14
It is suggested that long feeler gauges (12”) be used to check the
interlobe timing. Preferably (2) .006, (1) .005, (1) .004, and (1) .003
These gauges will provide all the combinations from .003 to .021,
and also .024, which is the total.
Preparation Of End
Plates For Assembly
1) Remove all nicks, scratches, etc. from all sealing surfaces. Clean
all parts thoroughly.
2)
Mechanical Seal Boosters
– Press in new labyrinth seals (51)
into bores of both end plates (4) making sure the scalloped areas
of seal case are aligned with openings in vent area of seal bore.
Coat O.D. of mechanical seal with sealer and press into seal bore,
coming to rest on top of labyrinth seal. Make sure seals are fully
seated without deforming case. Keep sealer from carbon surface.
Carefully wipe carbon with soft tissue and cleaning agent
(acetone) before continuing assembly.
Slinger Seal Boosters
– Press in new oil slinger stators (79) if
required.
3) Stand rotors (1) on arbor press table with gear end shafts up. See
Figure 7. Two keyways should point in the same direction, to the
right.
Figure 7
4) Carefully install gear end plate over rotor shafts.
NOTE:
The drive rotor should always be on the left side. Make
sure the end plate feet are facing in the proper direction so the
assembled unit will have the same drive shaft location as before.
5)
Mechanical Seal Boosters
– Some earlier models used an o-ring
(314) under the mating portion of the mechanical seal. This has
been discontinued and o-rings should not be used with newly
purchased seals. Check lapped surface of seal mating ring to be
sure it is perfectly clean. Use soft tissue and cleaning agent if
necessary. Place a few drops of lubricating oil on its surface and
install on shaft with lapped surface coming to rest on top of
carbon. Gently press with fingers to insure compression is taking
place and ring is not hung up for any reason.
Slinger Seal Boosters
– Slide slinger (238) over shaft. Also
install spacer (129) if two piece.
Gear End Assembly
