Kubota L185-L355 Tractor Shop Manual 1976-1985

Kubota L185-L355 series tractor troubleshooting and repair reference, covering engine, transmission, hydraulics, and more. Includes part numbers and diagrams. Ref: Z751A

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Document Details

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Document Number / Seller:
25117 / Matthew Mason
File Size:
31.70 MB
File Type:
PDF
Language:
English
Pages:
62
Printable:
Yes
Category:
Tractor
Last updated / verified
Dec 28, 2025

Models Covered & Key Technical Specifications

Kubota L185/L235/L245/L275/L285/L295/L305/L345/L355 (Z751A) — 1976–1985 Diagnostic Briefing for L-Series Compact Tractors

  • Documented Technical Data: 743 cc (45.3 cu.in.) engine displacement as the baseline cylinder volume Specifications.
  • Calibrated Power Rating: Rated Power at PTO Shaft is 11.5 kW (15.45 HP) as the active printing consumption Threshold.
  • Rated RPM Specifications: Maximum rated engine speed achieves 2950 rpm (high idle) on Models L185, L245, and L295 throughout complete operating Threshold.
  • Principal Specifications: Valve clearance sets 0.18–0.22 mm (0.007–0.009 inch) for both intake and exhaust valve actuation Parameters.
  • Documented Injection Pressure: Injection pressure defines 13720–14700 kPa (1990–2135 psi) injection system threshold Requirements.
  • Design Voltage Specifications: System pressure reaches 13240–14690 kPa (1920–2130 psi) hydraulic relief setting across all tractor Configuration.

Professional Workshop Service Manual & Technical Specifications

OEM-Grade Engineering Installation Manual: Kubota L185/L235/L245/L275/L285/L295/L305/L345/L355 Shop Manual Blueprint-Vault

Serial-Range: 1976-1985 // Technical-Benchmarks: L185 / L235 / L245 / L275 / L285 / L295 / L305 / L345 / L355 // Component-Focus: Engine and Transmission

Component Value Validation-Data
Engine Make Kubota General Data
Bore 76 mm (3 in.) Standardized Measurement
Displacement 743 cc (45.3 cu.in.) Engine Specification
Compression Pressure 3,235 kPa (470 psi) Tune-Up Value
Rated Power at Pto Shaft 11.5 kW (15.45 HP) Performance Metric
Crankshaft Main Journal Diameter 51.921–51.940 mm (2.0441–2.0449 in.) Component Dimension

Documentation sections include troubleshooting, engine components, front axle, hydraulic system, steering system, transmission, and detailed wiring diagrams for comprehensive tractor operation. The manual covers practical maintenance procedures for a wide range of systems, ensuring optimal performance and longevity. This guide details specific torque specifications for engine components to ensure proper service interval reliability.

The document includes coverage of the engine and its major components, providing detailed R&R procedures and exploded views. Brake system specifications are included for various models, outlining adjustment and maintenance steps. Safety procedures are documented throughout the manual to ensure user protection during all operations. Fluid capacities are listed for all transmission and hydraulic systems, simplifying fluid replacement. Tool requirements are listed for specialized tasks, ensuring users have the necessary equipment.

FAQ

Specify the lubrication requirements for the front axle assembly. keyboard_arrow_down

For front axle assemblies, lubrication is required for the pivot pin and bushings, with a diametral clearance between the pivot pin and bushings not exceeding 0.5 mm (0.020 inch). SAE 90 gear oil is recommended for the front axle and differential case.

What is the exact injection pressure for these Kubota tractors? keyboard_arrow_down

13720–14700 kPa (1990–2135 psi) is the injection pressure specified for these tractor models, which defines the injection system threshold.

Calculate the specific valve clearance for the engine. keyboard_arrow_down

The valve clearance for intake and exhaust valves should be set between 0.18–0.22 mm (0.007–0.009 inch) while the engine is cold to ensure proper valve operation and prevent piston-to-valve contact.

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Reviews (2)

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New
This manual is incredibly detailed and easy to follow. I was able to tackle some complex repairs on my L285 without any issues. Highly recommend for anyone needing guidance!
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The download process was smooth, receiving the link via email was fast. The manual itself is very comprehensive and has helped me maintain my L355 effectively. Great customer service!