volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

Coolant Pipe Fuel-Powered Preheater|Page 17529 > < Water Pump, Fuel-driven Auxiliary Heater|Page 17524
Page 1
background image

Auxiliary Water Pump: Service and Repair
Coolant Pipe Fuel-Powered Preheater

Coolant pipe fuel-powered preheater

Note! The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the
essential information in the illustrations is always correct.

Preparatory work

Replacing pipe couplings

Remove:

-

the engine coolant heater. See: Fuel Fired Booster Heater See: Auxiliary Cabin Heater/Service and Repair/Fuel Fired Booster Heater 

-

the engine coolant hose(s) from the pipe coupling(s) on the engine coolant heater.

Hint: Mark out the internal location of the engine coolant hoses and the angle of the pipe couplings in relation to the cover.

Removal

Removing the cover over the heat exchanger

Remove cover over heat exchanger. It is secured using 4 screws.
Lift up the cover a little until the snap rings for the pipe couplings release.
Ease out and pull the pipe couplings upwards, one at a time.

Removing pipe coupling and snap ring

Coolant Pipe Fuel-Powered Preheater|Page 17529 > < Water Pump, Fuel-driven Auxiliary Heater|Page 17524