Varian HS452, Инструкция по эксплуатации

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TECHNICAL INFORMATION
l. Do not replace the oil immediately after stop-
ping the machine as the oil may still be at high
temperature.
m. Perform repairs in clean and, where possible,
dust-free areas. Protect all the clearances of
connection points with suitable plastic caps and
cover the machined surface areas of all parts
stripped down until they are put back on the
pump again.
CAUTION NOTES
a. Before putting the pump back into operation
after a breakdown, inspect it and check care-
fully for any other signs of damage.
b. Use only tools that are in perfect working or-
der and specially designed for the job; use of
inappropriate or ineffective tools may cause
serious damage.
c. Perform repairs in clean and, where possible,
dust-free areas. Protect all the clearances of
connection points with suitable plastic caps
and cover the machined surface areas of all
parts stripped down until they are put back on
the pump again.
d. Always check the lubricant and that it is prop-
erly distributed through the pump; inadequate
lubrication may damage the pump seriously.
e. Give the parts some form of marking as you
strip them down to ensure that you reassem-
ble them again in the proper order.
f. Check that there are no scratches or grooves
on the machined shafts, in their seats inside
the pump or on machine-ground surfaces.
Slight scratches and abrasions may be elimi-
nated with very fine emery paper or by a little
light grinding.
g. Before putting a group together, always
spread a little oil over inner parts and mating
surfaces. Replace all seals with original spare
parts before reassembling components.
MAINTENANCE ACTIONS
Maintenance may be seen as the totality of all
scheduled and unscheduled maintenance work.
Maintenance includes:
1. SCHEDULED MAINTENANCE: Maintaining
the nominal state of operation.
2. UNSCHEDULED MAINTENANCE: Restoring
the nominal state of operation
NOTE
The frequency with which repairs are performed de-
pends on the process and presence of substances
that shorten pump life (dust, abrasives, solvents,
water, chemically aggressive substances).
The pump must be cleaned at regular intervals of
time.
CAUTION
Do not clean with Alcohol the plastic or rubber
components of the pump.
Use only the strictly necessary amount of lubricant;
an excess of lubricating oil, like when there is
none, may sometimes compromise proper opera-
tion of the pump.
Only the recommended lubricants, or lubricating
oils with similar characteristics and known and ex-
perimented quality, should be used.
Oil changes must be made with the oil at a suffi-
ciently high temperature, after leaving the pump to
cool for a few minutes following operation.
The drain and filler plugs must not be left open any
longer than is strictly necessary.
When performing maintenance, look out for all
signals that may precede a breakdown, in particu-
lar:
•
traces of corrosion;
•
oil leaks;
•
slack joints or couplings.
Maintenance technicians must:
•
be aware of all applicable national directives
concerning accident prevention during work
on motor-driven pumps and should know how
to apply them;
•
have read and understood all the sections on
“Safety Rules";
•
be familiar with the essential design features
and operation of the pump;
•
know how to use and consult the pump docu-
mentation;
•
be concerned about proper operation of the
pump;
•
make a note of any irregularities in operation
of the pump and take the necessary action,
where appropriate.
Use original spare parts wherever possible and
repair a broken part as best as possible on site or
send it back to the manufacturer for repairs.
18 87-900-978-01(D)