Waterax BB-4MD, Руководство пользователя

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Page 4
WATERAX BB-4 Owner's Manual
4 04/2015
Introduction
About this Manual
This manual contains general operation, care and servicing procedures for the following
WATERAX BB-4 high pressure 4-stage centrifugal pumps:
Pump designation Engine used
BB-4-18 Briggs&Stratton 18 HP gasoline engine
BB-4-23 Briggs&Stratton 23 HP gasoline engine
BB-4-21 Honda GX630 21 HP gasoline engine
BB-4-D902 Kubota D902 25 HP diesel engine
These instructions cover most wildland and municipal pump applications. If the application
the pump is being used for does not fall into these general guidelines, consult WATERAX
Inc. for any additional safeguards, operating, or maintenance considerations that may be
required.
For full service and maintenance instructions regarding the pump, please refer to the
Service section. For maintenance instructions regarding the engine, as well as for oil and
fuel recommendations, refer to the engine manufacturer’s manual.
Please see www.waterax.com additional documentation related to this product such as
the WATERAX product guide, technical notes, links to the engine manufacturer’s
manuals, news and other updates about WATERAX and its goods and services.
Abbreviations and Terms
The following terms and abbreviations are used in this manual:
Cavitation Formation of air bubbles in a liquid inside a centrifugal pump,
causing low pressure points and loss of pump capacity.
Dead-heading Also called shut-off. Leaving the pump running with all the
discharge valves closed. The pump should not be left in this
mode for more than a minute since the pump can overheat and
become damaged. To avoid this, a re-circulation line (if
provided) should be opened or a discharge line left slightly open
to allow fresh water to continue to enter the pump.
Drafting Process of using vacuum (suction) to take water from a stream
or impoundment.
NH National Hose. This is a type thread specified in NFPA 1963.
Formerly known as NST (National Standard Thread).
NPSH National Pipe Straight Hose. This is a type of thread that is
slightly smaller in diameter than NH, with more threads per inch
than the same nominal size of NH thread. NPSH is also called
IPT (Iron Pipe Thread).
RPM Revolutions Per Minute.