• Clean valve externally with clean solvent to remove any debris
• Remove P03 nut assembly. (Caution: Do not loosen P04 nut as that will
change the pressure setting.)
• Clean the valve internally. (Caution: Do not misplace P07 spring, P08 spring
seat and P17 poppet during the cleaning process.)
• Replace P02 O-ring and apply a light film of petroleum jelly.
• Reinstall P03 nut assembly and torque to 41Nm (30 lbf•ft.)
• Install P06 and P13 O-ring and apply a light film of petroleum jelly.
• Install multifunction valve into the pump and torque to 89 Nm (66 lbf•ft.) for
30 to 100 cc pumps and 210 Nm (155 lbf•ft.) for 130 to 250 cc pumps.
P06
P04
P07
P17
P08
P02
P03
P13
© Danfoss, 2013 BLN-10163 • Rev AA • September 2013 1
Service Kit Instructions
Series 90
Multi-function valve seal kit installation
