Maintenance Schedule - Pressure Tech Swiss PT-1000 Operation Manual

DAILY
Periodically monitor the pressure on the HMI home screen to be certain the inlet pressure remains
positive. If the filter is clogged, the unit will trip an alarm for maintenance. A negative inlet pressure
is a sign that the filter bag needs to be changed. We recommend using a 5 micron bag filter, a less
fine filter will let unwanted particles pass through and possibly damage the pump. Open the bleed
valve on the top of the filter vessel (part # 610016). Do not start the pump unless the filter vessel
is full of oil and there is a solid stream of coolant coming out of the bleeder line through the provid-
ed 1/4'' clear hose (this line returns to the machines oil tank). This will purge air pockets in the
hydraulic system.
WEEKLY
Clean the machines main coolant tank by removing all chips and debris. A dirty holding tank will
cause the filter to clog prematurely. The weekly maintenance schedule is a recommendation and
may vary from application to application. When cutting aluminum you may find that the filter bag
clogs faster than when cutting stainless steel. Also, three shifts of operation a day vs one, may
require additional attention and frequency of maintenance.
SPECIAL NOTES
• During pump operation, make sure that oil based coolant does not create a lot of foam.
Contact your coolant supply company to get an additive that prevents foaming. Check and fill
the machine reservoir as needed.
• When turning the unit on frequently in your program (more than 3 times per minute)
change your program so that you alternate the line being used with an interval of at least 2
seconds between. This will keep the pump running constantly. Frequent starting and stopping
puts unnecessary load on the unit.
• Pay extra attention to the level of oil in the pump head. Running the pump unit with no hydraulic
oil will cause the pump to fail.
Operation Manual for PT-1000 & PT-2000

MAINTENANCE SCHEDULE

Page 6