12
Introduction
PARTS MANUALS AVAILABLE ONLINE AT smithco.com
OPERATING INSTRUCTIONS
(CONTINUED)
Before using the Spray Star, the operator or spray technician must familiarize themselves with all of the informa-
tion on chemical spraying contained in Spraying Procedure of this manual.
All testing and calibration of sprayers is to be done with water, not chemicals. This insures the
safety to all involved in performing the calibration operation. Only after all calibration proce-
dures are completed should chemical be added to the sprayer.
OPERATION OF THE 3-SPEED TRANSMISSION
The transmission provides 3 forward speeds and reverse. The operator selects the speed (gear) in which he or
she wishes to operate depending on the ground speed desired. The Spray Star can be started and operated in
any speed. It is not necessary to start in low gear.
GEAR
RATIO
USE
SPEED RANGE
1st
2.60:1
Spraying
0-3 m.p.h. (0-5 kph)
2nd
1.63:1
Spraying
2-6 m.p.h. (3-10 kph)
3rd
1.00:1
Transporting
4-10 m.p.h. (6-16 kph)
Reverse
3.54:1
Reverse
0-3 m.p.h. (0-5 kph)
Select the gear desired by moving the shift lever located at the operator’s right side to the point indicated by the
shift pattern found on the shift knob.
Spraying should be done in the lowest gear possible that will provide the desired ground speed. This will maxi-
mize pump performance and minimize ground speed variance due to uneven terrain.
GROUND SPEED CONTROL
1. Select the gear to be used.
2. Place the Ground Speed Control lever to fast.
3. Start the vehicle and engage the clutch to begin moving.
4. Push the foot accelerator fully to the floor.
5. While the foot accelerator is fully depressed, begin moving the Ground Speed Control lever towards slow
until the correct operating speed is attained.
6. The desired speed will be maintained as long as the foot accelerator is fully depressed.
7. Vehicle will return to the established ground speed whenever the foot accelerator is fully depressed unless
the Ground Speed Control lever has been moved to a different setting.
8. To operate the Spray Star at higher speed for transport, the Ground Speed Control lever should be returned
to the fast position.
HAND THROTTLE CONTROL LEVER
Transmission must be in neutral and park brake set when engine throttle control is used.
To increase the engine speed without holding your foot pedal down, use the engine throttle control lever on the
right hand control panel. Push the lever forward until the desired rpm is attained.
This procedure will set the RPM allowing the operator to use the remote hose and handgun. It will also permit the
operator to check the operation of the spray boom by observing it from the rear of the vehicle.
To release throttle control, pull back on the Lever allowing the engine to return to idle.
Transmission must be in neutral and parking brake set when engine throttle control is in use.
Never drive vehicle with engine speed increased by engine throttle lever. Loss of vehicle
control may result.
TOWING UNIT
While towing the Spray Star 1760 place shift lever in neutral and disengage park brake.
HILLSIDE OPERATION
Do NOT stop or start suddenly on any slope. Be especially cautious when changing direction. Do NOT operate
vehicle on slopes greater than 20°.
