8. Installation
8.1 Clean the hollow shaft bore and the shaft thoroughly to remove all dirt, oil and grease and
ensure a friction coefficient of µ ≥ 0,15 on all contact surfaces. This surfaces are not allowed
to oil or grease.
8.2 Apply a light coat of grease to the outer diameter of the hollow shaft at the point at which the
shrink disc is positioned (picture 8.1, diameter d).
8.3 Insert the shaft into the hollow shaft.
8.4 Push the shrink disc onto the hollow shaft.
A shaft must always be inserted in the hollow shaft when mounting the shrink
disc!
8.5 Tighten the clamping crews by hand. Then tighten all screws with a suitable tool in a
clockwise sequence, turning each screw by a ¼ revolution in each step.
8.6 Continue to tighten the clamping screws uniformly in sequence by
a ¼ revolution until the stepped tapered ring and the stepped
tapered bushing are flush with the screw-side face.
Note: When installing shrink discs with slotted stepped tapered
bushing, begin with the screw to the left of the slot and
tighten the screws as described in Section 8.6.
Installation is distance-controlled. Therefore, it is not
necessary to use a torque wrench!
Replace missing or damaged clamping screws with
equivalent screws of quality grade 12.9 only, grease new
screws like described under 10.2!
9. Disassembly
9.1 Loosen the clamping screws uniformly in multiple steps by ¼ revolution for each step to
prevent misalignment of the clamping surfaces and breaking of screws.
Do not remove clamping screws completely from threaded bores under any
circumstances, as this poses the risk of injury.
9.2 Do not separate the two rings directly. Instead, remove as many clamping screws as
threaded press-off bores in the stepped tapered bushing and turn them into the press-off
bores uniformly until the stepped tapered ring is pressed free of the stepped tapered
bushing.
9.3 Remove the shrink disc from the hollow shaft.
