Kubota R420A, R520A, R420S, R520S Wheel Loader Workshop Manual

Kubota R420A, R520A, R420S, R520S Wheel Loader Workshop Manual

$35.00

Format: PDF
Language: English
Kubota R420A, R520A, R420S, R520S Wheel Loader Workshop Manual – 820 Pages
Kubota R420A, R520A, R420S, R520S Wheel Loader Service Manual – 322 Pages

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  • Table of Content
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Description

Kubota R420A, R520A, R420S, R520S Wheel Loader Workshop Service Manual

Kubota Wheel Loader Model R420A, R520A, R420S, R520S
Format: PDF
Language: English
Kubota R420A, R520A, R420S, R520S Wheel Loader Workshop Manual – 820 Pages
Kubota R420A, R520A, R420S, R520S Wheel Loader Service Manual – 322 Pages

Table of Content of the Workshop Service Manual

I GENERAL
III ENGINE
IV HYDRAULIC SYSTEM
V BRAKE SYSTEM AND POWER TRAIN
VII BACKHOE
VI ELECTRICAL SYSTEM
CONTENTS
VIII SUPPLEMENT

To ensure safety at all times, it is important to inspect and maintain the engine on a regular basis. For further safety, it is strongly recommended to periodically replace the following parts which are most essential to safe operation.
These parts tend to wear out or deteriorate with time and it is often difficult to determine their condition by periodic inspection. Therefore, even if no defect is found, they should be replaced at certain intervals to maintain their safe operation.
If any defect is found before the specified time, immediately replace or repair the part as per procedures in R420A, R520A, R420S, R520S Wheel Loader workshop service manual.

IMPORTANT INSPECTION ITEMS AFTER REASSEMBLING

a Operate the Kubota R420A, R520A, R420S, R520S Wheel Loader and check for Unusual Noise and Vibrations.
b Make Sure the Safety decals and Wire harness Clamps are in their Specified Positions.
c With the Machine Front in a Specified Posture, Check the Amount of Hydrauric Oil Checking the oil level (For further details, refer to the Wheel Loader R420A, R520A, R420S, R520S Operator’s Manual)
1) Park the machine on a level ground.
2) Make sure the hydraulic oil temperature is in the range of 10-30°C (50-86°F) and see if the oil level is within the specified zone of the oil level gauge.
3) Keep the machine front as shown as following posture.

 

  • Workshop Manual
  • SECTION 1 GENERAL INFORMATION
    Group 1 Precautions for disassembling and
    Assembling
    Group 2 Tightening Torque
    Group 3 Painting
    Group 4 Bleeding Air from Hydraulic Oil Tank
    SECTION 2 UPPERSTRUCTURE
    Group 1 Cab
    Group 2 Counterweight
    Group 3 Main Frame
    Group 4 Pump Device
    Group 5 Control Valve
    Group 6 Swing Device
    Group 7 Pilot Valve
    Group 8 Pilot Shut-Off Valve
    Group 9 Signal Control Valve
    Group 10 Travel Shockless Valve
    Group 11 Solenoid Valve
    Group 12 Pilot Relief Valve
    Group 13 Steering Valve
    Group 14 Brake Valve
    Group 15 Accumulator Charging Valve
    Group 16 Transmission Control Valve
    SECTION 3 UNDERCARRIAGE
    Group 1 Swing Bearing
    Group 2 Travel Motor
    Group 3 Center Joint
    Group 4 Transmission
    Group 5 Axle
    Group 6 Axle Lock Cylinder
    Group 7 Operate-Check Valve
    Group 8 Propeller Shaft
    SECTION 4 FRONT ATTACHMENT
    Group 1 Front Attachment
    Group 2 Cylinder
    Group 3 Hose-Rupture Safety Valve
    Group 4 Operate-Check Valve
    SECTION 5 ENGINE

    Service Manual (Troubleshooting)
    SECTION 4 OPERATIONAL PERFORMANCE
    TEST
    Group 1 Introduction
    Group 2 Standard
    Group 3 Engine Test
    Group 4 Wheel Loader Test
    Group 5 Component Test
    Group 6 Adjustment
    SECTION 5 TROUBLESHOOTING
    Group 1 General
    Group 2 Component Layout
    Group 3 Troubleshooting A
    Group 4 Troubleshooting B
    Group 5 Troubleshooting C
    Group 6 Electrical System Inspection
    Group 7 ICX

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