A
B
C
A "VBX" O-ring action
B Static
C Dynamic
1 Rotor
2 Stator
3 "VBX" ring
4 Rotor drive ring
5 Stator gasket
6 Expulsion port
7 D groove
8 Lube return
9 Location shoulder
Figure 119: INPRO labyrinth oil seal
6.6.8 Assemble the INPRO labyrinth oil seal
1.
Wrap electrical tape around the coupling end of the shaft to cover the keyway.
NOTICE:
The edges of the keyway can be sharp. Cover the keyway with tape. Failure to do so may re-
sult in damaging the o-ring and/or labyrinth seal.
2.
Lightly lube the shaft and the drive ring (4) with lubricant.
Lubricant helps in the installation process. Be sure that the lubricant is compatible with the O-ring
material and the pump-system standards.
3.
Use an arbor press to install the outboard INPRO VBXX-D into the bearing cover with the expulsion
port (6) at the 6 o'clock position.
Press the outboard INPRO VBXX-D down to where the stator location ramp (9) starts to avoid an-
gular misalignment. There is a nominal 0.051 mm | 0.002 in. interference fit.
4.
Discard any residual material from the stator gasket (5).
5.
Complete the applicable step in this table depending on the model of your pump.
Pump model
Action
STi
Press the inboard seal along the shaft into the bearing frame.
All other models After you install the frame adapter on the bearing frame, press the inboard seal
over the shaft and into the adapter.
6.6 Reassembly
Model CV 3196 i-FRAME Installation, Operation, and Maintenance Manual
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