Hale 2CBP - Manual (Page 44)

Sec V- 8 Maintenance and Repair
Booster Pumps
align on the pump head.
3. Install a new seal ring into the bore of the
pump head on the gearbox side.
4. Install the pump head on the gearbox, do not
damage the oil seal or pump shaft.
5. Apply Loctite™ 242 (or equal) and install the
four 7/16-14 UNC x 1 cap screws to secure
the pump head to the gearbox. Tighten
capscrews to 40 ft-lb (54 Nm).
AP Gearbox
Disassemble AP Gearbox
See figure 5-5 for parts identification.
1. Remove the pump and gearbox assembly
from apparatus as described above.
2. Place the pump and gearbox on a work
stand.
3. Remove the pump body, impeller, and pump
head as described previously.
4. If the pump is equipped with a water mani-
fold, remove the 5/16-18 UNC cap screws
and remove the water manifold and gasket
from the gearbox.
If the pump is not equipped with a water
manifold, remove the capscrews,
lockwashers, gearbox cover, and gasket.
5. Remove the bearing cover from upper
portion of gearbox opposite the pump.
6. Use a drift punch to begin pushing the pump
shaft assembly from the gearbox housing
towards the pump side. Be careful not to
lose the pump gear key in the gearbox.
7. Remove the 306W bearing, pump gear,
pump gear key, and 208M bearing from the
pump shaft or gearbox housing.
8. Remove the oil
seal from the
drive shaft then
remove the
retaining ring.
9. Remove the 1/
2 - 13 set
screw from
gearbox hous-
ing.
10. With the set
screw re-
moved, insert a
drift punch into the 1/2-13 hole and begin
pushing the drive shaft from gearbox while
protecting the drive gear from falling.
11. Once the shaft is clear of gearbox, remove
drive gear from the housing.
12. Remove the two 207K bearings from the
drive shaft and gearbox housing.
13. Remove the key from the drive shaft.
14. Inspect and clean all components according
to the Cleaning and Inspection Guidelines.
Reassemble and Reinstall AP Gearbox
1. Place the gearbox housing on a steady flat
surface with drive shaft opening facing up.
2. Insert one of the two 207K bearings into the
bore of the gearbox housing.
3. Slide the drive gear into the gearbox hous-
ing. Align the bore of the drive gear with the
bore of the gearbox housing.
4. Insert the key in drive shaft and insert drive
shaft into gearbox housing. Align the
driveshaft in the 207K bearing.
5. Install the other 207K bearing over the drive
Figure 5-6