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  3. S90 P
S90 P

Danfoss S90 P Installation guide

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Required tools
1” hex wrench
Disassembly Procedure
• Thoroughly clean external surfaces prior to removal
of relief valve components.
• To remove the orificed relief valve cartridge, loosen
the large nut with a 1” hex wrench. Remove the
cartridge valve.
Assembly Procedure
• Install new cartridge assembly and torque to 38 ft•lbf
(52 Nm).
Orificed Charge Relief Valve Cartridge
© Danfoss, 2013 BLN-10190 • Rev AA • September 2013 1
Service Kit Instructions
Series 90
Charge relief valve cartridge replacement
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