Axminster AWEBDS46 MkII, Руководство пользователя

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Identification and Description of the Sander
Belt tensioning The belt-tensioning device is a cranked lever; pivoted about halfway
lever along its length on a pin set in the underside of the linisher chassis. A
(See fig 19) spring is connected to the end of the cranked part of the lever, which
pulls it towards the end of the chassis. The idler drum is mounted in a
yoke. The stem of the yoke is slotted; this slot also fits over the pivot pin.
The yoke is also fastened to the lever, such that the movement of the
lever pulls the yoke down the slot releasing the tension of the idler drum
against the belt. The cranking of the lever is to enable an ‘overcentre
hold’ of the lever when it is moved to the ‘untension’ position against the
action of the spring. When the lever is pushed in the opposite direction,
it moves the yoke back up the slot so that the idler drum is held against
the belt under the pressure of the spring.
Tracking The belt is tracked by pivoting the yoke with the idler drum about the pin
adjuster in the chassis. The control of this movement is effected by a Star
(See fig 19) knobbed bolt fitted through a hole in the linisher chassis and introduced
into a threaded hole in the side of the yoke. The yoke is held in position
using a spring acting between the chassis and the yoke, with its actual
position governed by the adjusted length of the threaded bolt.
Swivel mandrel This is the casting that mounts the linisher to the main machine chassis,
casting the casting forms a swivel joint over the drive shaft mandrel. The casting
(See fig 19) is split and is clenched onto the mandrel using a bolt through the two
cast lugs. Slackening the bolt allows the linisher to be tilted up to the
vertical position.
Dust extraction The dust extraction port is moulded into the chassis cover, directly
port below the dust deflector over the drive drum. The lower section of the
(See fig 19) chassis is accessed by the extraction port, so the resulting draught will
remove the dust from the disc sander, and also encourage airflow past
the motor.
Linisher platen This is the flat surface of the machine that supports the belt and
(See fig 23) maintains it in plane during sanding operations.
Motor The motor is housed in the chassis body. A pulley and drive belt connect
(See fig 27) the motor shaft output to the pulley on the drive drum.
Air vents Preformed ventilation slots in the lower cover plate to allow air to be
(See fig 24) ducted to the motor for cooling and into the dust extraction system.
Ensure that the air vents are not covered during operation and that they
do not become clogged.
Disc table A good-sized table mounted on a support casting. The Table has a ‘T’
(See fig 17) slot machined into it, parallel to the front edge to allow the mounting of
the mitre fence attachment. The underside of the front edge of the table
is bevelled so that the table can be tilted down without fouling the
sanding disc.