Positioning:
A vital resource for owners and mechanics of Leyland 255 and 270 tractors, enabling self-sufficiency in maintenance and repair, saving significant costs.
Comparison:
This 'Complete Workshop Service Repair Manual' offers comprehensive A-Z coverage, which is superior to owner's manuals or condensed repair guides, providing the depth required for all service needs.
Features:
Easy-to-follow step-by-step instructions, numerous pictures and diagrams, instant digital delivery, multi-device compatibility, and complete coverage of all models and engines.
Coverage:
Complete Service & Repair Procedures A-Z
Count:
Not specified, but described as 'Complete Workshop Service Repair Manual'
Type:
Workshop Service Repair Manual
Format:
Downloadable Digital File (PDF)
Engine:
Service, repair, and overhaul procedures for Leyland 4-cylinder diesel engines used in 255/270 models.
Fuel System:
Diagnosis, repair, and adjustment of fuel injection pumps, injectors, and fuel lines.
Cooling System:
Maintenance, repair, and troubleshooting of radiator, water pump, thermostat, and cooling hoses.
Lubrication System:
Oil change procedures, filter replacement, oil pump and filter housing service.
Ignition System:
Diesel glow plug system diagnostics and replacement.
Transmission:
Service and repair of the gearbox, clutch, PTO (Power Take-Off) engagement, and drivetrain components.
Hydraulic System:
Repair and maintenance of the hydraulic lift system, pump, control valves, and associated components.
Steering System:
Service and overhaul of the steering box and linkage.
Braking System:
Maintenance, adjustment, and repair of the braking system components.
Electrical System:
Wiring diagrams, troubleshooting for starting and charging systems, lighting, and instrument panel.
Chassis And Body:
Frame, front axle, rear axle housing, fenders, and operator's station service.
Maintenance:
Regular servicing, fluid changes, filter replacements, lubrication, and general upkeep procedures.
Troubleshooting:
Diagnostic flowcharts and step-by-step procedures for identifying and resolving common and uncommon issues.
Repair:
Detailed instructions for component disassembly, repair, reassembly, and adjustment.
Overhaul:
Complete engine rebuild, transmission overhaul, and hydraulic system component refurbishment procedures.
Adjustment:
Precise instructions for adjusting clutch, brakes, engine timing, and hydraulic controls.
Depth:
Comprehensive from basic maintenance to full engine and component rebuilds, suitable for home mechanics and professional technicians.
Quality:
High quality, designed for clear printing of text and images.
Binding:
Digital download, printable by user. Not a physical binding.
Paper Type:
User printable on standard paper. Original documentation printed on heavy-duty paper stock suitable for workshop environments.
Engine Type:
Leyland 4-cylinder naturally aspirated diesel engine (specific model designation like Leyland 4/98 variants may be covered).
Horsepower:
Approx. 55-60 HP (for 255), Approx. 60-65 HP (for 270) - specific figures will be detailed within the manual.
Torque:
Details on torque figures for engine components and assembly will be present.
Injection System:
Typically CAV (now Lucas CAV) or Simms fuel injection pumps. Manual will detail their service and calibration.
Cooling Method:
Water-cooled, typically via a robust radiator and fan system.
Oil Type:
Specific API service classification (e.g., CD or CE) and SAE viscosity grades (e.g., 15W-40, 20W-50) will be detailed.
Engine Codes:
The manual will likely cover specific engine codes associated with the 255 and 270 models, such as 4/98 variants.
Transmission Type:
Manual synchromesh gearbox, typically with 8 or 10 forward gears and 2 reverse gears.
Optional Features:
Some models may have had a creeper gear option or powershift units, though less common for these series. PTO speed options would be covered.
Features:
Single or dual-clutch arrangements, mechanical or hydraulic PTO engagement, differential lock.
Transmission Fluid:
Likely to specify GL-4 or GL-5 rated multi-purpose tractor oil or gear oil for the gearbox and final drives. Specific SAE viscosity will be detailed.
Wheelbase:
Typical for the era, approximate values can be found, but manual will provide precise measurements for alignment and repair.
Operating Weight:
Likely in the range of 2,000 - 2,500 kg (unladen). Specific weights for axle loading and overall vehicle will be in the manual.
Rollover Protection:
While not standard factory-fitted on early models, the manual may cover fitting of Roll Over Protection Structures (ROPS) and associated safety checks.
Braking System:
Drum brakes or disc brakes on rear axle, possibly integrated with transmission brake. Manual will detail adjustment and maintenance.
Operator Station:
Details on the operator's seat, controls layout, and safety considerations for the station.
Engine Oil Change:
Typically every 250-500 operating hours. Manual will provide precise recommendations based on duty cycle.
Fuel Filter Replacement:
Recommended at specified intervals, often tied to engine oil changes or as needed based on fuel quality.
Air Filter Maintenance:
Regular checks and cleaning/replacement based on operating conditions (dusty environments require more frequent attention).
Transmission Oil Change:
Intervals will be specified, likely around 1000-1500 hours for major changes, with regular checks for level and condition.
Hydraulic Fluid:
Specific tractor hydraulic fluid (e.g., UTF - Universal Tractor Transmission Fluid) or a suitable alternative as specified by Leyland will be detailed. Capacity also provided.
Coolant:
Type of antifreeze/coolant (e.g., ethylene glycol based) and recommended mixture ratio will be provided.
Common Problems:
Manual will likely address potential issues such as hydraulic lift problems, clutch wear, starter motor issues, and general wear and tear on components common to tractors of this age.
Bolt Torques:
Critical torque values for engine components, cylinder heads, wheel hubs, and other critical fasteners will be precisely listed.
Heritage:
Leyland Tractors (part of British Leyland) was a significant manufacturer of agricultural machinery with a long history in the UK.
Evolution:
The 200 series (including 255 and 270) represented a modern iteration of Leyland's tractor design, succeeding earlier models and competing with other manufacturers of similar horsepower tractors.
Production Period:
Likely produced from the early to mid-1970s. Specific production dates will be contextualized within the manual.
