Advertisement
Fig. 2:
Bearings, rings
and shafts:
V
Dismounting roller shaft with rings for replacement of bearings, rings or shaft.
This should be done in the workshop.
Side section - DISMOUNTING:
For this, an approved crane capable of lifting at least 1000 kg is required.
The roller should be positioned with the appropriate section beneath the crane
- preferably coupled to a tractor, otherwise, a hydraulic pump with a single- acting
and a double-acting valve is needed. It must be able to deliver a pressure of at least
170 bar. Connect the opposite section to the guide over the transport bearing so
that it can still be moved up and down. Using the single- acting val ve, lift the side
sections clear of the transport bearing. U se the double-acting valve to swing the
side section concemed about 1 m out from the side.
Start carefully with two chains/slings around the rings about 1 m apart. Lift until the
chains/slings are taut. Thoroughly loosen the bearing nuts. Lift with the crane until
the screws are loose. Remove them and the whole shaft can be manoeuvred out.
Clear all grease from the bearing housings. Remove any burrs on the protruding
shaft end with a file. Loosen the pointed screws in the bearings; the bearings
can then be pulled out.
When the stop ring with the two pointed screws has been removed, the roller
rings can be pulled off the shaft.
MOUNTING:
Cambridge rings. Start with a smooth ring with the "nose" pointing inwards (see fig.
3). This is followed by a serrated ring with the smooth side facing outwards. This
must be pushed right over the boss ("nose") of the smooth ring. Fill the shaft up in
this way until a space of about 12 cm remains. Omit the last serrated ring. Ensure
that the rings are packed tight together.
FLSS-6
6
Advertisement
