Miller Electric Big 40 WG manual Adjusting Engine Weld/Power Speed, Maximum

8-5. Adjusting Engine Weld/Power Speed

YStop engine and let cool.

Engine Speed	RPM (Hz)
(No Load)
Weld/Power	1850 (61.7)
	Maximum

7

1/16 in

8 (1.6 mm)

6

11 10

9

.Governor sensitivity may re- quire adjustment if engine speed is adjusted (see Section 8-7).

Engine speed is factory set and should not require adjustment. Af- ter tuning engine, check engine speed with tachometer or frequen- cy meter. See table for proper no load speed. If necessary, adjust speed as follows:

Start engine and run until warm.

On CC Models, place Stick/TIG switch in Stick position.

On CC/CV models, turn Process/ Contactor switch to Stick – Elec- trode Hot position.

1Socket Nut

2Governor Linkage Rod

3Lock Nut

4Socket

5Governor Arm

Rod length should be 3-1/4 in (83

mm)between lock nuts. To adjust, remove socket from arm and loos- en lock nut. Turn socket to adjust length. Tighten nut and reattach socket to arm.

.If linkage binds, loosen socket nuts and turn sockets until link- age works smoothly. Tighten nuts.

1

3-1/4 in

4

6	Carburetor
7	Throttle Stop Plate
8	Throttle Stop

(83 mm)

3

2

5

13

12

Tools Needed:

3/8, 7/16 in

Clearance between plate and stop should be 1/16 in (1.6 mm). To ad- just clearance, proceed as follows:

9Linkage Pivot Arm

10Linkage Socket

11Lock Nut

Remove socket at arm and loosen lock nut. Turn socket to adjust clearance. Reattach socket and tighten nut.

Start engine and run until warm. Turn Engine Control switch to Run position.

12Governor Speed Screw

13Lock Nut

Loosen nut. Turn screw until engine runs at weld/power speed.

YStop engine.

Close door.

802 731 / 802 780 / Ref. 801 179 / Ref. 800 161

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