Replacing Diaphragms - Ulvac DTC-41C User Manual

1)Replacing Diaphragms

(simultaneous replacement of both diaphragms is recommended)
Caution: To prevent injury, always wear gloves when fitting or removing diaphragms.
Use tools No.1, 2, 3, 4, 5, 6 and 7.
1-1). DTC-41(C,D,E,F)
(1) Remove the inlet and outlet pipes, and lay the pump horizontally on a soft
cloth (Photo.1).
(2) Remove the six truss head screws (M4 x 10) in the pump base, and
remove the front panel A and front panel B(white) (Photo.2)
(3) Stand the pump upright and remove the four truss head
screws (M4 x 10), and remove the top panel (Photo.3).
(4) Remove the eight hexagon socket head cap screws (M6 x 25) and
remove the pump head as shown in Photo.4.
Caution: Gripping, pushing, or bending the connecting tube will
damage it and reduce the performance of the pump.
Caution: Lay the removed pump head on a soft cloth.
(5) Remove the connecting tube from the valve retainer and separate
the left and right pump heads (Photo.5).
※It is recommended that valves and O rings be replaced
simultaneously with diaphragms.
Refer to the 2) Replacing Inlet and Outlet Valves, when replacing Valves.
Refer to the 3) Replacing O rings, when replacing O rings.
Front panel A
Front panel B
Truss head screws
(M4 x 10)
Hexagon socket
head cap screws
(M6 x 25)
Valve retainer
9
Photo.1
Inlet/Outlet pipe
Truss head screws Photo.2
(M4 x 10)
Photo.3
Top panel
Pump head
Photo.4
Slide in direction of arrows
Photo.5
Tube