Oil Filter; Oil Pressure Check; Calibrated Pipe For Lubrication Of Hydraulic Tappets - Kohler KD225 Workshop Manual

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KD 225_315_350_400_440 Workshop Manual_cod. ED0053029330_1° ed_ rev. 00
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Oil filter

Filter components: KD 315/350
1 Seal
2 Adhesive
3 End cap
4 Filtering material
5 Plate
Dimension mm: A = 26.5 B = 18 C = 88.5 D = 67.5 E = 8.5
Characteristics:
Useful filtering area = 75 cm
Degree of filtration = 50 µm.
The by-pass valve is set at 0.6-0.8 bar.
Filter components: KD 225
7 Rubber pad
8 Upper cover
9 Filter element
10 Lower cover
Dimension mm: A = 19.0-19.3 B = 12.5 C = 83.0-83.5
Characteristics:
Useful filtering area ≥ 75 cm
Degree of filtration = 40-60 µm.
See page 18 for the replacement frequencies.

Oil pressure check

When assembly operations are completed fill engine with oil and fuel;
connect a 10 bar pressure gauge to the oil filter fitting.
Start the engine and check pressure as a function of the oil tempera-
ture (see below).

Calibrated pipe for lubrication of hydraulic tappets

The pipe is fitted to the hydraulic tappets oil line (see fig. 83, detail
11).
If the calibrated hole is clogged, the tappets are not sufficiently
lubricated, valve clearance is therefore increased and the engine may
be noisier.
If the diameter of the calibrated pipe is larger than the ones given in
picture 93, the pressure exerted by the hydraulic tappets may cause
the valves to remain open even during the compression phase.
LUBRICATION SYSTEM
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