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TROUBLESHOOTING AND REPAIR | ||
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ENGINE RPM ADJUSTMENT PROCEDURE (continued)
FIGURE F.2 – FREQUENCY COUNTER METHOD
Solenoid & Fuel |
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Pump Bracket | Engine | |
Electric Fuel Pump | ||
Engine Speed | ||
(codes 10926 &11121 only) | ||
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| Control Lever |
High Idle |
| Low Idle | Swivel |
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Screw & |
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| Fitting | MOVING ENGINE | |||
Jam Nut |
| Jam Nuts | |||
Rubber |
| SPEED CONTROL | |||
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| Boot | Solenoid |
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| LEVER |
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| INCREASE | DECREASE |
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| (RPM) | (RPM) |
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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.
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).
