VOLVO EW200B WHEELED EXCAVATOR Service Repair Manuals
Remove the covers over the diesel engine.
3. Remove the protective plates under the engine.
4. Connect a hose with a valve (tool equipment) and drain the coolant from the radiator into a clean container. The filled
radiator contains approx. 22 liters.
5. Connect a hose with a valve (tool equipment) and drain the hydraulic oil from the hydraulic oil tank into a clean
container. The filled tank contains approx. 190 liters.
6. Disconnect the connections to the sight glass for the hydraulic oil tank. Plug and mark.
7. Remove the hood opener.
Cylinder head, description
The cylinder head is made of cast iron and is common for all cylinders. The induction air enters vertically (A) and the
exhausts leave horizontally (B). Inlets and exhaust outlets are located on the same side of the cylinder block. In order for the
engine to fulfill governing emission standards, there are 3 cylinder head gaskets of different thicknesses between the
cylinder head and the piston.
The pistons are made of special alloy aluminum. The piston’s combustion compartment has a somewhat off-center
(eccentric) position in relation to the piston pin.
The pistons are provided with 3 piston rings. The first ring has a ring carrier made of cast iron.
The piston is cooled with oil sprayed up on the inside of the piston top.
The piston cooling nozzles are made of plastic and are mounted in the cylinder head by the main bearing positions.
The first piston ring has an asymmetric cross-section area (A). The cross-section area for piston ring number two
(compression ring) is tapered. When installing the piston rings, the marking TOP by the opening in the rings must face up.
The third ring is an oil ring with a beveled edge.