Sealey SM94 - Manual (Page 3)

SM94.V4 Issue No.1 031209
Original Language Version

wArNiNG! Ensure the mortiser is switched off and is
unplugged from the mains power supply.

wArNiNG! use gloves or a cloth when handling drill and
chisel bits, as the ends are very sharp. remember to remove
gloves and/or cloth before starting the mortiser.
Note: If the mortiser has previously been set up for drilling,
the chuck and arbor extension must be removed before a
chisel can be installed.
5.1 Ensure that the socket cap chisel retaining screw (fig.5-3) is
not protruding through the chisel mounting bush (fig.5-2) so
that a chisel can easily be inserted into the bush.
5.2 When the chisel/drill bit is correctly set up there should be a
clearance of between 0.8 and 1.6mm between the end of the
chisel and the drill cutting spur. (See fig.5) to do this use the
following procedure.
5.3 open the head side covers (fig 5.1) to expose the chuck
(fig 5.6). Ensure that the jaws in the chuck are sufficiently
retracted to allow the chosen drill to fully enter the chuck.
5.4 remove the protective cover from the end of the chisel/drill
set and hold a protective pad or small piece of wood on the drill
tip. Push the chisel/drill set up into the chisel bush until it
stops.
5.5 Now rotate the chisel portion so that the opening in the side
faces to the left or right. If the workpiece is to be moved
progressively to the right the opening in the side of the
chisel should face to the right. If moving the workpiece to the
left then face the opening to the left. Do not face the slot to
the front or rear because wood chips produced during the
cutting process will not be able to escape from the chisel.
5.6 tighten the chisel retaining screw (fig.5-3) using the hex key
provided.
5.7 Keeping the protective pad on the drill tip, push the drill up
into the chisel until the drill spur has a clearance of 0.8 -
1.6mm from the chisel (See inset diagram in fig.5.) then
tighten the chuck using the chuck key provided.
5.8 Allow the side covers to close and remove any protection
from the chisel/drill tips.
5. iNsertiNG chisel & Drill Bit
cap bolts provided (7). Ensure that the threaded hole is at
the back. tIghten the bolts using the 6mm allen key
provided.
4.3 work table. (See 12 in figs.1 & 2) Attach the Work table to
the cast base using the two countersunk M8 x 25mm table
fixing screws (13).
4.4 Back stop Assembly. (See fig.2) Lay the Back Stop onto
the work table with the long extension resting in the guide
block (8). Place the clamp Lever Post (see 6d in fig.1)
through the slot in the guide and screw it down by hand into
the threaded hole in the Back Stop mounting block.
4.4.1 Place the clamp Lever (see 6c in fig.1) onto the top of the
clamp post ensuring that it engages with the splines on the
post.
4.4.2 Insert the spring (6b) into the recess in the top of the clamp
lever. Secure the clamp lever assembly with the clamp lever
fixing (6a) screwed down through the spring.
4.4.3 the movement of the clamp lever is restricted by its proximity
to the two pillars. to overcome this, the lever can be lifted up
from the splined top of the post and rotated round to a new
position in order to move it again. Ensure that the lever
re-engages with the splined post when dropped down again.
4.5 hold Down clamp Assembly. (See figs.1 & 2) Slide a
washer (4) over the threaded shaft of the hold down clamp
adjustment knob (5). Insert the threaded shaft through the
vertical extension of the Back Stop (3) and slide on another
washer (4). Place the hold down clamp on the front face of
the Back Stop extension and screw the threaded shaft into
the clamp until it is firmly fixed on the Back Stop.
4.6 tool tray Assembly. take the tool tray (1) and fix it to the
back of the head as shown in fig.2 using two M6 x16mm
socket cap bolts & washers (2).
4.7 mounting the mortiser. Before use, attach the mortiser to a
stable work bench using the mounting points situated behind
the wood working table (fig.2) and 13mm bolts of the
appropriate length which are strong enough to take the
weight of the unit and the workpiece.

wArNiNG! failure to adequately mount the mortiser could
result in damage and/or severe personal injury.
Fig.5
Fig.4