beautypg.com

Gorman-Rupp Pumps 4D-B 461594 and up User Manual

Page 5

background image

D SERIES

OM--01505

PAGE A -- 1

WARNINGS

SAFETY- SECTION A

These warnings apply to D Series Basic

Diaphragm pumps. Gorman-Rupp has

no control over or particular knowledge

of the power source which will be used.

Refer to the manual accompanying the

power source before attempting to be-

gin operation.

Before attempting to open or service the

pump:

1. Familiarize yourself with this man-

ual.

2. Lock out incoming power to the

power source to ensure that the

pump will remain inoperative.

3. Allow the pump to completely cool

if overheated.

4. Close the discharge valve (if

used).

5. Drain 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.

Do not operate the pump without the ec-

centric and coupling guards in place

over the rotating parts. Exposed rotat-

ing parts can catch clothing, fingers, or

tools, causing severe injury to person-

nel.

The gearbox provided on this pump is

designed for operation at 1750 RPM

maximum input speed. If operated at a

higher RPM, pump components may be

destroyed.

Install and operate only an explosion

proof motor in an explosive atmo-

sphere. Install, connect, and operate

the motor in accordance with the Na-

tional Electric Code and all local codes.

If there is a conflict between the instruc-

tions in the manual accompanying the

unit and the National Electric Code or

the applicable local code, the National

or local code shall take precedence.

Never install a positive shut-off valve in the

discharge line; discharge restrictions will

cause excessive friction loss resulting in

overloading and destruction of pump and

drive components. It is strongly recom-

mended that unless absolutely necessary,

no positive shut-off valve be installed in the

suction line; excessive restriction will

cause incomplete filling of the diaphragm

chamber and result in shortened dia-

phragm life.