Clean Or Replace Ptfe Hoses; Vacuum Pump Maintenance; Maintenance Items - vacuubrand PC301 VARIO select Series Instructions For Use Manual

-> Example
Pump head mainte-
nance
Description
20901118_EN-US_PC301x VARIO select Serie_V1.3_100720

7.2.3 Clean or replace PTFE hoses

Maintenance provides the opportunity to check the components
of the pumping unit, including the hoses.
ð Clean the inside of very dirty molded hoses, e.g., using a
pipe cleaner or similar.
ð Replace brittle and defective molded hoses.

7.3 Vacuum pump maintenance

7.3.1 Maintenance items

Positions to be maintained
Maintenance items and sequence
1 EK pressure relief valve in silicone #20638821
2 Suction/pressure distributor (behind separator flask)
3 Right pump head pair
4 Bottom pump head pair
5 Left pump head pair
6 Top pump head pair
Straightforward maintenance due to split work steps. Ob-
serve the recommended sequence in the maintenance items
table.
ð On removal, check the pressure relief valve on the
EK.
ð Option: Replace the O-ring and pressure relief valve
in the suction/pressure distributor.
Cleaning and maintenance
53