Installation and Maintenance Manual
61
Pressure Relief Valves Adjustment Procedures
To check your relief valve setting, first disconnect the hoses. Run the operator either open or closed (the
gate will not move with the hose disconnected. The relief valve is found on the rear of the hydraulic
power unit. It has an adjusting head and lock nut. To adjust, loosen the lock nut and screw the threaded
bolt clockwise for increased pressure, counterclockwise to decrease pressure.
MODEL
FACTORY RELIEF SETTING
SwingRiser (HRG 220 ST)
1350 PSI
SwingRiser Twin (HRG 222 ST)
1350 PSI
There is only limited value in using the relief valve as an entrapment protection device. Photo Eyes or
gate edges are the best methods to protect pedestrians and maintain reserve power to reliably drive the
gate.
Maintenance Schedule
Swing Gate Operator Maintenance Schedule
Name of part
What to do
Check at these recommended monthly intervals
1
3
6
12
60
Gate and Hardware
Check for damage
*1
X
Gate post
Check for excessive wear
*2
X
Anchor bolts
Check for tightness
*3
X
Support post
Check for movement
*4
X
Limit Switches
Check normal function
*5
X
Fluid level
Check for loss of fluid
*6
X
Hydraulic fluid
Drain and replace fluid
*7
X
Clock Battery
Replace
*8
Motor Brushes (DC Only)
Replace
*9
X
Summary of Contents for SwingRiser 14
Page 2: ......
Page 18: ...Installation and Maintenance Manual 8 Tools Required for an Efficient Installation ...
Page 19: ...Installation and Maintenance Manual 9 Swing Gate Post Details ...
Page 20: ...Installation and Maintenance Manual 10 Swing Gate Post Details continued ...
Page 21: ...Installation and Maintenance Manual 11 Swing Gate Post Details continued ...
Page 22: ...Installation and Maintenance Manual 12 HRG 220 Pump Pack ...
Page 23: ...Installation and Maintenance Manual 13 HRG 222 Pump Pack ...
Page 24: ...Installation and Maintenance Manual 14 How Our Hydraulic Swing Gates Work ...
Page 32: ...Installation and Maintenance Manual 22 ...
Page 54: ...Installation and Maintenance Manual 44 Loop Layouts ...
Page 77: ...Installation and Maintenance Manual 67 ...
Page 83: ...Installation and Maintenance Manual 73 Smart Touch Controller Connections ...