Hyden ENVIROSPRAY User manual

Date Printed: 07/11/2011 “Commercial-in-Confidence” Page Number: 1
Hyden Engineering Pty Limited
1/48 Racecourse Road
RUTHERFORD NSW 2320
Telephone: [phone]
Facsimile: [phone]
E-mail:[email protected]
ABN: 17 129 010 902
ENVIROSPRAY Manual
Manual Date: June 2011Manual Number: 06500976A
System Background and Operation

Date Printed: 07/11/2011 “Commercial-in-Confidence” Page Number: 2
Hyden Engineering
Contents
23Speed Sensor Monitor2.5.2
13Road Speed Control2.2.3 10Spot Spraying2.2.2 8Basic Spraying2.2.1
5Spray Toggle Switches2.1.1 5Auxiliary Outlets Switch2.1.2 5Using the Pause Function2.1.3 5Power Indicator2.1.4 6Vari-Spray Buttons2.1.5 6Road Speed2.1.6 6Spot Spray2.1.7 7Display Window2.1.8 7Pedal Indicator2.1.9 7Centre Spray Indicator2.1.10 7Left Spray Indicator2.1.11 7Right Spray Indicator2.1.12 7Cannon Switch/s2.1.13 7Cannon Controls2.1.14 7Foam Injection Switch (optional)2.1.15
15Combination Spraying2.2.4
7Jet/Fog Switch (optional)2.1.16
19Basic Cannon Operation2.3.1 21Using the Auxiliary2.4 21Auxiliary Systems2.4.1 22System Controls2.5 22Tank Level Monitoring System2.5.1
24Motor Filter Sensor2.5.3 24Motor Failing Sensor2.5.4
19Using the Remote Cannon2.3
5System Controls2.1
8Using the Spray System2.2
5System Operation23Background1.1 3Enviro-Spray1
Page
Number
Topic
Reference
Number

Date Printed: 07/11/2011 “Commercial-in-Confidence” Page Number: 3
Hyden Engineering
1.1 Background
Enviro-spray™was specifically developed to be a plug and play system that optimises the use of limited water
supplies while still maintaining the dust control barrier required by regulations. The user interface has been
simplified by replacing the old dial type control with a user-friendly up-down push button control, foot pedal
stop-start switch and LCD display. The Enviro-spray™push button control sets the water flow rate, road speed
and spot spray distances while constantly measuring the water level, filter condition and motor condition. The
system can be preset to have default water flow rates, road speed settings and spot spray distances so that the
operator may simply select road speed, spot spray or both and drive while the Enviro-spray™system takes
control. It will stop and start the water flow at intersections and automatically adjusts the water flow rate as the
machine speeds up and slows down while also stopping and starting to provide the set wet and dry distances.
Night time dust control has always been a daunting task for operators as they could not see the spray while
driving and constantly had to adjust the flow control dial as they sped up and slowed down. The Enviro-spray™
road speed control has changed the face of night time dust control by giving the operator the confidence to
preset the system to suit the conditions prior to driving and can have confidence that the Enviro-spray™system
will do the job.
Enviro-spray™also converted the first response capability of a standard water truck to a new level giving water
throw in excess of 70-meters with an automatic foam injection system adjusting the foam to suit the desired
water rate and this increases the efficiency of the limited foam supply. The Enviro-spray™foam injection
system also allows the use of multiple outlets so that foam may be simultaneously supplied to all water cannons,
fire hose reel and Excavator backup systems giving the system the ability to become the hub of the fire fighting
response.
1 Enviro-Spray™

Date Printed: 07/11/2011 “Commercial-in-Confidence” Page Number: 4
Hyden Engineering
Maintenance was also kept top of mind in the development of the Enviro-spray™system and this has been
optimised by the use of separate modules for each key component, oversize filtration and with conditional
indicators giving feedback to the operator. Each key control valve used in the Enviro-spray™system has its
own set of pressure test points and pressure gauge together with manual overrides so that diagnostics can be
performed using these test points while following the simple diagnostic tree on the door of the control valve
box. The system can be manually overridden if required to allow maintenance to be scheduled at a convenient
time.
Connection of the Enviro-spray™hydraulics involves fitting the Enviro-spray™soft start sequence valve in the
line from the hoist pump pressure filter and connecting the return line from the Enviro-spray™water pump
module to the original hoist valve. There is no loss of brake cooling and the soft start sequence valve prevents
the usual shock load when starting the water system since there is adequate pressure to cause the water pump to
slowly rotate while unloaded. The Enviro-spray™system also drops the average running pressure of the hoist
pump to below 70-bar (1000-psi) in place of the 175-bar (2500-psi) seen with flow control systems and this
significantly reduces the wear on the hoist pump and removes the overheating problem commonly associated
with water truck hydraulics. The filtration system fitted to the Enviro-spray™water pump module works as a
full flow kidney system filtering the hydraulic oil to 20-micron.
The basic system consists of a hydraulic pressure sequence valve and water pump module with an electric
control system to provide all the basic features such as water rate proportional to road speed, fixed flow rate
independent of engine speed and a positive start and stop spot spray with adjustable wet/dry distances. Options
such as Enviro-spray™foam injection, spray head controls, water cannon controls and water level monitoring
can all be added to realise the full potential of the Enviro-spray™system and are simply fitted and plugged into
the control system.
The backbone of the system is the large variable motor that controls the speed of the water pump and replaces
the complex and troublesome flow control valves that overheat the system and limit the power available.
The control system utilises closed loop technology to set the water rate and thus has made it possible to enhance
operator control with features such as, water rate proportional to road speed, fixed rate independent on engine
speed and positive start and stop spot spray with adjustable wet/dry distances.

Date Printed: 07/11/2011 “Commercial-in-Confidence” Page Number: 5
Hyden Engineering
2.1 System controls
2 System operation
2.1.1 Spray Toggle Switches
(typical 5 spray system illustrated, layout
may vary)
Spray System Switch
This is the main power switch used to
turn the Enviro-spray System on.
Spray Nozzle Switches
These switches are used to turn on the
corresponding spray heads. A typical
system may have from 3 up to 6 spray
heads.
2.1.2 Auxiliary Outlets Switch
This switch is used to turn the spray
system on without turning spray heads or
remote cannon on. This is primarily used
in conjunction with a manual cannon or
hose reel.
2.1.3 Foot switch
This is used as a master control switch by
turning all sprays and pump off in one
action. It will also turn cannon or
auxiliary outlets off.
2.1.4 Power Indicator
Green indicator will be on while the
spray system is switched on.