Porter Cable PCB370SS Manuel D'instructions page 15

BELT TENSION (FIG. L)
WARNING
!
To avoid injury from an accidental start, ALWAYS make
sure the switch is in the "OFF" position, the switch key
is removed, and the plug is not connected to the power
source outlet before making belt adjustments.
1. To release the belt tension, turn the belt tension
lock knobs (1) on each side of the drill press head
counterclockwise.
2. To tighten the belts, push the belt tension handle (2)
toward the rear (motor) end.
3. Lock the two belt tension lock knobs (1) by turning
clockwise.
NOTE: Belt tension is correct if the belt deflects
approximately 1/2 in. (12.7 mm) when pressed at its
center.
NOTE: To loosen the belts, pull the belt tension
handle toward the front (switch) end.
Fig. L
2
LASER ADJUSTMENT (FIG. M, N, O)
NOTE: The Laser Assembly has been installed and
preset at the factory. It should, however, be checked and
any adjustments made before operating the drill press.
It should also be rechecked periodically, as constant
machine vibration may cause it to become
misaligned.
WARNING
!
A Laser light is radiated when the laser guide is turned
on. Avoid direct eye contact. Always unplug the drill
press from the power source before making any
adjustments.
1. Remove the guards (A1) to access the laser
assemblies.
2. Take a length of board (7) and draw a perpendicular
line (4) on one side using a square.
3. Place a small drill bit (1) in the chuck (2), then place
the board (7) on the table on edge against the drill bit
with the marked line side toward the back of the drill
press.
NOTE: The table should be in horizontal position and
locked. Verify that the line (4) is perpendicular to the
table.
1
4. Connect power to the drill press, and turn on the
laser using the button at the front of the drill press
head.
Fig. M
A1
Fig. N
2
4
3
Vertical Alignment (FIG. M, N)
5. Loosen the three set screws, then manually rotate
the laser assembly (8) and move the board from
side to side as required until the laser light (3) lines
up with the board marking (4) to look like (5). Then
carefully tighten the three setscrews (9). Repeat
step 5, if necessary, until the light and marking are
aligned.
6. Adjust the other laser in the same manner. Two
parallel laser markings should look like 5 and 6 in
Fig. N – the distance between the lines will vary with
board thickness; however, the lines must be parallel.
15
12
Vert adj
8
cross hair adj
1
5
7
9
13
6