Hale 2CBP - Manual (Page 48)

Sec V- 12 Maintenance and Repair
Booster Pumps
Reinstall CBP Impeller
1. Install the impeller key in the keyway on the
pump shaft. Carefully slide the impeller over
pump shaft aligning the keyway with the
impeller key.
2. Install the lock washer on the pump shaft.
3. Coat the pump shaft threads with Loctite™
640 and install the impeller nut.
4. Hold the impeller with a strap wrench, and
tighten impeller nut. Torque to 125 ft_lbs
169.5 (Nm).
5. Stake the lock washer to lock the impeller
nut in place.
6. Install the pump body as described above.
REMOVE CBP MECHANICAL SEAL
1. Remove the impeller as described above.
2. Remove the mechanical seal spring.
3. Remove the mechanical seal diaphragm
assembly.
4. Remove the stationary seat from the pump
head.
5. Inspect the oil seal in the pump head and
remove if damaged.
6. Inspect and clean all components according
to the Cleaning and Inspection Guidelines.
Reinstall CBP Mechanical Seal
1. Install a new oil seal if indicated by
inspection (see Cleaning and Inspection
Guidelines).
2. Clean the bore of the pump head using
alcohol swabs and install the stationary seat.
NOTE: Oil and grease will damage the
mechanical seal face. Be careful not to
touch the seal face of the mechanical seal.
3. Apply a generous coating of PAC-EASE
Rubber Lubricant Emulsion (or equal) to the
outside of the stationary seat.
4. Carefully slide the stationary seat over the
pump shaft and fit the stationary seat of the
mechanical seal into the pump head.
5. Push the stationary seat into the pump head
bore using the pusher tube. Verify the
stationary seat is seated firmly in the pump
head.
6. Clean the pump shaft with alcohol swabs.
7. Apply a generous coating of PAC-EASE
Rubber Lubricant Emulsion (or equal) to the
seal diaphragm. Without touching the
surface of the seal ring, push the seal ring,
diaphragm, and retainer onto the shaft with
the pusher tube.
8. Keep the shaft well lubricated and verify the
seal ring seats against the stationary seat. If
binding occurs apply additional lubricant.
Slide the spring and cupwasher (supplied
with the seal) onto the shaft.
CBP PUMP HEAD
REMOVE CBP PUMP HEAD
1. Remove the pump body and impeller as
described above.
2. Remove the four 5/16-18 X 3/4" and two 5/
16 - 18 X 1 1/4" cap screws that secure the
pump head to the gearbox.
3. Remove the pump head from the gearbox.