Miller Electric PipePro 304 Adjusting Engine Speed, Adjusting Idle Speed, Using Engine Stop Lever

8-8. Adjusting Engine Speed

2500 rpm (41.6 Hz)

3750 Max (62.5 Hz)

6

7

4

5

8

2 3 1

After tuning engine, check engine speeds with a tachometer (see table). If necessary, adjust speeds as follows:

Start engine and run until warm. Turn V/A control to max.

Adjusting Idle Speed

Idle speed is factory set and normally does not not require adjustment unless the governor/injector pump or throttle solenoid is replaced.

1Throttle Link

2Throttle Solenoid Plunger Rod

3Jam Nut

4Throttle Arm Stop Screw

Turn Engine Control switch to Run/Idle position. Loosen jam nut and turn sole- noid rod clockwise (into throttle link) to decrease idle speed. Turn rod counter- clockwise to increase idle speed. Tighten nut.

.Be sure solenoid plunger rod pulls

all the way in “bottoms” when en- ergized. If plunger rod does not pull all the way in, readjust rod and throttle link.

.Throttle arm should not contact

stop screw when solenoid is ener- gized. If necessary, adjust stop screw to create gap between throttle arm and stop screw.

Adjusting Weld/Power Speed

5Throttle Solenoid

6Weld Speed Jam Nut

7Adjustment Screw

Turn Engine Control switch to Run position. Loosen nut and turn screw counterclockwise to increase speed. Turn screw clockwise to decrease speed. Tighten nut.

Using Engine Stop Lever

8 Engine Stop Lever

Use lever to stop engine if Engine Con- trol switch does not work.

Tools Needed: 10 mm

802 330-B

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