Kubota BX4070 Owner's Manual
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Kubota BX4070 Owner's Manual

Bx-80 series tl cab for kubota bx1880, 2380 & 2680
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OWNER'S MANUAL
MANUAL P/N: IM-BX4070
MANUAL P/N: 77700-08524
BX-80 Series TL Cab
P/N BX4070
For use with: KUBOTA BX1880, 2380 & 2680
Rev. F, 10/27/2020
PLEASE READ THIS MANUAL CAREFULLY
KEEP READY AT ALL TIMES

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  • Page 1 OWNER’S MANUAL MANUAL P/N: IM-BX4070 MANUAL P/N: 77700-08524 BX-80 Series TL Cab P/N BX4070 For use with: KUBOTA BX1880, 2380 & 2680 Rev. F, 10/27/2020 PLEASE READ THIS MANUAL CAREFULLY KEEP READY AT ALL TIMES...

  • Page 2: Introduction

    INTRODUCTION TO THE PURCHASER TO THE DEALER All products are designed to give safe, Give this manual to the owner upon delivery of dependable service if they are operated and the equipment. maintained according to instructions. Read and understand this manual before TO THE PURCHASER AND THE DEALER operation, and keep it in your files for further reference.
  • Page 3 California Proposition 65 Kubota Corporation notes that specifications and technical information are subject to change without notice and Kubota does not represent or warrant that the information in this publication WARNING is completely accurate or current; however, Kubota used reasonable efforts to set forth and include accurate and up to date information in this publication.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION TABLE OF CONTENTS SAFETY INFORMATION GENERAL SAFETY INFORMATION DECALS AND PLACEMENT ESTIMATED ASSEMBLY TIME ASSEMBLY OPERATION MAINTENANCE CHECK LIST FOR INSPECTION AFTER ASSEMBLY TROUBLESHOOTING PARTS BREAKDOWN TORQUE SPECIFICATION TABLE...

  • Page 5: Safety Information

    SAFETY INFORMATION WARNING: BEFORE OPERATION SAFE OPERATION Children Tragic accidents can occur if the 1. Prior to operation, clear work area of all operator is not alert to the presence of objects that can be picked up and children. Children are generally attracted thrown.
  • Page 6 Safe Operation Continued hitch or the implement. 18. Always make sure all heater 8. Park the machine/implement on level components are properly installed and ground, place the transmission in securely fastened BEFORE operation. neutral, set the parking brake, lower 19. Do not use loader, quick hitch, or an the equipment to the ground, place all implement as a jack for servicing control levers in neutral, shut off the...
  • Page 7 General Information During Operation Continued 1. Always make sure all components are gear as required by the operating properly installed and securely environment. fastened BEFORE operation 3. Operate only during daylight hours, or 2. Read the operator's manual carefully when the area is well lit with bright before using machine.

  • Page 8: General Safety Information

    GENERAL SAFETY INFORMATION BEFORE YOU START SERVICE NO SMOKING OR OPEN FLAMES WHILE FUELING Read all instructions and safety instructions in this • Fuel is extremely flammable and dangerous. Never • manual and on your machine safety decals. smoke near fuel. If fuel is spilled on the machine, its Clean the work area and machine.
  • Page 9 GENERAL SAFETY INFORMATION LOADER AND BACKHOE SAFETY PREVENT A FIRE • Engage the loader control valve lock to prevent • Fuel is very flammable and explosive under some accidental actuation when the implement is not in conditions. Do not smoke or let flames or sparks in use or during transport.

  • Page 10: Decals And Placement

    DECALS AND PLACEMENT IMPORTANT: Keep all decals clean and legible. Replace all missing, illegible, or damaged decals. IMPORTANT: Decal placement locations shown are approximate; decals should not be placed in a location where the operator’s field of view is impeded, and should not cover any portion of other decals installed in the same vicinity. INSTALLING OR REPLACING DECALS: Thoroughly clean the area where decal is to be placed using mild soap and water.

  • Page 11: Estimated Assembly Time

    Your machine may be configured differently (e.g. SP1 vs. SP2, etc.), but the outline for the procedure should still be followed. For further support for any issues not covered within the pages of this manual, please contact your local Kubota representative. WARNING:...
  • Page 12 ASSEMBLY 1. Remove and save the SMV Sign Remove + Save Figure 1: Remove SMV Sign 2. Remove and save the front three screws holding the left lever cover to the fender. Tools: 10mm Socket Remove + Save Figure 2: Remove 3 Screws (Left Side) 3.
  • Page 13 ASSEMBLY 14mm Socket Remove 5. Install a bolt in each hole to re-secure the tractor fenders. Figure 4: Remove Grab Handles (Left + Right) (4) 3/8-16x3/4 Flange Bolts (4) 3/8-16 Flange Locknuts Tools: 9/16 Wrench 9/16 Socket 6. If installing optional seal kit (BX4077), it should be installed at this time for easiest access.
  • Page 14 ASSEMBLY Remove + 10. Remove the carriage bolt that the air intake screen Save thumbnut was attached to and replace with a longer carriage bolt (supplied). Reuse the nut from the factory bolt. Note: The steering wheel may need to be tilted to allow the bolt to come out of the hole.
  • Page 15 ASSEMBLY 13. Disconnect the negative battery terminal. Tools: 13mm Wrench Remove 14. Remove the nut from the positive battery terminal Tools: 10mm Wrench 15. Locate the Relay Wire Harness (P/N: 77700-05439) in the hardware box. Connect the ring terminal on the red wire to the stud on the positive battery terminal and Figure 12: Remove Bolts reinstall the nut.
  • Page 16 ASSEMBLY 22. Prepare the following fasteners to attach the rear panel and place in a convenient-to-reach location. (4) 5/16-18 x 3/4” Flange Bolts (4) 5/16ID x 1.25” OD Steel Fender Washers (4) Flange Bolts 23. With assistance, place the rear panel into position as shown in Figure 21 using extra caution to ensure that (4) Flange Nuts the plastic on the left side fits properly between the...
  • Page 17 ASSEMBLY (1) Flange Nut 26. Secure the front of the left frame to the front of the floorboard and leave finger tight. (1) 5/16-18 x 3/4” Flange Bolt (1) Flange Bolt (1) 5/16-18 Flange Nut 27. Punch out the decal covering the outer hole in the floorboard and install the following bolt.
  • Page 18 ASSEMBLY 32. With no heater being installed, remove the wire grommet from the hole on the right frame where shown and push the wire leads back into the tube. Install the supplied hole plug to cover the hole. Install a flange bolt into threaded inserts on both sides of the cab.
  • Page 19 ASSEMBLY Qty: 4 - 5/16 bolts through rear mounts and into rear panel. Note: Be sure that there is proper clearance between the bottom of the rear panel and the ROPS. If there is little clearance, use assistance to lift the rear of the cab and (2) Flange Bolts then tighten.
  • Page 20 ASSEMBLY 39. Repeat step 38 for right side. (1) Flange Nut (1) Nylon Washer 40. With assistance, install the windshield. Use a spacer block under each hinge. Leave bolts finger tight. (1) Flange Bolt (4) 5/16-18 x 1-1/2” Flat Head Bolts (4) 5/16-18 Flange Nuts Figure 36: Install Left Front Roof Mount 41.
  • Page 21 ASSEMBLY first circuit breaker. If no accessories are installed, no connection is required. (4) Flange Bolts 45. Connect the black wire with the push-on terminal to the ground strip. (4) Flange Nuts Figure 41: Attach Windshield Latches 46. Connect the weatherproof connector from the relay wire harness installed in steps 14-17 to the connector on the cab side power harness protruding from the bottom of the right sideframe.
  • Page 22 ASSEMBLY 49. Install a 7” piece of foam (see the white dashed lines in photo) to the top of the floorboard and route it down under where the air intake screen will sit as in Figure 49, repeat for the right side. Figure 46: Connect Weatherproof Connector (6) Flange Bolts (6) Steel Washers...
  • Page 23 ASSEMBLY 52. The front flasher light harnesses (P/N: 77700-08546) are factory installed in each cab side frame. Route the harnesses around the plastic panels (see the white dashed lines in photo) using the cable clamps provided. Be sure the wires are close to the fenders as they are routed down and out of the cab so the seat springs clear them easily.
  • Page 24 ASSEMBLY Harness From Machine 55. Install the doors and reconnect the gas shocks. Holding the door 180° from closed will allow it to slide under the roof before aligning the hinge pins. See door troubleshooting on page 30 for information about adjusting the door latches and hinges.
  • Page 25 ASSEMBLY 56. Replace SMV sign in the original location. Figure 56: Install SMV Sign 57. If installing a snow blower attachment with a manual chute rotation, replace the plug in the cowl with the supplied plastic split grommet. (1) Split Grommet (1) Split Grommet Figure 57: Install Split Grommet...

  • Page 26: Operation

    Pop-Out Windshield LIFT-OFF DOORS For added ventilation, the doors on the BX4070 cab lift off in seconds without tools. To lift off: Stabilize the door and take pressure off the gas shock.
  • Page 27 Removable Radiator Intake Shroud SEAT RECLINING WARNING The rear panel in the BX4070 cab is as far back as it could be placed while maintaining clearance for various BX tractor options. A seat travel limiting plate has been installed to prevent...

  • Page 28: Maintenance

    MAINTENANCE CARE AND MAINTENANCE: Check and tighten all hardware after 20 hours of operation. Periodically inspect and tighten hardware for the remainder of the unit’s service life. Keep the components clean in order to prevent dust and dirt from form- ing an unattractive film.

  • Page 29: Check List For Inspection After Assembly

    CHECK LIST FOR INSPECTION AFTER ASSEMBLY Inspector: Date Completed: Tractor Model: Serial Number: Classification Inspection Items Result Assembly 1. Check for proper tightening of all fasteners 2. Check for proper wire connections Operation 1. Check to see if relay clicks on/off with ignition 2.

  • Page 30: Troubleshooting

    TROUBLESHOOTING Possible Solution Condition • • Door latch and striker pin do not line up vertically. Loosen striker pin and move up or down using (2) 3/4” wrenches to adjust. • • Door latch and striker pin do not line up horizontally. Loosen (2) 1/4-20 hex flange screws between latch and door.

  • Page 31: Parts Breakdown

    KEYS, CAB DOOR N.S. 77700-05439 KF2-RWH WIRE HARNESS, RELAY, KF2 N.S. 77700-08524 IM-BX4070 INSTALLATION INSTRUCTIONS, KBX80 TL N.S. = Not Shown HARDWARE KIT 2X—BALL STUD, 10MM, 5/16-18 2X—SHOULDER SCREW, 3/8” DIA X 1LG 1X—CARRIAGE BOLT, 5/16-18 X 1LG 1X—CARRIAGE BOLT, M8X1.25 X 40LG 4X—SCREW, FLAT HEAD, 5/16-18 X 1.5LG...
  • Page 32 PARTS BREAKDOWN ITEM #: PART NUMBER: CODE NUMBER: QTY/KIT: DESCRIPTION: 77700-08527 103-00007 WINDSHIELD SUPPORT ASSEMBLY 77700 01480 9DP01 DOME PLUG, 7/16", HEYCO #2633 77700-08558 9DP02 DOME PLUG, 1", HEYCO #2713 77700-08559 9DP10 DOME PLUG, 3/8", HEYCO #2617 77700-05150 9DP16 HOLE PLUG, .75" X 1/8" GRIP, HEYCO #2683 77700 05153 9VH2-01 HOLE PLUG FOR V-SERIES BK CARLING SWITCH...
  • Page 33 PARTS BREAKDOWN ITEM #: PART NUMBER: CODE NUMBER: QTY/KIT: DESCRIPTION: 77700-08516 106-00016 REAR PANEL ASSEMBLY, TL 77700-08519 9GL-00019 REAR PANEL GLASS, TL 77700-08520 9GL-00021 REAR LEG WINDOW, TL 77700-08521 9GL-00022 REAR PANEL GLASS, LOWER, TL 77700-08522 P-00021 FUEL FILLER SHROUD, TL, RIGHT 77700-08523 P-00022 STORAGE BOX SHROUD, TL, LEFT...
  • Page 34 PARTS BREAKDOWN ITEM #: PART NUMBER: CODE NUMBER: QTY/KIT: DESCRIPTION: 77700-08531 109-00006-L SIDEFRAME ASSEMBLY, LEFT 77700-08532 109-00006-R SIDEFRAME ASSEMBLY, RIGHT 77700-08547 9DL01D-H STRIKER BOLT, HARD, 42MM OAL 450-600 HV1, 170-200 HB 30, HB 77700-08548 9DP05 DOME PLUG, 11/16", HEYCO #2673 77700-05457 9HR03 RUBBER GROMMET, .4375IDx.125GW, x.6875GDx.9375OD (RPD G3102)
  • Page 35 PARTS BREAKDOWN ITEM #: PART NUMBER: CODE NUMBER: QTY/KIT: DESCRIPTION: 77700-08529 107-00013-L DOOR ASSEMBLY, LEFT 77700-08530 107-00013-R DOOR ASSEMBLY, RIGHT 77700-08550 9GL-00028 DOOR WINDOW, LOWER, GLASS 77700-08554 9SW-00009-L SLIDING WINDOW, FS-105, 29.56 X 24.62 X 22.55 X 28.76 77700-08551 9SW-00009-R SLIDING WINDOW, FS-105, 29.56 X 24.62 X 22.55 X 28.76 77700-08555 PL-00010-L...

  • Page 36: Torque Specification Table

    TORQUE SPECIFICATION TABLE...

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