Labconco VACUUBRAND Diaphragm Pump 7393000 - Manual (Page 54)

page 54 of 74
The replacement of the diaphragm and the replacement of the valves can
be carried out separately.
+
To replace the valves, remove the head covers of one side of the pump
along with the assembled valve heads and fittings.
+
To maintain the diaphragms, the valve heads and the fittings need not
be disassembled. The head covers can be removed along with the as-
sembled valve heads and fittings.
+
Service only one side of the pump at a time to avoid the mixing of
parts.
Cleaning and inspecting the pump heads
Pump on pump support:
➨
Remove catchpots (9) at inlet and outlet (see
”Use and operation”, page 38).
➨
Remove the 4 screws affixing the head cov-
er cowling (W) with a Torx driver T20. Pay
attention to the washers under the screws
and remove.
➨
Pull off head cover cowling (W) carefully. Do
not tilt.
W