Manual TwinSaw CDC double cut saws
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7. Blade change
7.1 Bolted system Ø 235 mm
Machines: Adamant 2747 – CDC 2224 - CDC 2235
Remember that carbide teeth are extremely sharp.
Always wear gloves when undoing and tightening
Before your hands are near the teeth or even the
blades:
REMOVE THE POWER PLUG!
Legen Lay the machine on ist side.
Remove the main nut using the special tool or a 19 mm wrench.
The blades have to be locked into position by using the lock-button
or inserting the blade of a screwdriver through two aligned holes to
prevent movement.
Once the main nut is removed it is possible to see the inner shaft,
the outer- blade drive spline and the outer blade adapter, to which
the outer blade is bolted. The latter can now be detached along
with the blade.
As the spline and adapter are machined to very fine tolerances it
may not be possible to free the adapter by finger force alone. The
adapter can be released either by using the special extshould be
positioned centrally above the shaft and then inserted into the slot
in the adapter, or by striking the whole machine with its inner shaft
against a block of wood. This must be done very carefully and on
no account use anything other than wood, otherwise there is a risk
of damage to the shaft, thread or gearbox.
After the outer blade system had been detached the three mouting
bolts holding the inner blade can be removed using the 3 mm Allen
key provided.
Examine the bolts and replace any whose heads have become
rounded.
Once the bolts have been removed the inner blade can be
withdrawn.
The outer blade can now be detached from its adapter by removing
the three bolts with the Allen key.
Note the position of the blade with respect to the adapter. Both
adapter discs are fixed to the outer face of the blade. The heads of
the mouting bolts must lie flush in their recesses, otherwise they will
collide when the saw is rotating.
Never use bolts other than the original replacement items. The two adapters are matched to
an accuracy of 1/1000 mm. If the thread on one is damaged, both adapters must be
replaced. Otherwise the entire gearbox unit may have to be renewed. It is better – and much
cheaper – to order a new set of bolts from us.
Inspect the adapters for damage and dirt ingress.
Check the spline on the outer (loose) adapter for wear and fit. The spline is a potential failure
point and can easily replaced if there is any doubt as to its condition.
