Brinly-Hardy ST-251BH 用户手册

The lawn sprayer requires towing equipment with a 12-volt battery 

and charging system, and a towbar hitch in order to operate prop-

erly.

The towing equipment should have operable brakes capable of 

controlling the loaded sprayer and towing vehicle.

By measuring off a distance of 50 or 100 feet, the speed of the tow-

ing vehicle can be calibrated by selecting a gear and throttle posi-

tion to cover the prescribed distance in the specified time as 

shown:

Chemical labels normally show application rates in gallons per 

acre or gallons per square feet. Using the following method, one 

can determine the appropriate amount of water to use and speed 

to travel to adequately follow the manufactures recommended 

instructions.

1.

Based on the size of your yard, select the amount of water to 

be used. Use the formula:

Application Rate    x   Area to be sprayed = Amount of water 

(from the Table1).

Example 1

Example 2 

Yard Size= 4 acresYard Size= 20,000 sf 

Using the Table 1 and the above formula:

2.

Choose the speed / amount of water you want to use.

Example 1

Example 2

3.

Determine how many tanks are required to complete the total 

job:

Amount of Water /   Tank Capacity   = Number of tanks from 

Step 1.

If the number of tanks is less than 1.0 use 1.0

Example 1

Example 2

4.

Determine how much chemical is to be used:

Example 1

Example 2

Label = 20 ounces/acre 

Label = 1/2 pint/ 1000 sq. ft.

20 oz. x 4 acres = 80 oz.

1/2pt/1000 x 20,000 sf = 10 pints

5.

Determine how much chemical per tank:

Example 1

Example 2

80oz./ 6.0 tanks = 13.3 oz./tank

10 pints/ 1 tank = 10 pints

50 feet

100 Feet

2

17

34

3

11

22

4

9

17

5

7

14