User's Manual

10 309133
Installation
 To change the differential across the pressure
compensating valve, adjust the precision air regu-
lator pressure up or down to bring the fluid pressure
gauges to within the 300 psi tolerance (obtain a
pressure difference as close as possible to zero
psi).
 Adjust the air regulator when the material is being
dispensed.
 By increasing the air pressure to the cylinder,
you increase the outlet fluid pressure.
 By decreasing the air pressure you decrease
the outlet fluid pressure.
 Ensure that the pressure compensating valve’s
piston always floats and does not extend to the end
of its stroke and remain there. Check this by
watching the spool between the air cylinder and the
main body of the pressure compensating valve.
 The spool should move down when the supply
pump changes its stroke and move up when
the supply pump pressure is returned to nor-
mal.
 If the spool does not retract, slightly reduce the
air pressure to the air cylinder. When the
dispense valve is closed the spool will retract
slightly, causing a relieving effect in the dis-
pense hose.
Pressure Relief Procedure
This procedure is described in the instruction manual
that was supplied with your system. Please refer to
that document.
MOVING PARTS HAZARD
Follow the Pressure Relief Procedure
in your separate system manual before
checking or repairing the ram or any
other part of the system and when shutting down
the system. Keep hands and fingers away from the
follower plate, fluid pump inlet, and lip of the fluid
container when raising or lowering the ram to
reduce the risk of pinching or amputating hands or
fingers.
During operation, also keep hands and fingers
away from limit switches to reduce the risk of
pinching or amputating hands or fingers.
WARNING
WARNING
The material and equipment will be
hot! To reduce risk of injury, wear eye
protection, gloves and protective clothing
when installing, operating, or servicing
this dispensing system.
WARNING
HIGH PRESSURES CAN CAUSE SE-
RIOUS PERSONAL INJURY. Be sure
to OPEN THE DISPENSE VALVE
DURING SYSTEM HEATUP to allevi-
ate pressure which might occur in the system due
to material expansion.
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. Fluid
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, moving
parts, follow the Pressure Relief Procedure
whenever you:
 are instructed to relieve the pressure
 stop spraying/dispensing
 check or service any of the system equipment
 install or clean the spray tip/nozzle