
J12-5
VALVE_SUPPLY
J12-13
VALVE_OUTPUT
J12-14
VCC_2
J12-12
GND_2
J12-6
CELL_A1
J11-4
CELL_A2
J11-5
CELL_B1
J11-3
CELL_B2
J11-6
FLUSH_GND
J11-1
FLUSH_SW
J11-2
PRESS_IN
J12-9
CAN+
J12-2
CAN-
J12-3
PUMP
J12-8
OPEN_1
J12-1
OPEN_2
J12-4
OPEN_3
J12-7
OPEN_4
J12-10
4
6 5
CB-2
4A
MTR-4
VAC FAN
2 1
SOLUTION VALVE: SV-1
M1B
EC-H2O RELAY
30 87
MTR-5
SCRUB HEAD ACT.
2 1
N.O.
SW-5
DET. TANK LEVEL
1 2
D-1
3
1
MTR-2
SCRUB MOTOR
2 1
1
CB-3
4A
1
POT-3
DET. METERING POT.
3
2
1
4
3
6 5
+ -
2
2
+ -
C-1
CAPACITOR, 0.01UF, 200V
MTR-7
DET. PUMP
2 1
5
FUSE-1
70A

T300, T300e Service Information (3-2017) 17
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300 (PUSH MODEL) - 3 of 3
STATIC GROUNDING
(PART OF MAIN HARNESS
AND OP.STATION HARNESS)
J2-7
STATIC GROUND
@THE SCRUBHEAD
USER INTERFACE MODULE PROPEL SYSTEM
SWITCHED/FUSED/B+
CHARGER INTERLOCK SWITCH (N.C.) OFF-BOARD CHARGER ONLY: SW OPEN = CHARGING
N.O. N.C.
COM
BATTERY+
CAN COMMUNICATION
BATTERY+
AC PLUG
RS232 DEBUG PORT
J1-6 J1-7 J1-8 J1-9
NO CONNECTION
BAIL SWITCH (N.O.)
SW-4
NO CONNECTIONBAIL SW. HARNESS
BAIL SWITCH INPUT @J4-4: 0V OR 5V
0V = NEUTRAL / SCRUBMTR OFF.
5V = MAX. PROPEL / BURNISH MTR ON.
JTAG PORT
J2-12
B+ W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY
(2) 12VDC BATTERIES
J2-9 NOT USED
J2-8
NOT USED
J2-10
J2-11 NOT USED
NOT USED
CABLE, CHARGER
J2-1
J2-5
J2-3 J2-4
CABLE, CHARGER
J2-6
MOM. SWITCH. TOGGLES
EC-H2O ON/OFF
BATTERY / CHARGER SYSTEMS
NOT USED
NOT USED
J2-14
J2-15
J2-13
NOT USED
J2-2 SW-1: KEY SWITCH
OFF BOARD CHARGER CABLE ASSY
USB PORT
POWER ON/OFF CIRCUITRY
PAGE 3 = PAGE 1 WITH
OPTIONAL LCD TOUCHSCREEN.
OPERATOR'S LCD TOUCHSCREEN
CONNECTOR J6
13/BLK 13/BLK13/BLK
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
CAN+ /YEL
5/GRN
1/RED
CABLE/BLK
CABLE/RED CABLE/NAT.
SHIELD/GND
30/TAN
31/PNK
13/BLK13/BLK
CAN+/YEL
CAN-/GRN
13/BLK
CAN- /GRN
13/BLK1/RED
38/GRY
7/PUR
1/RED
1/RED
7/PUR
20/TAN
27/PUR
18/GRY
1/RED
4/YEL
2/BRN2/BRN 13/BLK
54/YEL
1/RED
4/YEL
5/GRN
6/BLU
6/BLU
6/BLU6/BLU
1/RED
113/BLK/WHT
6 1
CAN+ CAN-
13
SW-3
EC-H2O SWITCH
TRANSAXLE1
SW-3
CHARGER: ON BOARD
NC
P2-2
GND
P1-B-
B+
P1-B+
COM
P2-3
CAN+
P2-6
CAN-
P2-10
NO
P2-4
CAN_GND
P2-1
SENSE+
P2-5
SENSE-
P2-14
RESERVED3
P2-11
LED+
P2-12
LED-
P2-13
RESERVED1
P2-8
RESERVED2
P2-9
RETURN
P2-7
INTERFACE MODULE
+5V OUT
J10-1
CAN-
J4-2
CAN+
J4-1
CHARGER INPUT
J7-9
KSI
J7-10
SENSE_GND
J10-3
COMM_GND
J9-1
TX
J9-3
RX
J9-4
V_BUS
J11-1
SHLD_GND
J4-3
N/C
J4-4
SENSOR_IN
J10-4
BAIL OUT
J9-2
GND
J7-8
COM_GND2
J1-3
TX_2
J1-1
RX_2
J1-2
+5VDC_OUT
J7-1
D-
J11-2
D+
J11-3
ID
J11-4
GND_SHIELD
J11-5
LSD_OUT_0
J7-5
LSD_OUT_1
J7-6
LSD_FLYBACK
J7-7
INPUT_0
J7-2
INPUT_1
J7-3
INPUT_2
J7-4
NOT USED
J10-2
USER INTERFACE1
REAR FRAME1
CB-4
4A
12 VDC
+ --
OP.STATION BASE1
KEY SWITCH2
EC-H2O1
VAC FAN2
12 VDC
+ --

18 T300, T300e Service Information (3-2017)
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300e (DRIVE MODEL) - 1 of 2
BATTERY / CHARGER SYSTEMS
CABLE, CHARGER
CHARGER INTERLOCK SWITCH (N.C.) OFF-BOARD CHARGER ONLY: SW. OPEN = CHARGING
N.O. N.C.
COM
(2) 12VDC BATTERIES
AC PLUG
SCRUB BRUSH RELAY
VACFAN RELAY
BASE CONTROL MODULE PROPEL SYSTEM
BATTERY+
BATTERY+
SW-1: KEY SWITCH
JTAG PORT
NO CONNECTION
BAIL SW. HARNESS
BAIL SWITCH INPUT @J4-4: 0V OR 5V
0V = NEUTRAL / SCRUBMTR OFF.
5V = MAX. PROPEL / SCRUBMTR ON.
BAIL SWITCH (N.O.)
SW-7
NO CONNECTION
RS232 DEBUG PORT
CABLE, CHARGER
B+/GND CABLE ASSY B+/GND CABLE ASSY
CAN COMMUNICATION
AUX. SCRUB BRUSH RELAY
HOURMETER
HM-1
J2-1
J2-8
J2-4 J2-3
J2-12
J1-6 J1-7 J1-8 J1-9
RED NAT.
SHIELD
J10-1
J2-5
J2-2
J2-6
PROPEL SPEED
(LOW = PROPEL SPEED)
OFF BOARD CHARGER CABLE ASSY
J2-10
5-WS11-2J
SW-6
REVERSE SWITCH
(GND. = REV.)
SW-9
J1-5
J1-4
J1-3
J1-2
J1-1 J10-2
J10-3
J11-1
J11-2
USB PORT
OPERATOR'S SWITCH/LED TOUCHPANEL
J9: 20 PINS
SCRUB HEAD POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = HEAD DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
PARK BRAKE SW. (N.C.H.O.)
(SW. RELEASED = CLOSED = BRAKE ON)
(SW. HELD = OPEN = BRAKE OFF)
E-STOP
( 0VDC = STOP)
SW-8
PROPEL ON/OFF FROM E-STOP
( B+ = ENABLE PROPEL)
E-STOP SWITCH (N.C.) (OPEN = STOP)
J2-9
( MOM. SWITCH. TOGGLES
EC-H2O ON/OFF )
J2-13
J2-14
J2-15
NOT USED
NOT USED
SQUEEGEE POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
1/RED
4/YEL 5/GRN
13/BLK 13/BLK
26/BLU
29/WHT
13/BLK
1/RED
9/WHT
10/TAN10/TAN
1/RED 1/RED
38/GRY
30/TAN
31/PNK
12/BRN
15/GRN
8/GRY8/GRY
1/RED
13/BLK
2/BRN
113/BLK/WHT
CAN+ /YEL
CAN- /GRN
13/BLK
7/PUR
20/TAN
7/PUR
6/BLU
6/BLU 42/BRN 13/BLK
13/BLK13/BLK
CAN+/YEL
CAN-/GRN
6/BLU
BLK
20/TAN
6/BLU
6/BLU
5/GRN
1/RED
4/YEL
2/BRN
27/PUR
13/BLK1/RED
13/BLK
20/TAN6/BLU
13/BLK27/PUR
13/BLK18/GRY 18/GRY
27/PUR
27/PUR
1/RED
35/GRN
34/YEL
33/ORA
37/PUR
36/BLU
37/PUR
36/BLU
34/YEL
35/GRN
GRN
GRN
GRN
WHT
WHT
33/ORA
38/GRY
38/GRY
38/GRY
38/GRY 3/ORA 13/BLK13/BLK13/BLK
6/BLU
6/BLU
38/GRY
20/TAN
42/BRN 13/BLK
54/YEL6/BLU
13/BLK
54/YEL
1
13
38
CAN+
CAN-
27
27
6
38
38
38
6
CB-6
20A
CB-4
30A
100K PROPEL SPEED LIMIT
POT.-1
1
2
3
M3AVAC FAN RELAY
8586
MTR1
PROPEL MOTOR
2 1
SW-3
EC-H2O SWITCH
12 VDC
+ --
M4B
3087
D-2
M1A
AUX. SCRUB BRUSH RELAY
8586
MTR2
SCRUB BRUSH MOTOR
21
INTERFACE MODULE
+5V OUT
J4-1
CAN-
J3-2
CAN+
J3-1
CHARGER INPUT
J7-9
KSI
J7-10
SENSE_GND
J4-3
COMM_GND
J5-1
TX
J5-3
RX
J5-4
V_BUS
J6-1
SHLD_GND
J3-3
N/C
J3-4
SENSOR_IN
J4-4
BAIL OUT
J5-2
GND
J7-8
COM_GND2
J2-3
TX_2
J2-1
RX_2
J2-2
E-STOP
J7-1
D-
J6-2
D+
J6-3
ID
J6-4
GND_SHIELD
J6-5
LSD_OUT_0
J7-5
LSD_OUT_1
J7-6
LSD_FLYBACK
J7-7
INPUT_0
J7-2
INPUT_1
J7-3
INPUT_2
J7-4
NOT USED
J4-2
JTAG
J1-1
M4A
SCRUB BRUSH RELAY
8586
I-DRIVE
B+
P2-B+
KSI
P1-5
M2
P2-M2
M1
P2-M1
GND_REF
P1-13
B-
P2-B-
AUX2_OUT
P1-3
FUSED, B+_OUT
P1-7
STATUS
P1-10
POT LOW
P1-8
REVERSE
P1-12
SPD LIMIT
P1-9
POT HIGH
P1-2
AUX3_OUT
P1-11
PROG_B+
P3-2
LOW SPEED
P1-4
DIGITAL_GND
P3-1
TX
P3-3
RX
P3-4
BAIL ON/OFF
P1-1
OPEN_B
P1-6
OPEN_C
P1-14
CB-1
4A
M3B
3087
12 VDC
+ --
M1B
3087
CB-5
37A
+ -
SV-1
SOLUTION (CONV.)
D-1
MTR3
VAC FAN MOTOR
21
SW-2
CHARGER: ON BOARD
NC
P2-2
GND
P1-B-
B+
P1-B+
COM
P2-3
CAN+
P2-6
CAN-
P2-10
NO
P2-4
CAN_GND
P2-1
SENSE+
P2-5
SENSE-
P2-14
RESERVED3
P2-11
LED+
P2-12
LED-
P2-13
RESERVED1
P2-8
RESERVED2
P2-9
RETURN
P2-7

T300, T300e Service Information (3-2017) 19
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300e (DRIVE MODEL) - 2 of 2
BATTERY+ GROUND
CAN COMMUNICATION
(A) (B) EC-H2O/FAST PUMP
EC-H2O MODULE
STATIC GROUNDING
(PART OF MAIN HARNESS
AND OP.STATION HARNESS)
J2-7
STATIC GROUND
@THE SCRUBHEAD
SWITCHED/FUSED/B+
OPT. EC-H2O MODULE HARNESS
SW-11
EC-H20 FLUSH SW.
EC-H2O CELL
EC-H2O WCM PUMP
52/BRN
52/BRN50/TAN
50/TAN43/ORA
43/ORA
CAN+/YEL
CAN-/GRN
13/BLKNAT/06NAT/06
CAN+/YEL
CAN-/GRN
46/BLU
46/BLU
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
6/BLU
13/BLK13/BLK6/BLU
1/RED
3EB/ORA 9EA/WHT
13EA/BLK-WHT
4EA/YEL
4EB/YEL
3EA/ORA
66/BLU
13/BLK13/BLK
67/PUR
1
13
CAN-
CAN+
6
TRANSAXLE
USER INTERFACE
M2B
EC-H2O RELAY
30 87
EC-H20 MODULE
VCC_1
J12-11
GND_1
J12-5
VALVE_SUPPLY
J12-13
VALVE_OUTPUT
J12-14
VCC_2
J12-12
GND_2
J12-6
CELL_A1
J11-4
CELL_A2
J11-5
CELL_B1
J11-3
CELL_B2
J11-6
FLUSH_GND
J11-1
FLUSH_SW
J11-2
PRESS_IN
J12-9
CAN+
J12-2
CAN-
J12-3
PUMP
J12-8
OPEN_1
J12-1
OPEN_2
J12-4
OPEN_3
J12-7
OPEN_4
J12-10
REAR FRAME
R-1
(LOCATED IN HARNESS)
120 OHM
+ -
C-1
CAPACITOR, 0.01UF, 200V
OP.STATION BASE
MTR-5
VAC FAN1
D-3
M2A
EC-H2O RELAY
8586
MTR-6
KEY SWITCH1
SW-10
PRESS NC, OPENS @ 6PSI +/-2PSI = FAULT
COM
NC
NO
CB-2
4A
EC-H2O
CB-3
4A

20 T300, T300e Service Information (3-2017)
GENERAL INFORMATION
ELECTRICAL SCHEMATIC T300e (PUSH MODEL) - 1 of 2
BATTERY / CHARGER SYSTEMS
CABLE, CHARGER
N.O. N.C.
COM
AC PLUG
BASE CONTROL MODULE PROPEL SYSTEM
BATTERY+
BATTERY+
SW-1: KEY SWITCH
JTAG PORT
NO CONNECTION
OPT: BAILSW. HARNESS
BAIL SWITCH INPUT @J4-4: 0V OR 5V
0V = NEUTRAL / SCRUBMTR OFF.
5V = MAX. PROPEL / BURNISH MTR ON.
BAIL SWITCH (N.O.)
SW-7
NO CONNECTION
RS232 DEBUG PORT
CABLE, CHARGER
SW-8
CAN COMMUNICATION
HOURMETER
HM-1
J2-1
J2-8
J2-4 J2-3
J2-12
J1-6 J1-7 J1-8 J1-9
RED NAT.
SHIELD
J2-5
J2-2
SCRUB BRUSH RELAY
YALERNAFCAV
AUX. SCRUB BRUSH RELAY
B+/GND CABLE ASSY
(2) 12VDC BATTERIES
OFF BOARD CHARGER CABLE ASSY #1077634
USB PORT
STATIC GROUNDING
(PART OF MAIN HARNESS
AND OP.STATION HARNESS)
J2-7
STATIC GROUND
@THE SCRUBHEAD
OPERATOR'S SWITCH/LED TOUCHPANEL
J9: 20 PINS
#1062385
SWITCHED/FUSED/B+
J2-10
J2-11
J2-9
SW-4
SW-5
( MOM. SWITCH. TOGGLES
EC-H2O ON/OFF )
J2-13
J2-14
J2-15
NOT USED
NOT USED
SCRUB HEAD POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = HEAD DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
PARK BRAKE SW. (N.C.H.O.)
(SW. RELEASED = CLOSED = BRAKE ON)
(SW. HELD = OPEN = BRAKE OFF)
SQUEEGEE POSITION (N.C.H.O.)
(SW. RELEASED = CLOSED = DOWN)
(SW. HELD = OPEN = FULL UP POSITION)
CHARGER INTERLOCK SWITCH (N.C.) OFF-BOARD CHARGER ONLY: SW OPEN = CHARGING
1/RED
4/YEL 5/GRN
1/RED
30/TAN
31/PNK
1/RED
13/BLK
3/ORA
113/BLK/WHT
CAN+ /YEL
CAN- /GRN
13/BLK
7/PUR
7/PUR
6/BLU
KLB/31KLB/31
CAN+/YEL
CAN-/GRN
20/TAN6/BLU
20/TAN
BLK
6/BLU
6/BLU
6/BLU
6/BLU
5/GRN
1/RED
4/YEL
26/BLU
29/WHT13/BLK
13/BLK
6/BLU
1/RED
12/BRN
15/GRN
13/BLK1/RED
1/RED
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
105/GRN
42/BRN 13/BLK
13/BLK
54/YEL6/BLU
38/GRY
13/BLK27/PUR
18/GRY 13/BLK18/GRY
2/BRN2/BRN 13/BLK
13/BLK13/BLK
1
13
CAN+
CAN-
6
M1B
3087
VAC FAN1
INTERFACE MODULE
+5V OUT
J4-1
CAN-
J3-2
CAN+
J3-1
CHARGER INPUT
J7-9
KSI
J7-10
SENSE_GND
J4-3
COMM_GND
J5-1
TX
J5-3
RX
J5-4
V_BUS
J6-1
SHLD_GND
J3-3
N/C
J3-4
SENSOR_IN
J4-4
BAIL OUT
J5-2
GND
J7-8
COM_GND2
J2-3
TX_2
J2-1
RX_2
J2-2
+5VDC_OUT
J7-1
D-
J6-2
D+
J6-3
ID
J6-4
GND_SHIELD
J6-5
LSD_OUT_0
J7-5
LSD_OUT_1
J7-6
LSD_FLYBACK
J7-7
INPUT_0
J7-2
INPUT_1
J7-3
INPUT_2
J7-4
NOT USED
J4-2
JTAG
J1-1
CB-5
37A
KEY SWITCH1
M4ASCRUB BRUSH RELAY
8586
MTR2
SCRUB BRUSH MOTOR
21
OP.STATION BASE
12 VDC
+ --
D-1
MTR3
VAC FAN MOTOR
21
REAR FRAME
USER INTERFACE
TRANSAXLE
CB-1
4A
EC-H2O
SW-3
EC-H2O SWITCH
12 VDC
+ --
+ -
CB-6
20A
M1A
AUX. SCRUB BRUSH RELAY
8586
D-2
SV-1
SOLUTION (CONV.)
SW-2
CHARGER: ON BOARD
NC
P2-2
GND
P1-B-
B+
P1-B+
COM
P2-3
CAN+
P2-6
CAN-
P2-10
NO
P2-4
CAN_GND
P2-1
SENSE+
P2-5
SENSE-
P2-14
RESERVED3
P2-11
LED+
P2-12
LED-
P2-13
RESERVED1
P2-8
RESERVED2
P2-9
RETURN
P2-7
M3B
3087
M3A
VAC FAN RELAY
8586
M4B
3087