Volvo Truck Repair Guide

This illustration show Volvo EC330B instrument panel operation. Volvo EC360B Instrument Panel Operation Instrument panel operation 1. Lamp and buzzer check procedure 2022 Volvo PTT Tech Tool PTT 2.8.130 Before starting the engine, if you turn the start switch to the ON position all lamps are turned ON for 3 seconds. At the same time the buzzer is operated 2 times with the cycle of 1.0 second ON and 1.0 second OFF. Check if all indicator lights come on, and if not, check for burnt-out light bulbs, and the plugin connectors (connector A, B) of the printed circuit board. 2. Central warning and buzzer soundW signal indicates engine status whether engine is running or not.IC in the instrument panel receives warning signal and this W signal and then decides that this situation is warning case or not. For example, when we turn the key switch from OFF to ON, we can see only charge warning lamp and engine oil low pressure without central warning and buzzer sound because there is no signal from...

This illustration show Volvo EC330B Display ECU MDU. Volvo EC360B Display ECU MDU MDU(Machine Display Unit) This animation is to show you how to operate display unit. Push the arrow button step by step. Volvo PROSIS 2019 If the key is ON position, all lamps are ON for one second and then engine speed and work-mode are displayed. By pushing arrow button, display contents are changed from engine speed to battery voltage, hammer operating hour, key number, pump flow rate and error code. 2022 Volvo PTT Premium Tech Tool PTT 2.8.130/2.7 & 2.6 When pump flow rate is selected, if you push the arrow button for 5 second, the unit of flow will be changed between lpm and gpm. When error code is selected, active error codes are displayed consecutively. If pump flow rate (option) is changed, set value is displayed on main display window for 10 seconds.

This illustration show Volvo EC330B pump flow control. Volvo EC360B Pump Flow Control At job site, customer uses various kind of optional attachment like hammer, shear etc. Every attachment has their unique operating specification especially in flow. Our machine can satisfy this request by using flow control switch and flow control proportional valve. 1. When operator adjust flow control switch, display automatically shows the flow value at the present engine rpm.  2022 Volvo PTT Premium Tech Tool PTT 2.8.130/2.7 & 2.6   2. When operator uses the option attachment, the pilot pressure switch will be activated. V-ECU receives this signal and then start to controls the flow control valve according to flow control switch position. If the pilot switch is off position, there is no output current from V-ECU. That means flow control function is engaged only during the working of optional attachment. Volvo IMPACT EPC 06.2021

This illustration show Volvo EC330B excavator emergency control. Volvo EC360B Emergency Control Overview This function is for emergency operation when malfunction of data bus or V-ECU has occurred. Volvo Techtool diagnostic tool 1. When there is communication error, E-ECU realizes this condition and automatically goes to the emergency mode. If emergency switch is in neutral position, engine speed will be emergency low speed and maximum current will be supplied to power-shift valve from V-ECU. 2. When there is communication error, E-ECU realizes this condition and automatically goes to the emergency mode. If emergency switch is up position, engine speed will be emergency high speed and power-shift valve current is set to the value that corresponds to 85% of the maximum pump input torque from V-ECU. 3. When malfunction of V-ECU, Emergency switch control the engine speed and Auto-Manual switch decide power shift current with resistor box. Machine can use 85% of the maximum pump input torq...

This illustration show Volvo EC330B excavator engine speed and work mode control. Volvo EC360B Engine Speed and Work Mode Control Overview In control system, we can have 10-step engine speed and 5 work-modes.