Bosch Power Tools 1529B manual Assembly, Operating Instructions

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BM 1609929Y02 05-10:BM 1609929Y02 05-10 5/10/10 9:16 AM Page 8

Assembly

CHANGING PUNCHES AND DIES Disconnect the plug from the power source before

making any assembly, adjustments or changing accessories. Such preventive safety measures reduce the risk of starting the tool accidentally.

REPLACING THE PUNCH

Loosen the winged screw and pull the die holder (including the die and knurled nut) out of the housing. Slide the punch sideways out of the groove and remove downward.

Oil the new punch well, insert into the groove and center.

Slide the die holder carefully over the punch and into the housing. Re-tighten the winged

screw. The winged screw must engage one of the holes in the die holder.

NOTE: The punch cannot be reground.

REPLACING THE DIE

Unscrew the knurled nut together with the rubber ring out of the die holder and remove the die. Remove any rust material or cutting particles that may have collected in the die holder.

Insert a new die paying attention to the alignment of the flat surface on the side. Firmly tighten the knurled nut against the resistance of the rubber ring.

NOTE: The die cannot be reground.

Operating Instructions

GENERAL INFORMATION

Following a few simple tips will reduce wear on the tool and the chance of injury to the user.

With the tool unplugged from the power supply and the ON/OFF Switch in the “OFF” position, become familiar with handling the nibbler and learning the location of its parts.

Before running the nibbler, inspect the punch and die for excessive wear, and replace if necessary.

Do not exceed recommended capacities for this nibbler. Premature punch and die failure will occur when the nibbler is under- or over- gaged.

Never start the nibbler with the punch and die in contact with the material being cut.

For clean and fast cuts, hold the nibbler so that the cutting head is at a right angle to the cutting path, with the body of the tool parallel to the corrugations. Move the cutting head in and out of the corrugations, constantly keeping the head at a right angle to the material being cut.

Feed the nibbler into the work with a minimum of pressure. Let the nibbler do the work. If the nibbler doesn’t cut correctly, check for a dull punch or die. Dulling will be apparent as more pressure is required to feed the nibbler into the material. Burrs will also show along the cut edge. A harder material will dull the punch and die faster than a soft material.

Always direct the cord toward the rear, and away from the nibbler. Keep it away from sharp edges.

Secure or clamp small workpieces to be cut to prevent slippage.

Always use recommended lubricant for the material being cut. Lack of lubricant will shorten punch and die life.

PADDLE SWITCH WITH “LOCK-ON” FEATURE

The Paddle Switch enables the operator to control the switch functions of “ON/OFF” and “Lock-ON”.

TO SWITCH TOOL “ON”: Squeeze and hold the paddle lever.

TO SWITCH TOOL “OFF”: Release pressure on the paddle lever. The switch is spring loaded and will return to “OFF” position automatically.

The “Lock-ON” feature, incorporated into the paddle switch, is a convenience for long operations.

TO LOCK SWITCH “ON”: After switch has been activated, PULL the front portion of the paddle lever completely BACKWARD and release pressure on the paddle lever.

TO SWITCH TOOL “OFF”: Squeeze the rear portion of paddle lever and then release the paddle lever. The switch is spring loaded and will return to “OFF” position automatically.

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