Removing The Impeller Eye Seal - York YDHF-39 Manual

FIG. 64 – LIFTING NOZZLE BASE PLATE
FIG. 65 – NOZZLE BASE PLATE WITH IMPELLER EYE SEAL IN PLACE

REMOVING THE IMPELLER EYE SEAL

1. Remove the cap screws that hold the eye seal re-
tainer to the nozzle base plate. (See Fig. 65)
2. Remove the eye seal retainer and the eye seal ring
from the nozzle base plate. (See Fig. 66)
The Pre-Rotation Vane Assembly can-
not be removed from the suction con-
nection side of the compressor on the
HA, HB and HD style compressors. It
must be removed from the inside of the
rotor scroll housing AFTER the
nozzle base plate is removed. If disas-
sembly of the PRV housing is antici-
pated on these compressors, proceed to
"Removing the Pre-Rotation Vane
Housing" on page 35. Otherwise, pro-
ceed with re-assembly of the compres-
sor as follows.
YORK INTERNATIONAL
LD05190
26302A
ROLL PIN
HOLE
FOR
ROLL PIN
HELICAL
SPRINGS
FIG. 66 – EYE SEAL COMPONENTS
FORM 160.49-M1
CAP SCREWS
EYE SEAL
RETAINER
"O" RING
NOZZLE
BASE PLATE
"O" RING
EYE
SEAL RING
EYE SEAL
RETAINER
26301A
33
2