Maintenance
58
Operation Manual LVS 105 T
– 10 ef
+
8.2.3
Installing the pump unit
The pump unit is assembled in the reverse order of disassembly; see the section on replac-
ing components in the pump unit
8.2.2 Replacing the components in the pump
PUMP UNIT INSTALLATION
►
Align the pump unit (diaphragm) horizontally.
Remarks
See figures 8.3 and 8.4.
Press the diaphragms (A) toward the inside so they are concave.
Insert the O-rings (C) into the circular grooves of the pump head (B).
Center the valves (D) in the O-rings (C). The smooth sides of the valves must face the
sealing surface in the connection/pump head.
Note the valve arrangement; see figure 8.7
Tighten the cross recessed screws with a torque of 3 Nm to 4 Nm.
Seal the angle fittings again if necessary.
Connect the hoses with a compression fitting.
Fig. 8.7
– Valve arrangement: 1st stage (view from left), 2nd/3rd stage (view from right)
Pos.
Description
1
Valve arrangement 2nd/3rd stage
2 x valves, order no. 400656
2 x valves with drilled hole 400656-4 (red marking)
2
Valve arrangement 1st stage
4 x valves, order no. 4006564
3
Fan