Description:
Serial Number Location:
For Case 850E models (manufactured from 1987 to 1990), the serial number plate is typically located on the left side of the main frame, near the front of the machine, just behind the blade lift cylinder or beneath the operator’s platform. Always verify the serial number before ordering parts, as the 850E introduced significant changes in the transmission and hydraulics compared to the 850C.
Key Specifications
Years Manufactured: 1987 – 1990
Engine Model: Case 6-590 6-cylinder diesel
Net Horsepower: 80 HP @ 2,100 rpm
Displacement: 359 cu in (5.9 L)
Transmission Type: Powershift, 3-speed forward / 3-speed reverse
Hydraulic Flow Rate: Approx. 23 gal/min
Hydraulic Pressure: 2,400 psi
Operating Weight: Approx. 17,500 lbs
Blade Capacity: 2.5 – 3.0 cubic yards
Top Travel Speed: 6.2 mph
Dimensions (L×W×H): Approx. 14.9 ft × 7.1 ft × 9.2 ft
Performance & Design Highlights
Reliable Powertrain: The 6-cylinder Case 6-590 engine delivers smooth, consistent power across all jobsite conditions with improved torque over prior models.
Powershift Transmission: 3-speed forward and reverse powershift provides fast direction changes and reduced operator fatigue in grading and clearing applications.
Versatile Blade Options: Available with straight, angle, or 6-way PAT blades to suit varied jobsite requirements.
Durable Undercarriage: Steel track frame with adjustable tensioners and sealed rollers ensures long wear life.
Improved Operator Station: Easier-to-reach controls, side-mounted levers, and better cab visibility compared to the 850C.
Routine Maintenance
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Engine Oil & Filter: Change every 250 hours
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Transmission Oil & Filter: Replace every 500 hours
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Hydraulic Fluid & Filter: Change every 1,000 hours
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Fuel Filters: Replace every 250 hours
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Air Filters: Inspect every 100 hours; replace as needed
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Final Drives: Check oil every 100 hours; change every 1,000 hours
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Grease Points: Lubricate blade pivot, equalizer bar, and idlers daily
Common Issues & Fixes
Blade Drifting Down: Typically caused by worn seals in the blade lift cylinders—install a hydraulic seal kit and inspect rod ends for pitting.
Transmission Not Shifting Smoothly: Can result from worn shift solenoids or internal clutch wear—inspect clutch packs and calibrate shift pressures.
Steering Clutch Slippage: Caused by worn clutch discs or oil contamination—inspect steering clutch housing and replace friction discs.
Undercarriage Noise or Wear: Check for worn track pads, dry rollers, or loose sprockets—tighten hardware and replace damaged components.
Engine Surging or Fuel Delay: Often traced to restricted fuel filters or faulty injection pump—replace filters and inspect fuel lines for leaks.
Brake Pedal Hard or Weak: May be caused by low brake fluid or worn band brakes—adjust pedal linkage and replace brake linings if needed.
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