Axminster AWHBS250N User Manual page 14

Identification and Parts Description...
W
A X M I N S T E R
W H I T E
Upper saw
wheel
(Continued)
Blade tensioning The blade tensioning knob, at the top of the machine, has an anchored
knob
Upper blade
guide and guard rear thrust bearing that keep the blade stable (straight and untwisted)
Upper blade
guide height
clamp
Saw table, tilt
assembly and
scale
Saw table insert The saw table insert fits into the round recessed groove in the centre of
Lower blade
Guide fence
14
(The yoke is driven up or 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.
threaded tube connected to it. A bolt passing through the shoulder of
the yoke is threaded into the tube. As the knob is turned, so the bolt
(and the yoke) is moved up or down and tensions or de-tensions the
blade.
The upper blade guide assembly mounts the two side bearings and the
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 clamps through the guide mounting leg and the main
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
arrangement. Loosening the butterfly nut allows the table to be tilted up
to 45 degrees clockwise (See Fig 4,4a). There is a hole in the frame
under the table, into which a bolt with a pair of lock nuts could be fitted
to act as a pre-set stop when bringing the table back to the level
position. Without this bolt fitted the table can be tilted to 5 degrees
anti-clockwise.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 is a slot machined in the table to accept the slide of
the mitre fence. There is also a machined recess into which a Measuring
Scale Decal is fitted. (See Fig 5)
the table (See Fig 8). It not only fills the round void, it also supports the
work piece below the saw in order to minimise 'breakout' from the
sawcut. The table insert that is supplied is for general work, and as such
has a fairly wide slot, to allow the fibre strands from general redwoods
and whitewoods to be carried through by the saw blade. Alternative
table inserts with much narrower slots should be made when carrying
out very fine work, where the breakout must be kept to a minimum.
The lower blade guide assembly is mounted on the main saw frame
below the table, it mounts two side guide bearings that help to keep the
blade stable (straight and untwisted) below the table during the sawing
operation (See Fig 9).
The guide fence is mounted over the front and rear edge of the table. It
is clamped in position by the lever handle protruding from the front edge
of the guide (See Fig 5).