Specac GS15051, Руководство пользователя

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User Manual
4
at the maximum tonnage load capability of the low tonnage gauge
fitted. Higher tonnage loads than the low tonnage gauge maximum can
still be obtained on the 15T or 25T press if they are to be applied, but
then the pressure relief valve assembly will have to be readjusted to
allow for a higher tonnage load to be hand pumped and contained on
the system and therefore the low tonnage load gauge control valve
MUST also be turned off.
As an example for use of the 0 to 5 ton low tonnage gauge kit P/N
GS15055 when fitted to an
Atlas™ 15T Manual Hydraulic Press P/N
GS15011 (which can be operated to apply up to a 15 ton maximum
load), set the pressure relief valve accordingly such that a maximum
load for 5 tons can be hand pumped on the press. This maximum load
is indicated on both the standard 0 to 15 ton load gauge and 0 to 5 ton
low tonnage load gauges that have been fitted. Any further pulls on the
pump handle of the press results in an excess pressure being vented
off at the pressure relief valve. In this way the pressure relief valve acts
as a safety device to not only prevent overloading of and damage to
the low tonnage gauge mechanism, but also to any sample or die
assembly in the pressing area of the press itself.
If a tonnage load higher than 5 tons is needed for application, switch
off the low tonnage load gauge at its control valve and re-adjust the
pressure relief valve assembly for a higher tonnage load to be applied
and contained.
Therefore, use of an Atlas™ 15T Manual Hydraulic Press allows for
any tonnage load up to 15 tons to be applied to a sample or an
evacuable pellet die in the pressing area. However, if a finer reading of
the load applied up to a maximum of 5 tons is required, then the low
tonnage gauge kit P/N GS15055 can be fitted to the press and the
additional low tonnage gauge provided is switched on-line.