Ransburg Turbodisk 2 Assembly 78715 - Manual (Page 29)

Turbodisk 2 - Maintenance
25
Disassembly
-REFER TO FIGURE 28
1. After turbine cartridge has been removed
from housing, 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 shaft and
remove slinger with a spanner wrench.
2. With the 1/4-inch wrench still inserted in the
hex socket at the rear end of shaft, remove hex
nut using a 15/16-inch box end wrench.
3. Secure a wheel puller tool to turbine rotator.
Rotate the center screw of the tool until the
rotor is free of the shaft. Remove key.
4. Using a 5/64-inch wrench, remove the six flat
head socket screws which secure bearing
retainer to bearing housing. Remove the
retainer.
5. Support bearing housing, front face down,
on two parallel supports on the arbor press
table. Press shaft from the housing. Remove
spacer from the shaft.
6. On the arbor press table, support the
assembled shaft/bearing, front end down, on
the two parallel supports. With the bearing
faces resting on the supports, press the shaft
free of the bearing.
7. Remove rear bearing, spring, spring retainer
(wave spring washer, and shims in some older
models instead of spring and spring retainer),
and bearing spacer from bearing housing. It
may be necessary to press the bearing from
the housing using a wood or plastic rod or
tool handle inserted through the bore from
the front.
> The space between the supports must
be greater than the outside diameter of front
bearing.
C A U T I O N
!
8. With a 5/64-inch wrench, remove the six
flat head socket screws from nozzle plate.
Remove the nozzle plate.
9. Remove all o-rings.
Inspection and Preparation
• Never use any silicone compound in this system!
• Never use any lubrication on the bearings!
• Never use any solvent on the bearings!
• Never exert force on one race of a bearing assembly
that may be transmitted to the other race through
the bearings! Force and resistance must always be
on the same race in order to prevent damage.
• Do not enlarge the nozzle passages during cleaning,
as it will effect performance.
• Always observe the specified torque in tightening
fasteners.
• Clean all parts thoroughly with an appropriate,
clean solvent. Inspect them for wear or damage
and replace as required.
• Check all flow passages for obstruction, particularly
the nozzle plate. Clear as required.
• Discard all bearings and o-rings and replace with
new. Lightly lubricate o-rings with petroleum jelly
before assembly. Fit parts with o-rings very carefully.
They must not be allowed to distort, unseat, or
break.
> Never use a tool that is harder than the part
it is used on.
C A U T I O N
!
> Failure to observe the following cautions will
result in diminished performance and premature
motor failure.
C A U T I O N
!
LN-9240-02.1