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W H I T E
A X M I N S T E R
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Parts Identification & Description...
Headbox
This is the ‘morticing machine’ and the descriptions of its various parts and
components are detailed as follows:-
Headbox casting
This is the main casting to which the motor, chuck and other
(See figs 5,6)
components are attached, which holds the butt of the chisel and takes
the force of the cut as you pull the chisel into your work.
To the left of the casting there are three gib strip adjusters to keep the
headbox stable while it is being moved up/down the support
column slides.
The motor
Standard 230V 50Hz single phase four pole motor rated at 370W,
(See fig 5)
mounted on the top of the headbox.
On/Off switch
The switch assembly is mounted in a box which is bolted to the side of
(See fig 5a)
the Motor assembly. The two button switches are marked with the
standard ‘O’ for stop and ‘I’ for start. The assembly is an NVR type so
any loss of the supply during operation, when re-established, will not
cause the motor to restart.
Auger mounting
A 13mm drill chuck that is mounted directly onto the motor shaft. Access
chuck
to the chuck is via the doors on either side of the headbox. The chuck
(See figs 7a,7b)
holds the auger, which drills out the bulk of the timber as the body of the
chisel squares out the mortice.
Chisel mounting
The chisel mounting flange is an annular housing machined at the
flange
bottom of the headbox. It has a 3/4" adaptor pressed into it, which is
(See fig 5b)
used to clamp the chisel in position.
Chuck access
The keyed chuck is accessed via openings on either side of the
doors
headbox casting. Hinged doors cover these apertures,and are held
(See figs 5,6,7a)
closed by a sprung catch moulded into each door.
Headbox support
The support column is a pillar casting which houses the rise and fall
column
mechanism assembly and is bolted to the rear of the base casting by
(See fig 6)
four M10 bolts and washers. Two slides, one on either side at the front
of the pillar provide the vertical travel for the headbox assembly
to plunge the chisel when the operating lever is pulled down.
Counterbalance
This is a gas powered return strut mounted to the left side of the
return spring
headbox casting which acts between the support column and the rear of
(See fig 6)
the headbox to counterbalance the weight of the motor and headbox
assembly.
Double depth
These are located on the right side of the support column, and are
stops
two ring collars which can be locked in the required position by
(See fig 5)
tightening the star knobs to clamp the collars in position on the depth
stop assembly to set the height of the headbox rise and the depth of the
mortice.
