7.1
2
Maintenance
7.1
2
The Clamp
Adjusting the Clamping Pressure
The pressure of the clamp is in relation to the amount of
pressure applied to the operating handle. However in
time the maximum clamping pressure can reduce due to
wear on the friction block (hidden within the machine),
compensation for this can be made by adjusting the two
small grub screws in the housing as shown. Turning the
screws clockwise until they stop moving them undoing
them one full turn should give an acceptable pressure,
but further small adjustment can be made to increase or
decrease the pressure as required. Care should be taken
not to tighten either grub screw fully or this will result in
undue wear of the friction plate.
Clamp Alignment
When cutting tough materials it is essential that the
clamping system operates at its' optimum, the moving
clamp bar must press evenly onto the board being cut
and not clamp it only at the top or bottom.
1. Open the clamp by at least 1-2mm and remove the
plastic cover strip situated above the clamp handle it just
clips out of place, use the end of a small steel rule to
lever it from its' groove.
2. The clamp adjuster is at the top end of the push rod
and is locked in position by two locking nuts.
n
The silver nut has a normal right-handed thread,
slacken it using a 10mm wrench by turning it
counter-clockwise when looking from below.
n
Now slacken the black nut, this has a left hand thread
and should be turned clockwise when viewed from
below.
n
The 'adjuster' is the hexagonal bar between the two
nuts, by turning it with the spanner it alters the clamps
alignment with the back of the machine.
3. Rotate the adjuster whilst observing the clamp from
the side and bring the clamp into parallel.
4. To check for parallel use 2 pieces of A4 paper, place
one under the bottom end of the clamp and hold the
other at the top end whilst depressing the clamp
handle, check that the clamp firmly grips pieces
of paper.
5. Tighten the two locking nuts whilst holding the
adjuster in position with the second spanner, then
operate the clamp a few times, check and adjust
further if necessary.
6. Finally, replace the plastic cover strip.
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