Control of Welding Current

B-2	OPERATION	B-2

CAUTION

DO NOT TURN THE “CURRENT RANGE SELEC- TOR” WHILE WELDING because the current may arc between the contacts and damage the switch.

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The “Current Range Selector” provides five overlap- ping current ranges. The “Fine Current Adjustment” adjusts the current from minimum to maximum within each range. Open circuit voltage is also controlled by the “Fine Current Adjustment” permitting control of the arc characteristics.

A high open circuit voltage setting provides the soft “buttering” arc with the best resistance to pop-outs preferred for most welding. To get this characteristic, set the “Current Range Selector” to the lowest setting that still provides the current you need and set the “Fine Current Adjustment” near maximum. For example: to obtain 175 amps and a soft arc, set the “Current Range Selector” to the 190-120 position and then adjust the “Fine Current Adjustment” for 175 amps.

When a forceful “digging” arc is required, usually for vertical and overhead welding, use a higher “Current Range Selector” setting and lower open circuit volt- age. For example: to obtain 175 amps and a forceful arc, set the “Current Range Selector” to the 240-160 position and the “Fine Current Adjustment” setting to get 175 amps.

CAUTION

DO NOT attempt to set the “Current Range Selector” between the five points designated on the nameplate.

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These switches have a spring loaded cam which almost eliminates the possibility of setting this switch between the designated points.

Wis-Con Part#	Description
XM37004	3/8” Flat Washer
10250021	Notice Decal
LIT10278	Installation Instructions

Idler Operation

Start the engine with the “Idler” switch in the “HIGH” position. Allow it to run at high idle speed for several minutes to warm the engine. The operating speeds are as follows:

ORDERING	ENGINE	FULL	HIGH	LOW
INFO.		LOAD	IDLE	IDLE

K6090-	Cont.	1450	1600±50	1000
ALL	TM27

The idler is controlled by the “Idler” toggle switch on the welder control panel. The switch has two positions as follows:

1.In the “High” position, the idler is off, and the engine runs at the high speed controlled by the governor.

2. In the “Automatic”	/	position, the
idler operates as follows:

a. When welding or drawing power for lights or tools (approximately 100-150 watts minimum) from the receptacle, the engine operates at full speed.

b. When welding ceases or the power load is turned off, a preset time delay of about 15 sec- onds starts. This time delay cannot be adjust- ed.

c.If the welding or power load is not re-started before the end of the time delay, the idler reduces the engine to low idle speed.

Carburetor Deicing Kit

A carburetor deicing kit is installed on Classic welders leaving the factory. The purpose of the Carburetor Deicing Kit is to prevent carburetor icing when the outside temperature is 60°F/15.5°c or lower. See Carburetor Deicing Kit Usage Instructions For Seasonal Change Over on page B3.

To obtain REPLACEMENT PARTS for the Carburetor Deicing Kit contact WIS-CON TOTAL POWER COR-

PORATION.

Wis-Con Part#	Description
10221023	Complete Carburetor Deicing Kit
10220028	Angled Heat Collector Shield
10060025	2”x18” Flexible Hose (Gates 28095)
X02355 #36	1.56”-2.50” Gear Clamp
XM32067	M10X70 Bolt

Auxiliary Power

1.75kw of 120V DC auxiliary power is available at the receptacle located below the nameplate.

JULY97

CLASSIC I

OPERATION