Porter-Cable PCXB310BS Instruction Manual page 17

UPPER BLADE GUIDES AND BLADE
SUPPORT BEARING (FIG. J, K)
WARNING
!
The blade guard has been removed for clarity
of illustration. To avoid injury, never operate
the band saw without all guards in place and
in working order.
WARNING
!
To avoid injury, turn the switch OFF and
disconnect the saw from the power source
before making any adjustments. NEVER
make adjustments with the machine running.
NOTE: Make sure the blade is tensioned and
tracking properly. Adjust the blade guides and
support bearing after each blade tension and
tracking adjustment. When the upper blade
guides and support bearings are adjusted,
the lower guides and bearings should also
be adjusted.
Blade guides (Fig. J, K)
Blade guides have been set at the factory but
should be checked.
1. Make sure the blade is tensioned and
tracking properly.
2. Loosen the two front hex socket
screws (1) with a 2 mm hex wrench.
3. Move the two guide pins (2) as close to
the blade (3) as possible without
pinching it.
4. Using a feeler gauge, make sure the
space between guide pins and the blade
measured is 0.002 in. (0.05 mm, the
thickness of a dollar bill).
5. Tighten the front hex screws (1).
Fig. J
2
1
2
1
3
17
6. Loosen the side hex screw (4) by turning
counterclockwise with a
wrench supplied.
7. Move the upper blade guide brackets (5)
in or out until the guide pins (2) are just
behind the blade teeth.
8. Tighten the side hex screw (4).
Fig. K
7
2
Support bearing (Fig. K)
Support bearing has been set at the factory
but should be checked.
9. Loosen the hex screw (6), adjust the
support bearing (7) in or out until the
bearing is 1/64 in. (0.4 mm) behind the
blade.
NOTE: This blade support bearing
prevents the blade from moving back too
far and damaging the saw teeth setting.
10. Check the position of blade, it should be
positioned within the face of the support
bearing (7).
11. Tighten the hex screw (6).
LOWER BLADE GUIDES AND SUPPORT
BEARING (FIG. L, M, N)
WARNING
!
To avoid injury, turn the switch OFF and
disconnect the saw from the power source
before making any adjustments. NEVER
make adjustments with the machine running.
NOTE: Make sure the blade is tensioned and
tracking properly. The lower blade guides and
support bearings should always be adjusted
after the blade is tensioned, the tracking is
adjusted, and the upper blade guides and
upper support bearings are properly adjusted.
4 mm hex
6
4
5