Eco GA Series, Installation, Operation & Maintenance Manual, Page: 15 / 59

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6. Place jacket halves with heat transfer cement on pump and press firmly in place. Bolt
jacket halves together with jacket bolts removed in Step 3.
7. Tighten bolts alternately to assure snug, even seating of the jacket halves on the
pump.
AS BOLTS ARE TIGHTENED ALTERNATELY EXCESS HEAT TRANSFER CEMENT
WILL EXTRUDE FROM EDGES OF THE JACKETS AND AT FLANGE INTERFACES.
REMOVE THIS EXCESS CEMENT WITH TROWEL.
8. Use damp rags or paper towels to clean any excess heat transfer cement from the
installation. Make sure there is no heat transfer cement on the threads of the valve
stems.
9. Allow heat transfer cemen
t to dry for 24 hours (above 32˚F) before applying heating
medium to the bolt-on jacket
5.5 REMOVAL
The following tools are required:
•
Rubber or plastic mallet to dislodge jacket halves form heat transfer cement and
pump.
•
Suitable wrenches (open-end, socket or adjustable) to remove bolts holding jacket
halves on pump.
•
A hand chisel to remove any chunks of heat transfer cement that adhered to the
inner surfaces of the bolt-on jacket.
1. Tum off heating medium supply and allow jacket/pump to cool to ambient
temperature. Remove heating medium jump overs from jacket halves with suitable
wrenches.
IF JACKET HALVES ARE BEING REMOVED TO REPAIR THE PUMP OR REPLACE
IT WITH AN IDENTICAL COMPONENT AND FLEXIBLE METAL HOSES ARE USED
AS JUMPOVERS, IT IS NORMALLY UNNECESSARY TO REMOVE THE
JUMPOVERS. WORK ON THE PUMP CAN PROCEED WITH THE JACKET HALVES
DISLODGED FROM THE PUMP WHILE THE HEATING MEDIUM JUMPOVERS
REMAIN CONNECTED TO THE DRAIN AND SUPPLY COUPLINGS.
2. Remove bolts holding jacket halves on the pump. Tap the jacket halves lightly with a
rubber or plastic mallet to dislodge them from the pump.
JACKET HALVES MAY BE PRIED APART WITH A SCREWDRIVER OR HAND
CHISEL, BUT THIS SHOULD BE DONE VERY CAREFULLY WITH ONLY NOMINAL
FORCE.
3. In most instances, the heat transfer cement adheres to the pump and not the inner
surfaces of the jacket. The cement can be easily chipped away from the pump
surface with a hand chisel. Any chunks of the heat transfer cement adjoining to the
inner surface of the jacket halves should be removed also. Residual traces of heat
transfer cement on the inner surfaces of the jacket halves need not be removed.
These traces neither affect a good fit nor inhibit good thermal performance.
4. When inside surfaces of jacket halves are clean, the jacket is ready for re-use. If the
gear pump is to be repaired and reused, be sure to remove heat transfer cement
adhering to its surface before reinstalling the ECO bolt-on jacket.