Assemble Honeycomb Air Seal; Assembly Of Thrust Bearing Outer Race - GE XV-5A Installation, Operation And Maintenance Instructions

b. Place the seal support segments over the scroll seal segments and
insert a bolt and tighten.
c. The seal support segments which are assembled over the insulation
blanket side are installed in the same fashion. Torque center bolts to
35 lb. in., end bolts to 25 lb. in.
4.26 Assemble Honeycomb Air Seal
a. The honeycomb air seal is attached to the front frame air seal
support with #10-32 bolts. The end of each spacer is attached per
Figure 4.10. Torque the center bolt in each segment to 35 lb. in.
Torque the end bolt in each segment to 25 lb. in.
b. After initial assembly, the honeycomb air seal must be ground to
a dimension which is obtained as follows: Determine the maximum radius of
the top air seal (dimension A from Figure 4.4, Rotcr InspecLion) and record
this dimension on Figure 4.11. To this dimension, add 0.075" - 0.095" (pro-
vides air seal clearance) to obtain the desired iadius of the honeycomb air
seal. Grind the seal to this radius using the grinding fixture (Ref. Par. 3.7).
After grind, inspect and record (on Figure 4.11) the radius of the honeycomb
seal. Mark the location of minimu-i radius with Dykem.
c. Periodic Inspection - Do not remove the seals or scroll from the
front frame for a normal periodic inspection. All areas are visible for
inspection. If the seals must be removed, their position must be marked
prior to disassembly. Upon reassembly, the radial runout of the seal must
be checked to assure proper rotor clearance before the rotor is assembled.
4.27 Assembly of Thrust Bearing Outer Race
a. Place the forward (or top) grease shield in the groove in the
thrust bearing housing located in the forward frame.
b. Freeze the outer race and assemble it into the housing. Insert
the balls and cage into the outer race.
c. Assemble the thrust bearing grease seal into the retainer.
1-4.18
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