Harvest TEC 458 User manual

#010-0458
REVISED 6/22
OWNER’S MANUAL
Model 458
5 Gallon Preservative Applicator
Forage Harvester

2
HARVEST TEC 458 TABLE OF CONTENTS
PAGE
Installation of Applicator’s Main Frame on Baler
3 –4
Location of the Spray Tips on the Baler
4 - 6
Completion of the Plumbing
6
Location of the Controls and Wiring to the Implement
6
Box Adjustment
7
Operation
8
Calibration
8
Determining Ton Per Hour
8 –9
Determining the Rate of Chemical
9
Selecting Tip and Setting Pressure for Round Balers
10
Selecting Tips and Setting Pressure for Conventional Square Balers
11
General Calibration Charts
12 –13
Electronic Control Box Wiring Diagram
14
Routine Maintenance
15
Winter Storage
15
Trouble Shooting Checks
15
Parts List
16 –17
Warranty and Liability Agreement
18

3
Introduction
Thank you for purchasing a Harvest Tec 458 electronic applicator designed specifically for the
application of hay preservative on conventional balers as well as round balers. By following these
installation and operating instructions, the effectiveness of the hay preservative and the applicators
life will be maximized. For applications of products other then hay preservative or the use of this
applicator on implements other than hay balers, contact you dealer for further recommendations.
Step 1. Installation of Applicator’s Main Frame on the Baler
Conventional Square Balers
The preferred location is on the top shield toward the baler’s right hand side. Position the frame so
that the four base mounting bolts can be reached from the under side of the top shield once they
have been drilled. Locate the frame so that the product jug can easily be placed in the frame. On
electronic units the pressure gauge may have to be rotated to be visible from the tractors seat. After
making sure that the mounting holes are clear of moving parts, electrical and hydraulic lines, mark
and drill the 3/8” holes. Use the supplied 5/16” bolts washers, locks and nuts to bolt the unit down.
Round Balers with Platforms
Some round balers have a platform that will allow you to mount the applicator just like the
conventional balers. If there is, use the Conventional Square Balers Mounting instructions.

4
Round Balers without Platforms
If your round baler does not have a flat platform big enough for the applicators frame you will need to
use the two triangle mounts. First locate a strong structural frame piece of the baler. This maybe the
tongue of the baler or a support piece that runs up the front of the baler. Attach the triangle brackets
to the machine so they are next to each other. After making sure that the mounting holes are clear of
moving parts, electrical and hydraulic lines, mark and drill the four 3/8” holes. (Hardware not
included). This will make a shelf that the applicator can sit on. Place the applicators main frame on
the brackets and transfer the holes to the bottom of the main frame. Drill the holes in the main frame
with a 3/8” drill. Attach the main frame to the triangle brackets with the included 5/16” bolts, washers,
locks and nuts. On electronic units the pressure gauge may have to be rotated to be visible from the
tractors seat.
Step 2. Location of the Spray Tips on the Baler
Nozzle holders are provided for each required spray tip: Locate the tips and adjust the direction of
spray by bending the nozzle holders. Adjustable wrenches work well for this. Use the following
guidelines for locating tips. (Note: 458’s are shipped as a two nozzle set up. If your baler requires
more you will need to order additional parts)

5
Conventional Square Balers
Mount the left hand nozzle. Located the nozzle so that it is approximately 80% across the width of
the pick-up head. Example: If the head is 60” wide, locate the nozzle 48” from the right side of the
head (60” x 80% = 48”)
Bend the nozzle bar in so that the tip is pointed in toward the bottom of the gathering chamber and is
about 16” above the sheet metal base of the chamber. Twist the nozzle so that the tip is tilted 45
degrees from horizontal.
Mount the right hand nozzle. Locate the nozzle so that it is approximately centered on the pick-up
head. Again, Bend the nozzle bar in so that the tip is pointed toward the bottom of the gathering
chamber and the tip will be about 16” above the sheet metal base of the chamber. Twist the nozzle
so that the tip is tilted 45 degrees from the horizontal.
Round Balers
On most Large Round balers the cross bar on the hay compressor above the pick-up head provides a
mounting point by wrapping the nozzle holders around the bar. Space the nozzles by the following
chart.
Pick-Up Head Width Left Side Middle Right
48” 12” from left Center 12” from right
60” 15” from left Center 15” from right
72” 15” from left Center 15” from right.

6
Bend the nozzle bars up so that the tip sprays in the generally horizontal direction and is pointed
toward the intake rolls of the baler at the end of the pick-up head. The tips should be located so that
they will be somewhere between 14” and 18” from the normal path of hay.
Step 3. Completion of the Plumbing.
Attach the ¼” tubing between each nozzle strap and then run it to the discharge of the gauge. The
hose connections are made by loosening the fitting nuts, sliding the hose into the fitting until it
reaches the stop, and then tightening the nut. TIGHTEN NUTS BY HAND ONLY! After making a
connection, test it by pulling firmly on the hose. If it releases, Cut a short section of the hose off and
try again. Secure the line with the wraps and jiffy clips provided. Make sure tubing is clear from
moving parts so it will not get caught in passing hay, or hydraulic lines that could melt the tubing.
Step 4. Location of the Controls and Wiring to the Implement.
A. Location of Control Box
Locate the control where it can be easily reached from the tractor’s seat. Adjustments for
baling speed and windrow conditions can be made as the baler is operated.
B. Wiring
Route the wire to the starter solenoid on all 12v tractors. Connect the green lead marked+
to the hot terminal on the starter. Connect the black lead to a good ground. DO NOT
REVERSE THE LEADS. CONNECTION OF THE GROUND-LEAD TO A HOT
TERMINAL ON THE TRACTOR WILL TRIP THE CIRCUIT BREAKER. Be sure to use a
voltmeter to verify that you do have 12 volts running to the box.
NOTE: For tractors with 24v starters (most John Deere 3020 and 4020 diesels,) connect
the power leads to the tractor’s right hand battery. Do not connect the leads to the starter.
Connect the lead marked + to the positive battery terminal and the lead marked- to the
negative on the battery. Wiring connections to the battery normally results in corrosion;
terminal coating is recommended.
CAUTION: Do not run a pump or use an electronic control box directly off a battery charger. For
stationary use, the applicator can be connected to a new battery and the battery connected to a
charger.

7
C. BOX ADJUSTMENT
Electronic units control application rate by regulating pump speed. The control box is
factory set, but from time to time may require readjustment. First TURN OFF POWER.
Second, remove the control box cover. Lastly, turn the power back on and make the
following adjustments:
1. MAXIMUM OUTPUT: Can be adjusted with the right-hand adjusting dial. Clockwise
adjustment will increase output. With speed dial turned up do not exceed 90 PSI during
operation.
2. MINIMUM OUTPUT: Set with red tips in and control all the way down. Adjust with the left
hand adjusting dial. Counter-clock wise adjustment will decrease output. Set to 10 PSI at
low end.
Make adjustments with a small screwdriver. The settings are sensitive and only a small
amount of adjustment turn is required.

8
Step 5. Operation
The 458 applicator is very simple to operate. After installing the applicator, fill a jug with 2 gallons of
water. With control box connected to the applicator and the power cord hooked to the 12-volt battery
we can start the test. First flip on the toggle switch. You might hear the buzzing of the motor. Turn
the dial on the control box until the gauge starts to climb. By turning the dial clockwise the pressure
will go up. By turning the dial counter clockwise the pressure will decrease. With the applicator
spraying at about 30 PSI, look for leaks at all the hose connections and fittings. Using water in this
step instead of chemical will save you from wasting chemical and making a mess if leaks are found.
When you are comfortable with the operation of the controls you can set the applicator to the amount
of chemical you would like it to put on.
Step 6. Calibration
There are three things that you need to know when calibrating your applicator. First you need know
how many tons per hour you bale. Second you need to know the rate, or how many pounds of
product to apply for a given ton per hour. Finally you need to know what tips to use and at what
pressure to set the gauge.
DETERMINING TONS PER HOUR
Conventional Small Square
1. Bale for three minutes.
2. Count the number of bales made in those three minutes.
3. Weigh several bales to determine the average weight.
4. Use the bale rate chart on the following page to determine the tons you are baling per hour.
Example: You baled 11 bales in three minutes. After weighing some of the bales you found the
average bale weight to be 55 lbs. Using the following chart cross reference 11 bales and 55lbs and
you will find the rate to be 6.0

9
Round Balers
1. Time 3 bales and average the time it takes to make a bale.
2. Estimate the weight of the bale.
3. Use the bale rate chart on the next page to determine the tons you are baling per hour.
Example: You made 3 round bales and it took you an average of 2 minutes a piece to bale each of
them. Your baler’s operator manual tells you that an average bale made by your machine weighs
1000lb. (Remember if the hay is dry it will weigh less and if the hay is wet it will weigh more.) Using
the chart on the following page, cross-reference 2 minutes with 1000lb. and you will come up with 14
ton per hour.
DETERMINING THE RATE OF CHEMICAL
The number of pounds of chemical required to be applied to a given ton of hay, depends on the
moisture and the type of chemical used. The moisture of the hay is important in determining how
much chemical to use. The wetter the hay the more product is needed, the dryer the hay the less
product is needed. By knowing the moisture, you can make sure you are treating the hay correctly.
Under applying will save money but spoilage most likely occurs. Over applying will waste money
however, the hay will be saved. Some chemicals require more or less to treat the same amount of
hay. To find the exact amount required, for a given hay moisture, refer to the label on the drum or
contact the manufacture. Harvest Tec applicators come with three sets of tips. If your chemical
requires rates other than what these tips deliver you will need to purchase them through your dealer.

10
SELECTING TIPS AND SETTING PRESSURE FOR ROUND BALERS
Once you have determined your tons per hour and the amount of chemical needed for the moisture
you are applying at, you can select your tips and determine your gauge settings.
1. Multiply the tons per hour by the amount of chemical required for the moisture you are
applying at. This sum will give you the application rate.
2. Select the proper set of tips from the application rate chart and install them.
3. For the tips you have selected, you will need to keep the gauge at the recommended PSI to
achieve the proper application rate.
4. Set the pressure by adjusting the dial on the control box and by reading the pressure of the
gauge to match the desired rates. The numbers on the dial are for reference only. Rate is
determined by watching the pressure gauge.
Example: You are baling at 22 tons per hour with your round baler. The moisture that you are baling
at requires you to apply 8 pounds per ton. Multiply the 22 tons x 8lbs. = 176lbs. per hour. Using the
chart, lbs/hr with three nozzles, you will notice the green set of tips at 35 PSI will give you that output.
CALIBRATION REMINDERS
*Watch the pressure gauge, as the setting will vary with tractor’s electrical output, temperature
and other factors.
*Check your application rate by measuring product used against actual tons baled.
REMEMBER, ONLY YOU CAN CONTROL HOW MUCH PRODUCT IS APPLIED AND THAT WILL
DETERMINE IF YOUR HAY WILL KEEP!!!

11
SELECTING TIPS AND SETTING PRESSURE FOR CONVENTIONAL SQUARE
Once you have determined your tons per hour and the amount of chemical needed for the moisture
you are applying at, you can select nozzles and determine your gauge settings.
1. Multiply the tons per hour by the amount of chemical required for the moisture you are
applying at. This sum will give you the application rate.
2. Select the proper set of tips from the application rate chart.
3. Connect the hose manifold’s check valve to the coupler of the bank of nozzles that where
selected. Place the caps on the remaining two couplers.
4. For the tips you have selected, you will need to keep the gauge at the recommended PSI to
achieve the proper application rate.
5. Set the pressure by adjusting the dial on the control box and by reading the pressure of the
gauge to match the desired rates. The numbers on the dial are for reference only. Rate is
determined by watching the pressure gauge.
Example: You are baling at 12.5 tons per hour with your conventional square baler. The moisture
that you are baling at requires you to apply 8 pounds per ton. Multiply the 12.5 tons x 8lbs. = 100lbs.
per hour. Using the chart, lbs/hr with two nozzles, on page 20, you will notice the medium or pink set
of tips at 35 PSI will give you that output.
CALIBRATION REMINDERS
*Watch the pressure gauge, as the setting will vary with tractor’s electrical output, temperature
and other factors.
*Check your application rate by measuring product used against actual tons baled.
REMEMBER, ONLY YOU CAN CONTROL HOW MUCH PRODUCT IS APPLIED AND THAT WILL
DETERMINE IF YOUR HAY WILL KEEP!!!

12
GENERAL CALIBRATION CHARTS
POUNDS PER HOUR WITH TWO NOZZLES
INCLUDED IN KIT
LOW
MEDIUM
HIGH
YELLOW
RED
GREEN
BLUE
BLACK
650033-SS
650050-SS
6501-SS
6502-SS
6503-SS
PSI
15
21
32
64
128
192
20
25
38
76
152
228
25
28
42
84
168
252
30
30
46
92
184
276
35
33
50
100
200
300
40
35
53
106
212
318
45
37
56
112
224
336
50
38
58
116
232
348
55
40
61
122
244
366
60
42
64
128
256
384
POUNDS PER HOUR WITH THREE NOZZLES
YELLOW
RED
GREEN
BLUE
BLACK
650067
XR11001
XR110015
XR11002
XR11004
CENTER
650033
650050
6501
6502
6503
OUTSIDE
PSI
15
53
64
112
192
320
20
63
76
133
228
380
25
70
84
147
252
420
30
77
92
161
276
460
35
84
100
175
300
N/A
40
89
106
186
318
N/A
45
94
112
196
336
N/A
50
97
116
203
348
N/A
55
102
122
214
366
N/A
60
107
128
224
384
N/A

13
LITRES PER HOUR WITH TWO NOZZLES
RED
GREEN
BLUE
650050
6501
6502
PSI
15
13.6
27.3
54.5
20
15.9
32.6
65.1
25
17.4
35.6
71.2
30
19.7
39.4
78.7
35
21.2
42.4
84.8
40
22.7
45.4
90.8
45
23.5
48.4
96.9
50
25
50.7
101.4
55
26.5
53
106
60
27.3
56
112
ML PER MINUTE WITH TWO NOZZLES
RED
GREEN
BLUE
650050
6501
6502
PSI
15
230
460
910
20
270
540
1090
25
290
590
1190
30
330
660
1310
35
350
710
1410
40
380
760
1510
45
390
810
1620
50
420
850
1690
55
440
880
1770
60
460
930
1870

14
ELECTRONIC CONTROL BOX WIRING DIAGRAM
Relay wiring order:
1: Blue
2: Black
3: Orange
4: Green
5: Not Used
Hay Indicator wiring order:
1: Brown
2: Blue
3: Black
4: White (not used)
Hay indicator

15
ROUTINE MAINTENANCE
1. Clean the tip strainers and main strainer every 10 hours of operation or more frequently if
required.
2. Depending on the product being used, the system may need to be flushed with water at a
regular interval (consult with manufacturer of the chemical.)
3. Although the pump can run dry, extended operation of a dry pump will increase wear. Watch
the preservative level in the tank.
4. Cover the electronic cab control box on open station tractors if left outside.
5. Pump performance may start to decline after 400 hours of use. Rebuilding the pump is a
simple procedure if the motor is not damaged. Order pump rebuilding kit #007-4581.
6. If you are using bacterial inoculants, flush out system daily after each use.
WINTER STORAGE
1. Thoroughly flush the system with water.
2. Remove the intake line and run dry until the water has cleared out of the intake side.
3. Remove the red plug from the bottom of the pump, drain, and run the pump for 30 seconds or
until it is dry.
4. Drain all lines on the outlet side.
5. Never use oils or alcohol based anti-freeze in the system.
6. For spring start-up, or anytime the pump is frozen, turn off the power immediately to avoid
burning the motor out. The pump head can be disassembled and freed or rebuilt in most
cases.
TROUBLE SHOOTING CHECKS
PROBLEM
POSSIBLE CAUSE
SOLUTION
Pump will not run.
1. Circuit breaker tripped on
electronic unit.
1. Check for short, low voltage, and
reset breaker.
2. Pump locked up.
2. Clean or rebuild pump if motor is OK.
3. Damaged wire.
3. Repair damaged wire.
4. Vapor locked.
4. Loosen hose by check valve by
nozzles or manifold and bleed air.
Pump runs but will not prime.
1. Air leak in intake.
1. Tighten fittings on intake side.
2. Clogged intake.
2. Clean.
3. Restricted outlet.
3. Check and clean tips.
4. Check valve stuck closed.
4. Clean or repair check valve.
5. Dirt inside pump.
5. Replace pump check valve.
Pump does not develop enough
output.
1. Air leaks or clogs on inlet
side.
1. Check intake check valve.
2. Electronic box out of
adjustment.
2. Refer to box adjustment page.
3. Pump worn or dirty.
3. Rebuild pump.
4. Low supply voltage.
(Pump requires 12v minimum)
4. Check voltage at connection with
voltmeter.
5. Bad gauge.
5. Gauge should read less than 10 PSI
when not in use. Also tips should lose
spray pattern below 10 PSI. Check
accuracy.
Pump output varies.
1. Clogged or restricted inlet.
1. Clean
2. Worn pump parts.
2. Rebuild pump.

16
MODEL 458 PARTS LIST
Ref
Description
Part#
Qty
1
Base
001-4501A
1
2
Bottle Holders
001-4501B
2
3
Pump Holders
001-4501C
1
4
Pump
007-4120S
1
5
Gauge
002-2208Z
1
6
Pump Wire Harness
006-4574
1
7
Intake Screen
002-4565
1
8
Intake Check Valve
002-4564
1
9
Flex Spout Manifold (M
003-4508A
1
10
Flex Spout Manifold (F)
003-4508B
1
11
Jug Cap
003-4508C
1
12
Electronic Control box
030-0457
1
13
¼” FPT Tee
003-TT14
1
14
Jaco Elbow 3/8 x 1/4
003-JEL3814
2
15
Jaco Elbow ¼ x ¼
003-JEL1414
2
16
¼” Tubing (Hose)
002-9006
5 ft
NP
Suction Cup Mount
001-2012SCM
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

17
MODEL 458 PARTS LIST
Ref
Description
Part#
Qty
Ref
Description
Part#
Qty
1
Left Holder
001-4501D
1
15
Tip Kit (Complete)
030-9001
1
2
Right Holder
001-4501E
1
Includes Following
3
Nozzle Strap
001-4215
2
Plastic Box
008-9000
1
4
Nozzle Holders
004-4710
2
Red Cap
004-1207B
2
5
¼” Tubing (Hose)
002-9006
15
Low Output Tip
004-650050-SS
2
6
Jaco Straight ¼” x ¼”
003-JA1414
3
Green Cap
004-1207A
2
7
¼” Plug
003-F14
1
Medium Output Tip
004-6501-SS
2
8
HB to NPT ¼” Tee
003-T1414T
1
Blue Cap
004-1207C
2
9
Valve
002-2216
1
High Output Tip
004-6502-SS
2
10
¼” Straight Fitting
003-A1414
1
Washer
004-1207W
2
11
Jiffy Clips
008-9012
3
Tip Strainer
004-1203-100
2
12
Mini Hose Clamps
003-9002
4
13
¼” FPT Tee
003-TT14
2
14
Tie Down Strap
2
1
2
3
4
5
6
7
13
8
9
10
11
12
14
15

18
Harvest Tec, LLC. Warranty and Liability Agreement.
Harvest Tec, LLC. will repair or replace components that are found to be defective within 12 months
from the date of manufacture. Under no circumstances does this warranty cover any components
which in the opinion of Harvest Tec, LLC. have been subjected to negligent use, misuse, alteration,
accident, or if repairs have been made with parts other than those manufactured and obtainable from
Harvest Tec, LLC.
Our obligation under this warranty is limited to repairing or replacing free of charge to the original
purchaser any part that in our judgment shows evidence of defective or improper workmanship,
provided the part is returned to Harvest Tec, LLC. within 30 days of the failure. Parts must be
returned through the selling dealer and distributor, transportation charges prepaid.
This warranty shall not be interpreted to render Harvest Tec, LLC. liable for injury or damages of any
kind, direct, consequential, or contingent, to persons or property. Furthermore, this warranty does not
extend to loss of crop, losses caused by delays or any expense prospective profits or for any other
reason. Harvest Tec, LLC. shall not be liable for any recovery greater in amount than the cost or
repair of defects in workmanship.
There are no warranties, either expressed or implied, of merchantability or fitness for particular
purpose intended or fitness for any other reason.
This warranty cannot guarantee that existing conditions beyond the control of Harvest Tec, LLC. will
not affect our ability to obtain materials or manufacture necessary replacement parts.
Harvest Tec, LLC. reserves the right to make design changes, improve design, or change
specifications, at any time without any contingent obligation to purchasers of machines and parts
previously sold.
Revised 6/22

19
HARVEST TEC, LLC.
P.O. BOX 63
2821 HARVEY STREET
HUDSON, WI 54016
PHONE: [phone]
1-800-635-7468
FAX: [phone]
Email: [e-mail]