CARBURETOR (Cont'd)
Adjustment (Cont'd)
Set the engine idle speed (Item 1)
[A]
to
850-950
RPM
at operating temperature.
Turn the idle fuel adjustment (Item 2)
[A]
in
until the
engine
RPM
decreases. Make a note of this position.
Turn
the
idle fuel adjustment (Item
2)
[A]
out until the
engine
RPM
decreases. Adjust the idle fuel adjustment
between the two positions.
A
WARNING
When an engine
is
running
in an enclosed
area, fresh
air
must
be added
to
avoid
concentration
of
exhaust fumes. If
the
engine
is stationary, vent the exhaust outside.
Exhaust fumes contain
odorless,
invisible
gases
which
can kill
without
warning.
W-20SD-128S
Governor
Adjustment
NOTE:
Adjust
engine
timing.
(See Page
7B-4.)
Loosen three
governor
mounting
bolts.
Adjust
governor
belt tension
to
1/4
inch
movement at middle
of
belt. Keep
governor
level
and
tighten
the bolts.
Disconnect throttle rod (Item
1)
[B].
Hold carburetor linkage (Item
3)
[B]
and governor linkage
(Item
4)
[B]
against their stops and tighten the screws
(Item
2)
[B]
.
Check the governor throttle lever for maximum travel.
Start the engine.
Check that the engine idle speed is at
700-750
RPM while
holding governor lever against the idle stop.
Set the throttle lever fast position stop bolt (item 1) [C] at
rear of slot.
Push throttle lever fully forward.
Set engine RPM at 2900-2975 RPM by adjusting the ball
joi
nt
(Item
3)
[B]
and high speed stop
on
the governor.
Pull throttle lever back until carburetor lever
is
against the
idle stop screw.
Set and tighten the slow position stop bolt (Item 2)
[C]
against the throttle lever.
Revised Nov. 96
-70-12-
741, 742, 743, 7430S Bobcat Loader
Service
Manual
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