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Gorman-Rupp Pumps 12B22-B 1059806 thru 1343819 User Manual

Page 8

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OM--00589--03

10 SERIES

PAGE B -- 2

INSTALLATION

c. Carefully read all tags, decals, and markings

on the pump assembly, and perform all duties
indicated. Note that the pump shaft rotates in
the required direction.

Only operate this pump in the direction in-

dicated by the arrow on the pump body

and on the accompanying decal. Other-

wise, the impeller could become loosened

from the shaft and seriously damage the

pump.

d. Check levels and lubricate as necessary. Re-

fer to

LUBRICATION in the MAINTENANCE

AND REPAIR section of this manual and per-
form duties as instructed.

e. If the pump has been stored for more than 12

months, some of the components or lubri-
cants may have exceeded their maximum
shelf life. These

must be inspected or re-

placed to ensure maximum pump service.

If the maximum shelf life has been exceeded, or if
anything appears to be abnormal, contact your
Gorman-Rupp distributor or the factory to deter-
mine the repair or updating policy.

Do not put the

pump into service until appropriate action has
been taken.

POSITIONING PUMP

Lifting

Use lifting equipment with a capacity of at least

650

pounds (295 kg). This pump weighs approxi-
mately

125 pounds (57 kg), not including the

weight of accessories, base and power source.
Customer installed equipment such as suction and
discharge piping

must be removed before at-

tempting to lift.

The pump assembly can be seriously

damaged if the chains or cables used to lift

and move the unit are improperly wrapped

around the pump.

Mounting

Locate the pump in an accessible place as close as
practical to the liquid being pumped. Level mount-
ing is essential for proper operation.

The pump may have to be supported or shimmed
to provide for level operation or to eliminate vibra-
tion.

Clearance

A minimum clearance of

18 inches in front of the

cover plate is required to permit removal of the cov-
er and easy access to the pump interior.

SUCTION AND DISCHARGE PIPING

Pump performance is adversely effected by in-
creased suction lift, discharge elevation, and fric-
tion losses. See the performance curve on Page
E-1 to be sure your overall application allows pump
to operate within the safe operation range.

Materials

Either pipe or hose maybe used for suction and
discharge lines; however, the materials must be
compatible with the liquid being pumped. If hose is
used in suction lines, it must be the rigid-wall, rein-
forced type to prevent collapse under suction. Us-
ing piping couplings in suction lines is not recom-
mended.

Line Configuration

Keep suction and discharge lines as straight as
possible to minimize friction losses. Make mini-
mum use of elbows and fittings, which substan-
tially increase friction loss. If elbows are necessary,
use the long-radius type to minimize friction loss.

Connections to Pump

Before tightening a connecting flange, align it ex-
actly with the pump port. Never pull a pipe line into
place by tightening the flange bolts and/or cou-
plings.