Bosch Power Tools PR20EVSNK PR004 Offset Base, Heat Build-Up, Motor Installation, Drive Gear

BM 2610021461 06-12_BM 2610021461 06-12.qxp 6/26/12 1:38 PM Page 17

PR004 OFFSET BASE

(Included with PR20EVSNK. Also available as

optional accessory)

The PR004 Offset Base is designed for routing in confined areas, especially for trimming laminates in areas that are inaccessible with the standard fixed base, such as locations that are close to adjacent vertical surfaces like as the tops of already-installed counter backsplash backsplashes (Fig. 23).

The PR004 allows routing extremely close to vertical surface in front of the tool, as close as 1/2” when 3/4” bit is used (Removal of the black offset spindle cover further reduces distance from 3/4” bit and vertical surface to 3/8”.) The 1-1/16” base opening makes it possible to use bits that have cutters as wide 13/16”.

The PR004 can also be used to scribe the back of a new counter backsplash so that it will mate precisely with the wall against which it will rest (Fig. 24).

Heat Build-Up

To reduce the risk of injury, ! WARNING do not use the offset base

for more than 10 minutes continuously.

Prolonged continuous use will result in the tool becoming hot to the touch.

The nature of a belt drive mechanism like the one in the PR004 Offset Base creates more heat than when the motor is used in its other bases. To help minimize heat build-up, the PR004 has been designed with large bearings, specially-designed heat sinks, carefully-directed airflow and plastic heat shields. Depending on the application, the PR004 Offset Base can be used for up to about 10 minutes continuously before it will need to be left idle so that it can cool off.

Motor Installation

1.Remove collet from motor and install toothed drive pulley using collet wrench. Make sure that drive gear is fully tightened onto the motor’s spindle. (Fig. 25)

2.The motor is then installed into the base according to the instructions on page 9.

3.Insert screwdriver (not included) through the U-shaped opening in the subbase to fit belt over drive pulley. (Fig. 26)

FIG. 25

DRIVE GEAR

FIG. 23

FIG. 24

FIG. 26

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