Metrohm 872 Extension Module Suppression – MCS - Manual (Page 23)

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3 Installation
872 Extension Module Suppression – MCS
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3.4 Transport locking screws
To avoid damage to the vacuum pump during transport, the pump is
secured with transport locking screws..
Remove these transport locking screws before the initial start-up.
Removing transport locking screws
1 Remove all of the transport locking screws with the 4 mm hexagon
key (6.2621.030) and keep them in a safe place.
Warning
In order to avoid damage to the vacuum pump, the transport locking
screws must be remounted each time the instrument undergoes major
transport.
3.5 Peristaltic pump
3.5.1 Principle of the peristaltic pump
The Peristaltic pump is used for pumping sample and auxiliary solutions. It
can rotate in both directions.
The peristaltic pump pumps liquids according to the principle of displace-
ment. The pump tubing is clamped between the rollers (4-3) and the tub-
ing cartridge (4-5). During operation, the peristaltic pump drive rotates
the roller hub (4-2), so that the rollers (4-3) push the liquid forward in the
pump tubing.