Hitachi ZW550/Zw550-G Wheel Loader Service Manual

Product Overview

The Hitachi ZW550/Zw550-G Wheel Loader Service Manual is an essential PDF resource for comprehensive understanding and maintenance of these specific loader models. This manual is crucial for troubleshooting, operating, and repairing your machinery effectively.

Key Features

• Format: PDF
• Language: English
• Detailed Manuals: Comprises troubleshooting, operation, and workshop manuals.

Content Details

For Model ZW550:

• Service Manual (Troubleshooting): Vol. No.TT11C5-E-01 (116 Pages)
• Operation Manual: Vol. No.TO11C5-E-01 (526 Pages)
• Workshop Manual: Vol. No.W11C5-E-01 (353 Pages)

For Model ZW550-G:

• Service Manual (Troubleshooting): Vol. No.TTNHD-E-EN0 (90 Pages)
• Operation Manual: Vol. No.TONHD-E (587 Pages)
• Workshop Manual: Vol. No.WNHD-E (365 Pages)

Table of Content (Workshop Manual Excerpt)

• Clutch Assembly
• Transmission Clutch and Other Assemblies
• Modulator and Control Valve Assemblies
• Torque Converter and Transmission Group Maintenance
• Hydraulic Group Disassembly and Reassembly

Note: This is an extract of the full table of contents.

Included Information

• Service Manual: Technical information for redelivery, delivery, operation, and troubleshooting.
• Workshop Manual: Maintenance and repair procedures, including tool requirements and standards.

Usage Recommendations

Time Lag Measurement Procedure:

1. Lower the boom to the lowest limit and fully roll back the bucket to the stopper.
2. Set the parking brake switch to “OFF” (Do not apply service brakes).
3. Set the transmission shift lever to neutral 1st speed.
4. Maintain engine speed at 1,500 rpm.
5. Shift the lever to forward and start the stopwatch to measure time before machine movement.

Troubleshooting

Clutch Oil Pressure Issues

Possible Cause	Solution
Malfunctioning modulator valve operation	Inspection & repair
Defective controller	Replacement
Oil leakage from clutch	Disassembly & repair

Clutch Time Lag Issues

Possible Cause	Solution
Defective pressure difference sensor	Replacement
Malfunctioning modulator valve operation	Inspection & repair
Defective controller	Replacement
Defective clutch	Disassembly & repair