59
20901544_E12C+16C_NT Vsel_V1.2_260922
Cleaning and maintenance
Replace pressure relief valve + O-ring
1
2
1.
Place the vacuum pump on
a clean, stable surface as
shown.
2.
Only open the hose clips above
the pressure distributor; flat‑
head screwdriver size 1.
3
4
3.
Remove the molded hoses
one by one from the hose
nozzles.
4.
Unscrew the screw fittings.
Phillips screwdriver size 2.
5
6
5.
Remove the suction distribu‑
tor with the screws and put it
aside.
6.
Carefully remove the used
pressure relief valve, e. g., with
a sturdy plastic rod or a narrow
flat‑head screwdriver.
