29
Shaft and bearing disassembly in the field is not recommended.
These operations should be performed only in a properly equipped
shop by qualified personnel.
CAUTION!
Remove the bearing housing drain plug (23) and drain the lubricant. Clean and reinstall
the drain plug.
Disengage the hardware (13 and 14) and slide the bearing cap (15) and oil seal (9) off
the shaft. Remove the bearing cap gasket (21), and press the oil seal from the bearing
cap.
Place a block of wood against the impeller end of the shaft and tap the shaft and
assembled bearings (7 and 22) from the bearing housing.
After removing the shaft and bearings, clean and inspect the bearings
in place
as
follows.
To prevent damage during removal from the shaft, it is
recommended that bearings be cleaned and inspected in place. It
is strongly recommended that the bearings be replaced any time
the shaft and bearings are removed.
CAUTION!
Clean the bearing housing, shaft and all component parts (except the bearings) with a
soft cloth soaked in cleaning solvent. Inspect the parts for wear or damage and replace
as necessary.
Most cleaning solvents are toxic and flammable. Use them
only in a well-ventilated area free form excessive heat,
sparks, and flame. Read and follow all precautions printed on
solvent containers.
WARNING!
Clean the bearings thoroughly in fresh cleaning solvent. Dry the bearings with filtered
compressed air and coat with light oil.
Bearings must be kept free of all dirt and foreign material. Failure to
do so will greatly shorten bearing life. DO NOT spin dry bearings.
This may scratch the balls or races and cause premature bearing
failure.
CAUTION!
Rotate the bearings by hand to check for roughness or binding and inspect the
bearings balls. If rotation is rough or the bearing balls are discoloured, replace the
bearings.
The bearing tolerances provide a tight press fit onto the shaft and a snug slip fit into the
bearing housing. Replace the bearings, shaft, or bearing housing if the proper bearing
fit is not achieved.
If bearing replacement is required, remove the outboard bearing retaining ring (18),
and use a bearing puller to remove the bearings from the shaft.
Press the inboard oil seal (7) from the bearing housing.
Shaft and Bearing Reassembly and installation
(Figure 11, Page 23)
Clean the bearing housing, shaft and all component parts (except the bearings) with a
soft cloth soaked in cleaning solvent. Inspect the parts for wear or damage as
necessary
.