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Operation – Gorman-Rupp Pumps 4D-X3 1P User Manual

Page 12

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OM--01515

D SERIES

OPERATION

PAGE C -- 1

OPERATION --- SECTION C

Review all SAFETY information in Section A.

Follow the instructions on all tags, labels and
decals attached to the pump.

This pump is designed to handle non-

volatile non-flammable liquids contain-

ing specified entrained solids. Do not

attempt to pump volatile, corrosive, or

flammable liquids which may damage

the pump or endanger personnel as a

result of pump failure.

After the pump has been installed, block

the wheels and secure the pump to pre-

vent creeping. Make certain that the

pump and all piping or hose connec-

tions are tight, properly supported and

secure before operation.

Pump application will affect its performance, espe-
cially discharge velocities. Consult the Gorman-
Rupp factory for actual performance levels for the
pump.

Install the pump and piping as described in

IN-

STALLATION. Make sure that the piping connec-
tions are tight, and that the pump is securely
mounted. Check that components are properly lu-
bricated (see

LUBRICATION in MAINTENANCE

AND REPAIR).

Make certain that any positive shut-off

valve installed in the suction line is open

before operating the pump; excessive re-

striction will cause incomplete filling of the

diaphragm chamber and result in short-

ened diaphragm life. No positive shut-off

valve should be installed in the discharge

line.

STARTING

Consult the operations manual furnished with the
motor before starting the pump. Open any valves
installed in the suction line and start the pump.

OPERATION

The pump is designed to operate at ap-

proximately 52 cycles per minute through

a gearbox with A 33.34:1 ratio and a 1750

RPM

maximum input drive. Make certain

that the electric motor installed does not

exceed this rpm; otherwise, pump compo-

nents may be destroyed.

Priming

The pump may not prime immediately because the
suction line must first fill with liquid. If the pump fails
to prime within five minutes, stop the motor and
check the suction line for leaks.

OPERATION CHECKS

Gearbox Check

Check that the gearbox is properly lubricated (see
LUBRICATION in MAINTENANCE AND RE-
PAIR
).

Leakage Check

No leakage should be visible at pump mating sur-
faces, connections or fittings. Keep all line connec-
tions and fittings tight to maintain maximum pump
efficiency.

Strainer Check

If a suction strainer has been installed, check and
clean it as necessary. It should be cleaned if pump