Owner`s manual

OM-236 948 Page 42
8-7. Adjusting Engine Speed On Models With Automatic Idle (Optional)
803 563
1880 rpm max
(62.6 Hz)
1500 rpm
(50 Hz)
Engine Speed
(No Load)
Engine Speed Adjustment
After tuning engine, check en-
gine speed with tachometer or
frequency meter. See table for
proper no load speed. If neces-
sary, adjust speed as follows:
Start engine and run until warm.
Turn Process/Contactor switch
to Stick − Weld Terminals Al-
ways On position.
1 Throttle Rod / Plunger
2 Lock Nut
3 Rubber Boot
4 Adjustment Screw
Adjustment screw is not used to
adjust engine speed when auto-
matic idle option is installed.
 To prevent solenoid dam-
age, be sure a 1/8 in. (3 mm)
gap exists between the en-
gine low speed screw and
throttle lever when the sole-
noid is held in the energized
position.
Unhook rubber boot from the so-
lenoid housing but leave con-
nected to plunger.
Loosen lock nut. Place Engine
Control Switch in Auto position.
Turn throttle rod and plunger un-
til engine runs at idle speed.
Tighten lock nut.
Hook rubber boot back onto so-
lenoid housing.
 Be sure solenoid plunger
pulls all the way in (“bot-
toms”) when energized.
Weld/Power Speed
Adjustment
 Weld/power speed adjust-
ment must be done by the
engine manufacturer’s fac-
tory authorized service
agent.
Tampering with adjustments
other than shown may affect
engine warranty.
! Stop engine.
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