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Version: 20221219
7.
Service and maintenance
A.
Tightening and re-tightening the Vibro-I top bolts
The 4 nuts (8) on top of each module tower must be tightened with a torque wrench adjusted
to 35 Nm for the 7.5 m², 38 Nm for the 10m², 40 Nm for the 15 m² and 42 Nm for the 20 m²
(The nuts must be re-tightened after 8 hours in operation of the Vibro-I after each re-
assembly).
It is important to note that the nuts should only be tightened as described above. Further
tightening or repeated tightening can result in reduced tension in the internal bolts in the top-
and bottom assemblies which will cause these to come loose when the unit is vibrating.
B.
Inspection of the Vibro-I cushion assemblies
The cushion assembly is a wear part that should be inspected regularly. Through regular
operation the cushions may gradually deflate and as a result lose the cushion effect.
Every 4
–
6 months of regular use the Vibro-I cushion assemblies should be inspected and
maintained as described below.
1.
Disassemble the Vibro-I membrane assembly (see separate instruction above)
2.
Inspect that the cushions in the Vibro-I cushion assemblies are intact and still inflated.
3.
If the cushion is inflated and intact check and/or re-tighten the 8 M8 Allen bolts in the
Vibro-I cushion assembly with a torque wrench adjusted to 4 Nm
4.
If deflated or defect, exchange or re-inflate the cushion (see separate instruction
below)
5.
Re-assemble the Vibro-I (see separate instruction above)