n ne ste
et ol
90
e
e an al
Engine System - Petrol
Functional Description
The engine system generates electric current for all
machine functions.
The assembly consists of an internal combustion en-
JLQHDQGG\QDPRWRUZKLFKDUHERWKFRQQHFWHGWRWKH
main crankshaft.
The engine is a single-cylinder air-cooled petrol type.
The engine start-up is made by the dynamotor to
which it is connected.
7KH G\QDPRWRU DFWV DV D VWDUWHU XVLQJ WKH EDWWHU\
only for the time necessary to start the engine.
$W D ODWHU VWDJH WKH UXQQLQJ HQJLQH VXSSOLHV WKH
power to the dynamotor to generate the current and
to power the electrical systems of the machine. The
surplus current is used to charge the batteries.
7KHHQJLQHVSHHGLVÀ[HGUSPWRJUDQWDFRQ
-
stant current to the electrical system.
7KHIXHOWDQNLVIDVWHQHGRXWVLGHWKHHQJLQHLQWKH
rear side of the machine. The tank has a fuel level in-
GLFDWRUZLWKÁRDWDQGDYDOYHZLWKLQWHJUDWHGÀOWHU
The choke lever on the engine has been extended in
RUGHUWREHHDVLO\DFWLYDWHGIURPWKHGULYHU·VVHDWSR
-
sition.
The fuel reserve warning light turns on when the fuel
in the tank is less than 2.2 liters.
The engine is equipped with an oil level sensor (Oil
$OHUWZKLFKSXUSRVHLVWRDYRLGGDPDJHVFDXVHGE\
DQLQVXIÀFLHQWRLOTXDQWLW\LQWKHRLOSDQ%HIRUHWKH
RLOOHYHOJRHVEHORZWKHVDIHW\OLPLWWKHV\VWHP2LO
Alert) automatically stops the engine shorting the
spark plug to the chassis..
,IWKHHQJLQHVWRSVDQGGRQRWUHVWDUWFKHFNWKHHQ
-
gine oil level before doing any other troubleshooting
procedure.
Wiring Diagram
E
R
SE (
)
IGNITION
KEY (SW1)
EMERGENCY
PUSH BUTTON (SW )
MACHINE ON
RELAY (K4)
FRAME (FR)
OIL
ALERT
ENGINE START
ELECTROMAGNETIC
SWITCH (ES2)
ENGINE
SPARK PLUG (SPK)
ENGINE
P200128
Summary of Contents for SW4000
Page 233: ......
