Operator's Manual

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
%!% Onan, 4 cycle, opposed twin, air cooled, 24 hp
@ 3600 rpm, 60 cu. in (983 cc) displacement. Electric
start. Heavy duty valve package. Extended service air
cleaner. 3 quart oil capacity. Solid state ignition. Meets
California Exhaust Emission Standard for 1995 Lawn
and Garden Equipment.
#+* ) Electromagnetic, three groove belt drive for
water pump and driveshaft flange brake/clutch for
main valve gearbox.
#*(!# 12 volt system with fused protection. Relays
for all high current switching. Electronic controller and
sensors for automatic start-up and shut-down
sequence of water injection system. Group 28 battery
with 525 cold crank amps.
+# '!*/ 9 gallons gasoline.
*( %"*!&% /)*$
( !#*( - A 20 mesh strainer is required in the
supply line to the inlet port.
+''#/ !#*( - Replaceable cartridge in plastic
housing with air bleed button.
*( ())+( -!* - Senses for water
pressure after filter and turns on when pressure is
over 20-28 psi and turns off when pressure drops
below 7-13 psi.
+$' - Pump is a Toro exclusive design with cast
stainless steel head and 3 piston plungers. Vee
packing seals and Kevlar guides. Forged
crankshaft with plasma sprayed ceramic on
stainless steel plungers and cast iron connecting
rods. Nominal performance is 4 gpm @ 5000 psi
with 1400 rpm input.
+$+#*&( - Toro exclusive design with low
charge pressure sensor, nitrogen gas charged to a
maximum of 2500psi.
$ % (&. - Reduction gear drive for
cam that actuates main water valve. Roller cam
follower rides on cam specifically designed to
control water injection at 5.3 cycles per second
(320 rpm) and store energy in accumulator
between injections. Cast iron case also serves as 4
quart hydraulic reservoir.
#, - Cast stainless steel valve body functions
as mounting base for accumulator, gearbox and
manifold outlet. All high pressure water flows in
and out through the valve body. Pressure
balanced valve spool with floating, hardened
stainless seat aligns during assembly. Bleed valve
in base allows for bleed-off of high pressure and
drain down for cold weather storage. Bolted
flanges and polyurethane O-rings mate all
components to valve body.
())+( #! #, - Circle Seal Controls
poppet-type valve preset to 5000 psi with
corrosion resistant stainless and brass materials.
%!&# % &00#) - Extruded stainless steel
manifold with11 flanged nozzle extensions
containing check valves and hardened stainless
discharge orifice. Check valves may be reversed in
housing to block unused nozzles.
&%*(&#)
%!% %# - Hour meter, water pressure
gauge and fuse block.
&%*(&# &. %# - Throttle, choke, water
system engage and disengage buttons.
#*(&%! &%*(&# &+# - Solid state potted
device for sequencing start and stop of water
system. Interlocks for water pressure.
(&+% ' '%%* &% *&- , !#
Aerating: 1.2 mph 4" Hole Spacing
1.8 mph 6" Hole Spacing
Transport: Up to 24 mph
!$%)!&%)
%* - 44 inches (w/o hitch).
 #) - 37.5 inches
!* - 53 inches.
! * - 39 inches.
! * -900 pounds.
(*!&% !*  38.7 inches with 11 nozzles on 3.87
inch centers.
(*!&% '*  4 to 6 inches depending on turf
conditions and nozzle configuration.
&# **(% Dependant on tow vehicle in the
direction of travel, and 3.87 or 7.74" increments in
width.