Burks 104300 설치 및 운영 매뉴얼 - 페이지 7

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IMPROPER ADJUSTMENT OF A NEW BURKS TURBINE PUMP WILL INVALIDATE THE WARRANTY.

We are placing a wax over the adjusting screws on all turbine models (excluding the CR models). The wax on

the CR model is placed in the socket head of the allen screw. This change has been placed to ensure that the

adjustmentsare to factory settings when we ship them out. If these pump are returned for a warranty claim,

Crane Pumps & Systems will be able to tell if the adjustment has been tampered with. If the unit has been

tampered with, the pump may not be covered under Crane Pumps & Systems warranty policy.

LIFE-LOK® External Impeller Adjustment is a patented feature found exclusively on BURKS Turbine Pumps. It allows for

precise setting of pump performance during production testing.

Every BURKS Turbine Pump is factory tested for optimum performance, and the impeller position is locked in. Any further

adjustment of a new pump is not required or recommended.

LIFE-LOK® may be used for ﬁ eld readjustment to match systems pressure requirements if necessary.

LIFE-LOK® also provides a means of restoring pump performance without disturbing piping, disassembling pump, or

costly parts replacement.

TO ADJUST IMPELLER:

1. Disconnect electrical power. Adjustment should never be attempted while pump is running.

Serious damage could occur.

2. Loosen slide lock and remove tab from hole in adjusting screw.

3. Turn the Adjusting Screw with a Spanner Wrench. (Do Not Use A Screwdriver, Punch or Other Tool.) At the same

time, rotate the shaft back and forth with a common nail or other object placed through the hole provided for that

purpose on close-coupled pumps. The shaft on base mounted pumps may be rotated by turning at the coupling

end. (An Adjustable Spanner Wrench - Part No. 7492 - is available from BURKS.)

4. Rotate Adjusting Screw in a clockwise direction (Fig. 1). A drag will be felt as the impeller comes into contact with

the raceway. At this point, make a mark on the pump frame and adjusting screw, across one of the spanner wrench

holes (Fig. 2).

5. Rotate Adjusting Screw in the opposite direction (counter-clockwise) to back the impeller off and provide clearance

between it and the raceway. The proper clearance may be obtained by moving the adjusting screw approximately

one half the distance between two of the spanner wrench holes as indicated by the reference marks made in

Step 4 (Fig. 3).

6. Lock the Adjusting Screw in place. Insert the tab of the Slide Lock in the nearest spanner wrench hole and tighten the

lock screw.

7. Re-connect electrical power and start pump.

If pump seems to labor unduly when coming up to pressure, a slight additional adjustment to increase the

clearance between the impeller and raceway will be necessary. Do not allow pump to operate with insufﬁ cient

clearance between those two parts. If adjustment does not restore desired performance, replacement of the

impeller and raceway may be necessary. These are matching parts and must be replaced as a set. Repair kits

are available for BURKS Turbine Pumps.

IMPELLER ADJUSTMENT INSTRUCTIONS

CAUTION !