Sealey SM914 - Manual (Page 4)

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4.7 Changing the sanding belt.
4.7.1 Before the sanding belt can be changed, the protective cover
on the back/underside of the belt assembly must be removed.
4.7.2 Move the belt assembly into the vertical position as described
in Section 4 and loosen the two screws indicated in fig.8.
4.7.3 Unhook the cover from the sanding belt assembly by lifting it
up and away from the sander. Put to one side.
4.7.4 Release the tension from the belt by pulling open the
tensioning lever as indicated in fig.7B.
4.7.5 Slide the old belt off the rollers. Slide the new belt into position
on the rollers and re-tension it as described below.
4.7.6 Take hold of the belt tensioning lever and ease it back into
position taking care not to trap you fingers behind the lever.
 WARNING! In the open position the lever is spring loaded and
will snap shut if pushed.
4.8 Tracking adjustment of new belt. (See fig.7A)
4.8.1 When a new belt is fitted the full tracking procedure should be
followed.
4.8.2 To check if the belt is tracking correctly, turn the sander on and
off again immediately and note how the belt is running. If the
belt runs true on its rollers with no deviation, no tracking
adjustment is required.
4.8.3 If however the belt should begin to deviate from true it can be
corrected using the tracking adjustment control knob seen in
fig.7A. Turning the knob clockwise by a ¼ turn will cause the
belt to move towards the front of the machine (i.e. the disc
side). Turning the knob counter clockwise by a ¼ turn will
cause the belt to move towards the back of the machine.
4.9 Dust extraction port. (See fig.1M)
4.9.1 Where available the sander should always be connected to a
dust extraction system via the Ø62mm port provided on the left
hand side of the machine. It is also recommended that the
operator should still wear respiratory protection as a dust
extraction system cannot eliminate all dust produced during the
sanding process.
 WARNING! DO NOT allow two people to use the sander at the
same time. Remember that even though you are using only
one of the sanding facilities, the other is still turning and
could represent a hazard to you or other people nearby.
5.1 Using the sanding disc.
5.1.1 Ensure that the work support table is correctly fixed to the
sander. Adjust the angle of the table and/or mitre guide
as required by the job in hand.
5.1.2 Plug the sander into the mains power supply.
5.1.3 Switch on the sander using the green ON button. See fig.1(J).
5.1.4 Allow the disc to reach full speed before bringing the
workpiece into contact with it. Hold the workpiece firmly down
on the table. Always work left of centre on the disc so that the
movement of the disc tends to force the workpiece down onto
the table. Do not use excessive force to remove material but
allow the abrasive disc to do its job.
5.1.5 Switch off the sander using the red OFF button. See fig.1(J).
5.1.6 Allow the disc and belt to come to a standstill before leaving
the sander.
5.1.7 DO NOT leave the sander running unattended.
5.1.8 Unplug the sander from the mains power supply when no
longer required.
5.2 Using the sanding belt.
5.2.1 Ensure that the sanding belt support/guard is correctly fixed to
the sander. See section 4.4.
5.2.2 Move the belt assembly to the vertical or horizontal position (or
any angle inbetween) as described in Section 4.5 and ensure
that it is locked in position.
5.2.3 Plug the sander into the mains power supply.
5.2.4 Switch on the sander using the green ON button. See fig.1(J).
5.2.5 Allow the belt to reach full speed before bringing the
workpiece into contact with it, close to the support/guard. (The
belt moves left to right and will force the workpiece up against
the support).
5.3 Broad surface sanding.
5.3.1 When sanding broad flat surfaces hold the workpiece with a
firm grip and bring it lightly down onto the moving belt. Apply
only enough pressure to allow the sanding belt to remove
material.
5.3.2 Keep fingers away from the sanding belt, especially when
sanding thin workpieces. Consider using a specially
made pushing or holding down stick.
5.3.3 Switch off the sander using the red OFF button. See fig.1(J).
5.3.4 Allow the disc and belt to come to a standstill before leaving
the sander.
5.4. Sanding inside-curves.
5.4.1 When sanding inside-curves, always use the right hand end of
the sanding belt, holding the workpiece firmly and keeping
fingers away from the belt.
5.4.2 Keep the curve pressed firmly against the idler drum and move
the workpiece evenly back and forth across the drum. Only
apply enough pressure to allow the belt to remove material
gradually.
5.4.3 Switch off the sander using the red OFF button. See fig.1(J).
5.4.4 Allow the disc and belt to come to a standstill before leaving
the sander.
5.4.5 DO NOT leave the sander running unattended.
5.4.6 Unplug the sander from the mains power supply when no
longer required.

WARNING! Disconnect from the mains power supply before
changing accessories, servicing or performing any
maintenance.
6.1 General Maintenance.
6.1.1 Before each use check the condition of the power cable for
wear or damage.
6.1.2 Before each use check the sanding disc and belt for wear or
damage.
6.1.3 Before each use check moving parts for alignment or binding
issues.
6.1.4 Clean and vacuum dust from the motor housing and other
sander parts on a regular basis.
6.1.5 Changing the sanding disc. Refer to Section 4.2.
6.1.6 Changing the sanding belt. Refer to Section 4.7.
6.1.7 For all other maintenance issues refer to your local Sealey
Dealer.
5. OPERATING INSTRUCTIONS
6. MAINTENANCE
© Jack Sealey Limited Original Language Version SM914 Issue No.1 07/12/12
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Environmental Protection.
Recycle unwanted materials instead of disposing of them as
waste. All tools, accessories and packaging
should be sorted, taken to a recycle centre and disposed of in
a manner which is compatible with the environment.
WEEE REGULATIONS. Dispose of this product at the end of
its working life in compliance with the EU Directive on Waste
Electrical and Electronic Equipment. When the product is no
longer required, it must be disposed of in an environmentally
protective way.