Models Covered:
Zetor 3320, Zetor 3340, and potentially other closely related models within the 33xx/63xx series (e.g., 3320 Turbo, 3340 Turbo, 6320, 6340 - exact range confirmed by manual content)
Estimated Page Count:
Detailed page count not provided, but service manuals for this class of tractor are typically extensive, ranging from 500 to 1500+ pages.
Type:
Repair Service Manual / Workshop Manual
Engine Overhaul:
Yes (Disassembly, inspection, repair, reassembly, specifications)
Fuel System:
Yes (Injection pump, injectors, fuel lines, filters, troubleshooting)
Cooling System:
Yes (Radiator, thermostat, water pump, hoses, fan)
Lubrication System:
Yes (Oil pump, oil filter, lubrication passages, oil pressure)
Ignition System:
Typically not applicable for diesel engines of this era, but electrical system diagnostics may cover starting circuit.
Transmission Gearbox:
Yes (Manual transmission, powershift/synchronizer details, repair procedures)
Clutch:
Yes (Single/dual clutch operation, adjustment, replacement)
Power Take Off Pto:
Yes (PTO engagement, shaft, gearbox, troubleshooting)
Hydraulic System:
Yes (Hydraulic pump, valves, cylinders, control unit, filters, troubleshooting)
Steering System:
Yes (Mechanical steering, power steering system, components, troubleshooting)
Braking System:
Yes (Brake types, master cylinder, slave cylinders, adjustment, maintenance)
Electrical System:
Yes (Wiring diagrams, starter motor, alternator, battery, lighting, sensors, troubleshooting)
Front Axle 4Wd:
Yes (For 4WD models like 3340/6340 - components, maintenance, troubleshooting)
Operator Station Cab:
Yes (Controls, dashboard, seating, basic cab maintenance)
Bodywork Chassis:
Yes (Frame, fenders, hoods, attachment points)
Preventative Maintenance:
Yes (Lubrication points, fluid changes, filter replacements)
Routine Service:
Yes (Daily checks, weekly inspections)
Disassembly Assembly:
Yes (Detailed step-by-step for major components)
Troubleshooting:
Yes (Diagnostic charts, common problems and solutions)
Repair Techniques:
Yes (Specific repair methods for various parts)
Cleaning Procedures:
Yes (Component cleaning before inspection/assembly)
Reinstallation Procedures:
Yes (Correct installation methods)
Depth:
Comprehensive (Covers from basic maintenance to full component overhaul and diagnostics)
Engine Type:
Likely Turbocharged Diesel Engine (Specific engine model for each tractor variant will be detailed within the manual, e.g., Zetor's own engine lines).
Horsepower Range:
Typically in the 35-65 HP range for this series (e.g., 3320 ~35-40 HP, 6340 ~60-65 HP). Exact figures are model-specific and detailed in the manual.
Torque Specifications:
Specific torque values for critical engine components and assemblies will be provided.
Injection Type:
Direct Injection, likely with mechanical injection pumps (e.g., Zetor's own or other reputable manufacturers like Bosch or Simms).
Cylinder Block:
Details on material, cylinder bore, and honing specifications.
Pistons Rings:
Specifications for piston diameter, ring end gap, and skirt clearance.
Connecting Rods Bearings:
Torque specifications, bearing clearance, and inspection procedures.
Crankshaft:
Main bearing journal specifications, connecting rod journal specifications, and runout tolerances.
Cylinder Head:
Valve seat angles, valve stem seals, valve guide wear, cylinder head flatness, and torque sequence for head bolts.
Camshaft:
Lobe lift, duration, timing specifications, and bearing journal clearance.
Fuel Injection Pump:
Timing, delivery calibration, and overhaul procedures.
Glow Plugs:
Specifications and testing procedures.
Type:
Manual Transmission (Likely a 9-speed or 12-speed gearbox, potentially with creeper gears).
Powershift:
While not standard, some advanced Zetor models of this era might have offered powershift or shuttle shift options. Manual will specify if applicable to these models.
Gear Selection:
Detailed diagrams and procedures for selecting and engaging gears.
Transmission Fluid:
Specific fluid type (e.g., SAE 80W-90 GL-4 or GL-5 gear oil), capacity, and change intervals.
Synchronizers:
Inspection, wear limits, and replacement procedures.
Gears Shafts:
Inspection for wear, damage, and bearing specifications.
Overall Length:
Specific dimensions are model-dependent but typically around 3.5-4 meters for this tractor class. Manual will provide exact figures.
Overall Width:
Varies based on tire configuration, but typically around 1.7-2.0 meters. Manual will provide exact figures.
Wheelbase:
Specific wheelbase for 2WD and 4WD variants will be detailed in the manual.
Operating Weight:
Typically in the range of 1800-2500 kg, depending on configuration and presence of a cab. Manual will provide exact weights.
Ground Clearance:
Minimum ground clearance will be specified in the manual for different configurations.
Rollover Protection Structure Rops:
Standard on most tractors of this era, likely a safety frame or integral cab. Manual will detail its inspection and maintenance.
Parking Brake:
Mechanical parking brake system; procedures for adjustment and ensuring engagement.
Seat Belt:
If equipped with a cab, seat belt maintenance and inspection.
Lighting System:
Headlights, taillights, turn signals, and work lights; wiring and bulb replacement procedures.
Engine Oil Change:
Typically every 250-500 operating hours. Manual will specify exact interval and oil type.
Hydraulic Fluid Change:
Generally every 500-1000 operating hours. Manual will specify exact interval and fluid type.
Fuel Filter Replacement:
Recommended at regular intervals (e.g., 250 hours) or as needed. Manual will provide specific part numbers and intervals.
Air Filter Cleaning Replacement:
Based on operating conditions, manual will provide cleaning and replacement intervals.
Engine Oil Type:
Typically API CD or CE rated Diesel Engine Oil, with viscosity like 15W-40. Manual will confirm specific Zetor recommendations.
Hydraulic Fluid Type:
Likely a high-quality tractor hydraulic fluid (e.g., UTF - Universal Tractor Transmission fluid) or ISO VG 46 Hydraulic Oil. Manual will specify.
Coolant Type:
Ethylene Glycol based antifreeze with corrosion inhibitors. Manual will specify the correct mixture ratio and type.
Transmission Gear Oil:
SAE 80W-90 GL-4 or GL-5 gear oil for the gearbox and rear differential. Manual will confirm specifications.
Common Wear Items:
Clutch wear, hydraulic pump efficiency loss, PTO seal leaks, and potential injector pump calibration drift are common in tractors of this age. Manual will provide diagnosis and repair.
Electrical Gremlins:
Corrosion on electrical connectors and aging wiring can lead to intermittent issues. The wiring diagrams in the manual are crucial for troubleshooting.
Manufacturer:
Zetor Tractors, a well-established Czech Republic manufacturer known for robust and reliable agricultural machinery.
Series Context:
The 3320-6340 series represents a mid-range offering from Zetor, designed for general agricultural tasks. These models built upon Zetor's legacy of simpler, durable tractors.
Typical Production Years:
Likely produced from the late 1990s through the early 2000s, though specific year ranges will be critical to confirm within the manual.
