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Installation
Setting the Hydraulic Pressure and Flow
Rate
1. Set the hydraulic pump pressure to the lowest pres-
sure needed using the pressure reducing valve
(NN). This setting should be between 250 - 350 psi
(1.7 to 2.4 MPa, 17.0 to 24.1 bar).
2. Set the hydraulic flow rate to pump at lowest
rate/cycles needed using flow control valve (KK) to
get desired pump speed.
3. With a primed pump and sufficient hydraulic supply,
the pump starts when the timer activates the sole-
noid valve. The pump stops when the timer deacti-
vates the solenoid valve.
Refilling Line (D) Requirements
To relieve the stall pressure in the refilling line (D) a
pressure relief valve (H) (F
(Z) (F
. 7, page 10) must be installed in the system.
IG
Systems without Fill Valve
A pressure relief valve (H) and overflow container (N) for
collecting excess fluid that drains during pressure relief,
must be installed in an easily accessible location
between the remote filling station pump (P) and the
Auto-Fill Shut Off (S). This pressure relief valve is used
to relieve pressure in the refilling line (D) and to reset
the Auto-Fill Shut Off. See Typical Installation, page 7.
A Pressure Relief Kit: 247902 is available from Graco.
Contact your distributor or Graco Customer Service for
additional information about this kit.
Systems with Fill Valve (Z)
Install the fill valve (Z) in an easily accessible location
between the remote fill station pump (P) and Auto-Fill
Shut Off Valve (S). See Typical Installation, page 8.
The fill valve is used to relieve pressure in the refilling
line (D) and to reset the Auto-Fill Shut Off (S). See the
fill valve instruction manual 333393. Graco fill valve, part
no. 77X542 is available. Contact your local Graco dis-
tributor.
6
. 2, page 7) or a fill valve
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Refilling Pump (P) Requirements
The remote filling station pump stalls (dead-heads)
when the reservoir is full, causing the supply system
pressure to rise to the maximum output pressure
of the filling station pump. To help prevent equip-
ment damage or serious injury caused by pressur-
ized fluid, such as skin injection or injury from
splashing fluid, always use a remote filling station
pump with a maximum output pressure of 5000 psi
(34 MPa,
344.7 bar) and use a refill line with a pressure rating
equal to or greater than the refill pump.
3A3429C
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