13OPERATING THE ENGINE
[GR2120, GR2120AU]
A Do not turn the key switch to the "START" position
while the engine is running.
A When the temperature is below 0 (32 ), run the
engine at medium speed to warm up the lubricant of
the engine and the transmission for at least 10
minutes. If the machine is operated before the
lubricant is warm enough, the machine life will be
shortened.
A Do not operate the machine under full load until it is
sufficiently warmed.
A Do not use starting fluid or ether.
A When the ambient temperature is less than -15
(5 ), remove the battery from the machine and store
it somewhere warm until the next operation.
BThrottle Lever and Choke Lever
Pulling the throttle lever downward decreases the engine
speed and pushing it upward increases the engine speed.
[GR2020G]
C Choke lever
[For a Cold Engine]
Always pull the choke knob out to the "ON" position to
start the engine in cold conditions.
Gradually return the choke control to the "OFF" position
after the engine starts and warms up.
The engine/equipment may be operated during the warm-
up period, but it may be necessary to leave the choke
partially on until the engine warms up.
[For a Warm Engine]
Always push the choke knob in to the "OFF" position after
the engine starts.
OFF............ The position where the key can be
inserted into or removed from the
key switch. [When the key is turned
to this position, the engine shuts off.]
ON..............
The engine keeps running.
PREHEAT...
The super glow plug is heated.
START........ Apply the parking brake and turn the
key switch to this position to start the
engine.
: "OFF"
: "ON"
: "PREHEAT"
: "START"
6. [GR2120, GR2120AU]
Turn the key switch to the "PREHEAT"
position clockwise, and hold it for about
5 seconds.
For the appropriate preheating time,
refer to the table below:
Temperature Preheating Time
Over 0 (32 ) 5 sec.
Below 0 (32 ) 10 sec.
(1) Throttle lever : "FAST"
: "SLOW"
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