12
6.2. Cleaning And Replacing Diaphragm And
Valves
6.2.1. MVP 035-2
➡
Allow the pump to cool down before beginning
dismantling.
➡
Detach the pump from the pumping system and ensure the
motor cannot get switched on.
➡
Screw off hose connection between the pump stages.
➡
Remove the cheesehead screws 26 (four per pump stage).
➡
Remove housing cover 1 with head cover K1/K2 taking
care to prevent head cover 2 falling out of housing cover 1.
➡
Check diaphragm pair 10 for damage and replace as
necessary.
The two membrane heads have differing head
covers K1/K2. When servicing take care not to
interchange these two parts. Head cover K1
has, on the intake side, an additional groove in
the valve seating.
➡
Remove head cover K1/K2 from housing cover 1 to check
valve seals 11.
➡
Taking care with the position of valve seals 11, remove and
check for damage, and replacing if necessary.
➡
Clean all parts.
➡
Re-assemble pump in reverse order.
MVP035ohnePos
MVP 035-2
A1 Vacuum inlet with hose connection
1
Housing cover
K1 Head cover inlet side
K2 Head cover outlet side
2.1 Silencer
2.3 Sealing ring
17
6
4
D
9
10
16
11
1
26
A1
K1
3
K2
2.1
40
2.3
2.3
1
2.3
3
Diaphragm spring washer
4
Con-rod
6
Housing panel
9
Diaphragm support washer
10 Double diaphragm
11 Inlet and outlet valve seal
16 Countersunk screw
17 Countersunk screw
D
Tolerance ring
26 Cheesehead screw
40 Gas ballast valve
V
