Assembly - Thomson Neff MULI Instructions De Montage Et De Maintenance

Assembly

4 Assembly
The worm gear screw jack is mounted at the shell body or other mounting parts (see chapter
4.6). The shell body is always screwed onto a machined surface (no laminated steel profiles
or similar) to avoid alignment errors or noise.
Side forces need to be absorbed by appropiated guides, otherwise the life of the unit
will be reduced. In addition an exact alignment of the units need to be warranted when
assembled. The tolerances of the four mounting sides are according to DIN ISO 2768-
mH.
Depending on the installation, the worm gear screw jack and the screw must be aligned and
bolted precisely either right angle or parallel to the machine part. Accessibility of grease
nipples must be guaranteed during
service. In order to avoid alignment errors, crank the unit manually and without load over its
entire lifting length. Unequal power demands and/or axial vibration at the outer diameter of
the screw are caused by alignment errors between the worm gear screw jack and its
additional guides.
Correction procedure:
1. Loosen the relevant mounting bolts.
2. Again, crank the worm gear screw jack manually.
3. At an equal power demand align the parts, other-wise:
4. Loosen the relevant mounting bolts and repeat the procedure.
When aligning the worm gear screw jack, under no circumstances must you exert
blows on shaft ends or spindle!
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MULI - JUMBO