Installation and Operations Manual
13
Inlet Filter (if installed)
Check after first 8 hours of operation. Clean or replace inlet filter element at every oil change or 1000 or 3000 hours
depending on application or if excessive pressure drop is noticed.
CAUTION:
Depending on the mounting position of the filter be careful not to allow accumulated foreign material to
fall in the pump suction opening when removing the filter cartridge. Horizontal filter installation is recommended to
prevent this.
Pump models PVL 200 through PVL 540 have built in inlet filters, which should be cleaned whenever the pump oil is
changed.
Exhaust filter
Replace after every 1,500-2,000 hours of operation or every 5 to 6 months. All pumps fitted with a back pressure
indicator should use this as a guide for changing the filter whenever the pressure has reached the red mark of the 10
psig.
Do not clean or re-use these filters. Filters must be disposed of in a proper way as they might contain toxic
substances carried over from the process. Always replace the O-rings on filter when changing.
CAUTION:
Over filling pump with oil may result in misting and if filter is oil soaked, it must be replaced.
Bearings and Shaftseals
Internal pump components do not require preventative maintenance. Bearings are self-lubricating needle bearings.
Maintenance Schedule
To help ensure trouble free system operation a basic maintenance schedule consisting of the following system checks
is recommended.
First 8 hours of operation
Check oil level and inlet filter element. Clean strainers and remove temporary inlet screen. Check for water in sight
gauge and drain if necessary. Check piping for signs of oil leakage and tighten if necessary. Repeat this procedure
every 500 hours of operation under normal conditions.
Daily
Check oil level daily. Top sight glass should be have full when pump is stopped.
Weekly
Inspect inlet filter and replace if necessary.
Change oil every 500 hours of operation or when oil darkens. Drain oil when hot, use caution and properly dispose of
the oil.
Replace the gas-ballast felt disk (pos. 55).
The operating life of the pump is greatly enhanced based on the oil quality and conditions of filters. Vanished or
darkened oil is a sign of trouble. Plugged filters reduce performance and may damage pump. Periodic maintenance
will offer the best protection for your equipment.
Note: Varnished pumps are not covered under warranty.
2000 Hours Operation/Every Year
Replace the oil separator (pos. 41)
Check and if necessary replace the coupling elastic insert (pos. 23)
Содержание PVL 10-15
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