Technical Manual Hitachi ZW550-G Wheel Loader | TTNHD-E-00

Technical Manual Hitachi ZW550-G Wheel Loader TTNHD-E-00 (Preview)

TTNHD-E-00
Foreword
Safety Precautions
Safety Symbols
Symbols
Troubleshooting 01
Cautions Regarding Troubleshooting
How to Use Quick Troubleshooting Table
Safety Precautions
Quick Troubleshooting Table
Torque Converter and Transmission Group
1. Machine does not move in any shift lever position
2. Machine dose not move at a certain shiftlever position (OR:Machine moves only in a certain shiftlever position)
3. Machine moves at the neutral position (Example: Machine moves forward at theneutral position)
4. Large shock at starting or changingspeeds / direction
5. Large time lag at starting or changingspeed / direction
6. Low power (Defective torque converter ortransmission)
7. Torque converter oil is overheating
8. Machine moves reverse when starting toclimb up on a slope using inching brake
9. Automatic speed change is not possible
10. QUAD switch does not work
Hydraulic Group
1. Boom and/or bucket do not move
2. Boom and/or bucket have low power, ormove too slowly
3. Excessive cylinder drift
4. Boom and /or bucket are spongy(Holding bucket against the ground is notpossible-front wheels off the ground)
5. Bucket positioner (kick-out) does not work
6. Steering is not possible or hard to steer
7. Machine sways, or has a shock duringsteering
8. Abnormal noise in hydraulic system
9. Others
Brake Group
1. Brake does not work well(In the worst case, the brake does not workat all)
2. Brake is dragging when released
3. Stepping on the brake pedal sounds thebuzzer
4. Accumulator pressure does not rise, or tooslow in rising.
5. Parking brake does not work(or: Releasing the brake is not possible)
6. Auto brake does not work
Electrical Group
1. Instrument panel does not indicateproperly
2. Breaker of the transmission controller isturned off
Operator Station Group
1. Air conditioner
MEASUREMENT FOR PERFORMANCE CHECK 03
Standard Measurement Values for Performance Check
Preparation for Performance Check
Measuring Engine Speed
Measuring Clutch Oil Pressure and Time Lag
Measuring Cylinder Drift
Measuring Boom Cycle Time
Measuring Full Steering Cycle Time
Measuring Relief Valve Setting Pressures
Measuring Fan Revolution
Checking Brake Performance
Measuring Brake Line Oil Pressure
Measuring Accumulator Circuit Charging Time
Measuring Number of Brake Pedal Applications
Measuring Declutch Engagement
Notes