How to replace Heat Exchanger Seals for Volvo VN Truck

This instruction show you guide on how to replace heat exchanger seals for Volvo VN truck.Volvo IMPACT 2021

Procedures:
1.Remove the access cover.
2.Insert a screwdriver between the outlet flow cowl and the jacket casing.
Carefully pry off the outlet flow cowl.
3.Tap a small drift through the pin.Volvo Tech Tool
4.Disconnect the connectors from the control unit.
5.Lift off the jacket casing.
6.Lift the heater out of the lower part of the jacket casing
7.Unscrew the attaching bolts that are located round the heat exchanger.
8.Lift off the fan.
9.Unscrew the flange (1) from the heat exchanger. Install new seals (2) and (3)
10.When assembling, use a new rivet.

https://www.car-auto-repair.com

Comments

Volvo EC330B Excavator Battery Relay & Safety start Relay

Volvo EC330B Excavator Battery Relay & Safety start Relay Battery relay This is main relay for electric system. Volvo PTT Techtool 2.8.130 The relay turns the battery current ON or OFF, according to low power signals received from the start switch. Use of the relay permits the start switch to control the power of the batteries with a small capacity wire. When you replace this component, pay attention to the +/- signs on the relay. Wrong connection can cause early failure of relay. 2. Safety start relay When trying to restart the engine while the engine is running, or if the start switch is in the START position after the engine is activated, the relay cuts off the current to the starter motor to protect it.

Volvo EC330B Excavator Electronic Control System Overview

Volvo ECB330B Excavator Electronic control system overview Volvo ECB330B Electronic control system is composed of various computers and its communication line. In our system, 2 computer (EECU, VECU) is programmable and 1 computer (MDU) is not. Volvo Tech Tool Communication is important thing to control the machine properly. We use two communication lines that is international protocol. The line is twisted to protect the bus from electrical interference.

Volvo EC330B Excavator Engine Start and Stop Circuit Old Overview

Volvo EC330B Excavator Engine Start and Stop Circuit Old Overview Volvo PTT Procedures: Engine Start and Stop Circuit(Old) Power from battery => electric greasing system,start key,start motor,battery relay Power from battery relay =>safety start relay Vocom 88890300 1) Key ON BR=> Battery relay,alternator(15,pre-magnetization) ACC=>VECU,Air conditioner,EMS power relay 2) Key Start R2=> VECU C=> safety start relay 3) Engine running Alternator(L)=>hour meter,safety start relay,VECU(charge lamp off) * Resistor between alternator and BR termainal for quick charge lamp off Alternator(B+)=>alternator(BS,voltage sensing for regulation) Alternator(15)=>battery relay 4) Key Off VECU(JA61)=>battery relay

Volvo Truck Repair Guide

Search This Blog