Clarke GRIZZLY User manual

GRIZZLY®
ULV SPRAYER
INSTRUCTION
MANUAL AND
PARTS LIST
REV. v 2.5.210

TABLE OF CONTENTS
GRIZZLY® ULV SPRAYER
i
Warranty Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Clarke Grizzly Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Forward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Theory of Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Particle Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hour Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Low Pressure Cut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Smart Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Installation, Operation and Maintenance Manual . . . . . . . . . . . .15
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Total Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Control Panel Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warning LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Calibration LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
POWER Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Upper Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Left Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Right Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

GRIZZLY® ULV SPRAYER
ii
TABLE OF CONTENTS
Rotary Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Gas Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electric Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
+/– Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SPRAY Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Calibration Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Entering Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Exiting Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Setting Continuous Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Setting Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Setting Target Application Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Setting Maximum Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Setting Minimum Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Setting Swath Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Setting the Flow Calibration Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Determining the Flow Calibration Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Reloading Calibration Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Selecting the Application Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Clearing Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Adjusting Tank Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Setting the Pressure Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

GRIZZLY® ULV SPRAYER
iii
TABLE OF CONTENTS
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Warning Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Daily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Every 50 Hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Every 100 Hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Recommended greasing intervals: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Blower Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Nozzle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Chemical Tank assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Pump Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Gauge Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Engine Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Choke Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Electrical Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Couplings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
GRIZZLY® ULV SPRAYER

WARRANTY
GRIZZLY® ULV SPRAYER
Warranty Information
Clarke Engineering Technologies, Inc. (CETI) warrants that during the first year following the
purchase of CETI manufactured products or equipment, such products or equipment will perform in
accordance with the instruction manuals when properly installed, operated and maintained. During
the warranty period, CETI's sole obligation and liability shall be at CETI's option to:
A. Replace or repair defective parts (including, at CETI's option, replacement of the entire unit) so
that the unit will perform in accordance with the instruction manual.
OR
B. Refund the applicable payment upon return of the product.
Products requiring examination or repair under warranty must be returned postage/freight prepaid to
the CETI factory in Rogers, MN. Examination and /or repair at locations other than the factory shall
only be done upon authorization of CETI and by persons approved by CETI.
Components and accessories with electronic circuitry will carry the same warranty as the CETI
machines provided they are installed at the factory or by an authorized factory representative. Field
installations, modifications and /or the addition of other devices to CETI circuitry void this
warranty. Aftermarket electronic items and parts such as "chips", "processors", etc. are not eligible
for return, credit or warranty once the shipping package has been opened.
This limited warranty does not cover components or parts covered by warranties of other
manufactures.
This limited warranty specifically excludes the cost of labor to customers or to other parties
connected with the examination and /or repair of warranted products.
EXCEPTAS NOTED ABOVE, NO OTHER WARRANTY IS EXPRESSED,AND NONE
SHALL BE IMPLIED, INCLUDING SPECIFICALLYANY WARRANTY OF
MERCHANTABILITY OF WARRANTY OF FITNESS FOR USE OR FOR A
PARTICULAR PURPOSE. EXCEPT FOR THE FOREGOING, CETI SHALLHAVE NO
LIABILITY TO CUSTOMER OR OTHER PARTY ORANY GENERAL, SPECIAL, OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE FAILURE OF THE
PRODUCT(S) TO PERFORM AS WARRANTED, OF FOR ANY REASON.
THIS IS THE TOTALEXTENT OF THE WARRANTY.
1

SPECIFICATIONS
GRIZZLY® ULV SPRAYER
2
Clarke Grizzly Specifications
Manual Issue: Clarke Grizzly 4/05
Engine 18 HP Briggs and Stratton (570 cc)
Blower Roots (350 CFM)
Dispersal Head CLARKE IHPLAT
Fuel Gasoline Min Octane
Fuel Tank Capacity 12 gallons (45.42 liters)
Flush Tank Capacity 1 gallon (3.8 liters)
Insecticide Tank Capacity 15 gallons (56.7 liters)
Droplet Size 90% less than 20 Microns
Flow Rate Up to 18 oz/min (532.26 ml/min)*
Mounting Area 48" (121.9 cm) x 39" (99.0 cm)
Net Weight (Empty) 475 pounds (215 kilos)
Shipping Weight 534 pounds (242 kilos)
Shipping Cube 60.5 feet (1.71 meters)
* With standard 1/4" Piston. Larger pump heads available with flow rates up to 77 oz/min (2277 ml/min).
Every effort has been made to make this manual as complete as possible so that it will provide
maximum assistance in operating and maintaining your CLARKE Grizzly Cold Aerosol Fog
Generator.
THIS MANUAL IS FOR MY CLARKE COLD AEROSOL FOG
GENERATOR - GRIZZLY
SERIAL NUMBER
THE ABOVE INFORMATION, WHICH CAN BE FOUND ON THE CHASSIS,
SHOULD BE FILLED IN. YOUR PROMPT ATTENTION TO THIS MATTER WILL
MAKE IT CONVENIENT FOR YOU IN THE FUTURE, AS THIS INFORMATION
MUST BE GIVEN WHEN ORDERING PARTS.
GRIZZLY® ULV SPRAYER

FORWARD
GRIZZLY® ULV SPRAYER
Forward
This manual is divided generally into two sections - Operating and Maintenance Section and
Illustrated Parts Section.
The Operating and Maintenance Section contains complete instructions for assembling, installing,
operating and maintaining your CLARKE Grizzly Cold Aerosol Fog Generator. No difficulty should
be encountered in following them.
Before attempting to start your unit the first time, study the complete Operation Instructions
carefully and identify all parts referred to. You will find that the operation of your CLARKE Grizzly
Cold Aerosol Fog Generator is a simple matter. However, like all mechanical equipment, your unit
requires a certain amount of maintenance.
The Maintenance Instructions will enable your CLARKE Grizzly Cold Aerosol Fog Generator to
give you continuous and trouble-free service. It is highly recommended that some system be
established to assure the performance of this maintenance as its importance cannot be over-
emphasized.
Although, with proper maintenance, your unit should operate indefinitely without any trouble, there
might come a time when trouble does develop. For such an occasion, a complete Trouble Shooting
Section has been prepared and included in this manual.
The Illustrated Parts Section of the manual is made up of exploded views and parts list. Every part
of the unit is illustrated and identified with a part number. Always order parts by part number,
description and the serial number of your unit.
3

SAFETY
GRIZZLY® ULV SPRAYER
4
THIS CLARKE GRIZZLY COLD AEROSOL FOG GENERATOR
IS MANUFACTURED AND SOLD FOR USE ONLY WITH
INSECTICIDES WHICH HAVE BEEN DULY REGISTRATED AND
APPROVED. DO NOT EXCEED THE DOSAGE SET FORTH ON
THE REGISTRATION LABEL OF THE INSECTICIDE TO BE
USED.
USE OF UNAPPROVED INSECTICIDES AND OR DOSAGE MAY
BE HAZARDOUS
WARNING
1. WARNING: Observe all safety precautions set forth on the registration
lable of the insecticide to be used
2. WARNING: Never operate the fog generator in an enclosed area unless
the exhaust gases are piped to the outside. Exhaust gases contain carbon
monoxide, which is colorless, odorless and poisonous gas.
3. WARNING: Do not fill the fuel tank whle the engine is in operation.
Gasoline spilled on a hot engine may explode and cause serious injury to
personnel.
4. WARNING: Do not attempt repairs in the insecticide system without
protection until the system has been throughly flushed with a flushing
solution for the insecticide used.
SAFETY SUMMARY
ALL SPRAY SWITCHES MUST BE IN THE "OFF" POSITION
BEFORE THE IGNITION SWITCH IS TURNED ON.
ONLY QUALIFIED PERSONNEL SHOULD OPERATE THE
CLARKE GRIZZLY FOG GENERATOR
IMPORTANT
!
WARNING
!
GRIZZLY® ULV SPRAYER

DESCRIPTION
GRIZZLY® ULV SPRAYER
This manual provides the description, theory of operation, assembling instructions, mounting
instructions, operation instructions, calibration instructions, maintenance instructions and illustrated
parts breakdown for the CLARKE Grizzly Cold Aerosol Fog Generator for Ultra Low Volume
(ULV) application of insecticide.
Description
The CLARKE Grizzly Cold Aerosol Fog Generator consist of an engine with a fuel tank, a rotary
blower capable of developing 10 P.S.I. maximum pressure, an adjustable discharge nozzle head
assembly, a flow control, an insecticide tank, a flush tank, a remote cab control and a filter-silencer
with a stainless steel element.
5

OPERATION
GRIZZLY® ULV SPRAYER
6
Theory of Operations
The CLARKE Grizzly Cold Aerosol Fog Generator is designed for precision metering of
concentrated insecticide through the discharge nozzle head. Any desired flow rate, within limits, can
be easily set on the flow rate scale. When fogging, the concentrated insecticide is drawn from the
insecticide tank and pumped at the preset rate with constant, even flow to the discharge nozzle head
where it is sheared into optimum size droplets by the air blast from the blower and dispersed into the
atmosphere. After dispersal, the droplets stay suspended in the air and drift with prevailing winds to
insect infested areas. The optimum size of a particular insecticide droplet is defined on the
registration label for that insecticide and can be controlled by varying either the nozzle air pressure,
the insecticide flow rate or both. Changing the speed of the engine will vary the nozzle air pressure.
Slowing down the engine decreases the pressure which increases the droplet size because of less
shearing action and conversely, speeding the engine up increases the pressure which decreases the
droplet size for a particular flow rate. The correct flow rate will be defined on the registration label
for that insecticide. As stated above, the flow rate also affects the droplet size. The droplet size tends
to increase as the flow rate increases. Optimum size droplets must be maintained and should be
checked periodically by an authorized person.
Particle Size
The air pressure at the nozzle and the volume of the chemical flow changes particle size. Particle
size is specified on the label of the insecticide for that insecticide. This is a part of the label and a
part of the legal use of that insecticide.
It is the responsibility of the user of the equipment and the insecticide to determine that the particle
size developed by the ULV Cold Aerosol Fog Generator he is using is proper for the chemical that is
being used. That is the law.
Insecticide labels discuss the determination of particle size and the suppliers of the insecticide
should be equipped to measure, or help you measure, the particle size produced by your ULV Cold
Aerosol Fog Generator. The ULV Cold Aerosol Fog Generator should not be operated unless the
required particle size is known and measured.
Clarke Engineering Technologies, Inc. can not tell you what air pressure to use with a particular
insecticide to get the particle size required by the label. There are too many variables involved, such
as chemical mixture, flow rate and the temperature of the insecticide.
Your Clarke representative or distributor can work with you to be sure you are producing the correct
particle size for the insecticide used.
GRIZZLY® ULV SPRAYER

OPERATION
GRIZZLY® ULV SPRAYER
Assembly Instructions
The CLARKE Grizzly Cold Aerosol Fog Generator is shipped completely assembled except that the
Remote Control Box needs to be plugged into the socket located on the fog generator, see Figure
locking cap onto the socket.
Figure 1- Remote Socket Connection
OUT TO PUMP
FLUSH
CHEMICAL
3
2
1
Remote Control
Socket
Rear Coupling
Cover Panel
1, and The other end of the cable plug into the end of the pump box, see Figure 2 (See page 8).
The plugs are polarized and can only be inserted in one position. Be sure to hand tighten the knurled
7

GRIZZLY® ULV SPRAYER
8
OPERATION
Figure 2- Remote Socket Connection on Pump Box
GRIZZLY® ULV SPRAYER

OPERATION
GRIZZLY® ULV SPRAYER
In order to eliminate vibration and excessive cab noise, the CLARKE Grizzly Cold Aerosol Fog
Generator should be bolted to the bed of the vehicle, see Figure 3. Position the fog generator so that
the nozzle is located towards the rear of the vehicle and all switches are easily accessible. Make sure
that the fog generator is located where the insecticide tank can be easily filled. With the fog
generator in the correct location, drill holes through the holes in the Z-base rails and fasten the unit
to the bed with plated bolts. Mount the Remote Control Box in the cab of the vehicle in a
convenient location. Route the cables back to the fog generator in a way that affords protection
against cutting and snagging. Align the plug pins with the holes in the socket on the unit and lock the
plug in place by hand tightening the knurled locking cap onto the socket. Plug the other cable on the
Figure 3- Truck Mounting
Note: Hearing protection must be worn when outside the vehicle in close proximity with the
CLARKE Grizzly Cold Aerosol Fog Generator Cold Aerosol Fog Generator when it is
running.
HEARING
PROTECTION
REQUIRED
CAUTION
socket on the Pump Box and snap into place.
9

OPERATION
GRIZZLY® ULV SPRAYER
10
The Remote Control Box connects to the CLARKE Grizzly Cold Aerosol Fog Generator through
two multi-wire cable. Mount the small enclosure in the cab of the vehicle in a convenient location.
Route the cables back to the CLARKE Grizzly Cold Aerosol Fog Generator in a way that affords
protection against cutting and snagging. Plug the cable in and hand tighten the locking cap onto the
socket.
The SmartFlow contains a number of components for controlling the unit. The purpose of each is as
follows.
1. RED TIME BUTTON: This button displays the time that the ULV spray nozzle is turned on.
2. MAIN POWER Switch: This switch supplies power to start the engine and for the Flow Control
to operate. With this switch in the OFF position, the engine will not start when cranked and the
Flow Control will not operate.
3. SPRAY Select Switch: This switch sets the unit to either the spray inconstant or variable mode.
4. FLUSH Switch: This switch turns the flush on.
5. ENGINE START Toggle: This button cranks the engine.
6. ENGINE CHOKE Toggle: This button chokes a cold engine.
Figure 4- Remote Control Station
TANK HOURS
FLUSHCHOKESTART
RESET
RATE 1 RATE 2 RATE 3
POWER ON
OFF
CON
VAR
SPRAY
OFF
SPEED
AREA
DISTANCE
TARGET RATE
MAX SPEED
MIN SPEED
FLOW PER MINUTE
TOTAL FLOW
TIME
SWATH WIDTH
FLOW CAL
SPEED CAL
SmartFlowSmartFlow
Engineering Technologies, Inc.
Tech Support:
1-800-859-2847
ERROR
CAL PSI bar meters data inches
Rate 123
Gal / 1000
Lbs N / Ac
Gal / Ac
kg / ha
liters / ha
GRIZZLY® ULV SPRAYER

OPERATION
GRIZZLY® ULV SPRAYER
11
Read this complete OPERATION INSTRUCTIONS section before starting the CLARKE Grizzly
Cold Aerosol Fog Generator.
When operating the CLARKE Grizzly Cold Aerosol Fog Generator for the first time, move to an
uncongested and well-ventilated work area in an open area away from flammable materials.
Pre-Start
1. Make sure that all switches are in the OFF position.
2. Verify that the battery cable connections are correct and tight. This is a negative ground system.
3. Verify that no foreign objects or tools have been left in or about the fog generator.
4. Check the oil in the engine. If necessary, add oil until the level reaches the mark on the dipstick.
The engine manual supplied with the fog generator will advise the correct oil to use. Reference
Figure 4.
5. Check the oil and lubrication levels on the blower. See the LUBRICATION section on page 49.
6. Fill the gasoline tank. Reference Figure 5.
Figure 5- Fill engine Oil and Gasoline Tank
ADD FULL
11

OPERATION
GRIZZLY® ULV SPRAYER
12
7. Service the insecticide tank with the appropriate insecticide. Always use a funnel with a strainer
screen when adding insecticide to the tank. Reference Figure 6.
8. Place flushing solution in the flush tank. ReferenceFigure 6.
Figure 6- Filling Insecticide Tank and Flush Tank
9. Verify that the Remote Control Box is within easy reach of the operator.
10. Verify that the nozzle is in the correct position for spraying. The nozzle is adjustable both
horizontally and vertically. To rotate the nozzle, loosen the appropriate knob on the side of the
mast or side of the nozzle head and rotate the nozzle. Retighten the knobs after adjustment.
Reference Figure 7.
Figure 7- Nozzle Position
Adjustment Knob - Nozzle
Adjustment Knob - Mast
GRIZZLY® ULV SPRAYER

OPERATION
GRIZZLY® ULV SPRAYER
Start-Up
1. On the Remote Control Box, turn the Main Power switch to the ON position. Reference Fig-
ure 4.
2. On the Remote Control Box, set the Spray switch to the OFF position. Reference Figure 4.
3. For a cold engine, on the Remote Control Box, toggle the choke switch and starter switch at
the same time, until the engine fires. Reference Figure 4.
4. For a hot engine, on the Remote Control Box, toggle the starter switch until the engine fires.
Reference Figure 4.
5. When the engine fires release both the choke and starter switches.
Note: Pressing the start button on the engine will also start the engine. The Main Power switch on
the Remote Control Box must be in the ON position for the engine to be started.
Note: Using short cranking cycles of several seconds provides the best starter life. Prolonged
cranking can damage the starter motor if cranked more than 15 seconds per minutes.
Hour Meters
The unit is equipped with two separate hour meters. The hour meter mounted on the fog generator
records the engine-blower RPM when the engine is running and the total engine-blower run time for
service/maintenance and security when the engine is not running.
The red time button mounted on the Remote Control Box displays the time the ULV spray nozzle
is turned on.
Pressure Gauge
The unit is equipped with a glycerin filled pressure gauge to read the nozzle air pressure and is
mounted on the fog generator coupling guard between the engine and blower.
13

CONTROL PANEL FUNCTIONS
GRIZZLY® ULV SPRAYER
14
Figure 8- Pressure Gauge Panel
Low Pressure Cut-Off
The CLARKE Grizzly Cold Aerosol Fog Generator is equipped with an air low-pressure cut-off
switch. If, for some reason, the nozzle air pressure drops below 1 P.S.I., the Flow Control will cut
off. This prevents the blower from being filled with insecticide because of insufficient air blast.
Because of this, the engine on the fog generator must be running when setting the flow rate.
The air low-pressure cut-off switch is located inside the coupling guard and is mounted on the rear
of the pressure gauge. If necessary, this switch can be adjusted in the field by removing the rubber
plug from the tip of the switch and then using a 7/32" Allen wrench, turn the adjustment screw in
about 1/2 turn increments. Turning clockwise increases the air pressure cut-off point. Turning
counter-clockwise decreases the air pressure cut-off point. See figure 9
I
N
C
R
E
A
S
E
09
1
2
3
456
7
8
NOZZLE PRESSURE
CONTROL
Figure 9 - Pressure Gauge Panel
GRIZZLY® ULV SPRAYER

SMARTFLOW MANUAL
GRIZZLY® ULV SPRAYER
Smart Flow Control
Installation, Operation and Maintenance Manual
Description
The Smart Flow control provides programmable microcomputer control for Clarke spraying
systems. The Smart Flow control offers the following features:
• The Smart Flow control uses data from speed and flow sensor to vary the speed of the electric
pump on the spraying system. This automatically maintains the target application rate.
• The Smart Flow control can operate alone, or for GPS-controlled Variable Rate Applications
(VRA), it can use an RS232 Serial Link to send data to and receive commands from an external
computer.
• Three different application rates can be preprogrammed into the Smart Flow control, allowing
quick operator selection by the touch of a button.
• The Smart Flow control is available for both gas and electric spraying systems.
• For gas spraying systems, an optional pressure sensor can be installed so the user can monitor
the application pressure.
It is highly recommended that some system be established to assure the
performance of the following maintenance instructions.
IMPORTANT
15