Skil 4390 manual Assembly, Operating Instructions

SM 1619X00459 1-05 12/8/04 9:19 PM Page 7

Assembly

Attaching the Blade

!WARNING To prevent personal injury, always disconnect plug from

power source before assembling parts, making adjustments, or changing blades.

1.Insert the saw blade (teeth in cutting direction) until it latches in the plunger (Fig. 2).

FIG. 2

TOOL-LESS

BLADE CHANGE

COVER

When inserting the saw blade, the back of the blade must rest in the groove of the guide roller (Fig. 3).

2.To remove blade, lift tool-less blade change cover up with index finger and thumb and remove blade.

For use with both T or U shank jigsaw blades.

FIG. 3

BLADE

ROLLER

GUIDE

Operating Instructions

TRIGGER "ON-OFF" SWITCH

TO TURN THE TOOL "ON" squeeze the trigger switch. TO TURN THE TOOL "OFF", release the trigger switch, which is spring loaded and will return to the "OFF" position automatically.

"LOCK-ON" BUTTON

The "Lock-ON" button, located in the handle of your tool allows for continuous operation at maximum SPM without holding the trigger (Fig. 1).

TO LOCK TRIGGER "ON": squeeze trigger, depress button and release trigger.

TO UNLOCK THE TRIGGER: squeeze trigger and release it without depressing the "Lock- ON" button.

!WARNING If the “Lock-ON” button is continuously being depressed,

the trigger can not be released.

VARIABLE SPEED DIAL

Your tool is equipped with a variable speed dial. The blade stroke rate may be adjusted during cutting operation by presetting the dial on or between any one of the six numbers.

Setting	SPM rating (strokes per minute)
1-2	Low stroke
3-4	Medium stroke
5-6	High stroke

PLUNGER SPEED

The stroke rate may be adjusted as described earlier under “Variable Speed Dial”. The best results for a particular application is determined by experience, though as a general rule, slower speeds are for denser materials and faster speeds are for soft materials.

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