Part of the Kubota Repair Manuals.
This is the Kubota M135X-S workshop manual supplement (publication 9Y121-04100), covering the additional and altered functions of the M135X-S tractor compared with the base M135X. It runs 126 pages and is built around the V6108-TIE3 diesel engine, with the front suspension system as its main focus.
The supplement documents the front axle structure and servicing, the hydraulic system that drives the front suspension including the pump, priority valve, suspension cylinder, valve and accumulator, and the electrical system with its suspension ECU and switch modes. You get servicing specifications, tightening torques, and step-by-step disassembly.
Mechanics use this PDF alongside the base M135X workshop manual to service the suspension, hydraulic, and electrical hardware unique to the M135X-S, with grounded torque and pressure figures.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Si Information | 3-10 | Safety First, Safety Decals, Specifications, Dimensions |
| Sg General | 11-25 | Lubricants, Fuel and Coolant, Maintenance, Check and Maintenance (Check Point: 100 Hours, 1500 Hours, 2 Years), Special Tools (Tractor) |
| S6 Front Axle | 26-40 | Structure, 4-Wheel Drive Type, Front Suspension, Propeller Shaft, Drive Case, Preparation for Removing the Front Axle, Front Axle Case, Main Frame |
| S8 Hydraulic System | 41-92 | Structure, Suspension Cylinder Position, Hydraulic Circuit, Components (Hydraulic Pump, Flow Priority Valve, Suspension Cylinder, Suspension Valve, Accumulator) |
| S9 Electrical System | 93-126 | General (Front Suspension Outline, Outline, Front Suspension Control System), ECU (Connector), Suspension Switch (on Mode, Lock Mode, Auto Lock Mode) |
Documents This Manual Refers To
The manufacturer cites these publications by number. We carry them:
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Transmission case capacity | 60 L / 63.4 U.S.qts / 52.8 Imp.gals | p. 13 |
| Transmission case lubricant type | KUBOTA UDT or SUPER UDT fluid* | p. 13 |
| Pump for power steering flow rate (Above 60.0 L/min.) | 15.8 U.S.gals/min. / 13.2 Imp.gals/min. | p. 47 |
| Main Relief Valve Setting Pressure (Above 1000 min-1 (rpm)) | 16.7 to 17.5 MPa / 171 to 178 kgf/cm² / 2430 to 2530 psi | p. 66 |
| Engine Oil Capacity (with filter) | 14.6 L | p. 9 |
| Fuel Tank Capacity | 190 L | p. 9 |
| Max. lifting force (at lift points) | 2635 kg | p. 9 |
| Remote hydraulic control system pressure | 19.7 MPa | p. 9 |
| Front Frame Plate Allowable Concave Depth | 2.0 mm | p. 32 |
| Main Frame Pin Allowable O.D. | 33.000 mm | p. 32 |
| Flange yoke mounting screw torque (M14, 7T) | 124 to 147 N·m | p. 33 |
| Regulator Valve Setting Pressure (At Maximum Engine Speed) | 2.75 to 2.94 MPa | p. 66 |


















