Bosch Power Tools 1594K Installing and Adjusting Mini Carbide Blades, Installation Procedure

BM 2610028021 01-13_BM 2610028021 01-13.qxp 1/21/13 11:23 AM Page 9

INSTALLING AND ADJUSTING MINI

CARBIDE BLADES

If the blades and/or holder are gummed and difficult to remove, remove the clamping jaws and screws and clean all surfaces with mineral spirits; lacquer thinner or alcohol, as this will ensure an accurate blade setting and proper tool performance. (See REMOVAL OF MINI TC BLADE HOLDERS AND RETAINERS)

To install, carefully slide the blades onto ridges on the blade holders.

To ensure proper operation and an even cut, the blades must be positioned so that they are:

•Centered relative to the front and rear shoes.

•Aligned with each other.

•Positioned so that they will not touch against any part of the planer when rotated.

•Evenly pressed back toward the holder to ensure that they are level.

INSTALLATION PROCEDURE

1.Align the groove on top of the blade with the ridge of the blade holder and carefully slide the blade onto the blade holder, as shown in Figure 6.

2.Using a block of wood push the TC blade back towards the blade holder so that the inner side of the blade is pressed against the sloping part of the blade holder. (This will ensure that the blades are level.)

3.Then tighten the Torx clamping screws using the correct tightening sequence (1,2,3), as shown in Figure 4, and your planer is ready for use.

Blade Retainer Screws - Under normal circumstances, the position of the retainer on the mini TC blade holders does not require readjustment. If fact, the screws that attach the retainer to the blade holder are factory sealed with a yellow fastening compound that should not be disturbed. However, if you believe that adjustments must be made, proper adjustment is critical, and it is best performed by a Bosch Factory Service or Bosch Authorized Service Center.

FIG. 4

FRONT

SHOE

BLADE

CLAMPING WRENCH

JAW

CLAMPING

SCREW

BLADE

DRUM

BLADE

HOLDER

RIDGE

FIG. 5

FIG. 6

BLADE

HOLDER

CONVERSION TO HIGH-SPEED

STEEL BLADES

The 1594 Planer can be converted to accept large HSS blades. The conversion requires the optional PA1204 HSS Blades with Retainers (pair). (Fig. 7)

Additional pairs of HSS blade, the PA1205 large HSS blades, can also be purchased separately.

REMOVAL OF MINI TC BLADE

HOLDERS AND RETAINERS

1.Rotate the blade drum until the clamping jaw is parallel to the planer shoe.

2.Loosen the three clamp screws completely and remove the screws and clamping jaw.

3.Slightly rotate the blade drum and use a piece of wood to push the blade, holder and retainer off of the blade drum. Make sure to keep your fingers away from the sharp edges of the blade. If the blade is gummed and difficult to remove, you may clean the blade and clamp with mineral spirits, lacquer thinner or alcohol.

4.Rotate the blade drum 180° and repeat the procedure to remove the second blade.

INSTALLATION OF HSS BLADES

AND RETAINERS

Before inserting a new or sharpened blade, clean all surfaces (blades, retainer and drum) with mineral spirits; lacquer thinner or alcohol, as this will ensure an accurate blade setting and proper tool performance.

New or re-sharpened plane blades must be properly leveled before installation using the optional PA1206 HSS Blade Leveling Fixture. (The PA1204 HSS Blades with Retainers are leveled at the factory.)

To ensure proper operation and an even cut, the blades must be positioned so that they are:

•Centered relative to the front and rear shoes.

•Aligned with each other.

•Positioned so that they will not touch against any part of the planer when rotated.

Procedure:

1.To install the blades, carefully slide the blade/retainer assembly sideways to over one of the two clamping areas on the blade drum. The retainer must engage in the groove. (Fig. 8)

BLADE	FIG. 7
RETAINER

HSS

BLADE

GROOVE FIG. 8

2.Place a properly-oriented clamping jaw over the blade. (Fig. 4)

3.Tighten the three clamp screws with the Torx key using the correct tightening sequence (1,2,3). (Fig. 4)

4.Rotate the blade drum 180° and repeat the procedure for the second blade clamp.

REMOVING LARGE HSS BLADES To remove the blades:

1.Rotate the blade drum until the clamping jaw is parallel to the planer shoe.

2.Loosen and remove the three clamp screws with the Torx key.

3.Also remove the clamping jaw.

4.Slightly rotate the blade drum and use a piece of wood to push the blade and retainer sideways and out of the blade drum. Make sure to keep your fingers away from the sharp edges of the blade. If the blade is gummed and difficult to remove, you may clean the blade and clamp with mineral spirits, lacquer thinner or alcohol.

Rotate the blade drum 180° and repeat the procedure to remove the second blade.

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