DEZ
S
ERIES
1000
I
NSTALLATION
,
O
PERATION AND
M
AINTENANCE
M
ANUAL
24
3. Refer to Figure 11. Apply masking tape to the
face of the rotor on the right and left sides of the
crack. Allow for about two “corrugations” on
each side of the crack.
4. Apply 100% silicone to the crack, keeping the
angled cut of the silicone tube parallel and very
close to the surface of the rotor to ensure good
penetration. For best results, apply the silicone
in an upward motion to push the silicone into the
crack.
5. After applying the silicone, take the piece of
cardboard, and at a 45° angle, drag the
cardboard over the bead to press the silicone
into the crack and make the surface of the
silicone smooth and flush with the face of the
rotor. This will further enhance the penetration
of the silicone and will ensure that the silicone
does not protrude above the surface of the
rotor.
6. Immediately after pressing the silicone into the
crack with the cardboard, remove the masking
tape. This must be done before the silicone
starts to cure or “skin over”.
7. Allow the silicone 24 hours to fully cure prior to
running the unit. Should any questions or
problems arise, contact STULZ Product
Support. See section 8.0, PRODUCT
SUPPORT, for contact information.
Figure 11 - Rotor Scratch Repair
Masking
tape
Crack
Rotor
surface
Apply silicone using an
upward motion to push
silicone into crack
