Case 850 Dozer – Parts, Specs

Description:

Serial Number Location:

For Case 850 Dozers (including models 850, 850B, 850C, and 850D through 850M), the serial number plate is generally found on the left side of the frame near the front of the machine, just behind the blade lift cylinder or beneath the operator platform. Always confirm the serial number before ordering parts, as engine, transmission, and hydraulic changes occurred across model generations.

Key Specifications

Years Manufactured: 1970s – Present (varies by model generation)

Engine Model (Original Case 850): Case G188D 4-cylinder diesel

Net Horsepower: Approx. 70 HP @ 2,100 rpm

Displacement: 188 cu in (3.1 L)

Transmission Type: Power shuttle or 3-speed manual (early models)

Hydraulic Flow Rate: Approx. 18 – 22 gal/min

Hydraulic Pressure: 2,000 – 2,400 psi

Operating Weight: 15,000 – 17,000 lbs

Blade Capacity: 2.0 – 2.5 cubic yards

Top Travel Speed: Up to 6.5 mph

Dimensions (L×W×H): Approx. 14.5 ft × 7 ft × 9 ft

Performance & Design Highlights

Reliable Engine Power: The original 850 model used the proven Case G188D diesel engine, delivering dependable torque for dozing, grading, and clearing operations.

Optional LGP Configuration: Low Ground Pressure track options available for soft ground or wet jobsite conditions.

Blade Configurations: Available with straight blade (S-blade), angle blade, or 6-way Power-Angle-Tilt (PAT) blade depending on the variant.

Manual or Power Shuttle Transmission: Offers flexible speed and torque control for pushing, grading, or ripping.

Durable Undercarriage: Steel track frame with segmented sprockets and adjustable track tensioners ensures long service life in harsh terrain.

Routine Maintenance

• Engine Oil & Filter: Change every 200 hours

• Transmission Fluid: Replace every 500 hours

• Hydraulic Oil & Filters: Replace every 1,000 hours

• Fuel Filters: Replace every 250 hours

• Air Filters: Inspect every 100 hours; replace when needed

• Final Drive Oil: Check every 100 hours; change every 1,000 hours

• Track Adjustment: Inspect daily; tighten with grease tensioners as needed

Common Issues & Fixes

Blade Drift or Drop: Caused by worn hydraulic cylinder seals—rebuild the blade lift or tilt cylinders using OEM seal kits.

Transmission Hesitation or Slipping: Worn clutch discs or low pressure in the shuttle system—inspect and replace as needed.

Track De-tracking on Slopes: Loose track tension or worn rollers—adjust track tension and replace damaged undercarriage components.

Slow Steering Response: Steering clutch wear or low hydraulic pressure—inspect linkages, clutch discs, and steering valve.

Engine Hard Starting: Common with older G188D engines—check glow plugs, injectors, and air intake system.

Brake Fade or No Engagement: Band brakes (early models) may need adjustment or lining replacement—access through side panels.