10 SECTION 1 - GENERAL SPECIFICATIONS F2B CURSOR EURO 4 ENGINES Base - September 2006 Print P1D32C002 E By-pass valve inside the filter support/heat exchanger assembly Figure 10 73545 The valve quickly opens at a pressure of: 3 bars. Thermostatic valve Figure 11 73546 Start of opening: - travel 0.1 mm at a temperature of 82 ± 2°C. End of opening: - travel 8 mm at a temperature of 97°C. Engine oil filters Figure 12 47447 This is a new generation of filters that permit much more thorough filtration as they are able to holder back a greater amount of particles of smaller dimensions than those held back by conventional filters with a paper filtering element.
These high-filtration devices, to date used only in industrial processes, make it possible to: - reduce the wear of engine components over time; - maintain the performance/specifications of the oil and thereby lengthen the time intervals between changes. External spiral winding The filtering elements are closely wound by a spiral so that each fold is firmly anchored to the spiral with respect to the others. This produces a uniform use of the element even in the worst conditions such as cold starting with fluids with a high viscosity and peaks of flow.
In addition, it ensures uniform distribution of the flow over the entire length of the filtering element, with consequent optimization of the loss of load and of its working life. Mount upstream To optimize flow distribution and the rigidity of the filtering element, this has an exclusive mount composed of a strong mesh made of nylon and an extremely strong synthetic material. Filtering element Composed of inert inorganic fibres bound with an exclusive resin to a structure with graded holes, the element is manufactured exclusively to precise procedures and strict quality control.
Mount downstream A mount for the filtering element and a strong nylon mesh make it even stronger, which is especially helpful during cold starts and long periods of use. The performance of the filter remains constant and reliable throughout its working life and from one element to another, irrespective of the changes in working conditions. Structural parts The o-rings equipping the filtering element ensure a perfect seal between it and the container, eliminating by-pass risks and keeping filter performance constant. Strong corrosion-proof bottoms and a sturdy internal metal core complete the structure of the filtering element. When mounting the filters, keep to the following rules:
- Oil and fit new seals. - Screw down the filters to bring the seals into contact with the supporting bases. - Tighten the filter to a torque of 35÷40 Nm. Figure 12 4 4 7447