7
Insert the drift key (V, Fig 6) into the
aligned slots and tap lightly. Have
another person (or a protected table)
catch the chuck and arbour assembly
as it falls away from the spindle.
Fig 6
7.2 Adjusting the Depth Stop
To drill multiple holes at the same
preset depth, use the depth stop (K,
Fig 7).
With the drill bit in the chuck, lower
the down feed handle to advance the
drill bit to the work piece.
Lock the depth stop to the desired
cutting depth.
Fig 7
The drill bit will now advance only to
this point.
7.3 Changing Spindle Speeds
Unplug the machine from the power
source.
Loosen the locking screw (W, Fig 8)
on the pulley cover, then open the
cover.
Fig 8
Loosen two slide bar lock knobs (U)
found on each side of the head
assembly.
Release the belt with the tension lever
(B).
Change the belt location according the
speed chart and the speed you desire
(Fig 9).
Fig 9
Tension the belt and tighten both lock
knobs (B, Fig 8).
Belts are properly tensioned when
finger and thumb pressure midway
between the two pulleys causes
approximately 10 mm deflection.
Close and lock the pulley cover with
the locking screw (W, Fig 8).
7.4 Table Tilt Adjustment
Disconnect the machine from the
power source (unplug).
Loosen the hex cap bolt (X, Fig 10) to
tilt the table.
Caution:
Only loosen the hex cap bolt slightly,
otherwise the table assembly will
separate from the column and fall.
Fig 10
Tighten the hex cap bolt.
7.5 Return Spring Adjustment
Disconnect the machine from the
power source (unplug).
The return spring is adjusted at the
factory and should not need further
adjustment.
If adjustment is necessary:
Loosen the lock nut (A, Fig 11)
approximately 6mm (do not remove).
Fig 11
Firmly hold the coil spring cover (B).
Pull out the cover and rotate until the
pin (C) engages the next notch in the
coil spring cover. Turn the cover
clockwise to decrease tension and
counter-clockwise to increase tension.
Tighten the lock nut (A). Do not over-
tighten. Nut should not contact the
housing when tight.