Hale 2CBP - Manual (Page 42)

Sec V- 6 Maintenance and Repair
Booster Pumps
DO NOT STRIKE THE IMPELLER.
IRREPARABLE DAMAGE MAY RESULT.
5. Inspect and clean all components according
to the Cleaning and Inspection Guidelines
above.
Remove AP Mechanical Seal
1. Remove the impeller key from the pump
shaft.
2. Remove the mechanical seal spring from the
bore of the pump head.
3. Remove the mechanical seal diaphragm
assembly from the bore of the pump head.
4. Remove the stationary seat of the
mechanical seal from the pump head.
5. Inspect and clean all components according
to the Cleaning and Inspection Guidelines
above.
Reinstall AP Mechanical Seal
1. Install a new oil seal if indicated by
inspection on the gearbox side of the pump
head.
2. Clean the bore of pump head using alcohol
swabs. Install the stationary seat into the
pump head.
NOTE: Oil and grease will damage the
mechanical seal face. Do not to touch the
face of the mechanical seal.
3. Apply a generous coating of PAC-EASE
Rubber Lubricant Emulsion (or equal) to the
o-ring on 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. Carefully push the stationary seat into the
pump head bore using a soft clean pusher
tube. Verify the stationary seat is firmly
seated 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 face
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 PAC-EASE
lubricant. Slide the spring and cupwasher
(supplied with the seal) onto the shaft. The
spring must seat on the seal retainer.
Reinstall the AP Impeller
1. Install the impeller key in the keyway on the
pump shaft. Carefully slide the impeller over
the pump shaft, aligning the keyway with the
impeller key.
2. Hold the impeller with a strap wrench.
Tighten the impeller nut. Torque to 110 ft
LBS (149.14 Nm).
3. Continue to tighten the impeller nut until the
cotter pin can be installed to lock the
impeller nut in place.
REMOVE AP PUMP HEAD
1. Remove the pump body, impeller and
mechanical seal.