Goulds Pumps 3420 - IOM User Manual

Page 30

Install the coupling guard (Fig. 13). Refer to the
Coupling Guard Installation and Disassembly Section
(Appendix I).

The coupling guard used in an ATEX classified
environment must be constructed from a
non-sparking material.

WARNING

Never operate a pump without the coupling guard
installed. Personal injury will occur if the pump is run
without the coupling guard.

Cooling systems such as those for bearing
lubrication, mechanical seal systems, etc, where
provided, must be operating properly to prevent
excess heat generation, sparks and premature
failure.

Rotate shaft by hand to ensure it rotates smoothly
and there is no rubbing which could lead to excess
heat generation and or sparks.

Ensure that pump and systems are free of foreign
objects before operating and that objects cannot
enter the pump during operation. Foreign objects in
the pumpage or piping system can cause blockage of
flow which can result in excess heat generation,
sparks and premature failure.

Do not insulate bearing housings as this can result
in excess heat generation, sparks and premature
failure.

Check for magnetism on the pump shaft and
degauss the shaft if there is any detectable
magnetism. Magnetism will attract ferritic objects to
the impeller, seal and bearings which can result in
excess heat generation, sparks and premature
failure.

Leakage of process liquid may result in creating an
explosive atmosphere. Ensure the materials of the
pump casing, impeller, shaft, sleeves, gaskets and
seals are compatible with the process liquid.

A build up of gases within the pump, sealing system
and or process piping system may result in an
explosive environment within the pump or process
piping system. Ensure process piping system, pump
and sealing system are properly vented prior to
operation.

LUBRICATING BEARINGS

Bearings must be lubricated properly in order to
prevent excess heat generation, sparks and
premature failure.

CAUTION

Pumps are shipped without oil.

Oil Lubrication: Oil lubricated pumps are not lubricated at
the factory. Constant level oilers are supplied with oil
lubricated pumps. The oiler can be found in the box of
fittings that accompanied the pump during shipment. The
oiler was adjusted to maintain the proper oil level before
leaving the factory. The adjustment should be checked in
case the setting was disturbed during shipment. See Figure
14. The correct dimensions for A and B are given in Table
2. Fill the bearing housing with oil using the oil bottle.
Continue to refill the oil bottle until oil stops draining from
the oiler into the housing. See Table 4 for recommended
oil.

Pure/Purge Oil Mist: For pure oil mist, connect the oil
mist system according to the manufacturer's
recommendations. For purge oil mist, connect the oil mist
system per the manufacturers instructions. Fill the pump
with oil as detailed for oil lubrication above. In both cases,
refer to the pump dimensional drawing for the location of
the oil mist connections to the bearing housings. See Table
2 for oil bottle settings and Table 4 for recommended oil.

3420 IOM 8/09

Fig. 13

Instructions

1. Remove adjustment

assembly from oiler.

2. Adjust bars to dim. "A".

3. Lock in position.

4. Replace adjust. assem. in

oiler

Fig. 14