Install the impeller cover bearing in the cover
Position the turbine assembly in the impeller
with the bearing locating ring up.
If the turbine or turbine hub was replaced
or disassembled, the following steps
must be used for reassembly.
Clean the hub mounting surface and tapped
holes with solvent. Dry thoroughly being certain the
tapped holes are dry and clean.
Install the backing ring and special screws to
approximately .06 inch (1 .5 mm) of seated position.
With a calibrated torque wrench, tighten screws 37
to 41 lbs. ft. torque (5.0 to 5.5 kgm).
Install the turbine hub to the impeller cover
bearing retainer ring.
Assembly of the turbine hub must be
completed within a fifteen minute period
from start of screw installation. The
screws are prepared with a coating which
begins to harden after installation in the
hub holes. If not tightened to proper
torque within the fifteen minute period,
insufficient screw clamping tension will
result. The special screw is to be used for
one installation only. If the screw is re-
moved for any reason it must be re-
placed. The compound left in the hub
holes must be removed with the proper
tap and cleaned with solvent. Dry hole
thoroughly and use a new screw for
Remove the impeller hub bearing from the sta-
tor support as shown. Remove the support oil sealing
ring and sealing ring expander spring.