AHB marvel 8 mark III Series, Руководство пользователя

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MAINTENANCE MARVEL 8 MARK III
© MARVEL MFG. CO., INC. MANUAL 8SDN10871N (04/08)
G-9
BLADE PRESSURE BLOCK
ADJUSTMENT AND
REPLACEMENT
Each guide block has a blade pressure block
which supports the back of the blade during a
cut. The pressure blocks are mounted on an
eccentric pin so the plates can be adjusted as
they wear. The pressure plates are easily
adjusted by performing the following steps.
IMPORTANT: Install a new blade before
adjusting the pressure blocks.
1. Move the saw column to the full retract
position.
2. Turn off the machine's main electrical
disconnect switch and lock it in the "Off”
position.
The main electrical disconnect
switch must always be turned
to the "Off" position and
locked before adjusting,
servicing or cleaning the saw.
Failure to do so can result in
serious injury or death.
3. Open the upper and lower band wheel doors
and the blade guard.
4. Raise the upper guide arm as high as it will
go and lower the lower guide arm.
5. Rotate the top and bottom blade guide
blocks 90º to position the blade 90º from its
normal operating position.
The eccentric pins (one per guide block) are
slotted for easy adjustment with a screw driver.
Because each pin's eccentric lobe lines up with
the screwdriver slot, when the slot is horizontal
the guide block is either fully retracted or fully
extended. It is not necessary to turn an eccentric
pin more than 180º to retract the pressure block.
6.
Turn each pin counterclockwise to retract
the pressure blocks fully from the blade.
NOTE: If you are replacing the pressure blocks,
remove the eccentric pin and replace the old
pressure block with a new one after loosening
the blade slightly as described in the previous
blade changing procedure. Make sure the new
block is installed so the carbide edge will be in
contact with the blade. After installing the new
block, leave it in the retracted position and go to
step 7.
In the photos of an eccentric pin, the
screwdriver slot is horizontal indicating the
pressure block is either fully extended or fully
retracted.
WARNING
Upper Blade Guide
(shown with handle
raised)
Blade (shown in
cutting position)
Eccentric Pin (shown with screwdriver
slot in horizontal position)
Table Top
Eccentric Pin (shown with screwdriver
slot in horizontal position)
Upper Blade Guide
(shown with handle
lowered)
Blade (shown
turned 90º)
Lower Blade Guide (shown
with handle raised)