How To Replace The Oil Seal Ring - Agilent Technologies PHV K Series Operating And Maintenance Instructions Manual

6.6 How to replace the oil seal ring

Model 5 ÷ 30
Disassembly
a) Check that the power supply is provided with a switch and that the pump is perfectly not operating and at at-
mospheric pressure.
b) Drain the oil in a proper container by opening the drainage valve a.
c) Remove the motor form the pump unit (see 6.5).
d) Loosen oil tank screws b and remove the tank from the pump housing.
e) Loosen the three screws c and remove the pump housing from the pump module with caution.
f) Loosen the screw d.
g) Loosen the screw e and remove the cover.
h) Extract the key from its seat on the rotor.
i) Loosen the two screws f of the pump housing rear cover and extract the first cylinder.
j) Extract the seeger ring g using the suitable tools.
k) Extract the oil seal with caution.
e- screw
Drainage
valve cover
f - screw
a – Oil discharge
ENG (translation)
PHV K Series
Gasket
Oil seal ring
O-ring
Key
Rotor
Doc. n. LI 3488.00
Coupling disk
Coupling half
g – Ring
Oil seal ring
1° cylinder
Oil seal bushing
Pump module
Oil tank
b – screw
d –screw
c - screw
Pump
housing
15