Part of the Case Repair Manuals.
The 3394 and 3594 are Case's big power shift row-crop tractors, and when the power shift or the hydraulics act up the whole machine feels it. This is the real factory service manual, part 8-27440R0, 1,922 pages covering the 504BDT turbocharged diesel, fuel, electrical, steering, the power shift power train, brakes, hydraulics and accessories, plus a How It Works theory section. Whether you are chasing a harsh power shift, weak remote hydraulics, or an engine that smokes under load, it is here in factory order with the pressures, flows and torque values to work to.
What's Inside This Case 3394, 3594 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | Machine and Engine Specifications, Lubrication, Fluid Capacities, Standard Torque Values, General Service | |
| Engines | 504BDT Turbocharged Diesel Repair, Cylinder Head, Block, Timing, Lubrication, Cooling, Turbocharger | |
| Fuel System | Injection Pump, Injectors, Fuel Supply, Filters, Governor, Speed Settings | |
| Electrical | Wiring Diagrams, Charging and Starting, Lighting, Gauges, Instruments | |
| Steering | Hydrostatic Power Steering, Steering Pump and Valve, Cylinders, Linkage | |
| Power Train | Power Shift Transmission, Clutch Packs, Control Valve, PTO, MFD Front Drive, Final Drives, Differential | |
| Brakes | Service and Park Brakes, Brake Valves, Bleeding and Adjustment | |
| Hydraulic | Remote Hydraulic Pump, Control Valves, Three Point Hitch, Relief Settings, Reservoir | |
| Accessories | Cab, Heating and Air Conditioning, Operator Controls, Optional Equipment | |
| How It Works | System Operation and Theory for the Engine, Power Shift, Steering and Hydraulics |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine | 504BDT turbocharged diesel | |
| Rated Engine Speed | 2100 rpm | |
| Idle Speed | 725 to 775 rpm | |
| Engine Oil Pressure (warm, rated) | 45 to 60 PSI (3.1 to 4.14 bar) | |
| Engine Oil Capacity (with filters) | 21 US qt (20 L) | |
| Fuel Tank Capacity | 85 US gal (322 L) | |
| Cooling System Capacity | 44 US qt (41.6 L) | |
| Power Steering Pump Flow (at 2100 rpm) | 13 GPM | |
| Remote Hydraulic Pump Flow (at 2100 rpm) | 28 to 30 GPM (106 to 114 L/min) | |
| Remote Hydraulic Max System Pressure | 2250 PSI (155 bar) | |
| 3-Point Lift Capacity (at 24 in behind lift point) | 7,750 lb (3,515 kg) | |
| PTO Speed (at 2100 rpm) | 1000 rpm | |
| Production Years | 1983 to 1986 |
Case 3394, 3594 Common Problems This Manual Covers
Harsh or hesitant power shift from 2 to 3, 4 to 5, or during downshifts
A harsh or hanging power shift usually traces to the power shift transmission hydraulic control, a malfunction or a sticking control valve. Check the power shift pressures against spec, inspect the control valve and clutch pack operation, and verify the transmission fluid level and condition. The power train section gives the pressures, valve service and adjustment.
Manual Section: Power TrainWeak or erratic remote hydraulic power at the couplers
Weak remote hydraulics point to the pump, the relief setting or a worn control valve. Run the flow and pressure test, the pump should deliver 28 to 30 GPM with a 2250 PSI maximum system pressure, and check the relief and the fluid condition before pulling the pump. The hydraulic section covers the test points and pump service.
Manual Section: HydraulicEngine loses power or smokes under load
Power loss or heavy smoke on the turbocharged 504BDT is usually fuel delivery, an air intake restriction or a turbocharger problem. Change the fuel and air filters, check injection pump delivery and boost, and confirm the rated and idle speeds against spec. The fuel system and engine sections cover the injection pump and turbocharger service.
Manual Section: Fuel SystemFrequently Asked Questions
What does Case part number 8-27440R0 cover?
It is the full factory service manual for the Case 3394 and 3594 tractors, 1,922 pages covering the 504BDT turbo diesel engine, fuel, electrical, steering, power shift power train, brakes, hydraulics and accessories, plus a How It Works reference.
My 3394 shifts harsh from power shift 2 to 3 or hangs on downshifts, where do I start?
That harsh or hesitant power shift usually points to the power shift transmission control, a hydraulic control malfunction or a sticking valve. The power train section covers the power shift, the control valve and the pressure checks to isolate it.
What are the front axle differential torque values?
The General and Power Train sections carry the standard torque specifications and the MFD front axle service, including the differential, along with the fluid capacities for the axle and planetaries.
What is the remote hydraulic system pressure and flow?
The remote hydraulic pump flows 28 to 30 GPM at 2100 rpm with a maximum system pressure of 2250 PSI. The hydraulic section covers the pump, the relief settings and the test procedure.
Is this the same manual a Case dealer uses?
It is the factory service manual (part number 8-27440R0), the same step by step repair, specification and torque data the 3394 and 3594 were built and serviced to.
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