Ransburg Turbodisk 2 Assembly 78715 - Manual (Page 30)

Turbodisk 2 - Maintenance
26
2. Using a press tool device on the arbor press
table, place front bearing over the rear end
of shaft. Insert the shaft into the press tool
rear end down and press the shaft through
the bearing until the bearing seats against
the shoulder on the shaft.
3. Place bearing housing on the arbor press
table, front face up, resting on two parallel
supports.
4. Insert the bearing/shaft into the bore of the
bearing housing. With o-ring in place against
it, place bearing retainer over the shaft so
that it rests on the bearing. Place the press
tool, large end down, over the shaft so that it
rests against the bearing retainer. Press until
the bearing seats in the housing.
5. Remove the assembly from the press and
secure the retainer with the six screws.
6. From the rear of the assembly, place bearing
spacer over the shaft and into the bore so
that it seats against the front bearing.
7. From the rear of the assembly, place spring
and spring retainer over the shaft and into the
bore over the bearing spacer. In some older
models, shims and a wave spring washer are
used in place of the spring and retainer. In
those models, place shims and wave spring
washer over the shaft and into the bore.
> Torque the screws to 10 lb • in. Do NOT
lubricate o-ring.
NOTE
> Torque the screws to 10 lb • in.
NOTE
> The same number of shims that were removed
from the assembly MUST be placed into it or the
bearing preload will NOT be correct! Each unit
is individually preloaded. The number of shims
used for this purpose may vary from unit to unit.
It is therefore necessary that the same number
of shims be installed in a repaired unit as were
removed. If more than one unit is serviced at one
time, be SURE that the shims removed from each
unit are returned to that same unit!
C A U T I O N
!
> The outer face of the bearing should be a
slip fit into the bore of the housing. Be careful
that the bearing does not hang up on the outer
edge of the bore during the pressing.
C A U T I O N
!
Assembly
1. With o-ring in its groove on the rear face of
bearing housing, secure nozzle plate in place
with the six screws.
8. With the housing assembly, front face down,
resting on two parallel supports on the arbor
table, place the rear bearing over shaft. Be
sure that o-ring is in place in its groove in
the housing bore. Place the small end of
the press tool over the end of the shaft so
that it rests against the inner face of the
bearing. CAREFULLY press the bearing onto
the shaft.
9. With the assembly still on the press table,
place the turbine rotor, flanged side up, over
the shaft. Insert key into the key slot in the
shaft, align it with the key slot in the rotor, and
press the rotor down until the key is engaged.
With the small end of the press tool against
the rotor flange, press it onto the shaft until
it seats.
10. Place hex nut and the 15/16-inch box end
wrench on the rear end of the shaft. Secure
the rotating assembly by inserting a 1/4-inch
wrench, which may be secured in a vise for
this procedure, in the hex socket at the rear
end of the shaft. Secure the nut using the
box end wrench.
LN-9240-02.1