Replacing The Valves - vacuubrand ME 4C NT VARIO Instructions For Use Manual

Replacing the valves

Q
O
O
R
➨ Check valves (N) and O-rings (M) for damage and soiling.
➨ Replace valves or O-rings if necessary.
➨ Use petroleum ether or other industrial solvent to remove deposits. Do
not inhale vapors.
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➨ Open the hinged cover of the connection
fastener (Q) with a slotted screwdriver.
Loosen connection fastener slightly.
➨ Turn the fillister head screw (L) with a Torx
driver T20 at most one turn.
+ Do not detach the fillister head screw from
the square nut (K).
Loosen the clamping brackets (S) on the valve
heads (O).
S
➨ Unscrew at each clamping bracket the two
countersunk screws with a Torx driver T20.
Remove the clamping brackets.
➨ Remove valve heads (O) along with the disc
Q
springs (R), connection tube if applicable,
hose nozzles (P) and connection fasteners
(Q) or move the valve heads carefully aside.
Note position and orientation of the valve
N
heads.
+ Note position and alignment of valves (N).