Pressure Relief Procedures; Ram Pressure Relief Procedure; Pump Pressure Relief Procedure - Graco SaniForce Drum Unloader Repair Parts

Pressure Relief Procedures

Pressure Relief Relief Procedures
Pressure Pressure Relief
Callout letters in these procedures correspond with
control panel information in the operation manual.
Ram Pressure Pressure Relief Relief Procedure
Ram Ram Pressure Relief
Follow the Ram Pressure Relief
Procedure whenever you see this
symbol.
This equipment stays pressurized until pressure
is relieved manually. To help prevent serious
injury from pressurized fluid, such as skin injection
or splashing in the eyes or on skin, follow the
Pressure Relief Procedure when you stop pumping
and before you clean, check, or service the
equipment.
1. For exposed manual pneumatic control:
a. Close the air motor slider valve (AH) and the
main air slider valve (AA).
NOTE: Both are relieving air valves.
NOTE NOTE
b. Set the ram director valve (AD) to DOWN.
The ram will slowly move to the bottom of
its travel.
c. Jog the ram director valve (AD) up and down
to bleed air from ram cylinder.
2. For enclosed pneumatic control:
a. Close the air supply valve.
b. Toggle the ram position control switch (BC)
up and down to bleed air from the ram
cylinders. The ram will slowly move to the
bottom of its travel.
3. For electro-pneumatic control:
a. Stop evacuation activity.
b. If used, open all user-supplied system fluid
drain valves that are downstream of the
pump.
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Procedures
Procedures
Procedure
Procedure
c. Navigate to the System Configuration
screen. Press the Shutdown/Depressurize
icon. When pressed, a pop-up will appear
indicating the system is depressurizing. The
ram will slowly move.
d. The pop-up will indicate if depressurization
was completed successfully. Close the air
supply valve (CE).
NOTE: A pressure alarm will appear after
NOTE: NOTE:
supply air is removed.
Pump Pump Pressure Pump Pressure Relief Pressure Relief Procedure Relief
Follow the Pump Pressure Relief
Procedure whenever you see this
symbol.
This equipment stays pressurized until pressure
is relieved manually. To help prevent serious
injury from pressurized fluid, such as skin injection
or splashing in the eyes or on skin, follow the
Pressure Relief Procedure when you stop pumping
and before you clean, check, or service the
equipment.
1. Using pump operation controls on the control
panel, remove incoming air to the pump motor.
2. Open a pressure relief valve on the outlet line.
Procedure Procedure
3A5404F