EN – 15
EN
Maintenance
Reassembling the pump
• All surfaces in contact are coated with oil (rotors, vanes...).
• Check that the lubrication holes are not blocked.
• Observe the
nominal clamping torques for the reassembly of the functional
block (see chapter “Nomenclature”)
.
• Rest the frame (
42
) on a flat surface in order to raise the pump.
Component
preparation
Reassembling the
pumping module
with flanged stator
(see page N – 10)
1
Place the BP stator (
26
) on the
frame (
42
).
If there is no centering pin, align the
top of the stator with the exhaust
notch in the housing.
2
For not damage the shaft seal, use
protective sleeve on the rotor axis (or
wrap end of shaft with adhesive tape)
and oil it.
3
Slide the BP rotor (
23
) equipped with
its vanes and springs (rounded edges
facing outwards) in the BP stator (
26
).
Remove the protective sleeve.
4
Place the HP stator (
34
) on the BP
stator (
26
).
5
Slide the HP rotor (
31
) equipped with
its vanes and springs (rounded edges
facing outwards) in the HP stator (
34
).
6
Place the rear flange (
7
) on the HP
stator (
34
).
Sleeve
26
23
31
34
7
26
2 stages models: steps 1 to à 6
1 stage models:
steps 1, 2, 3 and 6
