CASE 521G Stage IV Wheel Loader Service Manual (51428203)

Comprehensive service manual for the CASE 521G Stage IV Wheel Loader, covering Z-BAR EH, XT EH, and XR EH configurations with Tier 4B (Stage IV) emissions technology. Includes full documentation of SCR and EGR systems, CAN-bus diagnostics, hydraulic pilot control systems, and camera-enabled cab features for European models.

Model Covers:

CASE 521G Z-BAR EH Stage IV Wheel Loader
CASE 521G XT EH Stage IV Wheel Loader
CASE 521G XR EH Stage IV Wheel Loader
Engine: F4HFE413N*B001
Region: Europe

Note: This manual covers European CASE 521G Stage IV wheel loaders with localized emissions systems and control logic. It includes complete diagnostics, wiring schematics, calibration workflows, and subsystem breakdowns for SCR, EGR, and engine management modules aligned to EU Stage IV compliance.

If you are working on North American Tier 4B Final equipment featuring EH control systems, camera logic, pilot hydraulics, or CAN-integrated HVAC, refer to
👉 CASE 521G Tier 4B Final Manual 51428262
or the base Tier 4B service version 👉 48083735.

For mechanical models without emissions modules, including early production units, consult
👉 CASE 521G Tier 2 Manual 48083739.

For part identification, assemblies, and loader-specific subcomponents, use the official
👉 CASE 521G Tier 4B Parts Catalog.

If you are using the alternate Stage IV service configuration, see also
👉 48082189.

File Format: PDF

Size: 104.81 MB

No. of pages: 2833

Language: English

Delivery Method: Instant Download - Access your file immediately after purchase.

📑 Table of Contents Overview:

Engine & Emissions

• Engine block, crankcase, aftercooler, SCR treatment, EGR electrical systems
• Fuel tank, air intake, cooling fan and aftercooler, lubrication

Transmission & Powertrain

• Powershift transmission external and internal components
• Front/rear axles, bevel gears, differentials, planetary hubs
• 4WD system, drive shafts

Brakes & Steering

• Hydraulic service and parking brakes
• Steering valve, cylinders, auxiliary steering control

Hydraulic System

• Pilot circuits, loader/bucket circuits, hydraulic fan, reservoir and filters
• Quick coupler hydraulics, ride control, pressure settings

Cab & Climate Control

• ROPS/FOPS cab, pneumatic/mechanical seat adjustment
• Full HVAC system with electrical and control panel diagnostics

Electrical System

• Main harnesses, camera, cab control, lighting, fault code mapping
• Starter, alternator, battery, SCR and EGR logic modules

Mounted Equipment

• Loader arms and bucket, tool couplers, decals and guards

Schematics

• Electrical Schematic
• Hydraulic Schematic

This CASE 521G Stage IV Service Manual is essential for technical personnel working on EU-compliant models with advanced emission and control systems.