Page 1 T380AMR Rider-Scrubber English EN Service Manual ® Hygenic Fully Cleanable Recovery Tank ® TennantTrue Parts ™ Insta-Click Magnetic Disk ATTENTION: DO NOT tip the machine onto its side to replace parts or perform any maintenance procedures. Sensitive robotic components could be damaged or bumped out of adjustment if the machine is tipped onto its side.
Page 2: Intended Use
This product may contain portions of software that have various 3rd party licenses. More information can be found at: www.tennantco. com/opensource Speciﬁ cations and parts are subject to change without notice. Original Instructions. Copyright © 2020, 2022 Tennant Company. All rights reserved.
Page 3: Table Of Contents
Steering Gear Chain ........43 Machine Failed To Propel ......77 Steering U-Joint ........43 Scrub Motor On ........78 Squeegee Blades ..........44 Scrub Motor Operational Matrix ....79 Replacing (Or Rotating) The Scrub Motor Failed To Turn On ....79 Squeegee Blades ........44 T380AMR 9021011 (09-2022)
Page 4 From The Machine ......102 Remove/Reinstall/Replace The Main Frame Group .........103 Steering Motor/Steering Gear Controls/Sensors/Cameras ......104 Box/Steering Position Sensor....131 Instrument Panel Group ......104 Remove/Reinstall/Replace The Steering Ampliﬁ er Module ....134 Remove/Reinstall/Replace The Touchscreen ........105 Remove/Reinstall/Replace The Control Panel........106 T380AMR 9021011 (09-2022)
Page 5 Adjusting The Squeegee Assembly ..174 Options ............176 ec-H2O Nanoclean Group ......176 Remove/Reinstall/Replace The ec-H2O Module (Option) ....177 Remove/Reinstall/Replace The ec-H2O Solution Pump (Option)..178 Remove/Reinstall/Replace The ec-H2O Pressure Switch/ Dispenser Pump/Water Solenoid Valve (Option) ........178 Service The ec-H2O Module (Option) ..180 T380AMR 9021011 (09-2022)
Page 6: Important Safety Instructions - Save These Instructions
- In areas with possible falling objects. - With pads or accessories not supplied or The following information signals potentially approved by Tennant. The use of other pads dangerous conditions to the operator. Know may impair safety. when these conditions can exist. Locate all safety devices on the machine.
Page 7 - Do not modify the machine from its original 5. Before leaving or servicing machine: design. - Stop on level surface. - Use Tennant supplied or approved - Turn off machine and remove key. replacement parts. T380AMR 9021011 (09-2022)
Page 8 - Do not load/unload on ramp inclines that exceed 15.8% / 9° grade. - Lower scrub head and squeegee before tying down machine. - Turn off machine and remove key. - Block machine tires. - Use tie-down straps to secure machine. T380AMR 9021011 (09-2022)
Page 9: Warning Label
POUR VOTRE SECURITE Lisez le manuel avant 25815 d’utiliser la machine. Located on solution tank near PARA SEGURIDAD solution tank ﬁ ll port. Lea el manual antes de operar la máquina. Located on front electrical access panel. T380AMR 9021011 (09-2022)
Page 10 WARNING LABEL - Magnetic Field WARNING LABEL - Hazard. Magnetic pad driver/brush can Spinning brush. be harmful to those with pacemakers Keep hands away. or medical implants. Located on top of Located on Insta-Click magnetic pad scrub head. driver/brush. T380AMR 9021011 (09-2022)
Page 11: General Information
G. Recovery tank drain hose S. Front perimeter guard H. Solution tank ﬁ ll cap T. Scrub head I. Solution tank drain hose U. Squeegee J. Solution tank V. Left perimeter guard K. Right perimeter guard L. Recovery tank T380AMR 9021011 (09-2022)
Page 12: Controls And Instruments
C. 1-Step button M. Blue start/pause button D. Horn button N. Signal lights (Rear) E. Brush pressure button O. Flashing light F. Brush pressure indicator lights G. Solution ﬂ ow indicator lights H. Solution ﬂ ow button T380AMR 9021011 (09-2022)
Page 13: Cameras And Sensors
C. Sensors – Front 2D camera D. Sensors – Front 3D camera E. Sensors - Side 2D camera (located on each side of machine) F. Sensors - Side 3D camera (located on each side of machine) G. Sensors - Lower LIDAR T380AMR 9021011 (09-2022)
Page 14 GENERAL INFORMATION T380AMR 9021011 (09-2022)
Page 15: Electrical Schematic Symbols
3 Phase AC Induction Motor Energized Relay Coil Adaptor Harness Motor Encoder N.C. Relay Contacts Sensor (Variable Resistor) Notes Momenary Switch N.O. N.O. Relay Contacts Assembly Contact Switch N.C. Horn or Alarm AC Plug Solenoid Valve Capacitor Light T380AMR 9021011 (09-2022)
Page 16: Electrical Schematic Na/Apac S/N (10000000-20000000)
GENERAL INFORMATION ELECTRICAL SCHEMATIC NA/APAC S/N (10000000-20000000) 1076753_00 T380AMR 9021011 (09-2022)
Page 17 GENERAL INFORMATION ELECTRICAL SCHEMATIC NA/APAC S/N (10000000-20000000) 1076753_00 T380AMR 9021011 (09-2022)
Page 18 GENERAL INFORMATION ELECTRICAL SCHEMATIC NA/APAC S/N (10000000-20000000) 1076753_00 T380AMR 9021011 (09-2022)
Page 19 GENERAL INFORMATION ELECTRICAL SCHEMATIC NA/APAC S/N (10000000-20000000) 1076753_00 T380AMR 9021011 (09-2022)
Page 20 GENERAL INFORMATION ELECTRICAL SCHEMATIC NA/APAC S/N (10000000-20000000) 1076753_00 T380AMR 9021011 (09-2022)
Page 21 GENERAL INFORMATION ELECTRICAL SCHEMATIC NA/APAC S/N (10000000-20000000) 1076753_00 T380AMR 9021011 (09-2022)
Page 22 GENERAL INFORMATION T380AMR 9021011 (09-2022)
Page 23: Fastener Torque
424 - 550 Nm 508 - 660 Nm 177 - 230 Nm 409 - 530 Nm 574 - 745 Nm 686 - 890 Nm 227 - 295 Nm 520 - 675 Nm 732 - 950 Nm 879 - 1140 Nm T380AMR 9021011 (09-2022)
Page 24: General Machine Dimensions/Capacities/Performance
Maximum ramp incline for loading – Empty (Manual mode only) 15.8% / 9° Maximum ramp incline for scrubbing - (Manual mode) 7% / 4° Maximum ambient temperature for machine operation 40° C (104° F) Minimum temperature for operating machine scrubbing functions 2° C (36° F) T380AMR 9021011 (09-2022)
Page 25: Power Type
High: 0.50 gpm ec−H2O SYSTEM Item Measure Solution pump 24 Volt DC, 5A, 5.7 LPM (1.5 GPM) open ﬂ ow, 70 psi bypass setting Solution ﬂ ow rate Low: 0.12 gpm Medium: 0.25 gpm High: 0.35 gpm T380AMR 9021011 (09-2022)
Page 26: Machine Dimensions
GENERAL INFORMATION MACHINE DIMENSIONS 635 mm (25 in) 750 mm (29.5 in) 1400 mm (55 in) Wheel base Track 1006 mm (at rear wheels) (39.6 in) 555 mm (21.8 in) 1588 mm (62.5 in) T380AMR 9021011 (09-2022)
Page 27 GENERAL INFORMATION T380AMR 9021011 (09-2022)
Page 28: Maintenance
MAINTENANCE MAINTENANCE T380AMR 9021011 (09-2022)
Page 29: Maintenance Chart
(Check every 100 hours after initial 500 hour check) Tires Check for damage and wear Vacuum fan motor(s) Replace carbon brushes Hours 1250 Scrub brush motors Replace carbon brushes Hours LUBRICANT/FLUID Distilled water SAE 90 weight gear lubricant T380AMR 9021011 (09-2022)
Page 30: Batteries
27°C (80°F) or less. • Allow the charger to complete charging the batteries before re-using the machine. • Maintain the proper electrolyte levels of ﬂ ooded (wet) batteries by checking levels weekly. T380AMR 9021011 (09-2022)
Page 31: Checking The Electrolyte Level
3 mm (0.12 in) below the sight tubes. Before Charging After Charging NOTE: Make sure the battery caps are in place while charging. There may be a sulfur smell after charging batteries. This is normal. T380AMR 9021011 (09-2022)
Page 32: Lithium-Ion Battery
Contact Tennant Service to ﬁ x the fault. – Allow charge cycle to completely charge LED Indicator Status Battery State of Charge battery pack.
Page 33: Charging The Batteries
Refer to the off-board machine. The use of other battery chargers that battery charger owners manual for operating are not supplied and approved by Tennant are instructions. prohibited. Refer to the charger owners manual for additional information. Contact distributor or FOR SAFETY: Do not disconnect the off- Tennant for battery charger recommendations.
Page 34: Battery Charging Status
80% State of to ﬁ nish charging Charge Solid GREEN Charge Complete Machine ready for use Rapid AMBER ﬂ ashing Issue with Battery Detected Contact Service (0.5 second ON; 0.5 second OFF) Solid RED Charger internal failure Contact Service T380AMR 9021011 (09-2022)
Page 35: Hydrolink Battery Watering System (Trojan Battery Option)
6. After adding water, replace the dust cap on the battery ﬁ ll hose and store the hand pump hose inside the machine’s battery compartment for future use. T380AMR 9021011 (09-2022)
Page 36 1. Fully charge batteries prior to using the battery watering system. Do not add water to batteries before charging, the electrolyte level will expand and may overﬂ ow when charging. 2. After charging batteries, check the battery electrolyte level indicators located on the battery covers. T380AMR 9021011 (09-2022)
Page 37 ﬁ rm. The white ﬂ oat will rise when full. High Float = Full 7. After adding water, replace the dust cap on the battery ﬁ ll hose and store the hand pump hose inside the machine’s battery compartment for future use. T380AMR 9021011 (09-2022)
Page 38: Circuit Breakers And Fuses
Replace or check the motor carbon brushes as indicated. Contact trained personnel to check or replace carbon brushes. Carbon Brush Replacement/ Hours Check Vacuum motor (replace) Propel motor (check) Brush motor (replace) 1250 T380AMR 9021011 (09-2022)
Page 39: Cameras And Sensors
Side 2D and 3D cameras are located on each side bottom surfaces are completely clear of all dirt, of the machine. smudges, and/or other debris. Use a ﬂ ashlight to inspect these sensor surfaces and ensure they are thoroughly cleaned. T380AMR 9021011 (09-2022)
Page 40: Scrub Brushes And Pads
2. Turn the machine ON/OFF key switch off. 6. Ensure the brush or pad driver is securely FOR SAFETY: Before leaving or servicing mounted on the brush drive hub. machine, stop on level surface, turn off machine, and remove key. T380AMR 9021011 (09-2022)
Page 41: Replacing The Disk Pad
3. Flip or replace the scrub pad, center the scrub pad on the pad driver. Then reinstall the center disk to secure the pad in place on the pad driver. 4. Reinsert the pad driver into the machine. T380AMR 9021011 (09-2022)
Page 42: Ec-H2O System
ﬂ ow rate for up to 75 minutes. 1. Lift the recovery tank/seat open and engage prop arm to access the ec-H2O cartridge. 4. Install the new cartridge and reconnect the two hoses. Make sure the hose connectors are fully inserted into new cartridge. T380AMR 9021011 (09-2022)
Page 43: Lubrication
3 indicator lights STEERING U-JOINT Solution flow button The steering u-joint is located directly below the steering motor. Check for damage or wear and lubricate the steering u-joint after every 200 hours. 7. Lower the recovery tank. T380AMR 9021011 (09-2022)
Page 44: Squeegee Blades
6. Fully loosen the four knobs on squeegee assembly. This will separate the spring loaded blade retainer from squeegee frame. T380AMR 9021011 (09-2022)
Page 45 9. Squeeze the squeegee frame and blade retainer together and re-tighten the four knobs. 12. Be sure both squeegee tabs are positioned above the scrub head skirt. T380AMR 9021011 (09-2022)
Page 46: Skirts And Seals
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, and remove key. Check the vacuum fan seal for damage and wear 15. Rotate and center the squeegee assembly after every 100 hours of operation. underneath the machine. T380AMR 9021011 (09-2022)
Page 47: Squeegee Seal
Check perimeter guard bristles for debris, damage, and wear daily. The bristles should lightly touch the ﬂ oor. Replace damaged and/or worn bristle assemblies. Left and right perimeter guards. T380AMR 9021011 (09-2022)
Page 48: Tires
Immediately after pushing the machine, remove the screw driver from between the brake release lever and the body of the encoder. NEVER operate the machine with the parking brake disabled. FOR SAFETY: Do not operate machine with the brake disabled. T380AMR 9021011 (09-2022)
Page 49: Transporting The Machine
4. Lower the scrub head and squeegee after the machine is positioned on the trailer or truck. 5. Turn off the machine. 6. Place a block behind each wheel to prevent the machine from rolling. 7. Remove the lower rear shroud from the machine. T380AMR 9021011 (09-2022)
Page 50 10. Ensure all tie-down straps are fully tightened and machine is completely secure on the trailer or truck. 11. Stow/secure all parts removed from the machine in a safe place where they will not be lost or damaged. T380AMR 9021011 (09-2022)
Page 51: Jacking Up The Machine
FOR SAFETY: When servicing machine, block machine tires before jacking machine up. Use a hoist or jack that will support the weight of the machine. Jack machine up at designated locations only. Block machine up with jack stands. T380AMR 9021011 (09-2022)
Page 52: Storage Information
3. Turn the machine power on and operate the solution ﬂ ow system. Turn the machine off when the antifreeze appears at the scrub head. Continue with the freeze protection procedure if machine is equipped with the ec-H2O system. T380AMR 9021011 (09-2022)
Page 53: Troubleshooting
• Will not lower if directional switch is set to reverse • E-Stop button(s) not engaged • Faults on scrub deck actuator output • Lifts to transport position when machine is in reverse • No faults on scrub deck actuator output T380AMR 9021011 (09-2022)
Page 54 ** SOC percentages shown when service device is connected to service terminal may not be accurate. Service device must be connected to the lithium battery control board USB cable for accurate SOC percentage. See ACCESS LITHIUM BATTERY SERVICE SCREEN in LITHIUM BATTERIES section. T380AMR 9021011 (09-2022)
Page 55: Service Diagnostics Tool
Kinetek Control Module. Authorized service providers can download the Service Diagnostics software. Tennant Service personnel have this software installed on their service devices. Use the AMR Service Connector to connect the service device to the Kinetek Control Module. The Kinetek Control Module stores conﬁ...
Page 56 TROUBLESHOOTING 7. Turn the AMR bypass switch counterclockwise to link the machine to the AMR system if ﬁ nished with diagnostic procedures. 8. Reinstall the column access panel back onto the machine after machine diagnostics are complete. T380AMR 9021011 (09-2022)
Page 57: Prepare The Machine For Troubleshooting/Diagnostics/File Transfers
6. Position a jack under the front jack point at the back of the LIDAR bracket. Do Not position the jack at the front of the LIDAR bracket. 3. Contact the Tennant Customer Service Department for additional troubleshooting/diagnostic guidance. T380AMR 9021011 (09-2022)
Page 58 13. Press the DIAGNOSTIC ON button to activate the Output Check (Diagnostic Test) function of the AMR Diagnostic Test application. See INPUT CHECK/ OUTPUT CHECK (DIAGNOSTIC TEST). T380AMR 9021011 (09-2022)
Page 59: Diagnostic Tools
Erasable Programmable Read-Only Memory) Checksum are listed. Conﬁ rm these three numbers to ensure the latest version of the ﬁ rmware is installed on the machine. Contact the Tennant Customer Service Department for the latest controller ﬁ rmware version, Firmware Rev, and EEPROM.
Page 60: Output Information/Current And Volts
In the above example the error code of 0X31 shows there is a brush adjustment time out error. NOTE: The letters FWD in the TRACT DIRECT cell indicate the machine is in the forward direction for the testing being conducted. T380AMR 9021011 (09-2022)
Page 61 Open or Short fault condition with that system and additional troubleshooting is required. NOTE: Since the squeegee is part of the scrub head assembly on the T380AMR, there is no squeegee actuator. Disregard the SQU ACT CURRENT measures in Current And Volts information and the SQU ACT RUNNING, SQU ACT OPEN, and SQU ACT SHORT measures in Output Information.
Page 62: Machine System Ranges
Water Vacuum Current Amps Pickup Vacuum Voltage Volts Horn Voltage (Active) Volts Vehicle State 0x20 Error Value (See FAULTS AND ERRORS for all error 0x00 No Errors codes) *These Scrub Motor Current numbers are for reference only. T380AMR 9021011 (09-2022)
Page 63: Input Check/Output Check (Diagnostic Test)
The indicator is red when the brake pedal is pressed. seat switch recognizes there is an operator sitting in the operator seat. The indicator is red to indicate there is no operator in the operator seat. T380AMR 9021011 (09-2022)
Page 64 Check the Output Information column to conﬁ rm the tests are completed. If all cells in the Output Information column are 0 (zero), then no tests are active. T380AMR 9021011 (09-2022)
Page 65 The reverse alarm will continue to sound until the RVS Alarm Off button is pressed. Press the ECH2O On button to test the ec-H2O system. The ec-H2O system will continue to function until the ECH2O Off button is pressed. T380AMR 9021011 (09-2022)
Page 66: Dashboard Check
ONE KEY SW: When the 1-Step button is activated the indicator will be green. NOTE: Since the squeegee is part of the scrub head assembly on the T380AMR, there is no dedicated squeegee switch/actuator. Disregard the SQUEEGEE SW Dashboard Check.
Page 67: Fault Codes
1. Battery voltage is less than 18V. 1. Charge batteries. (All Functions Off) 2. Controller hardware fault. 2. Power cycle machine. 3. Contact Tennant Customer Service Department. 0x17 E-Stop Active 1. An E-Stop button is engaged 1. Disengage the E-Stop button(s)
Page 68 1. Brush motor short circuit. 1. Power cycle machine. Protection 2. Troubleshoot scrub motor circuit. 0x59 Traction Left Drain Fault 1. Controller hardware fault. 1. Contact Tennant Customer Service Department. 0x5B Traction Right Drain 1. Controller hardware fault. 1. Contact Tennant Customer Service Fault Department.
Page 69 0x76 Precharge Failure 1. Wiring problem. 1. Power cycle machine. (Others) 2. Controller hardware fault. 2. Contact Tennant Customer Service Department. 0x77 Brush Motor Stalled 1. Brush motor stalled. 1. Power cycle machine. 2. Parameter ”Brush Current Limit” set too low.
Page 70: Ec-H2O Nanoclean Icon Faults
Refer to ec-H2O NanoClean blink Electrode Fault allowed operating condition. Troubleshooting Guide. Fast 0x0726 ec-H2O Cell 1. Shorted load condition Refer to ec-H2O NanoClean blink Short Warning 2. Higher current draw than Troubleshooting Guide hardware design limit. T380AMR 9021011 (09-2022)
Page 71 ﬂ ashing blue light on ec-H2O module. Red- 0x0707 ec-H2O Water 1. ec-H2O water cartridge has 1. Replace ec-H2O water conditioning Green/ Conditioning expired due to either gallons of cartridge. Red-Blue Cartridge Expired usage or 2 years of use. Warning T380AMR 9021011 (09-2022)
Page 72: Off-Board Battery Charging On
64/YEL 64C/YEL J6-5 J6-3 Vehicle Interface Board By-Pass Switch 1D/RED 79/WHT 81/PNK 13B/BLK 105J/GRN SHIELD BRAIN Control Module Static Ground Strap 13R/BLK 68C/GRY 2C/BRN 68/GRY 13S/BLK 68D/GRY Battery Positive + Battery Negative - (MAM) Motor Amplifier Module T380AMR 9021011 (09-2022)
Page 73: Batteries Fail To Charge/Reduced Run Time (Off-Board Charger)
(Lead-Acid) • Are all battery cells within 0.050 (50 points) speciﬁ c gravity of each other? Terms: AC = Alternating Current Speciﬁ c Gravity = Relative density of a substance compared to water (1.000 speciﬁ c gravity) T380AMR 9021011 (09-2022)
Page 74: Power Up On
(MAM) Motor Amplifier Module Fuse 13W/BLK 2B/BRN 54/YEL 54A/YEL J2-11 54B/YEL J12-5 13X/BLK Battery Positive + J2-12 54C/YEL Mode Switch J12-6 13Y/BLK Battery Negative - J2-10 Legacy Config Input Detect J12-7 49/WHT EC-H20 Module J12-9 Pressure Switch T380AMR 9021011 (09-2022)
Page 75: Machine Power Operational Matrix
• Move the AMR Bypass Switch to “O” (OFF) position Brain Control replace necessary • Test voltage applied to power-up subsystem as Module lower components shown on electrical schematic harness • Are electrical circuit operating as shown on electrical schematic? Terms: VDC = DC Voltage T380AMR 9021011 (09-2022)
Page 76: Propel Subsystem
Battery Positive + J10-6 Directional Vehicle Interface Battery Negative - 99/WHT Rev-5V Switch Board J10-7 NOTE: M1 contactor de-energizes (shorting the drive motor) to quickly stop the machine when E-Stop(s) are engaged or while machine is running autonomously. T380AMR 9021011 (09-2022)
Page 77: Propel Subsystem Operational Matrix
ﬂ oor controller components • Key ON • Enable propel • Test voltage applied to propel subsystem as shown on electrical schematic • Are electrical circuits operating as shown on electrical schematic? Terms: VDC = DC Voltage T380AMR 9021011 (09-2022)
Page 78: Scrub Motor On
Brush Motor (Right) 8/GRY Tank-Conn Full Brush - 13G/BLK 28/GRY 28/GRY Recovery Full P3-1 13H/BLK 29/WHT Solution Low P3-2 13K/BLK CAN GND P4-1 CAN+A/YEL CANH P4-2 CAN-A/GRN CANL Battery Positive + P4-3 Battery Negative - Vehicle Controller T380AMR 9021011 (09-2022)
Page 79: Scrub Motor Operational Matrix
Identify voltage drop location and repair or • Enable scrub motor replace necessary • Test voltage applied to scrub motor subsystem as components shown on electrical schematic • Are electrical circuits operating as shown on electrical schematic? T380AMR 9021011 (09-2022)
Page 80: Scrub Head Lift
Deck Actuator B P2-10 P2-10 33/ORA 13H/BLK Deck Pos SW1 29/WHT Solution Low P2-6 P3-2 34/YEL Deck Pos SW2 P2-13 Deck Actuator P4-1 CAN+/YEL CANH P4-2 CAN-/GRN CANL P4-3 Vehicle Controller Battery Positive + Battery Negative - T380AMR 9021011 (09-2022)
Page 81: Scrub Head Actuator Operational Matrix
Repeat STEP 1 Identify voltage drop location and repair or • Enable scrub motor replace necessary • Test voltage applied to actuator subsystem as shown components on electrical schematic • Are electrical circuits operating as shown on electrical schematic? T380AMR 9021011 (09-2022)
Page 82: Vacuum Fan On
Vacuum + Tank-Conn Full 13G/BLK 28/GRY 28/GRY 105F/GRN Recovery Full P3-1 12/BRN Vacuum - Static Ground Strap 13H/BLK 29/WHT Solution Low P3-2 P4-1 CAN+/YEL CANH Battery Positive + P4-2 CAN-/GRN Battery Negative - CANL Vehicle Controller P4-3 T380AMR 9021011 (09-2022)
Page 83: Vacuum Fan Operational Matrix
Identify voltage drop location and repair • Enable vacuum fan or replace necessary • Test voltage applied to scrub motor subsystem as components shown on electrical schematic • Are electrical circuits operating as shown on electrical schematic? T380AMR 9021011 (09-2022)
Page 84: Solution Control On (Conventional)
Water Solenoid [+] P2-8 60A/TAN Water Tank-Conn Full Solenoid 13G/BLK 28/GRY 28/GRY Recovery Full 16A/BLU P3-1 16/BLU Aux_2_Out P2-9 13H/BLK 29/WHT Solution Low P3-2 P4-1 CAN+/YEL CANH P4-2 CAN-/GRN CANL Battery Positive + P4-3 Vehicle Controller Battery Negative - T380AMR 9021011 (09-2022)
Page 85: Solution Control Operational Matrix
Identify voltage drop location and repair • Enable solution control (conventional) or replace necessary • Test voltage applied to solution control (conventional) components subsystem as shown on electrical schematic • Are electrical circuits operating as shown on electrical schematic? T380AMR 9021011 (09-2022)
Page 86: Solution Control On (Ec-H2O) (Option)
54F/YEL J12-9 ec-H20 Pressure Switch Pump 55B/GRN 55/GRN Pump Output J12-8 56/BLU WCM Pump+ 45/GRN GRN+ J12-13 CAN+/LED GRN J12-2 ec-H20 41/PNK RED+ CAN-/LED RED 57/PUR J12-3 Pump WCM Pump- 42/BRN J12-14 LED RETURN EC-H20 Module J12-1 T380AMR 9021011 (09-2022)
Page 87: Solution Control (Ec-H2O) Operational Matrix (Optional)
Identify voltage drop location and repair • Enable solution control (ec-H2O) or replace necessary • Test voltage applied to solution control (ec-H2O) components subsystem as shown on electrical schematic • Are electrical circuits operating as shown on electrical schematic? T380AMR 9021011 (09-2022)
Page 88: Turn Signals
Rear Left 70B/TAN 70/TAN Turn Signal L- 70A/TAN 71A/PNK 71/PNK Turn Signal R+ 71B/PNK Turn Signal Turn Signal Front Right Rear Right 72B/BRN 72/BRN Turn Signal R- 72A/BRN Battery Positive + BRAIN Control Module Battery Negative - T380AMR 9021011 (09-2022)
Page 89: Turn Signals Failed To Function
• Disconnect BCM (2-pin connector for LH turn signal). Proceed to STEP 2 • Key ON Check continuity Identify voltage drop location and repair • Enable RH turn signal or replace necessary • Disconnect BCM (2-pin connector for RH turn signal). components T380AMR 9021011 (09-2022)
Page 90: Start/Pause Switch
AMR By-Pass Switch 105J/GRN SHIELD 73/ORA 73/ORA 3.3V 74/YEL 74/YEL Start Pause BTN Switch, Push, Mom, Blue 75/GRN 75/GRN Start Pause LED+ 76/BLU 76/BLU Start Pause LED- Lamp Battery Positive + Battery Negative - BRAIN Control Module T380AMR 9021011 (09-2022)
Page 91: Start/Pause Switch Failed To Operate
• Remove front shroud or replace necessary • Locate BCM (4-pin connector) that contains both the components start/pause LED and the start/pause switch signal. • Disconnect one spade terminal at switch-side to remove the led from the circuit. T380AMR 9021011 (09-2022)
Page 92: Steering Subsystem
TROUBLESHOOTING STEERING SUBSYSTEM 13R/BLK 68C/GRY 68/GRY 13Q/BLK BusBar 3 13S/BLK 68D/GRY (MAM) Motor Amplifier Module 206/BLU 207/PUR Motor 208/GRY 204/YEL 202/BRN 201/RED Encoder Battery Positive + 203/ORA Battery Negative - 205/GRN Steering Motor T380AMR 9021011 (09-2022)
Page 93: Steering Matrix (Optional)
• Firmly press circuit breaker #4 to reset • Key ON Identify voltage drop location and repair • Test voltage applied to steering subsystem as shown or replace necessary on electrical schematic components • Are electrical circuit operating as shown on electrical schematic? T380AMR 9021011 (09-2022)
Page 94: Can (Controller Area Network) System
J5-6 CANL_RETURN CAN-_BCM/WHT/GRN J5-5 CANH_THRU CAN+_VIB/WHT/GRN J5-7 CANL_THRU CAN-_VIB/GRN J5-8 Vehicle Interface Board 13L/BLK KEY_ON J6-3 CANH_IN CAN+_VIB/WHT/GRN PUP-57 CAN-_VIB/GRN CANL_IN PUP-56 CANH_OUT CAN+_BCM/ORA Battery Positive + PUP-63 CANL_OUY CAN-_BCM/WHT/GRN Battery Negative - PUP-62 BRAIN Control Module T380AMR 9021011 (09-2022)
Page 95: Can (Controller Area Network) Open Network Issues/Troubleshooting
2. Locate a CAN node location on the machine. 3. Carefully push probes into the back of the connector containing the CAN wires. 4. Since the network remains connected in this node, resistance should measure approximately 61Ω. T380AMR 9021011 (09-2022)
Page 96: Service
5. Remove the hardware securing the prop arm to the recovery tank and lift the recovery tank open to the service position. 3. Remove the hardware for the service cable from the recovery tank.\ T380AMR 9021011 (09-2022)
Page 97 Place the end of the service cable into the interior of the electrical compartment. 10. Thread the hardware removed in the previous step back into the recovery tank. T380AMR 9021011 (09-2022)
Page 98: Covers/Shrouds/Support Bracket/Chassis
REMOVE/REINSTALL THE FRONT GUARD Right Guard Pivot Plate FRONT Machine Frame Sensor Guard Left Guard Pivot Plate Plastic Flange Bushing Plastic Swivel Flange Caster Flange Bushing Bushings (Qty. 2) Front Guard Swivel Caster Front Guard Bumper Bristles T380AMR 9021011 (09-2022)
Page 99 4. Remove all hardware (hex screws/ﬂ at washers/ bushings) securing the support bracket to the mounting bracket. 5. Pull the support bracket assembly from under the machine. T380AMR 9021011 (09-2022)
Page 100: Front Covers Group
SERVICE FRONT COVERS GROUP Instrument Shroud Front Shroud Controller Access Cover Column Access Panel Steering Column Control Bezel FRONT Bezel Mounting Bracket Sensor Guard T380AMR 9021011 (09-2022)
Page 101: Remove The Front Cover From The Machine
4. Remove the hardware securing the control bezel to the front of the instrument shroud. 4. Remove the front shroud from the machine. 5. Reinstall the front shroud onto the machine is reverse order of disassembly. T380AMR 9021011 (09-2022)
Page 102: Remove The Column Access Panel From The Machine
6. Remove the control bezel from the machine. 3. Reinstall the column access panel in reverse order of disassembly. 7. Reinstall the control bezel onto the machine in reverse order of disassembly. T380AMR 9021011 (09-2022)
Page 103: Main Frame Group
SERVICE MAIN FRAME GROUP Vinyl Solid Tire Assembly Plastic Trim Edge Molding Chain Retaining Ring Static Strap 12-48 VDC Horn Rubber Grommets (Qty. 2) Retaining Ring Solid Tire Vinyl Assembly Machine Frame Hose Assembly (Recovery) T380AMR 9021011 (09-2022)
Page 104: Controls/Sensors/Cameras
Right Bezel Telemetry Controller 2D Camera Controller Marker Light Camera Mounting 2D Camera Plate Marker Light Left Bezel Right Side Antenna 3D Camera Left Side 3D Camera Camera 2D Camera FRONT Mounting Plate Antenna Mounting Angle Antenna Bracket T380AMR 9021011 (09-2022)
Page 105: Remove/Reinstall/Replace The Touchscreen
9. If cable/wire connections were disconnected from the removed touchscreen, connect cable/wire connections to the touchscreen. 10. Reinstall the touchscreen/install the new touchscreen onto the steering shroud. 11. Connect the touchscreen cable to the Brain Control Module. T380AMR 9021011 (09-2022)
Page 106: Remove/Reinstall/Replace The Control Panel
9. Reinstall the control panel onto the steering the static ground strap to the machine chassis. shroud. 3. Remove the hardware securing the control panel to 10. Contact Tennant Customer Service Department for the machine. instructions for returning components for inspection and tracking.
Page 107: Remove/Reinstall/Replace The Key Switch, Directional Switch, Ec-H2O Light, And E-Stop (Emergency Stop) Button
Lock Ring Direction Switch 7. Connect the main wire harness to the marker Safety Harness light(s). Shutoff Switch 8. Reinstall the control panel and/or touchscreen onto Switch Lock Ring the shroud. Key Switch T380AMR 9021011 (09-2022)
Page 108: Remove/Reinstall/Replace The Antenna
5. Disconnect the antenna cable from the telemetry controller. 12. Reinstall components removed to access the antenna in reverse order of disassembly. 13. Contact Tennant Customer Service Department for instructions for returning components for inspection and tracking. NOTE: Do Not discard AMR components replaced in this procedure.
Page 109: Remove/Reinstall/Replace The Telemetry Controller
11. Reinstall components removed to access the telemetry controller in reverse order of disassembly. 12. Contact Tennant Customer Service Department for instructions for returning components for inspection and tracking. NOTE: Do Not discard AMR components replaced in this procedure. All AMR components must be returned for inspection and tracking purposes.
Page 110: Remove/Reinstall/Replace The Membrane Controller
10. Install the circuit board cover/membrane controller onto the control panel. 11. Connect the wire harness to the membrane controller. 12. Reinstall components removed to access the membrane controller in reverse order of disassembly. Telemetry controller T380AMR 9021011 (09-2022)
Page 111: Remove/Reinstall/Replace The Side 2D Cameras
NOTE: To avoid damaging electronic components, 11. Contact Tennant Customer Service Department for a static ground strap must be worn at all times while instructions for returning components for inspection handling electrical components.
Page 112: Remove/Reinstall/Replace The Side 3D Cameras
See REMOVE/REINSTALL/REPLACE THE TOUCHSCREEN or CONTROL PANEL. 4. Remove the side cover from the steering shroud. 7. Remove the side 3D camera assembly from the machine. T380AMR 9021011 (09-2022)
Page 113 12. Repeat procedure if replacing the side 3D camera located on the other side of the steering shroud. 13. Contact Tennant Customer Service Department for instructions for returning components for inspection and tracking. NOTE: Do Not discard AMR components replaced in this procedure.
Page 114: Front Cameras And Sensors
Vibration Isolators (Qty. 3) Camera Bracket Front 3D Camera Assembly Vibration Fan Guard Isolators (Qty. 3) Camera Cooling Fan Lower Sensor Bracket Controller Bracket Controller Springs (Qty. 3) Steering Column Lower Sensor Plate Range Sensor (Lower LIDAR) T380AMR 9021011 (09-2022)
Page 115: Remove/Reinstall/Replace The Front Upper Range Sensor (Lidar)
12. Reinstall the center bezel and front shroud onto the MACHINE. machine in reverse order of disassembly. 4. Remove the control bezel from the machine. See 13. Contact Tennant Customer Service Department for REMOVE THE CONTROL BEZEL FROM THE instructions for returning components for inspection MACHINE.
Page 116: Remove/Reinstall/Replace The Front Lower Range Sensor (Lidar)
LIDAR. 9. Reinstall the front cover onto the machine in reverse order of disassembly. 10. Contact Tennant Customer Service Department for instructions for returning components for inspection and tracking. NOTE: Do Not discard AMR components replaced in this procedure.
Page 117: Remove/Reinstall/Replace The Front 3D Camera
10. Reinstall the center bezel and front shroud onto the MACHINE. machine in reverse order of disassembly. 4. Remove the control bezel from the machine. See 11. Contact Tennant Customer Service Department for REMOVE THE CONTROL BEZEL FROM THE instructions for returning components for inspection MACHINE.
Page 118: Remove/Reinstall/Replace The Front 2D Camera
2D camera in reverse order of disassembly. NOTE: Do not scratch or damage the 2D camera lens. 10. Contact Tennant Customer Service Department for Robotic machine performance could be adversely instructions for returning components for inspection affected if the camera lens is scratched or damaged.
Page 119: Remove/Reinstall/Replace The Brain Controller
9. Reinstall components removed to access the Brain controller in reverse order of disassembly. FOR SAFETY: When servicing machine, disconnect battery connection and charger cord before 10. Contact Tennant Customer Service Department for working on machine. instructions for returning components for inspection and tracking.
Page 120: Remove/Reinstall/Replace The Operator Seat/Operator Seat Switch
Harness working on machine. 4. Cut the cable tie securing the seat switch harness to the main wire harness. Tank Assist Bracket 5. Disconnect the seat switch harness from the main wire harness. T380AMR 9021011 (09-2022)
Page 121 18. Remove the hardware securing the service cable to the recovery tank and reinstall the removed hardware into the recovery tank. Place the end of the service cable into the interior of the electrical compartment. T380AMR 9021011 (09-2022)
Page 122: Recovery Tank Cover Controls/Components
Blue Push Switch Rear Control Plate Light Markers (Qty. 2) Recovery Cover Gasket Blue Push Switch E-Stop Safety Shutoff Lock Ring Switch Recovery Tank Cover Bulb Dual Seal Leaf Hinges (Qty. 2) Cover Hinges (Qty. 2) Recovery Tank FRONT T380AMR 9021011 (09-2022)
Page 123: Remove/Reinstall/Replace The Rear Start/Pause Button
4. Carefully pull the rear control plate from the recovery tank cover. Do Not break or damage wire/ cable connections when pulling the rear control plate from the recovery tank cover. T380AMR 9021011 (09-2022)
Page 124 11. Connect the harness connections to the start/ pause button assembly. 12. Install the start/pause button assembly onto the rear control panel. 8. Remove the button from the rear control panel. T380AMR 9021011 (09-2022)
Page 125: Remove/Reinstall/Replace The Rear E-Stop (Emergency Stop) Button
4. Carefully pull the rear control plate from the recovery tank cover. Do Not break or damage wire/ cable connections when pulling the rear control plate from the recovery tank cover. T380AMR 9021011 (09-2022)
Page 126: Remove/Reinstall/Replace The Rear Marker Lights
3. Remove the hardware securing the rear control light(s) into the recovery tank cover. plate to the recovery tank cover. 8. Connect the main wire harness to the marker light(s). 9. Install the recovery tank cover onto the fan mounting plate. T380AMR 9021011 (09-2022)
Page 127: Remove/Reinstall/Replace The Strobe Light
Do Not break or damage wire/ cable connections when pulling the rear control plate from the recovery tank cover. 7. Reinstall the strobe light/install the new strobe light onto the rear control plate in reverse order of disassembly. T380AMR 9021011 (09-2022)
Page 128: Pedals Group
SERVICE PEDALS GROUP Foot pedal Extension spring Foot pedal FRONT (0.35od 0.05wir 02.8l) Extension spring (0.50od 0.07wir 03.0l) Position sensor Brake accelerator pedal assembly Steering column T380AMR 9021011 (09-2022)
Page 129 SERVICE T380AMR 9021011 (09-2022)
Page 130: Steering
Steering Column Adapter Plate Steering Position Sensor Rubber Grommet Motor Steering Plate Motor Plate 25mm Service Cable Steering Motor Gearbox Control 50mm Amplifier Steering 1 in. Motor Assembly Steering Shaft U Joint Machine Frame Propel Connector FRONT Bracket T380AMR 9021011 (09-2022)
Page 131: Remove/Reinstall/Replace The Steering Motor/Steering Gear Box/Steering Position Sensor
Do Not loosen the hardware securing the steering gear box to the steering motor plate. 5. Loosen the upper set screws securing the steering shaft into the u-joint. 8. If replacing/removing the steering position sensor: Disconnect the wire harness from the steering position sensor. T380AMR 9021011 (09-2022)
Page 132 Do Not remove the hardware securing the steering motor plates to the steering column. 10. If replacing/removing the steering motor/ steering gear box: Disconnect the steering motor cable from the motor control ampliﬁ er and wire harness. T380AMR 9021011 (09-2022)
Page 133 22. Contact Tennant Customer Service Department for 13. If replacing the steering motor assembly or instructions for returning components for inspection steering gearbox: Disassemble the steering motor and tracking.
Page 134: Remove/Reinstall/Replace The Steering Amplifier Module
8. Reassemble all items removed to access the steering ampliﬁ er module onto the machine in the reverse order of disassembly. 9. Contact Tennant Customer Service Department for instructions for returning components for inspection and tracking. NOTE: Do Not discard AMR components replaced in this procedure.
Page 135 SERVICE T380AMR 9021011 (09-2022)
Page 136: Electrical
Stand-Off Diode Busbar Stand-Offs (Qty. 2) Busbar Snap PVC Trim Switch Molding Switch Guard Plate Electric Panel Battery Charger Bracket Cable Squeegee Rest Pad Contactor Mounting Bracket Machine Charger Cable Charger Mounting Bracket 24 VDC, 100-Amp Contactor T380AMR 9021011 (09-2022)
Page 137: Remove/Reinstall/Replace The Contactor
8. Remove both bus bars from the 100-A 24 VDC working on machine. contactor and the corresponding panel insulator standoffs. 5. Disconnect the actuator cable secured to the contactor cover from the main wire harness. T380AMR 9021011 (09-2022)
Page 138 100-A 24 VDC contactor and panel insulator standoffs. 14. Connect the wire harness connections to the terminals located on the top of the 100-A 24 VDC contactor. 15. Install the contactor cover onto the actuator support. T380AMR 9021011 (09-2022)
Page 139: Remove/Reinstall/Replace The Charger Interlock Snap Switch
Machine Charging Cable Charger Mounting Bracket T380AMR 9021011 (09-2022)
Page 140: Remove/Reinstall/Replace The Kinetek Controller
Boots (Qty. 4) 10-Amp Circuit 4-Amp Circuit Breakers Breakers (Qty. 2) (Qty. 2) 5-277 Volt Hour Meter Charging Stop Breaker Cover Plate Steering Machine Column Controller Stand-Offs (Qty. 2) Electric Panel 125-Amp Busbar FRONT Machine Frame Controller Cover T380AMR 9021011 (09-2022)
Page 141 FOR SAFETY: When servicing machine, disconnect panel/machine controller. battery connection and charger cord before working on machine. 4. Disconnect the actuator cable secured to the contactor cover from the main wire harness. 7. Disconnect all wire harness connections from the Kinetek controller. T380AMR 9021011 (09-2022)
Page 142 14. Remove the hardware securing the service cable to the recovery tank and reinstall the removed hardware into the recovery tank. Place the end of the service cable into the interior of the electrical compartment. T380AMR 9021011 (09-2022)
Page 143 16. Start and test the machine to ensure the machine functions correctly. All machine functions should be fully operational when the corresponding buttons/ switches are activated. 17. Contact Tennant Customer Service Department for instructions for returning components for inspection and tracking. NOTE: Do Not discard AMR components replaced in this procedure.
Page 144: Battery Group
4 Gauge Cable 30 in. Red 4 Gauge Cable 8 in. Red 4 Gauge Cable 12 in. Nylon Sleeve Batteries 24 VDC, 100-Amp Battery Tray Contactor Electrical Panel Bracket 12 in. Clear PVC Hose FRONT Machine Frame T380AMR 9021011 (09-2022)
Page 145: Drive Wheel Group
SERVICE DRIVE WHEEL GROUP Machine Frame FRONT 1 in. Cord Bracket Drive Wheel (Qty. 2) Steering Control Assembly Brake Motor Harness 24VDC Drive Wheel Nylon Sleeve Strap Speed Sensor Cable T380AMR 9021011 (09-2022)
Page 146: Remove/Reinstall/Replace The Drive Wheel Assembly
NOTE: Use care when removing the drive wheel assembly from the machine. The drive wheel weighs approximately 140 lbs (64 kg). If necessary, seek help to remove the drive wheel assembly from the machine. T380AMR 9021011 (09-2022)
Page 147: Remove/Reinstall/Replace The Drive Motor Carbon Brushes
Positive (+) and Negative (-) connections and remove the carbon brushes from the drive motor assembly. 5. Inspect carbon brushes. Replace carbon brushes if they are stuck or are less than 10 mm (0.375 in.) in length. T380AMR 9021011 (09-2022)
Page 148: Remove/Reinstall/Replace The Parking Brake And Encoder
4. If jacking up machine to access encoder/brake assembly: Jack up the front end of the machine enough to access the parking brake and encoder. Place jack stands under the machine and lower the machine onto the jack stands. If jacking up machine. T380AMR 9021011 (09-2022)
Page 149 13. Remove the brake assembly from the drive wheel motor assembly. NOTE: Bushings may fall from the brake assembly when it is removed from the drive wheel motor assembly. Do not lose the bushings if they should fall loose during disassembly. T380AMR 9021011 (09-2022)
Page 150: Inspect The Brake Assembly Air Gap
THE PARKING BRAKE AND ENCODER. 3. Reinstall brake assembly and other components removed to check brake assembly air gap back onto the drive wheel assembly in reverse order of disassembly. See REMOVE/REINSTALL/ REPLACE THE PARKING BRAKE AND ENCODER. T380AMR 9021011 (09-2022)
Page 151 SERVICE T380AMR 9021011 (09-2022)
Page 152: Solution Systems
SERVICE SOLUTION SYSTEMS Gasket 24VDC 2 Stage Vacuum Fan Vibration Isolators (Qty. 3) Vacuum Fan Mount Recovery Tank Vented Vacuum Fan Inlet Cover T380AMR 9021011 (09-2022)
Page 153: Remove/Reinstall/Replace The Vacuum Fan
Place the end of the service cable into the interior of the electrical compartment. 14. Thread the hardware removed in the previous step back into the recovery tank. T380AMR 9021011 (09-2022)
Page 154: Remove/Inspect/Replace The Recovery Tank Vacuum Fan Carbon Brushes
2. Remove the gasket from the vacuum fan. 5. Loosen the carbon brush retainer mounting hardware. Gasket 24VDC 2 Stage Vacuum Fan Vibration Isolators 6. Remove the carbon brush from the vacuum fan motor. (Qty. 3) Vacuum Fan Mount Vented Vacuum Fan Inlet Cover T380AMR 9021011 (09-2022)
Page 155 9. Use compressed air to clean dust from inside the vacuum fan motor. Impeller housing 10. Reinstall the removed vacuum fan brushes/install Impeller the new vacuum fan brushes in reverse order of disassembly. Fan shell Impeller nut Washer T380AMR 9021011 (09-2022)
Page 156: Recovery Tank Group
Adhesive Float Tube Mounting Gasket Strainer Cable 14VDC Liquid Mounting Level Sensor Bracket Recovery Tank Tank Assist Bracket Sleeves (Qty. 2) Plunger Flange Shaft Bushings Tank Retaining (Qty. 2) Cable (For Service Use Only) Spring Tank Retaining Bracket T380AMR 9021011 (09-2022)
Page 157: Replacing The Recovery Tank
4. Disconnect the tank harness connections from the strobe light, both turn signals, the E-Stop button , and the rear start/pause button. 5. Remove the hardware securing the recovery tank cover to the recovery tank. T380AMR 9021011 (09-2022)
Page 158 17. Disconnect the recovery tank harness from the vacuum fan. 11. Disconnect the tank wire harness from the main wire harness. 18. Remove the vacuum fan from the recovery tank . 12. Remove the hardware securing the tank retaining cable from the recovery tank. T380AMR 9021011 (09-2022)
Page 159 22. Remove all remaining parts, components, and hardware from the recovery tank. 23. Assemble parts and components removed from the old recovery tank onto the new recovery tank and assemble/install the recovery tank onto the machine in reverse order of disassembly. T380AMR 9021011 (09-2022)
Page 160: Recovery Tank Hose Group
SERVICE RECOVERY TANK HOSE GROUP Drain Cap Assembly Recovery Tank Recovery Tank Drain Hose Assembly Hose Mounting Bracket Hose Adapter Tube Hose Adapter Gasket PVC Hose Connected To Squeegee Assembly T380AMR 9021011 (09-2022)
Page 161: Solution Tank Group
(Qty. 2) PVC Drain Hose Tank Cap Tank Retaining Cable (For Service Use Only) Tank Retaining Bracket Solution Tank Sleeve 14VDC Liquid Level Sensor Rear Shroud Clear PVC Hose Solution Tank Mounting Angle Tank Support Bracket Machine Frame T380AMR 9021011 (09-2022)
Page 162: Scrubbing Systems
Flange Bushing Flange Bushings (Qty. 2) Plastic Plastic Flange Flange Bushing Bushing Magnetic Flange Head Lift Bushings (Qty. 2) Plastic Flange Bushing Head Squeegee Mounting Rail Bracket Short Head Mounting Bracket Scrub Head Assembly Weighted Head Plate T380AMR 9021011 (09-2022)
Page 163: Remove/Reinstall/Replace The Scrub Head
Support machine with jack stands. 10. Disconnect all wire and cable connections from the scrub head/scrub brush motors/solenoid water valve. 11. Disconnect the solution supply hose from the scrub head. 12. Remove the scrub head from under the machine. T380AMR 9021011 (09-2022)
Page 164 Place the end of the service cable into the interior of the electrical compartment. 19. Thread the hardware removed in the previous step back into the recovery tank. T380AMR 9021011 (09-2022)
Page 165 SERVICE T380AMR 9021011 (09-2022)
Page 166: Remove/Reinstall/Replace The Scrub Head Motor
MOTOR 24 VDC Electric Motor Electric Harness Hose 25mm Square Key Scrub Head Housing Head Bristle Skirt Bumper Magnetic Drive Hub Plunger Magnetic Pad Button Hub Ring Weighted Head Plate Spring Pad/Pad Driver Long Step Pin FRONT T380AMR 9021011 (09-2022)
Page 167 7. Insert the key into the notch in the brush drive shaft and install the magnetic drive hub/magnetic hub ring onto the new scrub brush motor. 8. Reinstall the scrub head onto the machine in reverse order of disassembly. T380AMR 9021011 (09-2022)
Page 168: Removing/Installing The Scrub Head Motor Carbon Brushes
3. Remove the scrub head from the machine. Refer to REMOVE/INSTALL/REPLACE THE SCRUB HEAD ASSEMBLY. 4. Remove the cap from the scrub brush motor. 5. Remove the band from the scrub brush motor to access the scrub brush motor carbon brushes. T380AMR 9021011 (09-2022)
Page 169 9. Repeat procedure to remove remaining carbon 13. Reinstall the scrub head onto the machine. brushes from the scrub brush motor. REMOVE/INSTALL/REPLACE THE SCRUB HEAD ASSEMBLY. T380AMR 9021011 (09-2022)
Page 170: Removing/Replacing The Scrub Head Actuator
SERVICE REMOVING/REPLACING THE SCRUB HEAD ACTUATOR Actuator Mounting Bracket 24VDC Actuator Cotter Clevis Pin Spring Cotter Spring Plunger Tube Machine Frame Clevis Pin FRONT Cotter Pin Main Scrub Clevis Pin Head Assembly T380AMR 9021011 (09-2022)
Page 171 ACTUATOR TO FACTORY SETTING if the actuator is no longer in its factory adjusted setting. 7. Disconnect the battery cable from the machine. FOR SAFETY: When servicing machine, disconnect battery connection and charger cord before working on machine. T380AMR 9021011 (09-2022)
Page 172 (1.04 in)). See RESET THE SCRUB HEAD ACTUATOR TO FACTORY SETTING and proceed to following step after setting the actuator to the factory setting. 15. Connect the main wire harness to the new actuator. 16. Reconnect the battery cable to the machine. T380AMR 9021011 (09-2022)
Page 173: Reset The Scrub Head Actuator To Factory Setting
8. To reset the actuator to the factory setting, turn the actuator barrel by hand until the top of barrel is approximately 26.5 mm (1.04 in) from the bottom of the actuator housing. 26.5 mm (1.04 in) T380AMR 9021011 (09-2022)
Page 174: Adjusting The Squeegee Assembly
Support Bracket Squeegee Retainer Swivel Caster Springs (Qty. 4) Front Squeegee Blade FRONT *NOTE: IF squeegee coupling is touching squeegee frame after star knobs are loosened, pull squeegee coupling so it is no longer touching squeegee frame. T380AMR 9021011 (09-2022)
Page 175 The center of the pin should be 114.5 mm +/- 4 mm 9. Reinstall the squeegee assembly onto the (4.51 in. +/- 0.16 in.) from the ﬂ oor. squeegee carriage assembly. T380AMR 9021011 (09-2022)
Page 176: Options
Machine Bracket Frame 0.25 in. dia. Clear PVC Hose In-Line Filter TO SCRUB HEAD 0.50 in. dia. Hose Solenoid Mounting ec-H2O Pump Bracket Bracket 0.25 in. dia. PVC Hose 24VDC Water Solenoid Valve 24VDC Electric Solution Pump T380AMR 9021011 (09-2022)
Page 177: Remove/Reinstall/Replace The Ec-H2O Module (Option)
7. Disconnect the PVC hose connected to the ec-H2O module near where the hardware was removed in 16. Thread the hardware removed in the previous step the previous step from the ec-H2O module. back into the recovery tank. T380AMR 9021011 (09-2022)
Page 178: Remove/Reinstall/Replace The Ec-H2O Solution Pump (Option)
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, and remove key. 1. Completely drain the solution tank and the recovery tank. 2. Press the 1-Step button to completely lower the scrub head. T380AMR 9021011 (09-2022)
Page 179 Place the end of the service cable into the interior of the electrical compartment. 13. Thread the hardware removed in the previous step back into the recovery tank. T380AMR 9021011 (09-2022)
Page 180: Service The Ec-H2O Module (Option)
SERVICE SERVICE THE ec-H2O MODULE (OPTION) ec-H2O module electrical harness High Flow 5 Plate Electrode ec-H2O upper module housing ec-H2O Rocker direction switch label Molded hose 0.25 in. dia. clear PVC hose ec-H2O AMR replacement controller kit T380AMR 9021011 (09-2022)
Page 181 5. Further disassemble the ec-H2O module as necessary to access and replace parts. 6. Reassemble the ec-H2O module in the reverse order of disassembly. 7. Reinstall the ec-H2O module onto the machine. See REMOVING/INSTALLING THE ec-H2O MODULE (OPTION). T380AMR 9021011 (09-2022)
Page 182: Connect Hoses To Ptc (Push-To-Connect) Fittings
4. Pull on the ﬁ tting to ensure the hose connection is tubing must be free of score marks, burrs, or sharp secure. edges. 5. Test the ﬁ tting/hose connections for leaks prior to leaving the site. T380AMR 9021011 (09-2022)
Page 183: Disconnect Hoses From Ptc (Push-To-Connect) Fittings
ﬁ tting and pull the hose from the ﬁ tting. NOTE: Be sure there is no pressure in the system and the system is emptied of all solution before disconnecting hose(s) from the ﬁ tting. T380AMR 9021011 (09-2022)
Page 184: Lithium Batteries
(-). Ensure cables are all correctly torqued to the batteries. Torque red (+) connections to 22 Nm (16 ft. lbs.) Torque black (-) connections to 17 Nm (12.5 ft. lbs.) 3. Proceed to TROUBLESHOOT UI POWER ELECTRIC HARNESS (J7-8/J7-10) if issue persists. T380AMR 9021011 (09-2022)
Page 185: Check Lithium Battery Status/Fault Codes
3. Press power button for 1 second on each battery to appear as a fault on the UI (User Interface), and also see the battery status. Observe the indicator lights prevent the machine from being operated (ﬂ ashing on each battery. operator controls and indicators). T380AMR 9021011 (09-2022)
Page 186 (State of Charge) and recharge battery. 2. If fault persists, contact T.A.C. for further assistance. Cell Over Voltage-During 1. Replace battery. Charge Only (Secondary) Safety Under Voltage 1. Recharge battery. 2. If fault persists, contact T.A.C. for further assistance. T380AMR 9021011 (09-2022)
Page 187 1. Disconnect cables from battery. 2. Observe indicator lights for a fault. 3. If no fault, reconnect cables to battery. 4. If fault persists, replace battery. See REMOVE/REINSTALL/REPLACE LITHIUM BATTERIES. Permanent Fault 1. Replace battery. See REMOVE/ REINSTALL/REPLACE LITHIUM BATTERIES. T380AMR 9021011 (09-2022)
Page 188: Access Lithium Battery Service Screen
3. Turn the key switch ON. 4. Double click the Service Diagnostics desktop shortcut or ﬁ nd the software in All Programs to launch the software. 6. The lithium battery service screen opens. T380AMR 9021011 (09-2022)
Page 189 7. Observe the lithium battery operational status in the lithium battery status column. See LITHIUM BATTERY SYSTEM RANGES for lithium battery operational values/ranges. Proceed to LITHIUM BATTERY SYSTEM VALUES/ RANGES for battery status battery/battery system operating range information. T380AMR 9021011 (09-2022)
Page 190: Lithium Battery System Values/Ranges
See TROUBLESHOOT DIGITAL POT 5V ENABLE HARNESS (J3-1/J3-2 AND J10-5/J10-6) to further ELECTRIC HARNESS (J4-1/J4-4) to further troubleshoot issue if issue persists. troubleshoot if issue persists. See TROUBLESHOOT DIGITAL POT 5V ENABLE ELECTRIC HARNESS (J4-1/J4-4) to further troubleshoot if issue persists. T380AMR 9021011 (09-2022)
Page 191 UI (User Interface), and prevent the machine from being operated (ﬂ ashing operator controls and indicators). T380AMR 9021011 (09-2022)
Page 192: Troubleshoot Service Diagnostic Connection
USB cable. 8. Attempt again to connect to the machine/ access the lithium ion service screen. If there is still no connection to the machine/access the lithium battery service screen, proceed to TROUBLESHOOT LITHIUM BATTERY CONTROL BOARD. T380AMR 9021011 (09-2022)
Page 193: Troubleshoot Lithium Battery Control Board
ﬂ ashing, troubleshoot the lithium battery CAN (Controller Area Network) communication. See TROUBLESHOOT UI TO BMS ELECTRICAL HARNESS (J3-1/J3-2 AND J10-5/J10-6) and TROUBLESHOOT DIGITAL POT 5V ENABLE ELECTRIC HARNESS (J4-1/J4-4). 2. Contact T.A.C. for further troubleshooting guidance if issue persists. T380AMR 9021011 (09-2022)
Page 194: Inspect/Troubleshoot Lithium Battery Pack
See REMOVE/ REINSTALL/REPLACE LITHIUM BATTERIES. 3. Disconnect the termination resistor from the battery pack. NOTE: Note locations of terminal notches when checking continuity between lithium battery terminal pins. The terminals are not oriented the same. T380AMR 9021011 (09-2022)
Page 195 Resistance between terminals 1 and 2 and terminals 6 and 7 should be 120Ω. Replace the resistor plug if no resistance/excessive resistance at either resistor. 13. If plug resistor is good, reassembly the resistor plug connector onto the resistor plug. T380AMR 9021011 (09-2022)
Page 196 ENABLE ELECTRIC HARNESS (J4-1/J4-4) for further troubleshooting if issue persists. 16. Reinstall the lithium battery CAN communication cables/install new lithium battery CAN communication cables onto the battery pack. Torque lithium battery CAN communication cable connections to 0.6 Nm (0.44 ft. lbs.). T380AMR 9021011 (09-2022)
Page 197 SERVICE T380AMR 9021011 (09-2022)
Page 198: Troubleshoot Ui Power Electric Harness (J7-8/J7-10)
If short To B- Damage to wiring on power on. Possible damage to board* If short to chassis Short to chassis may cause non-obvious issues If short to B+ B+ is the connection *Notes High probability of irreparable board damage T380AMR 9021011 (09-2022)
Page 199 SERVICE T380AMR 9021011 (09-2022)
Page 200: Troubleshoot Leg Electric Harness (J5-1/J5-2)
High probability of irreparable board damage 5. If the cable/connections are good and issue persists, replace the lithium battery control board. See REPLACE LITHIUM BATTERY CONTROL BOARD. 6. Contact T.A.C. for further troubleshooting guidance if issue persists. T380AMR 9021011 (09-2022)
Page 201 SERVICE T380AMR 9021011 (09-2022)
Page 202: Troubleshoot Ui To Bms Electrical Harness (J3-1/J3-2 And J10-5/J10-6)
Battery will not go into sleep mode If short to chassis Short to chassis may cause non-obvious issues If short to B+ Damage to wiring when waking up battery. Possible damage to board* *Notes High probability of irreparable board damage T380AMR 9021011 (09-2022)
Page 203 Torque the UI to BMS electrical harness connection to 0.6 Nm (0.44 ft. lbs.). 9. Contact T.A.C. for further troubleshooting guidance if issue persists. 4. Remove the resister from the UI to BMS electrical harness. T380AMR 9021011 (09-2022)
Page 204 SERVICE T380AMR 9021011 (09-2022)
Page 205 SERVICE T380AMR 9021011 (09-2022)
Page 206 SERVICE T380AMR 9021011 (09-2022)
Page 207 SERVICE T380AMR 9021011 (09-2022)
Page 208: Troubleshoot Digital Pot 5V Enable Electric Harness (J4-1/J4-4)
If short to chassis Board reports to system battery pack has a problem If short to B+ Board reports to system battery pack has a problem* *Notes High probability of irreparable board damage T380AMR 9021011 (09-2022)
Page 209 SERVICE T380AMR 9021011 (09-2022)
Page 210: Lithium Battery Hard Reset
The machine is now ready for operation. 4. Disconnect the battery cable from the machine. 5. Connect the battery charger to the battery cable disconnected from the machine in the previous step. T380AMR 9021011 (09-2022)
Page 211: Service
None of the charge indicator lights should be illuminated on this battery. NOTE: All lithium batteries must be turned off prior to removing the batteries from the machine. 4. Disconnect the battery cable from the machine. T380AMR 9021011 (09-2022)
Page 212 SERVICE 24VDC lithium batteries (Qty. 2) Digital Pot 5V Enable electric harness Circuit Kinetek board Board controller mounting plate Board Main contactor mounting assembly bracket cable Battery Electrical tray plate panel FRONT Battery compartment T380AMR 9021011 (09-2022)
Page 213 18.0 in. red battery cable 18.0 in. black battery cable Torque all red (+) cable connections to 22 Nm (16 ft. lbs.) Torque all black (-) cable connections 24VDC lithium batteries to 17 Nm (12.5 ft. lbs.) (Qty. 2) T380AMR 9021011 (09-2022)
Page 214 (16 ft. lbs.). Torque all black (-) connections to 17 Nm (12.5 ft. lbs.). Torque lithium battery CAN communication cable, resistor plug, and UI to BMS electrical harness connections to 0.6 Nm (0.44 ft. lbs.). T380AMR 9021011 (09-2022)
Page 215: Replace Lithium Battery Circuit Board
NOTE: Do Not empty the solution tank before troubleshooting the lithium batteries/performing lithium battery maintenance. The solution tank must be full so the machine does not tip over. 3. Set the recovery tank into the service position. T380AMR 9021011 (09-2022)
Page 216 USB cable installed on the lithium battery control board. 10. Disconnect all harness/wire connections from the control board. 11. Remove the control board from the board mounting plate. T380AMR 9021011 (09-2022)
Page 217 A Service Diagnostic window with text “A new board has been installed in this machine and must be properly conﬁ gured. This wizard will guide you through the process.” appears on the screen. T380AMR 9021011 (09-2022)
Page 218 32. Use the Service Diagnostics tool to access the lithium battery screen. 30. A text box with “Press OK, then Key cycle machine.” appears. Select the OK button and then key cycle the machine to complete the ﬁ rmware update. T380AMR 9021011 (09-2022)
Page 219 The “Number of Batteries” and “Number of Active Batteries” should be two (2.00), and the number of “Number of Faulted Batteries” should be zero (0.00). See LITHIUM BATTERY SYSTEM VALUES/ RANGES for battery status battery/battery system operating range information. T380AMR 9021011 (09-2022)

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