Relief Valve; Oil Pressure Switch - Ezgo 1600xd Repair Manual

3.2.2 RELIEF VALVE

2
5
(1) Relief valve
(2) By-pass valve
(3) To rocker arm shaft and camshaft
The relief valve prevents damage to the lubrication system
due to high oil pressure. Control range of the relief valve is
196 to 441 Kpa (2.0 to 4.5 kgf/cm², 28 to 64 psi).
3.2.3 BY-PASS VALVE
Oil fi lter cartridge has a by-pass valve inside, to prevent
the lack of lubrication oil in the engine, If the oil filter
element is clogged the by-pass valve opens and lets the
oil pass to each part of the engine without passing through
the fi lter.
3
-18
ENGINE - STRUCTURE AND FUNCTION
3
1
4
196W222B
(4) From pump
(5) To crankshaft

3.2.4 OIL PRESSURE SWITCH

1
3
4
2
5
6
8 7
(1) Warning lamp
(2) Battery
(3) Rubber gasket
(4) Contact rivet
The oil pressure switch is installed on the cylinder block
and leads to the oil passage of the lubricating oil.
When the oil pressure falls below the specifi ed value, the
contacts of the oil pressure switch closes to turn on the
warning lamp (1).
(A) At lower oil pressure
2
[49 kPa (0.5 kgf/cm , 7 psi) or less]
(B) At proper oil pressure
9
196W223C
(5) Contact
(6) Oil passage
(7) Cylinder block
(8) Oil
SUUV-W00 Apr. 2011