Kubota M5 Cab and ROPS
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      Kubota M5 - Hydraulic Steering Control Installation

      This article explains how to install the hydraulic steering valve onto a Kubota M5 Tractor.

      image6-2


      Package #0103-KT-4006 Material List

      ITEM

      QTY

      PART #

      DESCRIPTION

      1

      1

      9999-FP-3001A

      54035-118 AUTOPILOT PLATFORM KIT, M5 SERIES KUBOTA

       

      Items consumed from the 54035-118 Trimble Platform Kit

      QTY

      TRIMBLE PART#

      DESCRIPTION

      1

      89017

      MANIFOLD/VALVE H3, IH D03 08L/MIN HIFLOW

      1

      66113

      CARTRIDGE VALVE, PFRD 110 PSI

      1

      49669

      PRESSURE SENSOR, 3000 PSI, #4 ORB

      1

      66534

      MANIFOLD, DUAL COUNTERBALANCE VALVE W/ SHUTTLE - 4.5:1 - 2000 PSI

      1

      97473

      BRACKET, AP MANIFOLD KUBOTA  SERIES

      2

      NONE

      HEX HEAD BOLT, M20-1.5 x 40MM 

      2

      NONE

      FLAT WASHER, M20

      2

      NONE

      HEX HEAD BOLT, ⅜-16 x 1.25 IN

      2

      NONE

      FLAT WASHER, ⅜

      2

      NONE

      SOCKET HEAD CAPSCREW, ¼-20 X 1 ¼ IN

      2

      NONE

      NYLON LOCK NUT, ¼-20

      4

      NONE

      FLAT WASHER, ¼ IN

       

      2

      2

      9999-HH-2005A

      HOSE, VALVE PORTS A & B TO COUNTERBALANCE VALVE

      3

      2

      9999-HH-2004A

      HOSE, STEERING CONTROLLER L/R TO COUNTERBALANCE VALVE

      4

      1

      9999-HH-2003A

      HOSE, AUTOPILOT VALVE TANK RETURN PORT TO T12L TEE

      5

      1

      9999-HH-2002A

      HOSE, TRACTOR PRESSURE LINE TO AUTOPILOT VALVE P-PORT

      6

      1

      9999-HH-2001A

      HOSE, A.P. VLV EF PORT TO EW12L ON STEERING HAND PUMP P-PORT

      7

      4

      9999-HF-1009A

      STRAIGHT THREAD CONNECTOR, -6 ORFS / -8 M ORB

      8

      2

      9999-HF-1008A

      STRAIGHT THREAD ELBOW, -6 ORFS / -8 M ORB

      9

      3

      9999-HF-1007A

      STRAIGHT THREAD ELBOW, -8 ORFS / -8 M ORB

      10

      2

      9999-HF-1006A

      SWIVEL NUT ELBOW, -6 ORFS / -6 F ORFS SW

      11

      2

      9999-HF-1005A

      3/8 SWIVEL NUT RUN TEE

      12

      2

      9999-HF-1004A

      NPTF MALE W/ 60° CONE / BSPT 1/4-19 BSPP X 1/4-18 NPT

      13

      2

      9999-HF-1003A

      FEMALE PIPE THREAD SWIVEL, -6 ORFS SWIVEL / 1/4-18 NPTF

      14

      1

      9999-HF-1002A

      T UNION TEE, EO 24 DEG. CONE

      15

      2

      9999-HF-1001A

      SWIVEL NUT ELBOW, 24° FLARELESS / FLARELESS SWIVEL

      Hydraulic Fitting Cross Reference Table

      Qty

      Parts Item #

      Parker

      Hannifin #

      Sabanto #

      Description

      4

      8

      6-8 F5OLO

      9999-HF-1009A

      STRAIGHT THREAD CONNECTOR, -6 ORFS / -8 M ORB

      2

      9

      6-8 C5OLO

      9999-HF-1008A

      STRAIGHT THREAD ELBOW, -6 ORFS / -8 M ORB

      2

      10

      8 C5OLO

      9999-HF-1007A

      STRAIGHT THREAD ELBOW, -8 ORFS / -8 M ORB

      2

      11

      6 C6LO-S

      9999-HF-1006A

      SWIVEL NUT ELBOW, -6 ORFS / -6 F ORFS SW

      2

      12

      6R6LO-S

      9999-HF-1005A

      3/8 SWIVEL NUT RUN TEE

      2

      13

      4-4FMK4S

      9999-HF-1004A

      NPTF MALE W/ 60° CONE / BSPT 1/4-19 BSPP X 1/4-18 NPT

      2

      14

      6 G6L-S

      9999-HF-1003A

      FEMALE PIPE THREAD SWIVEL, -6 ORFS SWIVEL / 1/4-18 NPTF

      1

      15

      T12L

      9999-HF-1002A

      T UNION TEE, EO 24 DEG. CONE

      2

      16

      EW12L

      9999-HF-1001A

      SWIVEL NUT ELBOW, 24° FLARELESS / FLARELESS SWIVEL

       

      Install the Trimble Autopilot Platform Kit

      Note: The Trimble Autopilot Platform Kit includes installation instructions. The following steps are a supplement to clarify how to complete the installation.

      Step 1

      Install the oil return line tee:

      • Locate the hydraulic return line to the oil cooler.
      • Mark 1¼ inches of the hardline to be removed.
      • Make sure the part to be removed is straight with an additional 1½ inches of straight tube on each side
      • Remove the hydraulic return line from the tractor and remove 1¼ inches of the hardline using a hacksaw or cut-off wheel.
      • Clean any debris from the line and reinstall.
      • Lubricate and install nuts and ferrules onto the tube.
      • Install the tee and tighten finger-tight. Make sure the tube is fully seated into the tee.
      • Tighten nuts 1½ turns to properly seat ferrules.

      Reference Note: If the hydraulic steering system needs to be removed from the tractor, a Gates 12FDL-CAP fitting can be used to cap the tee that is added to the tractor’s tank return line. 

       

      Steering Vlv on M5 ROPS

      Step 2

      Assemble the Autopilot Steering Valve with the corresponding hydraulic fittings.

      Image 1. Autopilot Steering Valve

      Image 2. Counterbalance Valve

      Image 3. Assembled Valves

      Step 3

      Mount Valve Assemblies

      1. Locate M20 - 1.5 tap. Chase the existing threads to ensure they are free of paint and debris.
      2. Mount plate using M20 - 1.5 x 40mm bolts and flat washers. Min bolt torque: 200 LBS FT.
      3. Mount Counterbalance Valve Assembly using ¼ - 20 x 1 ¼ socket cap screws, flat washers and nylon locking nuts. Leave loose until all hoses are attached. Torque to 10 LBS FT.
      4. Mount Autopilot Steering Valve using ⅜-16 x 1¼ inch bolts and flat washers. Torque to 36 LBS FT.

      Step 4
      Install Hydraulic Hoses and Fittings

      Steering Hand Pump Ports

      Hose Part Number

      Zip Tie Color

      Routing

      Existing 

      (Blue Tape)**

      Blue

      Remove from hand-pump and attach to A2

      Existing**

      Black

      Remove from hand-pump and attach to B2

      9999-HH-2004A

      Orange

      A on hand-pump to A1 on Counterbalance Valve

      9999-HH-2004A

      Gray

      B on hand-pump to B1 on Counterbalance Valve

      9999-HH-2001A

      Red

      P on hand-pump to EF Port on Steering Valve

      9999-HH-2002A

      Yellow

      Elbows added to tractor pressure hardline to Pressure Port on Steering Valve

      9999-HH-2005A

      1-Purple

      Steering Valve “A” to Counterbalance Valve A3 (Light Purple)

      9999-HH-2005A

      2-Purple

      Steering Valve “B” to Counterbalance Valve B3 (Dark Purple)

      9999-HH-2003A

      Green

      Steering Valve Tank-port to Tee placed in steel oil cooler return line

      **Existing hoses on tractor that are connected to the front axle steering cylinder

      “Hand-Pump” refers to the radial pump on the tractor, connected to the steering wheel.

      “Steering Valve“ refers to Trimble steering manifold valve.

      “Counterbalance“ Valve refers to Trimble Counterbalance valve

       

       

      Step 4A

      • Remove the factory hose with blue tape from Port A on the Steering Pump. Reattach the hose to the top of Counterbalance Valve A2.
      • Remove the other factory hose from the steering pump and attach the hose to the top of Counterbalance Valve B2.
      • Attach hose 9999-HH-2004A (Orange) to Port A1 on Counterbalance Valve and Port A on Steering Pump.
      • Attach hose 9999-HH-2004A (Gray) to Port B1 on Counterbalance Valve and Port B on Steering Pump.

      Step 4B

      • Remove Hardline from Port C on Steering Pump. Attach hose 9999-HH-2001A (Red) to Port C on Steering Pump and to the Port EF on Steering Valve.
      • Attach two 9999-HF-1001A elbows to the hard line previously on Steering Pump Port C, forming a U.
      • Attach hose 9999-HH-2002A (Yellow) to the two elbows attached to the hardline. Attach other end to Port P on Steering Valve

      Step 4C

      • Connect hose 9999-HH-2005A (1-Purple/Light Purple) to Counterbalance Valve A tee and Steering Valve Port A3.
      • Connect hose 9999-HH-2005A (2-Purple/Dark Purple) to Counterbalance Valve B tee and Steering Valve Port B3.

      Step 4D

      Connect solenoid valve connectors to the Sabanto vehicle wiring harness.

      Make sure Steering Connector A & B on the vehicle harness are plugged into the corresponding connectors on the solenoid with solenoid B being nearest to the tractor.