JABSCO 51270 Series Скачать руководство пользователя страница 3

INSTALLATION AND OPERATION

P

UMP MAY BE MOUNTED

in any position.  When installed

vertically motor pump units should be installed so the
motor is above the pump head.

T

HE ROTATION OF THE PUMP

shaft determines the location of

the pump inlet and outlet.  Before installation rotate
pump shaft and impeller in the direction of the required
operation to reduce initial start up torque.

A

LL PUMP PIPE WORK

must be adequately supported to

avoid stress on pump and pump components and
consequential leakage.

B

ELT DRIVEN PUMPS

.  

If excessive belt tension exists this

will cause rapid belt wear and result in premature
bearing failure.  It should be possible to deflect a
correctly tensioned belt between pulleys about 16mm
(0.6”) per metre (3’4”) of span by applying finger
pressure.  Ideally belt to pulley contact arc should be
about 120º but never less than 90º.

C

RANK SHAFT MOUNTED PUMPS

require a torque arm to be

designed and fitted so that only pure torque reaction
will result.  Other unnecessary loads must be avoided.

O

PERATION

L

IMITS

Pump should not be operated above

the published performance without prior approval.

AC 

MOTOR PUMP UNITS

ALL ELECTRICAL WIRING should

be connected and installed by a competent electrician.
A qualified person must ensure that the installation
conforms to the Electrical and Mechanical requirements
of local and national regulations.  All equipment
operating within a flame proof area must comply with
the relevant standards applying to that area.  Before
using the pump, ensure that your electrical supply
corresponds with the voltage range marked on the
machine.

P

UMPS ARE DRY SELF PRIMING

i.e. do not require to be filled

with liquid to start up.

D

RY RUNNING

.

Jabsco pump units depend on liquid to

lubricate impeller surfaces.  A dry running period of 30
seconds maximum on initial prime is generally a safe
length of time.  If pump fails to prime in this time then
stop and check for leaks in pipe work and impeller
damage.

C

APACITORS

in motor circuits retain a charge after the

supply has been isolated.  This must be discharged
before servicing starts to avoid the risk of electrical
shock.

L

ABELS

should be attached to all surfaces over 60°C

(140°F) indicating ‘HOT AREAS’.

I

MPELLER

T

EMPERATURE

operating ranges;

Neoprene impellers

4° - 80° C (40° - 176° F)

Nitrile impellers

10° - 90° C (50° - 194° F)

W

ARNING

- THIS APPLIANCE MUST BE EARTHED UNLESS

OTHERWISE SPECIFIED motors are not flame proof and
can spark, explosion and death can occur.

SAFETY ADVICE

E

NSURE THAT ALL MOVING PARTS

are adequately guarded to

prevent accidental contact.

L

EAKAGE

from mechanical, lip, and pack gland seals

could cause a hazard.  If liquid being pumped is toxic or
corrosive then preventative measures should be taken
to reduce contact.

D

O NOT USE FOR PUMPING PETROL

, toluene, benzene, or light

fraction petroleum products such as solvents, thinners
or other liquids with flash points below 37°C (98.6°F).

F

REEZING TEMPERATURES

- do not permit liquid to freeze in

pump body.  Drain pump by loosening end cover.

I

T IS A REQUIREMENT OF

COSHH (1988)

regulations that the

manufacturers instructions in the handling of
hazardous substances must be observed at all times.

T

O CONFIRM WITH THE

H

EALTH AND

S

AFETY AND

COSHH

REGULATIONS

, Jabsco require that any pump or part of a

pump that is returned to this company for repair or
examination, or for any reason whatsoever, will be  suit-
ably packed and accompanied by a letter stating what
the pump/part has been pumping.

I

F THE LIQUID OR PRODUCT IS HAZARDOUS

or in any way

dangerous, this must be stated and the chemical make
up of it must be stated in detail.  UNLESS THIS
PROCEDURE IS OBSERVED the unit will not be accepted
on our company premises.  The only exception to this
rule is if the pump is returned is new and unused.

Installation, Operation and Safety Advice

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