CASE 521E Tier 3 Wheel Loader Service Manual (84243970)

This official CASE service manual provides professional repair and maintenance procedures for the CASE 521E Tier 3 Wheel Loader. It includes sections for electrical and hydraulic troubleshooting, engine removal, brake systems, powertrain components, steering assemblies, and mounted A/C and cab systems.

Model Covers:

CASE 521E Tier 3 Wheel Loader

Note: If your equipment is an earlier 521E model without Tier 3 emissions components or advanced control options, refer to the CASE 521E Loader Service Manual (84186213) for standard servicing procedures.

File Format: PDF

Size: 119.30 MB

No. of pages: 896

Language: English

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

📑 Table of Contents Overview:

General

• Standard torque specifications
• Fluids and lubricants
• Metric conversion chart

Engines

• Engine and radiator removal and installation
• Stall tests and after cooler procedures
• Note: Engine repair procedures in separate manual 87630273

Fuel System

• Note: Fuel system procedures in separate manual 87630273

Electrical

• Starter and alternator removal and installation
• Battery and instrument cluster service
• Specifications and troubleshooting

Steering

• Component removal and installation
• Steering cylinders, center pivot, auxiliary pump
• Joystick Steering System (JSS)

Power Train

• Transmission removal, pressure checks and specs
• Front/rear axle, drive shafts, control valve
• Wheels and tires

Brakes

• Hydraulic and parking brake systems
• Brake accumulators and pump service

Hydraulics

• Hydraulic component servicing and system cleaning
• Control valves, cylinders, coupler solenoid valve
• Ride control accumulator and valve

Mounted Equipment

• A/C troubleshooting and heater components
• Loader frame, ROPS cab and glass installation

This CASE 521E Tier 3 Loader Service Manual is the essential technical resource for certified CASE mechanics and advanced operators maintaining Tier 3 emissions-compliant models.