Case 621E Wheel loader Repair & Service Manual

Complete service manual with electrical wiring diagrams for Case 621E Wheel loader, with all the shop information to maintain, diagnostic, repair, and service like professional mechanics.

84243974 - 621E TIER 3 Wheel loader Service Manual.pdf

MAIN SECTIONS

    General
    Section Index – General
    Standard Torque Specifications
    Fluids and Lubricants
    Metric Conversion Chart
    Engines
    Section Index – Engines
    Engine and Radiator Removal and Installation
    Stall Tests
    After Cooler
    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
    Batteries
    Instrument Cluster
    Steering
    Section Index – Steering
    Removal and Installation of Steering Components
    Steering Specifications, Pressure Checks, and Troubleshooting
    Steering Cylinders
    Center Pivot
    Auxiliary Steering Motor and Pump
    Joystick Steering
    Power Train
    Section Index – Power Train
    Removal and Installation of Power Train Components
    Transmission Specifications, Pressure Checks, and Troubleshooting
    Transmission
    Front Axle
    Rear Axle
    Rear Axle, Serial Number N8F203848 and After
    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 Pump
    Brake Accumulators
    Parking Brake
    Hydraulics
    Section Index – Hydraulics
    How to Read Hydraulic Schematics
    Removal and Installation of Hydraulic Components
    Hydraulic Specifications, Troubleshooting, and Pressure Checks
    Cleaning the Hydraulic System
    Hydraulic Pump
    Loader Control Valve
    Cylinders
    Coupler Solenoid Locking Valve
    Ride Control Accumulator
    Ride Control Valve
    Mounted Equipment
    Section Index – Mounted Equipment
    Air Conditioning Troubleshooting and System Checks For Systems with HFC-
    134a Refrigerant
    Air Conditioner System Service
    Removal And Installation Of Air Conditioning And Heater Components
    Loader
    Roll Over Protective Structure (ROPS), Cab Structural Frame (CSF)
    Cab Glass Installation
    Electrical Schematic Foldouts and Hydraulic Schematic Foldout

621 E Wheel Loader Service Manual 84243974 (Replaces 87634756)
Table of Contents
General
Section Index - General
Standard Torque Specifications
Fluids and Lubricants
Metric Conversion Chart
Engines
Section Index - Engines
Description
Engine and Radiator Removal and Installation
Stall Tests
After Cooler
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
Batteries
Instrument Cluster
Steering
Section Index - Steering
Removal and Installation of Steering Components
Steering Specifications, Pressure Checks, and Troubleshooting
Steering Cylinders
Center Pivot
Auxiliary Steering Motor and Pump
Joystick Steering
Power Train
Section Index - Power Train
Removal and Installation of Power Train Components
Transmission Specifications, Pressure Checks, and Troubleshooting
Transmission
Front Axle
Rear Axle
Rear Axle, Serial Number N8F203848 and After
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 Pump
Brake Accumulators
Parking Brake
Hydraulics
Section Index- Hydraulics
How to Read Hydraulic Schematics
Removal and Installation of Hydraulic Components
Hydraulic Specifications, Troubleshooting, and Pressure Checks
Cleaning the Hydraulic System
Hydraulic Pump
Loader Control Valve
Cylinders
Coupler Solenoid Locking Valve
Ride Control Accumulator
Ride Control Valve
Section Index - Mounted Equipment
Air Conditioning Troubleshooting and System Checks For Systems with HFC-
134a Refrigerant
Air Conditioner System Service
Removal And Installation Of Air Conditioning And Heater Components
Loader
Roll Over Protective Structure (ROPS), Cab Structural Frame (CSF)
Cab Glass Installation
Electrical Schematic Foldouts and Hydraulic Schematic Foldout

Case 621E Wheel loader Repair & Service Manual