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OPERATION
Hazardous pressure
can cause serious
personal injury or
property damage.
Pumps operating against a closed
valve can cause system failure,
personal injury and property damage
Hazardous pressure
can cause personal
injury or property
damage
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury, death or major property damage
Hazardous or toxic
fluids can cause
serious injury.
If pumping hazardous or toxic fluids,
system must be flushed prior to
performing service
Hazardous pressure
can cause personal
injury or property
damage
Failure to relieve system pressure prior
to performing pump service or
maintenance can cause personal injury
or property damage.
PRE-START UP CHECK LIST
1. Check the alignment of the pipes to the pump. Pipes must
be supported so that they do not spring away or drop
down when the pump flanges or union joints are
disconnected.
2. Install vacuum and pressure gauges near the intake and
discharge flanges. These can be used to check the actual
suction and discharge conditions after pump start-up.
3. Inspect complete piping system to ensure that no piping
loads are being placed on the pump.
4. Secure appropriate hose connections.
START UP PROCEDURES
NOTICE:
Consult the "general pump troubleshooting" section of
this manual if difficulties during start up are experienced.
1. Ensure that appropriate valves are open in the inlet and
discharge lines.
2. Start the pump. Priming should occur within one minute.
3. Check the vacuum and pressure gauges to ensure the
system is operating within expected parameters. Record
the gauge readings in the "Initial Start Up Information"
section of this manual for future reference.
4. Inspect piping, fittings, and associated system equipment
for leaks, noise, vibration and overheating.
5. Check the flow rate to ensure the pump is operating within
the expected parameters.
6. If equipped with a direct acting relief valve, check the
pressure setting of the relief valve by momentarily closing
a valve in the discharge line and reading the pressure
gauge. This pressure needs to be 15 -20 psi (1.0 - 1.4
Bar) higher than the maximum system operating pressure
or the external bypass valve setting (if equipped).
DO
NOT operate the pump against a closed discharge
valve for more than 15 seconds.
If adjustments need to
be made, refer to the "Relief Valve Setting and
Adjustment" section of this manual.
PUMP SPEED
PTO and hydraulically driven units MUST contain speed
control devices to prevent pump speeds above the maximum
RPM specifications, regardless of the truck engine unloading
speeds. If fluid delivery is less than expected, see the
"General Pump Troubleshooting" section
REVERSE PUMP ROTATION
NOTICE:
When pumps are operated in reverse a separate pressure
relief valve must be installed to protect the pump from
excessive pressure.
It may be desirable to run the pump in reverse rotation for
system maintenance. The pump will operate satisfactorily in
reverse rotation for a LIMITED time, at a reduced
performance level. When operating the pump in reverse, a
separate bypass valve MUST be installed to protect the pump
from excessive pressure.
FLUSHING THE PUMP
NOTICE:
If flushing fluid is to be left in the pump for an extended
time, it must be a lubricating, non-corrosive fluid. If a
corrosive, non-lubricating fluid is used, it must be
flushed from the pump immediately.
To flush the pump, use the following procedure:
1. Allow the pump to evacuate as much fluid as possible.
2. Run cleaning fluid through the pump intake. The cleaning
fluid should be compatible with the pump O-rings and
vane material.
When handling "sticky" fluids that solidify within the pump
(i.e., waxes, adhesives, resins, asphalts, etc.), use a fluid
that will prevent solidification of the fluid being transferred
and facilitate flushing.
3. Operate the pump against a closed discharge for 15
seconds to allow the cleaning fluid to recirculate through
the internal relief valve.
NOTICE:
After flushing the pump some residual fluid will remain in
the pump and piping.
NOTICE:
Properly dispose of all waste fluids in accordance with
the appropriate codes and regulations.
Содержание ATX300A
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