Assembly; Installing Sander On Stand - Powermatic 31A Instrucciones De Funcionamiento Y Manual De Piezas

Assembly

Tools required:
wrenches – 10, 13 and 17mm
hex (Allen) wrench – 8mm
Cross-point screwdriver

Installing Sander on Stand

Refer to Figure 5:
1. If the machine is to be secured to the floor,
use high quality lag screws through the four
holes inside the bottom of the stand (see
Figure 2 for hole center dimensions). If
using a mobile base, be sure to lock the
wheels before assembling, operating or
making adjustments to the sander. (A
mobile base for your sander – part no.
708118 – is available from Powermatic.)
2. The sander is shipped with the belt arm in
horizontal position. Pull out on the index pin
and raise the arm to vertical position, as
shown in Figure 5. This will better balance
the sander as you place it on the stand.
Allow the index pin to pop back in to ensure
the belt arm is secure.
3. Position the sander on the stand making
sure to orient it properly, as shown. Also,
make sure the loose end of the drive belt
below the disc is pulled down and guided
through the rectangular hole in the stand.
4. Secure the sander to the stand with four M8
x 25 hex head screws (BB), four M8 lock
washers (CC) and four M8 flat washers
(DD). NOTE: Hand tighten the screws only
until all four are inserted; then tighten them
completely with a 13mm wrench.
Refer to Figure 6:
5. The drive belt is already mounted on the
disc pulley behind the disc, as shown in
Figure 6. However, it should be checked to
ensure that it is in the pulley groove.
6. Loosen the top hex nut on the tensioning
screw with a 17mm wrench, and rotate the
lower hex nut to raise the motor platform
high enough to position the drive belt
around the motor pulley.
7. When the belt is in the motor pulley groove,
tension the belt by rotating the lower hex nut
downward out of the way, and tightening the
top hex nut to lower the platform. When the
belt is tensioned properly, tighten the lower
hex nut against the platform to secure the
setting.
Figure 5
Figure 6
(viewed from front of machine)
NOTE: Proper tension is achieved when there is
moderate deflection (about 1/2") in the belt
midway between the two pulleys. After a period
of use, re-check the belt tension, as new belts
have a tendency to stretch slightly during the
breaking-in process.
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