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Case 621D Wheel Loader Factory Service & Shop Manual

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US Dollar: $49.00

Complete workshop repair service manual with electrical wiring diagrams for Case 621D Wheel Loader. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Case 621D Wheeled Loader service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

5,500+ pages, bookmarked, Searchable, Printable, high quality PDF

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621D Loader Electrical Hydraulic Foldout.pdf
621D Loader Schematic.pdf

MODELS Covered

Case 621D Wheel Loader

SECTIONS covered

    General
    Engines
    Fuel system
    Electrical
    Steering
    Power train
    Brakes
    Hydraulics
    Mounted equipment

Table of Contents

Description
General
Section Index – General
Standard Torque Specifications
Fluids and Lubricants
Metric Conversion Chart
Loctite Product Chart

Engines
Section Index – Engines
Engine and Radiator Removal and Installation
Engine and Radiator Removal and Installation P I N. JEE0135501 and Above
Stall Tests
For Engine Repair See the Engine Service Manual

Fuel System
Section Index – Fuel System
For Fuel System Repair, See the Engine Service Manual

Electrical
Section Index – Electrical
Removal and Installation of Starter and Alternator
Electrical Specifications and Troubleshooting
Electrical Specifications and Troubleshooting PI N. JEE0135501 and Above
Batteries
Information and Diagnostic Center
Alternator – 65 Ampere
Alternator – 45 Ampere

Steering
Section Index – Steering
Removal and Installation of Steering Components
Steering Specifications, Pressure Checks, and Troubleshooting
Steering Control Valve
Steering Priority Valve
Steering Cylinders
Center Pivot
Auxiliary Steering Motor and Pump

Power Train
Section Index – Power Train
Removal and Installation of Power Train Components
Transmission Specifications. Pressure Checks, and Troubleshooting
Transmission
Front and Rear Axle (Early Version)
Front Axle
Rear Axle
Drive Shafts, Center Bearing, and Universal Joints
Wheels and Tires
Transmission Control Valve

Brakes
Section Index – Brakes
Removal and Installation of Brake Components
Hydraulic Brake Troubleshooting
Brake Accumulators
Parking Brake

Hydraulics
Section Index • Hydraulics
Removal and Installation of Hydraulic Components
Hydraulic Specifications, Troubleshooting, and Pressure Checks
Cleaning the Hydraulic System
Loader Control Valve
Cylinders
Coupler Solenoid Locking Valve
Pilot Pressure Accumulator and Ride Control Accumulator
Ride Control Valve
Mounted Equipment
Section Index – Mounted Equipment
Pedals and Levers
Air Conditioning Troubleshooting and System Checks For Systems with HFC-134a
Refrigerant
Air Conditioner System Service
Removal and Installation of Air Conditioning Components For Systems with
HFC-134a Refrigerant
Loader
ROPS Cab and ROPS Canopy
Cab Glass Installation

Electrical Schematic Foldouts and Hydraulic Schematic Foldout

Electrical Schematic Foldouts and Hydraulic Schematic Foldout PIN. JEE0135501 and Above

EXCERPT:
STEERING CONTROL VALVE
Removal
1. Remove the left, right, and front cab skirts, located under the cab or canopy.
2. Remove all dirt and grease from the steering control valve (5) and the area around the steering control valve (5), refer to the illustration on page 5.
3. Remove the fill cap for the hydraulic reservoir.
4. Fasten identification tags to the hoses at the steering control valve (5).
5. Disconnect the hoses from the fittings in the steering control valve (5).
6. Cap or plug the fittings and hoses.
7. Turn the steering wheel as required for access to the cap screw (1) that holds the steering column shaft (6) of the steering control valve (5) in the coupling (2).
8. Remove the cap screw (1) that holds the steering column shaft (6) of the steering control valve (5) in the coupling (2).
9. Hold the steering control valve (5) in position and remove the bolts (7), washers (3), and steering isolator mounts (4) that fasten the base plate (11) and steering control valve (5) to the bottom of the pedestal (12).
10. Remove the steering control valve (5) and base plate (11) from the machine.
11. Remove the bolts (9) and lock washers (1 0) that fasten the base plate (11) to the steering control
valve (5).
12. Remove the base plate (11) and seals (8) from the steering control valve (5).

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