Case 586 Forklift (Base Model) – Parts, Specs & Serial Numbers

Description:

The Case 586 Forklift is the base platform for one of Case’s most successful lines of rough terrain forklifts, preceding the lettered models like the 586C, 586D, 586E, 586G, and 586H. Designed for heavy-duty lifting in construction, lumber, and industrial applications, the original 586 delivers a 6,000 lb lift capacity, reliable mechanical controls, and rugged performance on off-road terrain.

Though early Case 586 models vary by year and minor spec revisions, they generally feature a powerful Case diesel engine, power shuttle transmission, and a two- or three-stage mast with tilt and optional side-shift. It remains a go-to model for operators who value mechanical simplicity and proven durability.

Specifications:

Engine:

• Model: Case 4-390 or earlier Case diesel (depending on year)

• Displacement: 239 cu in (3.9L)

• Horsepower: ~74 HP @ 2200 RPM

• Fuel Type: Diesel (naturally aspirated)

• Fuel Capacity: ~30 gallons

• Cooling System: Liquid-cooled

Transmission:

• Type: Power shuttle transmission (torque converter)

• Speeds: 4 forward / 4 reverse

• Drive Type: 2WD standard, 4WD optional in later years

Hydraulic System:

• Flow Rate: ~19–21 GPM

• System Pressure: ~2,500 psi

• Control: Mechanical levers

• Functions: Lift, tilt, optional side shift

Performance:

• Lift Capacity: 6,000 lbs @ 24" load center

• Lift Height: ~22 feet (mast dependent)

• Mast Tilt: 15° forward / 10° back

• Drawbar Pull: ~9,000 lbs

Dimensions:

• Operating Weight: ~13,000–14,000 lbs

• Wheelbase: ~88 inches

• Ground Clearance: ~13–14 inches

• Turning Radius: ~14 feet

Maintenance Essentials:

• Filter Kits: Replace oil, hydraulic, and fuel filters at regular intervals. Shop Case 586 Filter Kits

• Hydraulic Seals: Lift and tilt cylinders are common wear points. Browse Cylinder Seal Kits

• Brakes: Typically wet disc brakes; Order brake seals and components

• Transmission Seals: High-hour units may leak at shuttle input/output. Find Power Shuttle Kits

Common Issues & Quick Fixes:

• Transmission Slipping or No Movement: Caused by low fluid, worn clutches, or shuttle solenoid issues.

• Lift Cylinder Leak or Drift: Replace piston and rod seals using hydraulic seal kits

• Brake Fade: Caused by seal failure or contaminated fluid in wet disc system.

• Steering Stiffness: Orbitrol unit or steering priority valve may need rebuild.

Serial Number Location:

• Tag Location: Left side of machine frame behind front tire or near the operator’s station

• Format: Typically starts with "JJG" followed by a six-digit number (e.g., JJG002513)

Pro Tip:

The early Case 586 shares major components with later C and D series forklifts, especially in hydraulic and transmission systems. If you’re unsure of your model year, use your serial number to verify compatibility before ordering parts.