16
6. Adjustment of Guides & Further Operations
Fig. 6.2
Thrust bearing
B
Fig. 6.6
Fig. 6.5
A
B
C
CAUTION!
Before carrying out any adjustments or maintenance ensure
that the machine is isolated and disconnected from the
electricity supply.
6.1 Adjusting the Upper Guides
To adjust the upper blade guides, first position the guide assembly relative
to the blade, by slackening off the hex screw - A Fig. 6.1 and moving the
guide carrier until the roller guides are just behind the gullets of the blade
see Fig. 6.3. Next set the roller guides as near as possible to the blade
without actually touching. This is done by unlocking the locking the nut
on each side of the guide adjustment see Fig. 6.1. Do not let the roller
guides actually touch the blade as this will adversely affect the life of the
blade. Finally adjust the thrust bearing to be just clear of the back of the
blade see Fig. 6.4.
Do this by unlocking the hex socket screw B Fig. 6.2. When the correct
adjustment is reached, lock the thrust bearing in position with hex socket
screw B Fig. 6.1.
6.2 Adjusting Lower Guides
To adjust the lower blade guides, first slacken off the hex socket screw - A
see Fig. 6.5, move the guide carrier casting so the guides are just behind
the gullets of the blade. Next set the roller guides as near as possible to
the blade without actually touching. This is done by releasing the hex head
socket screw - B see Fig. 6.5 on each side of the blade. Finally adjust the
rear thrust bearing to be just clear of the back of the blade see Fig. 6.6.
To do this first unlock the Hex socket screw - C see Fig. 6.5 then using the
adjustment knob at the rear, position the thrust bearing Fig. 6.7.
6.3 Adjusting the cutting height
Once the blade is set, the cutting height must be adjusted so there
is maximum guarding for the blade and so that the blade guides are
providing optimum support to the blade. To adjust the cutting height
loosen the rise and fall lock knob and turn the rise and fall handwheel to
raise or lower the guide post/upper blade guide assembly to the desired
height Fig. 6.8. The upper blade guide should provide approximately 5
mm clearance above the workpiece. After the desired position has been set
tighten the guide post lock knob. Always check the guide bearing for slight
adjustment when the height of cut is changed.
Fig. 6.3 Fig. 6.4
Roller guide Thrust bearing
Blade gullet
Fig. 6.8
Rise & fall handwheel
Lock knob
Fig. 6.1
Guide adjustment
A
Locking nut
Roller guides
Guide carrier
Fig. 6.7
Adjustment knob
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