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Porter-Cable 690 - Plunge Base Installation and Subbase Alignment; Installing Motor in Plunge Base

Porter-Cable 690
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8
9. Tip the router so bit is clear of the wood surface. Turn motor unit (F), Fig.
3 CLOCKWISE until the index line (D) on the motor housing reaches the
desired depth indicated on the ring.
10. Tighten clamp screw (A), Fig. 3 firmly.
NOTE: Setting the index line to
1
/4" on the ring means the cutting
edge of the bit is exposed
1
/4" below the base.
ADJUSTING SUBBASE ALIGNMENT
Applications using a templet guide require the bit to be centered within the
guide. This, in turn, requires the center hole in the subbase to be in line with
the collet of the motor unit. Your model has an adjustable subbase which has
been aligned at the factory. If the subbase has been removed and/or
readjustment is required, proceed as follows:
CAUTION: Be sure power switch is in “OFF” position and tool is
disconnected from power source to avoid accidental starting of
motor which could result in personal injury.
1. Loosen subbase mounting screws just enough to allow subbase to move
on base.
2. Loosen clamp screw (see Fig. 4), and adjust motor so that the collet nut
engages the center hole in the subbase. Allow the subbase to center itself on
the collet nut. Tighten clamp screw.
3. Tighten subbase mounting screws securely.
6931 BASE
INSTALLING MOTOR IN PLUNGE BASE
1. CAUTION: DISCONNECT TOOL FROM POWER SOURCE.
2. Support clamp (see Fig. 5) and loosen motor clamp screw approximately
1
/2", with allen wrench (furnished).
3. Insert motor unit into base with switch positioned at front of left handle
(see rear view in Fig. 6), and align the four pins (A) Fig. 6, in the motor case
with the slots (B) Fig. 6, in the base.
4. Seat motor in base and tighten clamp screw to secure.
Fig. 4
SUBBASE
SCREWS
COLLET NUT
CLAMP SCREW
899749 - 11-30-01.qxd 2/12/02 2:24 PM Page 8

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