volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

Flame Sensor Fuel-Powered Preheater|Page 11776 > < Flame Sensor Fuel-Powered Preheater|Page 11774
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Remove the flame sensor (1).

Installation

Installing the flame sensor

Install the flame sensor. Tighten. See  Tightening torque See: Body and Frame/Specifications.
Install the cable terminals and cables in the connectors. See:
- Flame sensor in positions 1 and 2 (blue and brown).

Note! Route the cables behind the fan motor to the connector.

Carefully push the fan housing into place.

Ensure:

-

that the connector is not trapped

-

that the cable seal on the water pump is correctly positioned and that the cable runs behind the fan motor like the others.

Install the cover using 4 screws.
If necessary adjust the pipe coupling. See: Coolant pipe fuel-powered preheater, B5254T7, L.H.D See: Auxiliary Water Pump/Service and
Repair/Coolant Pipe Fuel-Powered Preheater.
Install the control module. See: Fuel Fired Booster Heater Control Unit, B5254T7, L.H.D See: Auxiliary Cabin Heater Control Module/Service and
Repair.

Finishing

Testing the engine coolant heater

Carry out a performance test of the engine coolant heater. See: Fuel-powered preheater, checking See: Testing and Inspection/Component Tests and
General Diagnostics/Fuel-Powered Preheater, Checking.

Flame Sensor Fuel-Powered Preheater|Page 11776 > < Flame Sensor Fuel-Powered Preheater|Page 11774