Hale MBP Booster - Manual (Page 86)

85 Silencer Series Booster Pump, p/n: 029-0020-83-0
Preventive Maintenance
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2. Place the gearbox housing on a steady flat surface with drive shaft
opening facing up.
3. Insert one of the two roller bearings into the bore of the gearbox
housing.
4. Slide the input gear into the gearbox housing, aligning the bore of the
drive gear with the bore of the housing.
5. Insert the key in input shaft and insert shaft into gearbox housing. Align
the input shaft in the bearing.
6. Install the other roller bearing over the drive shaft into the gearbox hous-
ing bore.
7. Install the retaining ring to hold the bearing and drive shaft in place.
8. Install a new oil seal.
9. Lift the gearbox onto its base. Apply Loctite 242 to the knock-out plug
and install the plug until it is flush with the gearbox housing.
10. Set the gearbox flat with the drive shaft fac-
ing down. Insert the roller bearing in the
bore on the pump end of the gearbox
housing.
11. Insert the pump gear key to the pump shaft
and install the pump gear. Align the pump
gear to the drive gear and install into the
gearbox.
12. Install the pump shaft spacer, then the two
angular contact bearings.
The matched angular contact bearing pair
must be assembled with the large faces of
the inner race apart from each other and the
wider (thicker) faces of the outer races
touching. (See Figure 6-14: “Angular Con-
tact Bearing Orientation.”)
CAUTION !
IMPROPER ORIENTATION OF THE ANGULAR CONTACT BEARINGS DURING
INSTALLATION CAUSES EXCESSIVE HEAT BUILDUP AND PREMATURE
WEAR.
Figure 6-14: Angular Con-
tact Bearing Orientation