Oil Pump; Oil Pressure Relief Valve; Oil Filter Cartridge; Oil Pressure Check - Kohler KD 625/3 Workshop Manual

5
Lubrication system
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116
118
119
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Oil pump

Check that gear teeth are intact and that clearance between gear
edge and pump body is 0,041 ÷ 0,053 mm with limit value 0,10 mm.
Furthermore check that control shaft is tree to rotate with end float of
0,040 ÷ 0,090 mm with limit value of 0,170 mm.
Oil pump delivery at 3000 r.p.m. is 18 liters/min.
115

Oil pressure relief valve

Components:
1 Plug
2 Copper gasket
3 Bushing
4 Piston
Note: Blow-by at an oil temperature of 40 ÷ 50°C and pressure of 3
117

Oil filter cartridge

Components:
Characteristics:
Max. working pressure ....................................13 bar
Filtering area....................................................955 cm
Type of filtration ...............................................20 µm
By-pass valve opening pressure .....................1,4 ÷ 1,8 bar.

Oil pressure check

Once the engine is fitted fill with oil and fuel, connect a 10 bar pressu-
re gauge to the oil filter fitting.
Start the engine and check pressure as a function of the oil tempera-
ture (see page. 49).
5 Rubber gasket
6 Ring
7 Hole for pressure switch connection
8 Spring
bar should be less than 1 I/min.
When refitting screw bushing 3 so that it touches gasket 5.
Do not tighten excessively since gasket 5 might break causing
an oil pressure drop in the system.
1 Retainer
2 Plate
3 Valve
4 Gasket
5 Gasket
KD Workshop Manual_cod. ED0053029350_1° ed_ rev. 00
6 Upper cover
7 Blade
8 Filtering element
9 Assembly
10 Belleville washer
11 Tank
2