Target Audience:
Professional technicians, farm mechanics, owners performing their own maintenance and repairs
Value Proposition:
Provides professional-level repair and maintenance data at a fraction of the cost of official dealer manuals, with the convenience of instant digital access.
Instructional Format:
Numbered instructions, detailed sub-steps, bold figure numbers for easy illustration matching
Visual Aids:
Detailed illustrations, drawings, photos, and enlarged insets for precise part identification
Navigation:
Numbered table of contents for quick information retrieval
Primary Coverage:
Full Service Repair, Maintenance, Rebuild, Refurbish, Restoration
Estimated Page Count:
Extensive (Specific count not provided, but described as 'very detailed')
Manual Type:
Full Service Repair Manual
Delivery Method:
Instant Download
Engine Systems:
Engine overhaul, fuel system, lubrication system, cooling system, exhaust system, starting and charging system
Transmission Systems:
Gearbox overhaul, clutch, power take-off (PTO) operation and maintenance
Hydraulic Systems:
Hydraulic pump, cylinders, control valves, hydraulic fluids and maintenance
Electrical Systems:
Wiring diagrams, troubleshooting, diagnostics, lighting, starter, alternator
Chassis And Frame:
Front axle, rear axle, steering system, braking system
Body And Cab:
Operator cab, controls, instrumentation, sheet metal repair
Maintenance Procedures:
Regular servicing, lubrication points, filter changes, fluid level checks, pre-operation checks
Repair Procedures:
Step-by-step instructions for all major components and systems, including detailed sub-steps
Troubleshooting:
Diagnostic flowcharts and guides for identifying and resolving common and uncommon issues
Rebuilding Procedures:
Complete rebuild instructions for engines, transmissions, and hydraulic systems
Depth Of Information:
Comprehensive, suitable for professional technicians and experienced DIY mechanics
Diagnostic Capabilities:
Detailed diagnostic procedures for all systems, including electrical troubleshooting with wiring diagrams
Engine Family:
Perkins (Common for this era of Case tractors, likely a 4-cylinder variant)
Engine Displacement:
Typically around 3.9 Liters (236 cubic inches) for the 4-cylinder Perkins engine used in this series. Specific variant not listed, but this is a strong probability.
Horsepower Range:
Approximately 60-70 PTO horsepower, depending on specific engine tune and configuration.
Torque Characteristics:
Designed for strong low-end torque crucial for pulling agricultural implements.
Injection System:
Likely Direct Injection with a Mechanical Fuel Injection Pump (e.g., CAV or Bosch) depending on the specific engine code.
Oil Capacity:
Approximately 8-10 quarts (7.5-9.5 liters) with filter. Specific API rating for engine oil would be critical (e.g., API CE or CF).
Coolant Capacity:
Likely around 15-18 quarts (14-17 liters). Use of a 50/50 coolant/water mix is standard.
Transmission Type:
Likely a 8-speed (4 forward, 2 reverse with high/low range) or a 12-speed (Synchromesh with creeper gears) manual transmission.
Optional Transmission:
Possible availability of a powershift or creeper gear option for specific applications.
Power Take Off Pto:
Standard 540 RPM PTO, with a potential option for a 1000 RPM PTO or a 2-speed PTO (540/1000).
Transmission Fluid Type:
Typically a UTTO (Universal Tractor Transmission Oil) or similar hydraulic fluid. Referencing the manual for exact specification is crucial.
Wheelbase:
Approximately 82-86 inches (208-218 cm). This can vary with 2WD/4WD configuration.
Overall Length:
Approximately 130-140 inches (330-355 cm), excluding implements.
Overall Width:
Typically around 70-80 inches (178-203 cm) at the rear axle, depending on tire size.
Operating Weight:
Around 5,000-6,000 lbs (2268-2721 kg) for a 2WD configuration, without ballast.
Rollover Protection:
ROPS (Roll Over Protective Structure) is a standard feature or a common aftermarket addition. The manual would detail its inspection and maintenance.
Braking System:
Hydraulically actuated, wet disc brakes are common for improved stopping power and durability.
Operator Station:
Designed with operator safety in mind, including seating, controls placement, and accessibility. Manual covers safe operation procedures.
Instrumentation:
Basic analog gauges for engine temperature, oil pressure, fuel level, tachometer, and hour meter. Warning lights for critical systems.
Traction Control:
Limited or no electronic driver assistance features. Traction primarily managed by operator input and appropriate tire selection/ballasting.
Connectivity Features:
N/A (Basic agricultural machinery of its era)
Engine Oil Change:
Typically every 250 hours of operation or annually, whichever comes first. Refer to manual for precise interval.
Air Filter Replacement:
As needed, based on operating conditions and indicator, but typically checked at every oil change.
Fuel Filter Replacement:
Generally at 500-hour intervals or when issues arise with fuel delivery.
Hydraulic Fluid Change:
Typically every 1000-1200 hours, or annually, along with filter replacement.
Engine Oil Specification:
API CE or CF, SAE 15W-40 diesel engine oil is a common recommendation. Specific viscosity may vary with climate.
Hydraulic Fluid Specification:
UTTO (Universal Tractor Transmission Oil) meeting standards like John Deere J20C or Ford ESSEM-2C134-D is a frequent requirement. The manual will specify the exact Case/New Holland fluid specification.
Coolant Specification:
Ethylene glycol based antifreeze mixed with distilled water (50/50) for freeze protection and corrosion inhibition. Heavy-duty diesel coolant additives may be specified.
Common Wear Points:
Hydraulic pump wear, PTO clutch wear, front axle pivot pin wear, injector pump timing drift, electrical connector corrosion.
Starting Problems:
Can be related to glow plugs, starter motor condition, fuel system air, or battery health.
Parent Company:
Case Corporation (later part of Tenneco, eventually CNH Industrial).
Series Placement:
The 685 is part of the '80 series' of tractors, a popular and robust line that succeeded earlier models and was updated through various iterations.
Production Period:
Likely produced in the 1980s, a period of significant development in agricultural machinery.
Manufacturing Location:
Typically manufactured in facilities in North America or Europe.
