Axminster AWHBS350N Instructions Manual page 13

Main saw frame
Upper and lower
cover doors
Upper saw
wheel
Blade tensioning
wheel
Upper blade
guide and
guard
Upper blade
guide height
Saw table, tilt
assembly
Saw table insert
The main body of the machine that all the other parts are mounted upon.
The two doors that cover the upper and lower saw wheel compartments.
There are interlocks fitted to both doors so that the machine cannot
operate if either door is left open.
The upper saw wheel is mounted on double bearings on an axle that is
mounted to a tilting plate. (To provide the fore and aft tilt movement that
controls the blade tracking). The tilting plate is hinged to a base plate
that is mounted in slides in the upper saw wheel compartment.
(The base plate slides up and down allowing increasing or decreasing of the
blade tension). The saw wheel is fitted with a rubber tyre to give better grip to
the saw blade, and smoother running. It also allows the blade to be tracked in the
centre of the wheel; unlike the bad old days when the blade had to be tracked off
the front edge of the wheel to safeguard the teeth.
The blade tensioning wheel, at the top of the machine, is connected to a threaded
rod that is engaged in the base plate of the upper saw wheel axle assembly. The
threaded rod is anchored in the top of the saw frame which allows the base frame
to be driven up and down in its mounting slides and tension or de-tension the blade.
The upper blade guide assembly mounts the two side bearings and the rear thrust
bearing that keep the blade stable (straight and untwisted) above the table
during the sawing operation. The guard is an integral part of the guide mounting
leg to which the guide assembly is bolted so it is always in place when the guide is
raised or lowered to its working position.
The upper blade guide height clamp is a butterfly nut and coach bolt
arrangement that clamp through the guide mounting leg and the main clamp
saw frame. So, loose it will allow the mounting guide leg to be moved up and down,
tightened it will clamp the leg in position against the frame.
The saw table is mounted on the tilt quadrant, which is, in turn mounted in the
quadrant housing and secured via a coach bolt and butterfly nut and scale
arrangement. Loosening the butterfly nut allows the table to be tilted up
to 45 degrees clockwise. There is an adjustable bolt with a lock nut,
screwed into the underside of the table, which acts as a preset stop
when bringing the table back to the level position. There is a scale and
pointer attached to the rear of the quadrant and the housing to measure
the angle to which the table has been tilted. There are two slots machined
in the table to accept the slide of the mitre fence.
The saw table insert fits into the round recessed groove in the centre of the table. It
not only fills the round void, it also supports the work piece below the saw in order to
minimise 'breakout' from the saw cut. The table insert that is supplied is for general
work, and woods and white woods to be carried through by the saw blade. Alternative
table inserts should be made when carrying out very fine work, where the breakout
must be kept to a minimum.
Illustration and Parts Description
13