4. adjusting engine speed (dx models only) – Miller Electric 145 DXR User Manual

Page 32

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Complete Parts List available at www.MillerWelds.com

OM-4417 Page 28

8-4. Adjusting Engine Speed (DX Models Only)

803 595−B

2500

±

100 rpm (42 Hz)

3750

±

30 rpm (62 Hz)

Tools Needed:

After tuning engine, check engine

speed. See table for proper no load

speed. If necessary, adjust speed

as follows:
Start engine and run until warm.
Set Weld Output Control to Max.
Weld/Power Speed Adjustment
1

Adjustment Screw

To increase speed, turn screw in

(clockwise). To decrease speed,

turn screw out (counterclockwise).
Idle Speed Adjustment
2

Throttle Solenoid TS1

3

Adjustment Screw

Loosen two screws on side of

throttle solenoid TS1. Adjust TS1

until idle speed is approximately

2500 rpm. Use adjustment screw

to fine tune idle speed. Be sure TS1

plunger bottoms at idle. Tighten two

screws on TS1.

!

Stop engine. Close fuel
valve.

1

2

3

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