Tennant T300 Service Information Manual
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Tennant T300 Service Information Manual

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

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Do you have a question about the T300 and is the answer not in the manual?

Questions and answers

Arthur Parker
March 22, 2025

Our cleaner doesn't vacuum up the water leaving a puddle.

0
1 comments:
Mr. Anderson
March 22, 2025

The Tennant T300 cleaner may not vacuum up water properly, leaving a puddle, due to several possible reasons:

1. Vacuum Squeegee Not Lowered – If the vacuum squeegee is not in the correct position, it will not effectively suck up water.
2. Blocked or Dirty Debris Tube – Debris may be clogging the tube, preventing proper suction.
3. Pinched or Closed Tube – If the tube is pinched or not properly open, water may not be drawn in.
4. Excessive Travel Speed – Moving too fast can reduce cleaning effectiveness and leave water behind.
5. Full or Dirty Debris Tray – If the debris tray is full, it may block proper suction.
6. Improper Maintenance – The machine should be cleaned and checked after each use to ensure all components function correctly.

Checking and addressing these issues can help restore proper vacuuming performance.

This answer is automatically generated

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Summary of Contents for Tennant T300

  • Page 1 T300e Automatic Floor Scrubber English EN Service Information Manual ® Hygenic Fully cleanable Recovery Tank ® TennantTrue Parts ® IRIS a Tennant Technology 9014510 For the latest Parts Manuals and other Rev. 01 (3-2017) language Operator Manuals, visit: *9014510* www.tennantco.com/manuals...

  • Page 2: Introduction

    ATTENTION: Do not remove machine from pallet party licenses. More information can be found at: www.tennantco. com/opensource without using ramp, machine damage may occur. Specifications and parts are subject to change without notice. Original Instructions. Copyright © 2015- 2017 Tennant Company. All rights reserved.

  • Page 3: Table Of Contents

    T300e Failed To Propel ......69 Metric ............23 T300 Scrub Motor On ......70 General Machine Dimensions/ T300 Scrub Motor Failed To Turn On ..71 Capacities/Performance ......24 T300e Scrub Motor On ......72 General Machine Dimensions/ T300e Scrub Motor Failed To Turn On ...73 Capacities/Performance ......25...
  • Page 4 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 T300, T300e Service Information (3-2017)
  • Page 5 CONTENTS T300, T300e Service Information (3-2017)

  • Page 6: Safety Precautions

    Read manual before operating machine. With pads or accessories not supplied or approved by Tennant. The use of other Do not use or pick up flammable materials. pads may impair safety. Do not use near flammable liquids, vapors or In areas with possible falling objects.
  • Page 7 Use a hoist or adequate assistance when lifting batteries. Battery installation must be done by trained personnel. Wear personal protection equipment as needed and where recommended in this manual. For Safety: wear protective gloves. For Safety: wear eye protection. T300, T300e Service Information (3-2017)
  • Page 8 WARNING LABEL - Electrical hazard. Magnetic Field Hazard. Magnetic Disconnect battery pad driver/brush can be harmful cables before servicing to pacemaker wearers or medical machine. implants. Located on circuit breaker Located on Insta-Click magnetic panel. pad driver/brush. T300, T300e Service Information (3-2017)
  • Page 9 Hazard. Disconnect battery to pacemaker wearers or medical Located on cylindrical cables before servicing implants. scrub head model. machine. Located on Insta-Click magnetic pad Located on circuit board panel. driver/brush. T300, T300e Service Information (3-2017)

  • Page 10: General Information

    Interface Module w/ mini-USB Programming Port Internal Bail Switch M Forward/ Reverse Propel Switch* N Scrub Head Linkage (Configurable) O Transaxle Assembly* Rear Squeegee Lift Contact Switch Q I-Drive Propel Control Module* * Optional Equipment T300, T300e Service Information (3-2017)

  • Page 11: Electrical Schematic Symbols

    Sweep ON N.C. Relay Contacts Sensor Vac & Swe (Variable Resistor) Notes N.O. Relay Contacts Momenary Switch N.O. Assembly Contact Switch N.C. Horn or Alarm AC Plug Operational Solenoid Valve Capacitor Light Electro- Magnetic Brake T300, T300e Service Information (3-2017)

  • Page 12: Electrical Schematic T300 (Drive Model) - 1 Of 3

    GENERAL INFORMATION ELECTRICAL SCHEMATIC T300 (DRIVE MODEL) - 1 of 3 W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY 12 VDC 12 VDC (2) 12VDC BATTERIES 1/RED 13/BLK OFF BOARD CHARGER CABLE ASSY P1-B- 13/BLK 13/BLK CABLE, CHARGER PCB ASSEMBLY INTERFACE MODULE...
  • Page 13 GENERAL INFORMATION ELECTRICAL SCHEMATIC T300 (DRIVE MODEL) - 2 of 3 J3-4 NOT_USED1 FUSE-1 INCLUDED IN CABLE ASSEMBLY 1/RED BLUE J3-3 SHIELD1 J3-2 CAN-1 J3-1 24/YEL J10-1 CAN+1 HALF_0A MTR-2 INCLUDED IN CABLE ASSEMBLY 13/BLK 24/YEL J10-2 HALF_0B SCRUB MOTOR-1...
  • Page 14 GENERAL INFORMATION ELECTRICAL SCHEMATIC T300 (DRIVE MODEL) - 3 of 3 PAGE 3 = PAGE 1 WITH OPTIONAL LCD TOUCHSCREEN. B+ W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY 12 VDC 12 VDC (2) 12VDC BATTERIES 1/RED 13/BLK OFF BOARD CHARGER CABLE ASSY...

  • Page 15: Electrical Schematic T300 (Push Model) - 1 Of 3

    GENERAL INFORMATION ELECTRICAL SCHEMATIC T300 (PUSH MODEL) - 1 of 3 B+ W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY 12 VDC 12 VDC (2) 12VDC BATTERIES 1/RED 13/BLK OFF BOARD CHARGER CABLE ASSY P1-B- 13/BLK 13/BLK CABLE, CHARGER INTERFACE MODULE...
  • Page 16 GENERAL INFORMATION ELECTRICAL SCHEMATIC T300 (PUSH MODEL) - 2 of 3 J3-4 NOT_USED1 J3-3 FUSE-1 SHIELD1 INCLUDED IN CABLE ASSEMBLY 1/RED 3/ORA J3-2 CAN-1 J3-1 24/YEL J10-1 CAN+1 HALF_0A MTR-2 INCLUDED IN CABLE ASSEMBY 13/BLK 24/YEL J10-2 HALF_0B SCRUB MOTOR...
  • Page 17 GENERAL INFORMATION ELECTRICAL SCHEMATIC T300 (PUSH MODEL) - 3 of 3 PAGE 3 = PAGE 1 WITH OPTIONAL LCD TOUCHSCREEN. B+ W/FUSE,GND CABLE ASSY B+ W/FUSE,GND CABLE ASSY 12 VDC 12 VDC (2) 12VDC BATTERIES 1/RED 13/BLK OFF BOARD CHARGER CABLE ASSY...

  • Page 18: Electrical Schematic T300E (Drive Model) - 1 Of 2

    42/BRN 13/BLK AUX. SCRUB BRUSH RELAY SCRUB BRUSH RELAY 42/BRN 13/BLK MTR2 CB-5 1/RED 12/BRN 26/BLU 13/BLK SCRUB BRUSH RELAY SCRUB BRUSH MOTOR MTR3 CB-6 1/RED 15/GRN 29/WHT 13/BLK VAC FAN RELAY VAC FAN MOTOR T300, T300e Service Information (3-2017)
  • Page 19 105/GRN REAR FRAME 105/GRN OP.STATION BASE 105/GRN EC-H2O 105/GRN TRANSAXLE 105/GRN 105/GRN VAC FAN1 STATIC GROUND @ THE SCRUB HEAD J2-7 105/GRN USER INTERFACE STATIC GROUNDING (PART OF MAIN HARNESS AND OP.STATION HARNESS) KEY SWITCH1 T300, T300e Service Information (3-2017)

  • Page 20: Electrical Schematic T300E (Push Model) - 1 Of 2

    (SW. HELD = OPEN = FULL UP POSITION) 6/BLU 13/BLK AUX. SCRUB BRUSH RELAY SCRUB BRUSH RELAY 42/BRN 13/BLK MTR2 CB-5 1/RED 12/BRN 26/BLU 13/BLK SCRUB BRUSH RELAY SCRUB BRUSH MOTOR MTR3 CB-6 1/RED 15/GRN 29/WHT 13/BLK VAC FAN MOTOR T300, T300e Service Information (3-2017)
  • Page 21 J11-4 CELL_A1 J11-5 4EB/YEL CELL_A2 J12-10 OPEN_4 SW-11 EC-H20 FLUSH SW. 3EA/ORA J11-3 J11-1 13EA/BLK-WHT CELL_B1 FLUSH_GND J11-6 J11-2 3EB/ORA 9EA/WHT CELL_B2 FLUSH_SW OPT. EC-H2O MODULE HARNESS EC-H20 MODULE EC-H2O RELAY 6/BLU 13/BLK 13/BLK 6/BLU T300, T300e Service Information (3-2017)
  • Page 22 • Detergent Tank Empty • Detergent Tank Not Empty • Low Battery Voltage (Wet < 21.9 V, AGM < 22.7 V) • Fault • Battery Charger ON Interlock MOM001_1 T300, T300e Service Information (3-2017)

  • Page 23: Fastener Torque

    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 T300, T300e Service Information (3-2017)

  • Page 24: General Machine Dimensions/Capacities/Performance

    24 VDC, 0.6 hp / 0.47 kW Water lift 42 in / 1067 mm Water lift - Quiet Mode 28 in / 711 mm 24 VDC, 1.0 gpm / 3.8 L/min, min open flow ec-H2O solution pump Machine voltage 24 VDC T300, T300e Service Information (3-2017)

  • Page 25: General Machine Dimensions/Capacities/Performance

    Machine vibration at hand-arm* <2.5 m/s2 Ambient operating temperature Min: 32°F/0°C, Max: 110°F/43°C *Values per EN 60335-2-72. Specifications are subject to change without notice. *Values per EN 60335-2-72, Specifications are subject to change without notice. T300, T300e Service Information (3-2017)

  • Page 26: General Machine Dimensions/Capacities/Performance

    24 VDC, 0.6 hp / 0.47 kW Water lift 42 in / 1067 mm Water lift - Quiet Mode 28 in / 711 mm 24 VDC, 1.0 gpm / 3.8 L/min, min open flow ec-H2O solution pump Machine voltage 24 VDC T300, T300e Service Information (3-2017)

  • Page 27: General Machine Dimensions/Capacities/Performance

    Sound power level uncertainty L 83.8 dB(A) 85 dB(A) 83.5 dB(A) uncertainty K Machine vibration at hand-arm* <2.5 m/s2 Ambient operating temperature Min: 32°F/0°C, Max: 110°F/43°C *Values per EN 60335-2-72. Specifications are subject to change without notice. T300, T300e Service Information (3-2017)
  • Page 28 1302 mm 508 mm 17 in / 43 cm 17 in / 43 cm Model Model 54 in 22 in 1372 mm 559 mm 20 in / 50 cm 20 in / 50 cm Model Model T300, T300e Service Information (3-2017)
  • Page 29 GENERAL INFORMATION DUAL DISK MODEL 30.4 in 772 mm 43.1 in 1095 mm 51.25 in 26 in 1314 mm 660 mm T300, T300e Service Information (3-2017)
  • Page 30 GENERAL INFORMATION CYLINDRICAL BRUSH MODEL 30.4 in 772 mm 43.1 in 1095 mm 50.5 in 25 in 1283 mm 635 mm T300, T300e Service Information (3-2017)
  • Page 31 GENERAL INFORMATION ORBITAL PAD MODEL 30.4 in 772 mm 43.1 in 1095 mm 49 in 20.5 in 1245 mm 521 mm T300, T300e Service Information (3-2017)

  • Page 32: Maintenance

    Batteries, terminals and cables Check and clean 500 Hours Lower orbital isolators Replace (4 qty) 750 Hours Vacuum motor Replace carbon brushes 1250 Propel motor Replace carbon brushes Hours Brush motor Replace carbon brushes Brush belt Replace belt T300, T300e Service Information (3-2017)

  • Page 33: Machine Maintenance

    4. Drain and rinse out the solution tank (Fig. 89). Fig. 86 Fig. 89 2. Remove the debris tray and empty (Fig. 87). 5. 5. Disk scrub head - Turn pad over or replace when worn (Fig. 90). Fig. 87 Fig. 90 T300, T300e Service Information (3-2017)
  • Page 34 7. Wipe the squeegee blades clean. Inspect blades 10. Cylindrical scrub head - Remove and clean debris for wear and damage (Fig. 93). Rotate blade if trough (Fig. 96). worn. See SQUEEGEE BLADE REPLACEMENT. Fig. 96 Fig. 93 T300, T300e Service Information (3-2017)

  • Page 35: After Weekly Use

    (Fig. 97). Replace See BATTERIES. cap. Fig. 99 Fig. 97 2. Remove the drip tray cover from the squeegee 12. Charge batteries (Fig. 98). See BATTERIES. assembly and clean reservoir (Fig. 100). Fig. 98 Fig. 100 T300, T300e Service Information (3-2017)

  • Page 36: After Every 50 Hours Of Use

    FOR SAFETY: When servicing batteries, wear personal protection equipment as needed. Avoid contact with battery acid. Fig. 102 3. Cylindrical scrub head - Remove debris buildup from underside of scrub head (Fig. 103). Fig. 105 Fig. 103 T300, T300e Service Information (3-2017)

  • Page 37: Electric Motors

    Replace belts every 1250 hours. Contact trained per- sonnel for belt replacement (Fig. 106). Cylindrical Brush Drive Belt Fig. 107 Fig. 106 T300, T300e Service Information (3-2017)

  • Page 38: Batteries

    (Fig. 109). Do not remove bat- FLOODED (WET) LEAD-ACID BATTERIES tery caps when cleaning batteries. The flooded (wet) lead-acid batteries require routine watering as described below. Check the battery elec- trolyte level weekly. Fig. 109 T300, T300e Service Information (3-2017)

  • Page 39: Charging Batteries

    When a Fig. 110 battery reaches its end of life and must be replaced, Tennant highly recommends that the same battery For models equipped with off-board chargers, first type be used to continue to maximize the machines connect the charger’s DC cord into the machine’s bat-...

  • Page 40: Squeegee Blade Replacement

    Always disconnect the AC power supply cord first before disconnecting charger from machine. Fig. 114 3. Remove worn blade(s) from the blade retainer Fig. 113 (Fig. 115) Fig. 115 T300, T300e Service Information (3-2017)

  • Page 41: Ec-H2O Nanoclean Water Conditioning Cartridge Replacement

    1. Park the machine on a level surface, remove the key and set parking brake, if equipped. 2. Lift the recovery tank to access the ec-H2O water conditioning cartridge (Fig. 118). Drain recovery tank before lifting tank. Fig. 117 Fig. 118 T300, T300e Service Information (3-2017)

  • Page 42: Loading/Unloading Machine For Transporting

    Do not operate the machine on a ramp incline that exceeds a 21% grade level (Fig. 122). A winch must be used when ramp incline exceeds a 21% grade level. T300, T300e Service Information (3-2017)

  • Page 43: Storing Machine

    After storing machine in freezing temperatures, drain any remaining antifreeze from the solution tank and from the optional Severe Environment detergent tank. Add clean water to solution tank and to optional detergent tank and operate the machine to flush system. T300, T300e Service Information (3-2017)

  • Page 44: Troubleshooting

    Warning 2. J10 connector on scrub battery. If connections are good, controller board unplugged. replace control board. 3. Scrub controller board power disconnected. 4. Scrub controller inline power fuse defective/blown. 5. Scrub controller board problem. T300, T300e Service Information (3-2017)
  • Page 45 Check motor, connectors, and Open become disconnected at start-up or in relevant wiring to controller. If Warning standby. trip is still present after motor, connectors, and wiring have been checked, controller may be defective. Replace controller. T300, T300e Service Information (3-2017)
  • Page 46 Replace controller. 0x090B Propel Gone to Controller enters Sleep Mode. Turn controller off and then Sleep on to wake system. To disable Sleep Mode, program parameter Sleep Timer to 0 minutes. T300, T300e Service Information (3-2017)
  • Page 47 Check solenoid brake, Connected in solenoid brake at start-up or in connectors, and relevant wiring standby. to controller. If trip is still present after brake, connectors, and wiring have been checked, controller may be defective. Replace controller. T300, T300e Service Information (3-2017)
  • Page 48 35V on 24V connectors, and relevant wiring Warning controllers and approximately 45V on to controller. If trip is still present 36V controllers. after batteries, connectors, and wiring have been checked, controller may be defective. Replace controller. T300, T300e Service Information (3-2017)
  • Page 49 Propel Direction iDrive unit is faulty. Replace iDrive. Inputs Disagree 0x092B Propel Positive iDrive unit is faulty. Replace iDrive. Feedback Voltage Null 0x092C Propel Positive iDrive unit is faulty. Replace iDrive. Feedback Voltage Out of Range T300, T300e Service Information (3-2017)
  • Page 50 Replace iDrive. Overflow 0x0939 Propel Illegal iDrive unit is faulty. Replace iDrive. State 0x093A Propel Trip iDrive unit is faulty. Replace iDrive. Sense Active 0x093B Propel Trip iDrive unit is faulty. Replace iDrive. Sense Not Active T300, T300e Service Information (3-2017)
  • Page 51 Check motor, connectors, and Short High Fault been shorted to Battery Positive. relevant wiring to controller. If trip is still present after motor, connectors, and wiring have been checked, controller may be defective. Replace controller. T300, T300e Service Information (3-2017)
  • Page 52 0x0607 Detergent Pump 1. Control board problem. Replace control board. FET FET Fault 2. Power/battery issue on startup. detection includes motor, actuator, detergent pump, vacuum, and battery watering pump. T300, T300e Service Information (3-2017)
  • Page 53 2. Board lost power (wiring issue). network module. 3. Control board may be damaged. 3. Check connections. 4. ecH2O connector unplugged (never plugged in). 5. ecH2O connector pin 2 or 3 disconnected. 6. ecH2O connector power pin disconnected. T300, T300e Service Information (3-2017)
  • Page 54 0x0713 EC-H2O Pump 1. Current draw higher than expected. Check pump operating current. Over Current Warning 0x0717 EC-H2O Control 1. EC Module control board is Replace the NanoClean board failure / damaged. Controller kit. damage T300, T300e Service Information (3-2017)
  • Page 55 Tennant Technical Support 0x0727 EC-H2O Cell 1. Control board problem. Replace control board. FET FET Faults 2. Power/battery issue on startup. detection includes motor, actuator, detergent pump, vacuum, and battery watering pump. T300, T300e Service Information (3-2017)
  • Page 56 Empty tank level is too low to operate indicator. If fault persists, check correctly. connections/wiring. 2. Detergent tank switch connector unplugged. 3. Scrub Controller connector J4 unplugged. 4. Scrub Controller connector J4 pin 4 disconnected. T300, T300e Service Information (3-2017)

  • Page 57: Faults - Off Board Battery Charger

    Safety timer of one of the phases has battery capacity and that selected volt- been activated. age corresponds to battery voltage. Also, ensure that there are no elements in short circuit and that battery is not sulphated. T300, T300e Service Information (3-2017)

  • Page 58: Troubleshooting

    No Charge Mode LEDs User Interface board is not receiving power from Ensure pin connections between UI and charger at J7-9. charger connectors are not broken or unseated. T300, T300e Service Information (3-2017)
  • Page 59 TROUBLESHOOTING T300, T300e Service Information (3-2017)

  • Page 60: Onboard Battery Charging On (Option)

    (option) AC Power Cord J8-7 Machine Control Module (option) Battery Positive + Battery Negative - CAN + CAN-bus + P2-6 AC Volts CAN - CAN-bus - P2-10 J3-3 Interface CAN GROUND 113/BLK/WHT Module P2-1 PMC021 T300, T300e Service Information (3-2017)

  • Page 61: Batteries Failed To Charge/ Reduced Run Time (Onboard Charger)

    0.050 (50 points) specific grav- ity of each other? Terms: AC = Alternating Current AGM = Absorbed Glass Mat Specific Gravity = Relative density of a substance compared to water (1.000 specific gravity) T300, T300e Service Information (3-2017)

  • Page 62: Off Board Battery Charging On (Option)

    12 Volt Battery Charger Connector Not Used N.O. 4/YEL N.C. 5/GRN 6/BLU J7-10, J7-7 Interface Module Switch Battery Charger Interlock Switch ec-H2O Relay (option) J8-7 Machine Control Module (option) Battery Positive + Battery Negative - PMC021 T300, T300e Service Information (3-2017)

  • Page 63: Batteries Failed To Charge/ Reduced Run Time (Off Board Charger)

    0.050 (50 points) specific gravity of each other? Terms: AC = Alternating Current AGM = Absorbed Glass Mat Specific Gravity = Relative density of a substance compared to water (water = 1.000 specific gravity) T300, T300e Service Information (3-2017)

  • Page 64: Power-Up On

    N.C. P2-2 RED Cable Switch AC Power Cord Onboard Battery Charger (Opt) 6/BLU 13/BLK Interface Module J6 B+ Machine Control Module (Opt) Touch Panel Battery Positive + LCD Option Battery Negative - AC Volts PMC021 T300, T300e Service Information (3-2017)

  • Page 65: Machine Failed To Power Up

    Test voltage applied to the power-up subsys- age Drop tem as shown on the electrical schematic Location • Are the electrical circuits operating as shown and Repair on the electrical schematic? or Replace Necessary Components Terms: VDC = DC Voltage T300, T300e Service Information (3-2017)

  • Page 66: T300 Propel Subsystem (Option)

    Enabled Disabled Propel • Battery Charger ON Interlock • Fwd/Rev Throttle (Option) • Neutral - Ready State Command • PMC (Propel Motor • Fwd/Rev Switch Controller) Fault Input Battery Positive + Battery Negative - PMC021 T300, T300e Service Information (3-2017)

  • Page 67: T300 Failed To Propel

    Replace • Test voltage applied to the propel subsystem Necessary as shown on the electrical schematic Components • Are the electrical circuits operating as shown on the electrical schematic? Terms: BDI = Battery Discharge Indicator T300, T300e Service Information (3-2017)

  • Page 68: T300E Propel Subsystem (Option)

    Enabled Disabled Propel • Battery Charger ON Interlock • Fwd/Rev Throttle (Option) • Neutral - Ready State Command • PMC (Propel Motor • Fwd/Rev Switch Controller) Fault Input Battery Positive + Battery Negative - PMC021 T300, T300e Service Information (3-2017)

  • Page 69: T300E Failed To Propel

    Replace • Test voltage applied to the propel subsystem Necessary as shown on the electrical schematic Components • Are the electrical circuits operating as shown on the electrical schematic? Terms: BDI = Battery Discharge Indicator T300, T300e Service Information (3-2017)

  • Page 70: T300 Scrub Motor On

    Foot Pedal Battery Positive + Motor released on non-propel • Fwd/Rev Throttle models. Command or Bail Battery Negative - • Low Battery Voltage Activated on non- • Fault Propel models. • Battery Charger ON Interlock PMC011 T300, T300e Service Information (3-2017)

  • Page 71: T300 Scrub Motor Failed To Turn On

    TROUBLESHOOTING T300 SCRUB MOTOR FAILED TO TURN ON STEP ACTION VALUE(S) • Key On See “Faults” in the Go to Step #2 • Enable scrub motor TROUBLE- Is there a flashing BDI fault or LCD Pro-Panel • SHOOTING sec- (option) fault code present? tion of this manual •...

  • Page 72: T300E Scrub Motor On

    • Neutral - Ready State or Bail released on non-propel • Fwd/Rev Throttle Motor Battery Positive + models. Command or Bail Activated on non- • Low Battery Voltage Battery Negative - Propel models. • Fault • Battery Charger ON Interlock PMC021 T300, T300e Service Information (3-2017)

  • Page 73: T300E Scrub Motor Failed To Turn On

    Test voltage applied to the scrub motor sub- Location system as shown on the electrical schematic and Repair • Are the electrical circuits operating as shown or Replace on the electrical schematic? Necessary Components Terms: BDI = Battery Discharge Indicator T300, T300e Service Information (3-2017)

  • Page 74: Scrub Head Lift Actuator (Option)

    • Head Lowered - Foot • Head Raised - Foot Pedal Lift • Low Battery Voltage Pedal Battery Positive + Actuator • Load Current Fault • Battery Charger ON Interlock (Option) Battery Negative - PMC011 T300, T300e Service Information (3-2017)

  • Page 75: Scrub Head Failed To Raise/Lower

    Test voltage applied to the actuator subsys- Location tem as shown on the electrical schematic and Repair • Are the electrical circuits operating as shown or Replace on the electrical schematic? Necessary Components Terms: BDI = Battery Discharge Indicator T300, T300e Service Information (3-2017)

  • Page 76: T300 Vacuum Fan On

    Approx. 11 Volts Quiet Mode Operational Matrix: Enabled Disabled • Squeegee Raised • Squeegee Lowered Vacuum Fan • Low Battery Voltage Battery Positive + • Fault • Battery Charger ON Interlock Battery Negative - PMC011 T300, T300e Service Information (3-2017)

  • Page 77: T300 Vacuum Fan Failed To Turn On

    TROUBLESHOOTING T300 VACUUM FAN FAILED TO TURN ON STEP ACTION VALUE(S) • Key On See “Faults” in Go to Step #2 • Enable vacuum fan the TROUBLE- Is there a flashing BDI fault or LCD Pro-Pan- • SHOOTING el (option) fault code present?

  • Page 78: T300E Vacuum Fan On

    (Closed= Down) 38/GRY 3/ORA Vacuum Fan Motor CB6 (20A) 15/GRN 29/WHT 13/BLK Operational Matrix: Enabled Disabled • Squeegee Raised • Squeegee Lowered Vacuum Fan • Battery Charger ON Interlock Battery Positive + Battery Negative - PMC021 T300, T300e Service Information (3-2017)

  • Page 79: T300E Vacuum Fan Failed To Turn On

    Test voltage applied to the vacuum fan and Repair or subsystem as shown on the electrical Replace Nec- schematic essary Compo- • Are the electrical circuits operating as nents shown on the electrical schematic? Terms: BDI = Battery Discharge Indicator T300, T300e Service Information (3-2017)

  • Page 80: T300 Solution Control On (Conventional)

    TROUBLESHOOTING T300 SOLUTION CONTROL ON (CONVENTIONAL) 6/BLU J8-7 (KEY SWITCH INTERLOCK) SV 1 LEVEL ON TIME % PERIOD 2.5 SEC O (No LEDs) 0 S On/ 2.5 S O 28/GRY INPUT 4 (CLOSED = HEAD DOWN) Low (1 LED) 0.6 S On/ 1.9 S O...

  • Page 81: T300 Solution Control Failed To Turn On (Conventional)

    TROUBLESHOOTING T300 SOLUTION CONTROL FAILED TO TURN ON (CONVENTIONAL) STEP ACTION VALUE(S) • Key On See “Faults” in Go to Step #2 • Enable solution control (conventional) the TROUBLE- Is there a flashing BDI fault or LCD Pro-Pan- • SHOOTING...

  • Page 82: T300E Solution Control On (Conventional)

    • Solution Control ON Battery Positive + released on non-propel models. • Fwd/Rev Throttle (Conventional) • Low Battery Voltage Command or Bail • Fault Battery Negative - activated on non- • Battery Charger ON Interlock propel models. PMC021 T300, T300e Service Information (3-2017)

  • Page 83: T300E Solution Control Failed To Turn On (Conventional)

    Test voltage applied to the solution control and Repair or (conventional) subsystem as shown on the Replace Neces- electrical schematic sary Compo- • Are the electrical circuits operating as nents shown on the electrical schematic? Terms: BDI = Battery Discharge Indicator T300, T300e Service Information (3-2017)

  • Page 84: T300 Solution Control On (Ec-H2O)

    TROUBLESHOOTING T300 SOLUTION CONTROL ON (ec-H2O) J7-3 Interface Module 2/BRN ec-H2O Mode Switch 13/BLK ec-H2O Relay 6/BLU 13/BLK 13/BLK GND J12-5 66/BLU J12-13 WCM PUMP GND J12-6 J12-14 WCM 13/BLK PUMP 67/PUR Water Conditioning Module Pump J12-11 VCC_1 J12-12 VCC_2 46/BLU N.C.

  • Page 85: T300 Solution Control Failed To Turn On (Ec-H2O)

    TROUBLESHOOTING T300 SOLUTION CONTROL FAILED TO TURN ON (ec-H2O) STEP ACTION VALUE(S) • Key On See “Faults” in Go to Step #2 • Enable solution control (ec-H2O) the TROUBLE- Is there a flashing BDI, ec-H2O fault or LCD • SHOOTING...

  • Page 86: T300E Solution Control On (Ec-H2O)

    • Fwd/Rev Throttle Battery Positive + bail released on Command or Bail activated non-propel models. on non-propel models. Battery Negative - • Low Battery Voltage • ecH2O System Fault • Battery Charger ON ECC001 Interlock T300, T300e Service Information (3-2017)

  • Page 87: T300E Solution Control Failed To Turn On (Ec-H2O)

    (ec-H2O) subsystem as shown on the electri- Repair or Re- cal schematic place Neces- • Are the electrical circuits operating as shown sary Compo- on the electrical schematic? nents Terms: BDI = Battery Discharge Indicator T300, T300e Service Information (3-2017)

  • Page 88: T300 Se (Severe Environment) On

    TROUBLESHOOTING T300 SE (SEVERE ENVIRONMENT) ON 6/BLU J8-7 (KEY SWITCH INTERLOCK) Detergent Tank level Sw. 32/BRN SV 1 LEVEL ON TIME % PERIOD 2.5 SEC INPUT 0 (Open = Empty) J4-4 O (No LEDs) 0 S On/ 2.5 S O Low (1 LED) 0.6 S On/ 1.9 S O...

  • Page 89: T300 Se (Severe Environment) Failed To Turn On

    TROUBLESHOOTING T300 SE (SEVERE ENVIRONMENT) FAILED TO TURN ON STEP ACTION VALUE(S) • Key On See “Faults” in Go to Step #2 • Enable SE (Severe Environment) detergent the TROUBLE- pump SHOOTING Is there a flashing BDI fault or LCD Pro-Panel •...

  • Page 90: Sun-I/O Circuit Board Testing (Universal Schematic)

    P1-4 means plug number 1, pin number 4. Use this information to locate and identify proper wires per the actual electrical schematic. N = Negative (-) I = Inputs O = Outputs Battery Positive + Battery Negative - PMC021 T300, T300e Service Information (3-2017)

  • Page 91: Sun-I/O Circuit Board Testing Procedure

    2 An open circuit has infinite resistance “O.L.”. A shorted circuit has “0” resistance. Always test through the entire circuit. * Switched (+) and Unswitched (+) indicate positive battery voltage applied to the circuit board. Negative (-) indicates battery negative (ground) as part of the power supply to the circuit board. T300, T300e Service Information (3-2017)

  • Page 92: Can Open Network Issues

    2. Locate a CAN node location on the machine. 3. Carefully push probes into back of connector containing the CAN wires. 4. Since network remains connected in this mode, resistance should measure approximately 61 ohms. T300, T300e Service Information (3-2017)

  • Page 93: Node (Module) Resistance

    WIRE CONTINUITY TO NODE A check can be made between two points on the har- ness verifying continuity of the wire harness. Check the yellow to yellow connections and the green to green. T300, T300e Service Information (3-2017)

  • Page 94: Machine Node Table

    Machine model Nodes Master/Slave Master Slave Optional Nodes Standard Standard Standard Standard Standard Standard Optional Optional Optional Optional T300 User Scrub Charger EC H2O Interface Controller T300e/SS300 User Charger EC H2O Interface T300, T300e Service Information (3-2017)

  • Page 95: Service

    Decline the restart, located in the operator’s console. close Service Diagnostics and relaunch Service • Machine Control Module (T300-only option): The machine control module is located at the rear of Diagnostics. the battery compartment beneath a cover.
  • Page 96 12. Cycle the key switch to save selections. 9. Inspect the actual machine configuration and match applicable configurations from the drop- down menus and then click on the arrow button. T300, T300e Service Information (3-2017)

  • Page 97: Re-Configuring Existing Modules

    Authorized service providers can download the Service Diagnostics software from the My Tennant portal by visiting www.tennantco.com. Factory-Direct Tennant Service has this software installed on their ServiceLink devices. A USB cable connects from the notebook to an external port on the control console. The SERVICE DIAGNOSTICS TOOL configures up to five control modules depending on optional trim packages.
  • Page 98 (this is faster) or the header arrow button to launch all module re- programming (this is slower). Click on the refresh button to display the new configuration following reprogramming. 6. Cycle the key switch to save changes. T300, T300e Service Information (3-2017)

  • Page 99: Programming The I-Drive Module (Option)

    Authorized service providers can download the Service Diagnostics software from the My Tennant portal by visiting www.tennantco.com. Factory-Direct Tennant Service has this software installed on their ServiceLink devices. A USB cable connects from the notebook to an external port on the control console. The SERVICE DIAGNOSTICS TOOL configures up to five control modules depending on optional trim packages.

  • Page 100: Displaying Fault Codes

    Service Diagnostics software from the My Tennant portal by visiting www.tennantco.com. Factory-Direct Tennant Service has this software installed on their ServiceLink devices. A USB cable connects from the notebook to an external port on the control console. The SERVICE DIAGNOSTICS TOOL configures up to five control modules depending on optional trim packages.

  • Page 101: Battery Charger Settings

    (See OFF-BOARD BATTERY CHARGER below). IRIS MODELS: For models equipped with capability to report battery charging data via IRIS, Tennant rec- ommends using the same battery type. If a different 2. Press and hold the two outside arrows for 12 amp hour or battery type is desired, Contact Tennant seconds or until the middle lED turns solid yellow.
  • Page 102 (algorithms) until the desired battery The screen will display “PROGRAMMING type is located. PARAMETERS SAVED”. 5. Press the middle button to select the battery type. The red LED light will turn off. TURNS T300, T300e Service Information (3-2017)

  • Page 103: On-Board Battery Charger

    (Fig. 115). Fig. 117 6. Using a small standard screwdriver, turn the dial to the appropriate battery type according to the following chart (Fig. 118). T300, T300e Service Information (3-2017)

  • Page 104: Changing On-Board Battery Charger

    9. To set the BDI for the new battery type, plug the on- board battery charger cord into an electrical outlet. The machine’s software will automatically Fig. 120 reprogram the BDI to the new battery type. T300, T300e Service Information (3-2017)

  • Page 105: Battery Charger Operation

    Maintenance-free batteries can become damaged from an equalization charge, which is why it is important to make sure the Tennant-specified charger is programmed for the battery option used (see BATTERY CHARGER SETTINGS ON BOARD/...

  • Page 106: Removing Scrub Head Assembly

    2. Remove debris tray (cylindrical only). 6. Pull forward to remove shroud. Set shroud aside. 3. Remove scrub brushes and set aside. 7. Disconnect motor from wire harness connection. 4. Lower scrub head to floor. T300, T300e Service Information (3-2017)

  • Page 107: Installing Scrub Head Assembly

    NOTE: This procedure must be completed using a new set of brushes. Following this procedure using worn brushes may result in uneven brush wear and shortened brush life. 1. Apply chalk to a flat, level surface. T300, T300e Service Information (3-2017)
  • Page 108 NOTE: This must be done in order to keep water from washing away the chalk that has been applied to the floor. Purge any residual water, at another location, by running the brushes for 30 seconds before proceeding to Step 4. T300, T300e Service Information (3-2017)
  • Page 109 Loosen the top bolt just enough so the scrub head bracket moves freely and the scrub head settles in it’s natural position on the level floor. T300, T300e Service Information (3-2017)

  • Page 110: Removing Lower Orbital Head Isolators

    5. Loosen the 4 mm set screw securing the concentric motor weight to the motor shaft. 3. Flip the head upside down and remove the pads. 6. Remove the lower plate and the lower isolators (4). T300, T300e Service Information (3-2017)

  • Page 111: Installing Lower Orbital Head Isolator

    This weight simulates the actual down force on the scrub head and sets the shaft pre- load. Torque the set screw to 15 ft-lbs (20 Nm). 30 lbs. Set Screw 2. Disconnect batteries. 3. Remove batteries and set aside. T300, T300e Service Information (3-2017)

  • Page 112: Installing Transaxle Assembly (Option)

    1. Installation is the reverse of removal. 6. Remove wheel nuts (2). It will be necessary to raise the machine up and lower it to the right side to access the left side wheel. T300, T300e Service Information (3-2017)

  • Page 113: Ptc (Push-To-Connect) Fittings

    4. Pull on the fitting to check that the connection is secure. Test the system for leaks prior to leaving the site. (Fig. 4) T300, T300e Service Information (3-2017)

  • Page 114: Disconnecting

    With the collet held in this position, the tube can be removed. The fitting can be re-used. 2. Remove rear squeegee hose from recovery tank. 3. Cut zip tie and disconnect vacuum fan from wire harness. T300, T300e Service Information (3-2017)

  • Page 115: Installing Vacuum Motor

    4. Remove vacuum fan mounting hardware (3). INSTALLING VACUUM MOTOR FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key and disconnect batteries. 1. Installation is the reverse of removal. 5. Remove vacuum fan assembly. T300, T300e Service Information (3-2017)

  • Page 116: Removing Carbon Brushes

    2. Loosen carbon brush mounting torx screws (4). 2. Clean the commutator using a stone and then use compressed air to clean any dust from inside the motor. 3. Lift up to release and remove carbon brushes (2). T300, T300e Service Information (3-2017)

  • Page 117: Removing Water Solenoid (T300E Shown)

    5. Carefully lower machine onto the left side using a protective blanket. 2. Disconnect batteries. 6. Proceed to the next step for standard models. Loosen knob set screws and remove knob. Set knob aside. 3. Remove batteries and set aside. T300, T300e Service Information (3-2017)

  • Page 118: Installing Water Solenoid

    1. Installation is the reverse of removal. 8. Disconnect PTC (Push-To-Connect) connections (2) from solenoid. See PTC (PUSH-TO- CONNECT) FITTINGS in the SERVICE section of this manual. T300, T300e Service Information (3-2017)

  • Page 119: Adjusting Water Solenoid (T300E Only)

    Set knob aside. 4. Add water to the solution tank. 2. Disconnect scrub head side PTC (Push-To- Connect) fitting from water solenoid. See PTC (PUSH-TO-CONNECT) FITTINGS in the SERVICE section of this manual. T300, T300e Service Information (3-2017)
  • Page 120 6. Turn the solenoid valve stem completely counter clockwise for maximum water flow. 7. Slowly turn the valve stem clockwise until water flow stops. Stop immediately when water flow stops. This is the no-flow or clockwise knob setting. T300, T300e Service Information (3-2017)

  • Page 121: Control Modules

    6. Carefully lower the heat sink and machine control module assembly and then disconnect all 3. Remove batteries and set aside. electrical connections. NOTE: Be careful not to damage the IRIS radio antenna (option) when lowering the assembly. T300, T300e Service Information (3-2017)

  • Page 122: Installing Control Module

    ESD damage to the logic board. 4. Remove four (4) hex screws to remove the control console plate. 2. Installation is reverse of removal. NOTE: The torque specification for control module electrical cables is 52 in-lbs (6 Nm). T300, T300e Service Information (3-2017)

  • Page 123: Installing I-Drive Module (Option)

    1. Installation is reverse of removal. 3. Carefully lower access cover. 2. The new I-Drive module must be programmed to operate in the scrubber. See SERVICE DIAGNOSTICS TOOL in the SERVICE section of this manual. 4. Disconnect charger electrical connections. T300, T300e Service Information (3-2017)

  • Page 124: Installing Onboard Battery Charger

    Panel can be configured through the touch panel. All other models must be configured using separate configuration software via a mini-USB programming port on the back of the operator’s console. (See SERVICE DIAGNOSTICS TOOL in the SERVICE section of this manual.) T300, T300e Service Information (3-2017)

  • Page 125: Removing Interface Module

    4. Carefully lower access cover. 1. Installation is reverse of removal. 2. The new interface module must be programmed to operate in the Scrubber. See SERVICE DIAGNOSTICS TOOL in the SERVICE section of this manual. T300, T300e Service Information (3-2017)

  • Page 126: Removing Bail Switch, Speed Potentiometer, Or Directional Switch

    1. Key Off and batteries disconnected. 2. Remove rear access cover mounting screws (2). 6. Remove T-25 torx mounting screw (1). 3. Carefully lower access cover. 7. Remove cover and set aside. 4. Remove T-25 torx mounting screws (2). T300, T300e Service Information (3-2017)
  • Page 127 13. Remove screws (9) from rear of operator’s a socket to remove the nut securing the console and separate console assembly. potentiometer or the directional switch. 11. Remove bail screws (2) and set bail aside. T300, T300e Service Information (3-2017)

  • Page 128: Installing Bail Switch, Speed Potentiometer, Or Directional Switch

    POTENTIOMETER, OR DIRECTIONAL SWITCH to the side to remove. FOR SAFETY: When servicing machine, disconnect battery connections before working on machine. 1. Installation is reverse of removal. 15. Remove bail switch. T300, T300e Service Information (3-2017)

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