Case 1021G 1121G Tier 2 Wheel Loader Service Manual 2018

Description

File Details

• Manual Type: Service Manual
• Brand: Case Construction
• Models Covered: 1021G ZBAR – EH, NEW CAB TIER2; 1121G ZBAR – EH, NEW CAB TIER2
• Publication Number: 48083742
• Date: July 2018
• Language: English
• Page Count: 2233
• File Format: PDF
• Publisher: CNH Industrial Italia S.p.A.

Chapters Covered

• Engine (10): Engine and crankcase, fuel tanks, air cleaners and lines, engine cooling system, fan and drive, aftercooler, engine lubrication system
• Transmission (21): Powershift transmission, external controls, hydraulic components, internal components
• Four-Wheel Drive System (23): Drive shaft
• Front Axle System (25): Powered front axle, front bevel gear set and differential, final drive hub, steering knuckles, and shafts
• Rear Axle System (27): Powered rear axle, rear bevel gear set and differential, planetary and final drives
• Brakes and Controls (33): Hydraulic service brakes, parking brake or parking lock
• Hydraulic Systems (35): Hydraulic systems, reservoir, cooler and filters, variable displacement pump, main control valve, pilot system, remote control valves, hydraulic fan drive cooling system, front loader arm hydraulic system, front loader bucket hydraulic system
• Frames and Ballasting (39): Frame
• Steering (41): Steering control, hydraulic control components, cylinders, auxiliary steering
• Wheels (44): Front wheels, rear wheels
• Cab Climate Control (50): Heating, air conditioning
• Electrical Systems (55): Harnesses and connectors, engine starting system, alternator, cab controls, HVAC control system, loader arm and bucket control system, camera, wiper and washer system, fault codes (DTC)
• Front Loader and Bucket (82): Arm, bucket
• Platform, Cab, Bodywork, and Decals (90): Cab, protections and footboards, mechanically-adjusted operator seat, pneumatically-adjusted operator seat, machine shields and guards

The Case 1021G 1121G Tier 2 Wheel Loader Service Manual is a complete 2233-page technical resource covering every major system on these machines. Beyond the chapter breakdown above, this manual includes detailed removal and installation procedures, disassembly and assembly instructions, hydraulic and electrical schematics, diagnostic trouble code (DTC) descriptions with troubleshooting steps, torque specifications, service limits, special tool references, and complete technical data for both the 1021G and 1121G models. The engine section alone covers the full lubrication system, cooling system, aftercooler, fuel tanks, and air cleaners. The transmission chapter covers the complete powershift transmission including clutch plate thicknesses, pressures, and internal component procedures. The electrical section is particularly comprehensive, with over 100 pages of wiring schematics, component diagrams, and fault code diagnostics covering everything from the engine control unit to the rear camera system. Hydraulic coverage includes the variable displacement pump, main control valve, pilot system, fan drive cooling circuit, and complete loader arm and bucket hydraulic systems. Whether you are diagnosing a fault code, rebuilding a component, or performing routine maintenance, this Case 1021G 1121G Tier 2 Wheel Loader Service Manual provides the specifications and procedures needed to complete the job correctly.

What This Manual Enables You to Do

This Case 1021G 1121G Tier 2 Wheel Loader Service Manual gives you the full scope of factory-derived repair and diagnostic information for both models. You can:

• Remove, disassemble, inspect, assemble, and install the engine, transmission, axles, brakes, hydraulic pumps, control valves, cylinders, and steering components.
• Diagnose fault codes across the entire machine using the comprehensive DTC troubleshooting section, which includes control module context, cause, possible failure modes, and step-by-step solutions for each code.
• Reference hydraulic and electrical schematics to trace circuits, understand system operation, and locate test ports and connectors.
• Perform maintenance tasks with confidence using the technical data, capacities, and torque values provided for each system.
• Understand machine orientation, component identification, and system function descriptions to aid in efficient service.

Why Correct Procedures and Specifications Matter

Modern wheel loaders like the Case 1021G and 1121G Tier 2 are complex machines with tightly integrated hydraulic, electrical, and powertrain systems. Using incorrect torque values, failing to follow the correct disassembly sequence, or missing a diagnostic step can lead to component damage, repeat failures, or unsafe operating conditions. This manual supplies the exact procedures, pressures, clearances, and settings specified by the manufacturer. The DTC section is especially valuable for technicians working with the machine’s control modules, as it provides the context and failure modes behind each code, helping you isolate the root cause rather than replacing parts by guesswork.

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Instant PDF Delivery

The Case 1021G 1121G Tier 2 Wheel Loader Service Manual is delivered as a PDF file immediately after purchase. There is no shipping and no waiting for a physical book. You can access the manual from any device — laptop, tablet, or smartphone — and print any pages or sections you need for the workshop. The PDF format allows you to quickly navigate to the section you need, whether you are in the middle of a transmission rebuild, diagnosing an electrical fault, or looking up a hydraulic pressure specification.