Gorman-Rupp Pumps 4D-B 461594 and up - Manual (Page 5)

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.