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WCB_D4_D4SL_sch5_US.indd
D4 / D4 SL Schedule 5 Series
Double Seat Mix Proof Valves
Instruction Manual: US - rev. 0
Waukesha Cherry-Burrell
®
brand D4 / D4 SL Schedule 5 Valves
13. Assembly Instructions and Tools for Seals
The item numbers refer to the spare parts drawings
Inch and DIN designs: D4
RN 500.047.02 (see page 27)
Inch and DIN designs: D4 SL RN 501.047.02 (see page 30)
13.1. Lower shaft seal
For the simple assembly of the lower shaft seal (11), the assembly/
disassembly tool (H171889) and the assembly stick (H338450) can
be used. These tools are especially recommended for valves of small
series (1.5”-3”; DN40-65) as access to the lower shaft seal from the top
is impossible as a result of the narrow seat.
Caution!
To avoid injuries the disassembly tip must be
covered by the assembly mandril if not used.
1.
Slightly grease the shaft seal (11).
2.
Use the assembly tool to insert the shaft seal from the top, the wide
side to the front, through the intermediate ring of the housing into the
lower flange housing ball (fig 1.).
3.
Position the shaft seal (11) using the groove of the assembly mandril.
4.
Press the shaft seal (11) at one spot in the groove of the housing flange
and continue to press on the shaft seal.
5.
Position the groove of the assembly stick on the seal lip. Slightly turn
the stick and position the shaft seal (11) in the groove. Slide further
around the seal lip and insert the shaft seal in a similar manner until the
shaft seal is completely in the groove.
Assembly tool
(H171889)
assembly mandril
disassembly tip
1.
2.
Assembly stick
(H338450)
!