Case IH Axial-flow 5150, 6150, 7150 Combine Pdf Service Repair Manual (Tier 4b Final)

Case IH Axial-Flow 5150, 6150, 7150 Combine PDF Repair Service Manual (Tier 4B Final) (PIN YJG016001 & Up) 2019

Every harvested grain kernel passes through dozens of mechanical and hydraulic components before it reaches the grain tank. From the feeder housing that accepts the crop, to the single-rotor threshing system, cleaning shoe, grain elevators and unloading auger, every assembly must work in perfect harmony to maximise grain quality while reducing losses. The Case IH Axial-Flow 5150, 6150 and 7150 combines were engineered around this philosophy, combining high-capacity harvesting with the simplicity of the legendary single-rotor design.

When performance begins to decline, the cause is rarely limited to a single component. Reduced rotor efficiency, uneven cleaning, poor grain sample quality, hydraulic pressure variations or electronic sensor faults can all affect harvesting results. This OEM Factory Repair Service Manual has been developed specifically for the 2019 Tier 4B Final Case IH Axial-Flow 5150, 6150 and 7150 combines beginning with PIN YJG016001. It provides dealership-level repair procedures covering diagnostics, inspection, adjustment, overhaul and calibration for every major harvesting, hydraulic, drivetrain and electronic system used throughout the machine. The official publication (Part No. 51610174, 1st Edition, March 2019) includes extensive service information organized by machine systems.

Machine Specifications

Why Rotary Combines Require A Different Repair Strategy

Unlike conventional straw walker combines, the Axial-Flow platform performs threshing and crop separation through a single longitudinal rotor. Crop flow, rotor speed, concave adjustment, cleaning fan performance and sieve settings all influence harvesting efficiency. During workshop diagnosis, technicians evaluate crop flow components, hydraulic drives, rotor operation and electronic monitoring systems before dismantling major assemblies.

The service manual mirrors this professional workflow by guiding technicians through systematic inspection, measurements, adjustment procedures and component overhaul before final operational verification. This approach minimizes downtime during harvest while helping maintain grain quality and throughput under varying field conditions. Case IH designed the Axial-Flow 150 Series around its proven single-rotor architecture, Cross Flow cleaning system and simplified driveline to improve productivity and serviceability.

OEM Workshop Coverage

Examples Of Dealer-Level Repairs

• Measuring hydrostatic system pressure before replacing drive components.
• Inspecting rotor wear after harvesting abrasive cereal crops.
• Adjusting concave clearances to improve threshing quality.
• Testing cleaning fan performance when grain loss increases.
• Diagnosing clean grain elevator drive problems under heavy crop loads.
• Tracing electronic sensor faults affecting harvest monitoring systems.
• Inspecting unloading auger drive assemblies following high-hour operation.
• Checking feeder chain alignment before replacing feeder components.
• Verifying hydraulic response after valve or pump replacement.
• Completing post-repair harvesting performance checks before returning the combine to the field.

Manual Specifications

Frequently Asked Questions

Which combine models are covered by this manual?

This service manual covers the 2019 Case IH Axial-Flow 5150, 6150 and 7150 Tier 4B Final combines beginning with PIN YJG016001 and above.

Does the manual include rotor and threshing system repairs?

Yes. It provides complete service procedures for the rotor, concaves, threshing components, crop flow system and related adjustments.

Are hydraulic and hydrostatic drive diagnostics included?

Yes. Factory hydraulic pressure testing, hydrostatic drive diagnostics, pump servicing and troubleshooting procedures are included.

Does it cover the cleaning and grain handling systems?

Yes. The manual contains repair procedures for the Cross Flow cleaning system, fan assemblies, sieves, grain elevators, unloading system and residue management components.

Who is this repair manual intended for?

It is designed for Case IH dealership technicians, professional combine repair workshops, agricultural fleet maintenance teams and experienced owners performing advanced repairs.