Lincoln Electric OUTBACK SVM204-A Service Manual page 55

F-15
ENGINE RPM ADJUSTMENT PROCEDURE (continued)
Solenoid & Fuel
Pump Bracket
Electric Fuel Pump
(codes 10926 &11121 only)
High Idle
Screw &
Jam Nut
Frequency Counter Method
NOTE: A dedicated frequency counter can be
used for this test, but many high quality
digital multimeters also have this function,
and can be easily utilized. See the manu-
facturer's instructions for your frequency
counter or multimeter.
1. Set your frequency counter per the meter man-
ufacturer's instructions and plug it into one of
the 120VAC auxiliary receptacles.
2. Start the engine and place the idle switch in the
"HIGH IDLE" position. Make sure that there is
no load on this machine.
3. The frequency should read between 61.6 and
63.3 Hz.
TROUBLESHOOTING AND REPAIR
FIGURE F.2 – FREQUENCY COUNTER METHOD
Rubber
Boot Solenoid
OUTBACK® 185
Engine
Engine Speed
Control Lever
Swivel
Low Idle
Fitting
Jam Nuts
4. Move the idle switch to the "AUTO IDLE" posi-
tion and wait for the idle solenoid to energize.
The engine RPM should drop and stabilize at
the low idle RPM.
5. The frequency should read between 47.5 and
41.6 Hz.
6. If either of the readings is incorrect, proceed to
the Throttle Adjustment Procedure later in
this section.
NOTE: For the Outback® 185, and any other
Lincoln Electric 3600 RPM (2 Pole)
machine, engine RPM can be determined
by multiplying the frequency, in Hz. by 60.
(Example: 60 Hz. x 60 = 3600 RPM).
F-15
MOVING ENGINE
SPEED CONTROL
LEVER
DECREASE
INCREASE
(RPM)
(RPM)