Brobo Group
brobo.com.au
CHAPTER 5 - Adjustments to the Saw Unit
5.1. Changing the Blade
To replace a worn saw blade:
1) Disengage the linkage arm that is between the guard linkage system & pivot block (at the pivot block by
compressing the spring & moving the bolt through the slot).
2) Slide the saw guard up as far as possible (as if it was opening during a cutting cycle) to gain access to the
spindle nose.
3) Loosen the spindle screws (LH thread), using the 14mm hexagonal wrench provided, & remove the counter
plate. To loosen the spindle screw, insert the wrench (short end) into the socket head cap screw & firmly
knock the wrench with the palm of your hands until the screw is loosened. If this method fails to free the
screw, place a piece of timber under the blade of the machine, & loosen (or tighten) the screw while holding
the saw head of the machine down (blade against the timber).
4) Remove the worn saw blade away from the spindle hub. Using a soft brush, clean the face of the spindle,
counter plate & mounting faces of the blade of any dirt or swarf that was trapped by the previous cutting
cycles.
5) Place the old saw blade into the new blade packaging & disposed of it safely. Carefully mount the new
blade onto the spindle hub, ensuring that the blade is rotating into & towards the back fence, & replace the
counter plate utilizing the drive pins as guides as it passes through the pinholes on the blade.
6) Rotate blade back against the drive pins in a
counter-clockwise
& finger tighten the spindle screw.
7) Firmly retighten the spindle screws, ensuring that the saw blade spins uniformly & aligned parallel with the
safety guard.
8) Lower the outer guards & make certain the pin of the linkage arm is re-engaged with the track on the inner
guard & reconnect the guard linkage.
9) The new blade is ready for use. To check that the blade is performing correctly, carry out a sample cut on
a piece of off-cut.
10) If optional devices are supplied, mount the stock support & rollers on either side of the clamping table.
Normally stock should feed on the
left to right
, but it can be feed from the
right to left
if required.
DANGER – ELECTROCUTION
Make certain that the power to the saw is turned off before proceeding with changing the saw blade.
