Replacing Peristaltic Pump Hoses - ABB SCC-C Operator's Manual

Replacing Peristaltic Pump Hoses

When should the
Hoses be Replaced?
Replacing Peristaltic
Pump Hoses
(see Fig. 5)
16
Depending on the operating cycle, the peristaltic pump hoses should be replaced
at least every 5 months.
WARNING!
The hoses on the peristaltic pumps should never be lubricated.
The hoses can contain condensate residue. These materials can flow out
when the hose connections are opened. Take appropriate measures where
needed to collect residual condensates.
The condensate is often acidic. Appropriate precautions should be taken,
and relevant regulations on disposal should be complied with.
Step Action
1 Stop the sample gas supply and shut off the sample gas cooler
power supply.
Remove the old hose:
2 Remove the hoses from the hose connections 4.
3 Using the handles, press the moving belt 1 together and turn the
S-clip 2 in a clockwise direction as far as its limit stop.
4 Remove the moving belt 1 from the pump head and pull the old hose 3
by the hose connections 4 to release it from the moving belt's guides.
5 Press the pressure rollers 5 together and check the spring pressure; if
it is too weak, then the pressure springs and possibly rollers should be
replaced (see page 18).
Fit a new hose:
6 Insert a new hose 3 with hose connections in the guides on the
moving belt 1.
7 Insert moving belt 1 with the new hose in the dovetail guide 6 in the
pump head; using the handles, press the moving belt together while at
the same time turning the S-clip 2 counterclockwise until it engages.
8 Screw hoses to the hose connections 4.
Take care not to kink or crush the hoses.
Restart the sample gas cooler:
9 Switch on power supply to sample gas cooler.
10 The sample gas flow should only be restarted after the lead time
period.
SCC-C Sample Gas Cooler Operator's Manual
Continued on next page
42/23-55 EN Rev. 1