12
(6) Fit the valve retainer to the pump head.
Caution: Check that the O rings are fitted correctly to the inlet and outlet valves.
Caution: Repeatedly tighten equally in diagonally opposite pairs to a torque of 0.5N
･
m.
(7)
Assemble the pump in accordance with
‘1)Replacing diaphragms’ step(1)~(15).
2-2) DTC-41K(C,D,E,F)
Replace inlet and outlet valves in accordance with '2-1). DTC-41(C,D,E,F) ' steps (2)~(7).
3) Replacing O rings (simultaneous replacement of O rings and diaphragms is
recommended)
Use tools No.1, 2, 3, 4, 5, 6 and 7.
The following procedure is common to the DTC-41(C,D,E,F) and DTC-41K(C,D,E,F).
(1)Remove the pump head from the casing, and then remove the valve retainer in accordance with
steps (1) and (2) in '2) Replacing inlet and outlet valves'.
(2)Remove the O rings (Photo. 14, 15, 16).
(3) Clean the inlet and outlet pipes, pump heads and valve retainers with solvent.
(4) Apply a small amount of vacuum grease to the new O rings and fit each in place.
Caution: AS568-110 requires two O rings (total of four O rings).
(5)Fit all components in accordance with steps (6) and (7) in '2) Replacing inlet and outlet valves'.
4) Replacing Bearings
Contact the manufacturer's service division for replacement of bearings.
Inlet and outlet valves
Hole
First stage
Second stage
Two valves
One valve
One valve
One valve
Photo.13
.
O ring
(P-10A)
O ring
(S-28)
Used with 41K
Used with 41
O ring
(AS568-110) x 2
Photo.14
Photo.15
Photo.16
O ring
