Rams - DAL-BO MINIMAX DK-530 CM Manual

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Rams:

Then start with a smooth ring with the "nose" pointing outwards (see fig. 3),
and follow with a serrated ring with the smooth side facing inwards. This
must be pushed right in on the boss ("nose") of the smooth ring. Fill the shaft
up in this way until a space of about 12 cm is left. Omit the last serrated ring
and finish with a stop ring.
Crosskill rings. Fit a stop ring about 12 cm in along the shaft (see fig. 4).
Start with a small ring, then fit a bush, and a large ring above this, the spokes
of which run the same way as on the first ...... And so on, finishing with a
small ring and a stop ring.
Welled rings. Fit a stop ring about 12 cm into the shaft. Start with two rings,
screwed together as shown in fig. 5. Fill the shaft until a space of about 22 cm
is left. Close off the shaft with two rings bolted together and a stop ring.
Loosen the stop ring screws. The projecting shaft ends must be of equal
length. This is achieved by striking the shaft. Make sure that the rings are very
tightly packed. Tighten the stop rings well. It is recommended that the screws
be tightened and loosened a few times to ensure that they grip well.
Then push the bearings in along the shaft ends.
Open up the roller frame as described above under 'Dismantling'. Push the
whole shaft into the frame. If it is a crosskill roller, ensure that the direction of
rotation is the same as shown in fig. 4. Mount the bearings and tighten
securely. Remember to turn the grease nipples so as to allow for
lubrication (fig. 6).
Raise the roller to the vertical position, using the single-acting valve.
The DOUBLE-ACTING VALVE MUST NOT OPERATED until the
single-acting valve is fully extended.
Folding ram:
This can be done with the roller in either the transport or the operating
position, where the ram is in both instances pressureless; but the operating
position is recommended.
Remove the hoses. It is recommended that a bucket be placed underneath to
catch any oil. Remove split pins and washers. The ram, weighing 28 kg,
can be dismounted also.
Assembly is done in reverse order. After assembly, carefully swing the side
sections out and in a couple of times (see under operation) to force out
unwanted air.
Check that the hoses can move sufficiently not to get jammed, and that the
connections are tight.
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