Harvest TEC 442U User manual

#010-0442U
Revised 6/22
OWNER’S MANUAL
Model 442U
25 Gallon Preservative Applicators
Forage Harvester

2
HARVEST TEC 442U MANUAL INDEX
PAGE
REFERENCE CHART
3
TOOLS NEEDED
3
INSTALLATION OF THE APPLICATOR
4 - 8
1. INSTALLATION OF TANK, MOUNTING BRACKETS, GAUGE, &
DRAIN/FILL LINE
4-5
2. PLACEMENT OF SPRAY ASSEMBLY
6
3. INSTALLATION OF PLUMBING
7
A. INTAKE
7
B. OUTLET ROUND BALER
7
4. INSTALLATION OF CONTROLS
8
APPLYING RATE DECAL
8
LOCATION OF CONTROL BOX
8
WIRING
8
OPERATING INSTRUCTIONS
8
MESSAGE LIGHT
8
OPERATION
8-11
CALIBRATION
9-11
DETERMINING TONS PER HOUR
9
DETERMINING RATE OF CHEMICAL
10
SELECTING TIPS AND SETTING PRESSURE
10
CALIBRATION REMINDERS
10
GENERAL CALIBRATION CHARTS
11
ROUTINE MAINTENANCE
12
WINTER STORAGE
12
TROUBLE SHOOTING CHECKS
13
PARTS BREAKDOWN
14-15
MODEL 442U BASE KIT
14
MODEL 442U DRAIN/FILL, CONTROL BOX AND NOZZLE ASSEMBLY
15
NOTES
16
WARRANTY AND LIABILITY
BACK PAGE

3
Congratulations on purchasing a Harvest Tec Model 442U applicator. This applicator is designed to
apply Harvest Tec buffered acid. The model 442U base kit includes the following parts: tank, frame,
pump, gauge, hose, electronic control box, and miscellaneous hardware. For your convenience we
have included a parts break down for the model 442U applicator. If something goes wrong bring this
manual into the dealer so they can order the correct parts for you. Ordering the correct part number
is very important. It will save you time, money, and your crop.
REFERENCE CHART
BALER MODEL
HARVEST TEC MODEL
CASE IH
RB 455A
442U
NEW HOLLAND
Roll-Belt 450
442U
TOOLS NEEDED
For installation of this applicator, the following tools will be required:
-Standard wrench set
-Standard socket set
-Standard screw driver or 5/16” nut driver
-Side cutter
-Hose cutter
-Crescent wrench
-Hammer

4
INSTALLATION OF APPLICATOR
1. INSTALLATION OF TANK, MOUNTING BRACKETS, GAUGE, & DRAIN/FILL LINE
Locate the tank base bracket (001-4442U). This bracket will mount on the front of the baler is show
below. Depending on the year of the baler only two of the required three holes may be premade on
the baler. Mark and drill two 1/2” holes (one per side) if necessary. Take care to check behind the
area before drilling. The bracket will be secured on each side with three 1/2” x 1 – 1/4” hex bolts, six
flat washers, three lock washers, and three hex nuts. Secure the left side of the baler first. Slide the
supplied shims (001-4442US), if necessary, between the tank base bracket and the baler side wall if
necessary. The shims need to be installed to prevent the balers side wall from moving in once the
tank base bracket hardware is tightened. Tighten all hardware.
001-4442U
Front of Baler
A

5
INSTALLATION OF TANK, MOUNTING BRACKETS, GAUGE, & DRAIN/FILL LINE CONT.
Mount the tank on the tank base bracket (001-442U) as shown below and on the previous page. The
position the tank and saddle so that the additional side hole on the tank will be facing the front of the
baler. The tank saddle will have four holes that will line up with point A. Use four 1/2” x 1 – 1/4” hex
bolts, four flat washers, and four lock washers to secure the tank to points A.
The drain/fill line will connect to the tank at point B. Thread 3/4" elbow fitting (#003-EL3434) into end
of tank. Run 3/4" hose from the elbow down the frame to the bottom of the baler. Drill 1/4" holes to
accept the valve holder bracket and use 5/16” x11/4” self-tapping screws. Connect valve assembly to
other end of hose. Place hose clamps on both ends. The drain/fill line needs to be used for all
filling or draining of the tank. Fill or drain from ground level only. Failure to do so can lead to
injury.
Locate gauge assembly. On round balers the gauge can be mounted to front of tank saddle or in any
other location that is easily viewed from the tractors seat.
Valve
bracket
and quick
coupler
A
B

6
2. INSTALLATION OF SPRAY NOZZLE ASSEMBLY
The cross bar on the wind guard above the pick-up head provides a mounting point for the nozzle
pipes. Space the nozzles by the chart below:
PICK-UP HEAD
WIDTH
LEFT SIDE
(Use plugged fitting)
CENTER
(Use 2-way fitting)
RIGHT SIDE
(Use 2-way fitting)
48”
12” from left
Center
12” from right
60”
14” from left
Center
14” from right
72”
15” from left
Center
15” from right
Aim the nozzle pipes up so that the tips spray in a generally horizontal direction. The tips should be pointed
toward the starter rolls of the baler. The tips should be located so they will be somewhere between 14” and
18” form the normal path of hay.

7
3. INSTALLATION OF PLUMBING
A. INTAKE
Screw the 003-EL3412 (3/4” to ½”elbow) into the bottom of the tank. Second screw the
002-2212(½” ball valve) with elbow into the filter assembly. Lastly, route the 002-9001(1/2”
hose) from bottom of the tank to ball valve. Secure with hose clamps.
B. OUTLET ROUND BALER
Run hose from the pump outlet to the gauge. The gauge is assembled with two straight
fittings; an elbow is supplied in the parts bag to be used if necessary. From the gauge the
hose will need to be run to the first nozzle tube with the check valve. On John Deere 8
series and Agco balers the hose from the gauge will go the check valve on the spray shield.
Cut the hose to length and attach the female disconnect and straight fitting. Attach these to
the check valve using one washer.
ROUND BALER
TANK
FILTER BOWL
ASSEMBLY
GAUGE
FEMALE
DISCONNECT
CHECK
VALVE
NOZZLE
TUBE

8
4. INSTALLATION OF CONTROLS
APPLY RATE DECAL
Apply the rate decal that came in the bag with this book and place it just to the right of the speed dial.
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.
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.
Be sure to use a voltmeter to verify that you do have 12 volts running to the box.
NOTE: For tractors with 24v starters, 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.
OPERATING INSTRUCTIONS
The 442U applicator is very simple to operate. After installing the applicator, fill the tank with 5
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
apply the amount of chemical you would like it to put on.
Message Light
The LED under the speed dial will be steady on when the applicator is running under normal
situations. If the light blinks on and off use the below information for the message.
Slow steady on and off blink: The system is attached to hay indicators (474A) or a foot switch.
This message means that the pump is paused. The light will come on constant once the baler is back
in the windrow.
Two quick blinks: The pump motor or pump harness is shorted.
Three quick blinks: Pump motor is over the current limit (10 amps).
Four quick blinks: Power is under current from a bad connection.
The control box must have the on/off switch toggled to clear the message after the fault has been
fixed to clear.

9
CALIBRATION
There are three things that you need to know when calibrating your applicator. First you need to
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
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 below 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 below, cross-reference 2 minutes with 1000lb. and you will come up with 15 ton per hour.
Average
time to
make a
bale
(min.)
Round Baler (Tons per Hour)
Weight per Baler
600
800
1000
1200
1400
1600
1800
2000
2200
0.5
36.0
48.0
60.0
72.0
84.0
96.0
108.0
120.0
132.0
1
18.0
24.0
30.0
36.0
42.0
48.0
54.0
60.0
66.0
1.5
12.0
16.0
20.0
24.0
28.0
32.0
36.0
40.0
44.0
2
9.0
12.0
15.0
18.0
21.0
24.0
27.0
30.0
33.0
2.5
7.2
9.6
12.0
14.4
16.8
19.2
21.6
24.0
26.4
3
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
3.5
5.1
6.9
8.6
10.3
12.0
13.7
15.4
17.1
18.9
4
4.5
6.0
7.5
9.0
10.5
12.0
13.5
15.0
16.5
4.5
4.0
5.3
6.7
8.0
9.3
10.7
12.0
13.3
14.7
5
3.6
4.8
6.0
7.2
8.4
9.6
10.8
12.0
13.2
5.5
3.3
4.4
5.5
6.5
7.6
8.7
9.8
10.9
12.0
6
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
6.5
2.8
3.7
4.6
5.5
6.5
7.4
8.3
9.2
10.2
7
2.6
3.4
4.3
5.1
6.0
6.9
7.7
8.6
9.4
7.5
2.4
3.2
4.0
4.8
5.6
6.4
7.2
8.0
8.8
8
2.3
3.0
3.8
4.5
5.3
6.0
6.8
7.5
8.3
8.5
2.1
2.8
3.5
4.2
4.9
5.6
6.4
7.1
7.8
9
2.0
2.7
3.3
4.0
4.7
5.3
6.0
6.7
7.3
9.5
1.9
2.5
3.2
3.8
4.4
5.1
5.7
6.3
6.9
10
1.8
2.4
3.0
3.6
4.2
4.8
5.4
6.0
6.6

10
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 number of pounds required, for a given hay moisture, refer to the label on the
drum or contact the manufacture. Harvest Tec applicators come with low, medium, and high sets of
tips. If your chemical requires rates other than what these tips deliver you will need to purchase them
through your dealer.
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. (Pg.29-30)
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, on page 12, 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
GENERAL CALIBRATION CHART IN POUNDS PER HOUR
Use the following chart for all applications that require pounds measurements.
POUNDS PER HOUR WITH THREE NOZZLES
INCLUDED IN KIT
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
GENERAL CALIBRATION CHART IN GALLONS PER HOUR
Use the following chart for all applications that require volume measurements.
GALLONS PER HOUR WITH THREE NOZZLES
INCLUDED IN KIT
YELLOW
RED
GREEN
BLUE
BLACK
650067
XR11001
XR110015
XR11002
XR11004
CENTER
650033
650050
6501
6502
6503
OUTSIDE
PSI
15
5.2
7.3
12.9
22.0
31.9
20
5.6
8.4
15.1
24.1
42.2
25
6.3
9.5
16.7
28.3
47.3
30
7.0
10.6
18.6
31.0
52.2
35
7.5
11.3
19.7
33.5
N/A
40
8.0
12.0
21.0
36.0
N/A
45
8.4
12.6
22.3
38.3
N/A
50
8.9
13.2
23.6
40.7
N/A
55
9.3
13.8
24.5
42.5
N/A
60
9.7
14.4
25.6
44.4
N/A

12
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.) If Harvest Tec product is being used, flushing is
not necessary.
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.
7. Clean tank cap breather every 20 hrs or more frequently if required.
8. WARNING: Do not climb on baler for maintenance.
WINTER STORAGE
1. Thoroughly flush the system with water.
2. Remove the filter bowl 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.
7. The drain/fill line needs to be used for all filling and draining of the tank. Fill or drain from ground level
only. Failure to do so can lead to injury.

13
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 at
spray shield 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 on outlet
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. Tighten or clean filter bowl
assembly.
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.
Message light blinks two
times
1. Pump or wire harness
shorted.
1. Check harness running to
pump and verify no shorts or
problems.
2. Check to see if pump motor is
locked up. Repair or replace.
Message light blinks three
times
1. Pump is drawing
greater than 10 amps.
1. Check to see if motor is
running correctly. Repair or
replace.
Message light blinks four
times
1. Undercurrent coming to
control box.
1. Check all battery connections
and connections running up to
control box.

14
MODEL 442U BASE KIT
Ref
Description
Part #
Qty
1
Tank
005-9022
1
2
Tank saddle
001-4442
1
3
Strap
001-4402
2
4
Tank mounting bracket
001-4442U
1
5
Lid
005-9022C
1
Lid gasket
005-9022CG
1
6
Tank fitting
005-9100
2
NP
Shims
001-4442US
4
Ref
Description
Part #
Qty
Ref
Description
Part #
Qty
1
Pump
007-4120S
1
8
Ball valve
002-2212
1
2
Elbow fitting
003-EL3812
1
9
Elbow fitting
003-EL1212
1
3
Street elbow
003-SE38
1
10
Gauge
002-2208Z
1
4
Nipple fitting
003-M1238
1
11
Gauge bracket
001-4717
1
5
Filter bowl assembly
002-4315
1
12
Tee
003-TT14
1
6
Street elbow
003-SE12
1
13
Straight fitting
003-A1412
2
7
Nipple fitting
003-M1212
1
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6

15
MODEL 442 DRAIN/FILL KIT, CONTROL BOX, &
NOZZLE ASSEMBLY
Ref
Description
Part #
Qty
Ref
Description
Part #
Qty
1
Jiffy clip-large
008-9009
3
8
Male shut-off
002-2205G
1
2
Jiffy clip-small
008-9010
3
9
Female coupler
002-2204A
1
3
Ball valve
002-2200
1
10
Straight fitting
003-A3434
1
4
Valve bracket
001-6702H
1
11
Elbow fitting
003-EL3434
1
5
Hose clamp
003-9003
5
12
Control box**
030-0457
1
6
Hose clamp
003-9004
2
Ref
Description
Part#
Qty
Description
Part#
Qty
1
Plug
003-F14
1
Tip Kit (Complete)
030-9002
1
2
Straight fitting
003-A1412
5
Tip Kit Includes:
3
Tee
003-TT14
3
Plastic Box
008-9000
1
4
Check valve
004-1207V
1
Red Cap
004-1207B
3
5
Female coupler
004-1207G
3
Outside Tip (Red Set)
004-650050-SS
2
6
U bolt
001-4714UBS
3
Inside Tip (Red Set)
004-XR11001VS
1
7
Hose clamp
003-9003
5
Green Cap
004-1207A
3
8
Female disconnect
004-1207H
1
Outside Tip (Green Set)
004-6501-SS
2
9
Washer
004-1207W
1
Inside Tip (Green Set)
004-XR110015VS
1
10
Nozzle tube
001-4714
3
Blue Cap
004-1207C
3
Outside Tip (Blue Set)
004-6502-SS
2
Inside Tip (Blue Set)
004-XR11002VS
1
Washer
004-1207W
9
Tip Strainer
004-1203-100
3
12
1
2
3
4
6
7
8
9
10
5
1
2
3
4
5
6
8
9
10
11

16
NOTES:

17
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

18
HARVEST TEC, LLC.
P.O. BOX 63
2821 HARVEY STREET
HUDSON, WI 54016
PHONE: [phone]
1-800-635-7468
FAX: [phone]
Email: [e-mail]