Detailed Overview of the Case 1845C Skid Steer Loader: Specifications, Features, and Operational Insights

[MikePhua]

The Case 1845C is a versatile and durable skid steer loader widely used in construction, landscaping, and industrial applications. Known for its robust performance, reliable engine, and operator-friendly design, this machine offers efficient material handling and precise control in compact workspaces.
Engine and Powertrain

• Engine Model: Case 4-390 direct fuel injection diesel
  
• Configuration: 4-cylinder, inline
  
• Displacement: 239 in³ (3.92 liters)
  
• Gross Power Output: 60 hp (45 kW) @ 2100 rpm
  
• Net Power Output: 56 hp (42 kW) @ 2100 rpm
  
• Peak Torque: 169 lb-ft (229 Nm) @ 1300 rpm
  
• Fuel Tank Capacity: 21.5 gallons (81.4 liters)
  
• Cooling System Capacity: 4.5 gallons (17 liters)
  

The engine is built to provide ample torque for demanding loader and attachment operations while maintaining efficient fuel consumption. Its direct injection system ensures responsive power delivery and reliable cold starting.
Hydraulic System

• Hydraulic Pump Flow: 16.0 gallons per minute @ 2100 rpm at 2300 psi (60.6 L/min @ 15.9 MPa)
  
• Main Relief Pressure: 2300 psi @ 120 °F (15.9 MPa @ 49°C)
  
• Reservoir Capacity: 10.5 gallons (39.8 liters)
  

The hydraulic system features a direct-drive high-capacity pump mounted on the engine crankshaft, providing fast response and sufficient flow for loader functions and attachments. This design reduces maintenance requirements and improves system reliability.
Drive and Transmission

• The loader uses a hydrostatic ground drive with two variable displacement piston pumps operating in tandem, delivering oil to independent hydrostatic motors for each drive wheel.
  
• The system offers smooth steering with precise, low-effort control.
  
• Speeds are infinitely variable up to 6.0 mph (9.7 km/h), allowing fine speed adjustments in tight work areas.
  
• A 2-stage chain reduction multiplies torque for better traction and load-handling capacity.
  
• Dynamic braking occurs when controls are returned to neutral, while a parking brake is activated by raising the seat bar.
  

Loader and Frame

• The 1845C features a heavy-duty, unitized frame with reinforced uprights and loader arms for structural integrity and durability.
  
• Loader arms have mechanical self-leveling geometry that maintains bucket level throughout lift cycles, aiding material retention in the bucket and precise dumping.
  
• An optional hydraulic self-leveling coupler is available, enabling the operator to maintain attachment leveling dynamically.
  
• The Case coupler system allows quick and easy mounting of Case and compatible attachments, enhancing versatility.
  
• The hydraulic coupler option enables the operator to link or release attachments without leaving the cab, controlled conveniently next to the throttle.
  

Lift and Payload Capacities

• Tipping Capacity (SAE rating): 3,445 lb (1,563 kg)
  
• Lift Capacity to Maximum Height: 3,135 lb (1,422 kg)
  
• Operating Load (SAE rating): 1,700 lb (771 kg)
  
• Breakout Force:
  • Tilt Cylinder: 4,690 lbf (20,862 N)
    
  • Lift Cylinder: 3,450 lbf (15,346 N)
    

Cycle Times

• Raising cycle time: 4.3 seconds with rated load
  
• Lowering cycle time (power down): 2.9 seconds
  
• Rollback time: 1.4 seconds
  
• Dump angle at maximum height: 41 degrees
  
• Dump height at maximum lift: 89.5 inches (2,273 mm)
  

These parameters reflect fast and powerful loader operation, suitable for rapid material movement and precise placement.
Dimensions and Weight

• Overall length without attachment: 101.25 inches (2,572 mm)
  
• Length with bucket on ground: 132.4 inches (3,363 mm)
  
• Height to top of ROPS: 80.25 inches (2,038 mm)
  
• Wheelbase: 40.5 inches (1,028 mm)
  
• Ground clearance: 8 inches (203 mm)
  
• Weight (operating): 6,085 lb (2,760 kg)
  
• Bucket widths available include 63 inches (1,600 mm)
  

Operator Environment

• Spacious, well-planned operator area with excellent visibility and controls that require low effort.
  
• Comfortable adjustable seat with options for 2-inch or 3-inch seat belts.
  
• Grab rails and steps aid safe ingress and egress.
  
• Instrumentation includes engine oil pressure, coolant temperature, battery voltage, alternator output, and hydraulic oil temperature gauges.
  
• Audible alarms for engine oil pressure, coolant temperature, battery voltage, and a seat belt warning enhance operational safety.
  

Serviceability

• Engine and hydraulic components are readily accessible by sliding the operator station floor forward and opening rear door uprights.
  
• Loader arms hold securely for easy service access.
  
• External chain tension adjustment is facilitated through accessible ports.
  
• Steel hydraulic and fuel reservoirs are integrated into loader uprights for ruggedness and improved cooling performance.
  
• Hydraulic filtration uses a 6-micron spin-on replaceable element with warning light for filter service.
  
• Rear-mounted direct-drive hydraulic pump requires minimal servicing.
  

Attachments and Versatility
The Case 1845C supports a wide range of compatible attachments, such as:

• Buckets: dirt, utility, light material, grading
  
• Pallet forks: enabling material handling versatility
  
• Augers, trenchers, brush cutters, and more
  

Attachment coupling systems and hydraulic options provide enhanced jobsite adaptability.
Technical Terminology Glossary

• Hydrostatic Drive: A transmission type using hydraulic fluid flow for power transmission, enabling variable speed and smooth control.
  
• Tipping Capacity: The maximum load the loader can lift without tipping forward.
  
• Breakout Force: The maximum force the loader arms can exert to break material free or lift attachments.
  
• Self-Leveling: A linkage geometry that maintains the bucket level relative to the ground during lift/lower cycles.
  
• Direct-Drive Pump: A hydraulic pump mounted directly on the engine crankshaft, increasing efficiency and reducing components.
  
• Dynamic Braking: A braking system where hydraulic resistance slows the machine when controls are returned to neutral.
  
• SAE Rating: A standardized test procedure from the Society of Automotive Engineers for capacities and forces.
  

Practical Maintenance Tips and Solutions

• Regularly inspect hydraulic hoses and fittings for leaks or wear; promptly replace damaged components.
  
• Maintain hydraulic fluid cleanliness and change filters per manufacturer intervals to prevent pump and motor damage.
  
• Perform periodic chain tension adjustments to preserve drive efficiency.
  
• Keep the cooling system clean and coolant levels adequate, especially under heavy-duty operating cycles.
  
• Lubricate loader arm pivot points to reduce wear.
  
• Verify the dynamic braking and parking brake functionality frequently for operator safety.
  
• Monitor instrument panel and alarms closely to catch early signs of mechanical stress or failure.
  

Field Story: Enhancing Productivity with the 1845C Skid Steer
In a landscaping project requiring excavation, trenching, and material relocation in tight spaces, operators reported the 1845C’s exceptional maneuverability and bucket self-leveling as key to rapid, precise work cycles. The optional hydraulic coupler allowed quick tool changes without leaving the cab, cutting task transition times. Regular scheduled maintenance, including chain tension checks and hydraulic fluid changes, kept the unit running smoothly through heavy use. One operator noted that the hydrostatic drive’s smooth operation reduced fatigue during long shifts.
Additional Considerations

• Operators should consider the 1845C for projects demanding combination of power, compact size, and attachment flexibility.
  
• Selection of attachments and coupling options can significantly increase jobsite versatility.
  
• Familiarity with hydrostatic drive dynamics and self-leveling operation benefits operator control and efficiency.
  

The Case 1845C skid steer loader blends power, versatility, ease of operation, and rugged design to serve diverse industries. Its operator-focused features and reliable components make it a durable machine for material handling, earthworks, and accessory-driven tasks.

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Summary List of Case 1845C Key Specifications and Features

• Engine: Case 4-390, 4-cylinder diesel, 60 hp at 2100 rpm
  
• Torque: 169 lb-ft at 1300 rpm
  
• Hydraulic Flow: 16 GPM at 2300 psi
  
• Operating Weight: ~6,085 lb (2,760 kg)
  
• Max Speed: ~6.0 mph (9.7 km/h)
  
• Tipping Capacity: 3,445 lb (1,563 kg)
  
• Lift Capacity: 3,135 lb (1,422 kg)
  
• Self-Leveling Loader Arms: Mechanical type standard, hydraulic optional
  
• Loader Couplers: Quick coupler standard, hydraulic coupler optional
  
• Operating Dimensions: Length ~132 in with bucket, height ~80 in to ROPS
  
• Fuel Tank: 21.5 gallons
  
• Hydraulic Reservoir: 10.5 gallons
  
• Operator Safety: Audible alarms, seat belt warning, dynamic and parking brakes
  
• Maintenance: Easy access panels, chain adjustment ports, spin-on hydraulic filter
  

This complete overview equips operators, technicians, and fleet managers with thorough knowledge to maximize the Case 1845C’s performance, maintain reliability, and improve worksite productivity.