Case IH 1250, 1350 Grinder Mixer Service Pdf Manual

Case IH 1250, 1350 Grinder Mixer Service PDF Manual

Feed consistency starts long before livestock reach the feed bunk. Inside the Case IH 1250 and 1350 Grinder Mixers, grain is crushed by the hammer mill, lifted through the mixing auger, blended with supplements, and discharged as a uniform ration in one continuous process. If the hammer rotor loses balance, the unloading auger slows, or the mixing flighting wears unevenly, feed quality quickly suffers and valuable time is lost. This OEM Factory Service PDF Manual gives technicians and farm workshops the factory procedures required to inspect, repair, rebuild, and fine-tune every major system of these high-capacity grinder mixers using official Case IH workshop methods.

Unlike a tractor where the focus is engine performance, a grinder mixer depends on the perfect relationship between the hammer mill, mixing chamber, PTO driveline, auger assemblies, and unloading system. This manual follows the complete feed-processing cycle so mechanics can diagnose performance problems logically, beginning with material entering the mill and ending with the finished ration leaving the discharge auger.

Keep Feed Quality Consistent Throughout Every Batch

A grinder mixer that produces uneven particle size or poorly blended feed can affect livestock performance long before a mechanical failure becomes obvious. This workshop manual explains how to measure hammer wear, inspect grinding screens, verify rotor condition, adjust auger clearances, and restore correct mixing efficiency using factory specifications instead of guesswork. The result is a machine capable of producing uniform feed mixtures day after day.

Factory Workshop Procedures Included

• Complete hammer mill overhaul including rotor inspection, hammer replacement, screen servicing, and bearing adjustments
• Mixing tank servicing with auger flight inspection, paddle repairs, wear measurements, and blending system adjustments
• PTO driveline diagnostics covering gearbox servicing, universal joints, slip clutch inspection, and driveline alignment
• Unload auger rebuilding including flighting inspection, folding mechanism repairs, discharge tube servicing, and operational adjustments
• Hydraulic cylinder servicing, hose replacement, valve inspection, and pressure diagnostics for hydraulic-equipped models
• Drive chain replacement, sprocket alignment, pulley servicing, belt tension adjustments, and power transmission repairs
• Wheel hub maintenance, axle inspection, hitch servicing, and transport frame repairs
• Electrical troubleshooting covering lighting circuits, safety switches, connectors, and OEM wiring diagrams
• Factory wear limits, service measurements, torque specifications, lubrication charts, and troubleshooting procedures
• Exploded assembly illustrations, mechanical layouts, hydraulic schematics, and complete workshop overhaul instructions

Designed for Livestock Operations That Cannot Afford Downtime

Whether preparing dairy rations, finishing beef cattle, feeding sheep, or mixing grain for swine operations, dependable feed preparation is critical every day of the year. This OEM service manual helps technicians rebuild worn grinding components, restore mixing efficiency, eliminate driveline vibration, and maintain smooth unloading performance so the grinder mixer returns to reliable daily operation with confidence.

Frequently Asked Questions

After installing a new set of hammers, the grinder vibrates noticeably above PTO speed. Does this manual explain how to identify whether the problem is rotor balance or incorrect hammer installation?

Yes. The manual provides inspection procedures for rotor balance, hammer installation patterns, spacer placement, bearing condition, and shaft alignment so vibration can be traced to its actual source before major damage occurs.

The feed appears thoroughly ground, but mineral supplements remain unevenly distributed throughout the batch. Can this manual help improve mixing quality?

Absolutely. Factory procedures explain mixing auger inspection, flight wear measurement, tank component adjustment, mixing sequence verification, and internal clearances that directly influence feed uniformity.

My unloading auger stalls only when the mixer is nearly full. Is there a dedicated diagnostic procedure for this type of fault?

There is. The workshop manual guides technicians through auger flight inspection, gearbox load checks, discharge tube alignment, PTO driveline testing, and hydraulic system evaluation to isolate overload conditions under full-capacity operation.

Can I rebuild the PTO gearbox without disturbing the rest of the grinding system?

Yes. The manual includes step-by-step gearbox removal, gear inspection, bearing preload adjustment, seal replacement, driveline alignment, and operational verification while maintaining the correct relationship with the hammer mill drive.

Why is this manual more useful than a general agricultural equipment repair guide?

Because it focuses exclusively on the Case IH 1250 and 1350 Grinder Mixers, explaining the interaction between the hammer mill, mixing auger, unloading system, PTO driveline, and feed-processing components using official OEM repair procedures developed specifically for these machines.