Harvest TEC 442C User manual

442C-14-OPR
5/22
Operation Manual
Model 442C
55 Gallon Preservative Applicator
Forage Harvester

2
(intentionally blank)

3
Harvest Tec 442C Operations Table of Contents
Page
Introduction
4
Safety
4-5
Safety Decals and Descriptions
5
Preparing the Applicator for Operation
6
Filling the Tank
6
Model 442C
6
Operation of the Main Ball Valve
7
Connecting the Power Harness
7
Operation of the 457 Control Box
8
Understanding and Using the 457 Control Box
8
Message Light
8
First Time and Annual Start Up
9
Field Operation
9-13
Calibration
9
Determining Tons per Hour for Round Balers
9
Determining the Rate of Chemical
10
Selecting Tips and Setting Pressure for Round Balers
10
Calibration Reminders
10
General Calibration Chart for Two Nozzles
11
General Calibration Chart for Three Nozzles
12
Maintenance
13-15
Maintenance Schedule
13
Filter Bowl Cleaning
13
Tip & Tip Screen Cleaning
14
Tank Lid Cleaning
14
Dielectric Grease Connections
14
Rebuilding Pump
14
Battery Connection
14
Miscellaneous Maintenance
15
Winter Storage
15
Wiring Diagram
Troubleshooting
16
Parts Breakdown
17-19
Model 442C Base Kit
17
Model 457 Control Box
18
Drain Fill Kit (442C)
18
Model Specific Installation Kit (442C)
19
Notes
20
Warranty Statement
21

4
Introduction
Thank you for purchasing a Harvest Tec Model 442C Hay Preservative Applicator. This applicator is designed
to apply a buffered propionic acid on to the forage crop as it is being baled. The applicator is designed to allow
the operator to adjust the rate of preservative on the go for changing moisture and baler throughput. This
manual will take you through the steps of operation of the applicator and also point out all safety precautions
that need to be made while using the applicator. Please read this manual carefully to learn the recommended
operation of the equipment. Failure to do this can result in personal injury or equipment malfunction. If you are
unsure about operating the system after consulting this manual, contact your local authorized dealership for
additional assistance. If you are in need of parts for the system please see the parts breakdown in the back of
this manual and contact your local authorized dealer to order the parts. This applicator is designed to apply
Harvest Tec buffered propionic acid.
Right and Left sides are determined by facing in the direction of forward travel.
Safety
Carefully read all the safety signs in this manual and on the applicator before use. Keep signs clean and in
good working order. Replace missing or damaged safety signs. Replacement signs are available from your
local authorized dealer. See your installation manual for under the replacement parts section for the correct
part numbers.
Keep your applicator in proper working condition. Unauthorized modifications to the applicator may impair the
function and/or safety of the machine.
Carefully read and understand all of the baler safety signs before installing or servicing the baler. Always use
the supplied safety equipment on the baler to service the applicator.

5
Safety Decals and Descriptions
Number 1
Spraying hazard. Disconnect power before servicing the
applicator
Part no. DCL-8003
Number 2
Use caution when working around chemicals. Wear all
protective equipment according to the label of the product.
Part no. DCL-8001
Number 3
Read and understand the operator’s manual before using or
working around the equipment.
Part no. DCL-8000
Number 4
Open (unlocked) and closed (locked) position of the ball valve.
Part no. DCL-8004

6
Preparing the Applicator for Operation
After the applicator has been installed on the baler, follow the below steps to prepare for operating the
applicator both safely and correctly.
Filling the Tank:
Read the label of the preservative product selected to determine individual protective measures that should be
followed. Locate the drain/fill line on the baler. Open the cam-couplers (A) and remove the protective plug (B).
Insert the male coupler (found on transfer pump) into the female cam and close the cams (A). To open the ball
valve (C) turn the handle so it is vertical. After the ball valve has been turned on switch the pump to the On
position. Monitor the level on the tank visually and shut off the pump before over filling. Once the pump is
turned off, close the ball valve and remove the male coupler. The handle of the ball valve (C) will be horizontal
when closed. Reinstall the protective plug and close the cams. The Harvest Tec model 9212 transfer pump is
recommended for this process.
Water is recommended for first time and annual start up procedures.
Below is an enlarged view of the drain / fill line valve and cam-coupler assembly:
Operation of the Main Ball Valve
The ball valve should be closed at all times when the applicator is not being used. The valve should also be
closed when any service work is being done to the baler or applicator.
The valve is located next to the pump and by the applicator tank. The arrow below points at the valve.
Valve open
Valve closed
C
A
B

7
Connecting the Power Harness
The power harness that supplies power from the tractor battery to the applicator pump has a disconnect at the
hitch. Connect the two together for operation. Always disconnect before servicing the applicator or baler.
Operation of the 457 Control Box
Understanding and Using the 457 Control Box
The model 457 control box is pictured below. The toggle switch (A) is used to supply and cut off power to the
pump. With the toggle switch down as shown in the picture below the power is OFF. Lift the switch up to supply
power turning the system ON. The dial (B) is used to adjust the pressure to the tips when power is applied. The
numbers on the dial should be used only as a reference. The PSI on the gauge determines the actual flow.
Apply the rate decal that comes with your manual to the front of the control box. The message light (C) will
always be illuminated when the power is on. If the light blinks during operation please reference the following
manual section “Message light.”
Message Light
The LED under the speed dial will be constantly on/illuminated when the applicator is running under normal
conditions. If the light blinks on and off, use the information noted below to decipher 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 and
cleared.
C
A
B

8
First Time and Annual Start Up
After becoming familiar with the model 457 control box, fill the tank with 5 gallons of water. Turn the power to
the pump ON by pushing the toggle switch up. By turning the dial clockwise the pressure will go up. By turning
the dial counter clockwise the pressure will decrease. Slowly turn the dial on the control box until the pressure
gauge starts to climb. With the applicator spraying at about 30 PSI, look for leaks at all the hose connections
and fittings. 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.
Field Operation
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
tons per hour. Finally you need to know what tips to use and at what pressure to set the gauge.
Determining tons per hour for 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 apiece to bale each of them.
Your baler’s operator manual tells you that an average bale made by your machine weighs 1000lbs.
(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 1000lbs. 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

9
Determining the Rate of Chemical
Determining the pounds of preservative required and desired for application per 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 needed, the dryer the hay the less product needed. By
knowing the moisture, you can make sure you are treating the hay correctly. Under applying will save money
but spoilage is more likely to occur. Over applying increases the cost but insures more of the hay will be saved.
Some chemicals require more or less to treat the same amount of hay. To find the prescribed number of
pounds recommended for a given hay moisture, refer to the label on the drum or contact the manufacturer.
Harvest Tec applicators come with low, medium, and high sets of tips. If your chemical recommendations and
required rates are other than what these tips deliver you can purchase larger tips sizes through your local
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 (next page) 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 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 two
nozzles, found on the next page of manual, you will notice the green set of tips at 47 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.
*ONLY THE OPERATOR CAN CONTROL HOW MUCH PRODUCT IS APPLIED*

10
General Calibration Chart for Two Nozzles
Pounds Per Hour With Two Nozzles
Gallons Per Hour With Two Nozzles
PIINK
BROWN
RED
YELLOW
SET
SET
SET
SET
T8001-PT
T80015-PT
T8003-PT
T8005-PT
PSI
15
7.3
11.1
22.3
36.7
20
8.4
12.6
25.2
42.7
25
9.1
13.9
28.3
46.9
30
10.2
15.7
31.3
52.4
35
11.1
16.8
33.6
40
12.0
18.1
36.0
45
12.6
19.3
38.2
50
13.3
20.5
40.2
55
13.9
21.4
42.0
60
14.4
22.3
43.9
*ONLY THE OPERATOR CAN CONTROL HOW MUCH PRODUCT IS APPLIED*
PIINK
BROWN
RED
YELLOW
SET
SET
SET
SET
T8001-PT
T80015-PT
T8003-PT
T8005-PT
PSI
15
64
98
196
323
20
74
111
222
376
25
80
122
249
413
30
90
138
275
461
35
98
148
296
40
106
159
317
45
111
170
336
50
117
180
354
55
122
188
370
60
127
196
386

11
Maintenance
•If you are unsure how to perform any of the maintenance steps have your local authorized dealer
perform the tasks.
Maintenance Schedule
Daily
10 hrs
400 hrs
Weekly
Monthly
Season
Filter bowl cleaning
X
X
Tips & tip screen cleaning
X
X
Tank lid cleaning
X
X
Dielectric grease connections
X
X
Rebuild pump
X
Battery connections
X
X
Visually inspect hoses
X
X
Filter Bowl Cleaning
Before cleaning the filter bowl all personal protective equipment must be worn: Face shield or goggles,
chemically resistant apron, boots, and gloves.
Verify that the ball valve located next to the pump is turned off. Locate the filter bowl on the side of the pump
manifold (A). Unscrew the bottom section of the filter bowl and remove the strainer (B) and gasket (C). Clean
off any debris and soak in warm water with a mild soap if necessary. Once the screen is clean reinstall by
following the directions in reverse.
A
B
C

12
Tips and Tip Screen Cleaning:
Before cleaning the tips and screens all personal protective equipment must be worn (Face shield or goggles,
chemically resistant apron, boots, and gloves).
Verify that the ball valve located next to the pump is turned off. Disconnect spray shield from hangers if
possible or remove tips in place. Remove the tip, and screen. Some models may require a wrench to remove.
Clean off any debris and soak tip and screen in warm water with a mild soap if necessary. Once the tips and
screens are cleaned reinstall by following the directions in reverse.
Tank Lid Cleaning
Before cleaning the tank lid all personal protective equipment must be worn (Face shield or goggles,
chemically resistant apron, boots, and gloves).
The tank lid is located on the top of the tank. Use the supplied handle on the tank to secure your person and
use the other hand to remove any debris from the top of the tank. Unscrew the tank lid and bring down ground
level. Use compressed air clean out the tank screen (D). If the screen cannot be thoroughly cleaned with
compressed air, replace fitting (005-9022B5). Once the screen is cleaned reinstall the cover.
Dielectric Grease Connections
Disconnect all harnesses on the applicator, clean the connections, and repack with dielectric grease.
Rebuild Pump
If the pump is not working up to specifications a pump rebuild kit may fix the problems.
Verify that the ball valve is turned off. Before working around the pump all personal protective equipment must
be worn (Face shield or goggles, chemically resistant apron, boots, and gloves). Disconnect all pump fittings
and remove pump from saddle. Follow rebuild instructions supplied with pump rebuild kit. Reinstall after rebuild
is complete.
Battery Connections
Follow the batteries safety warnings and clean the battery connections. If the connections cannot be cleaned,
replace harness.
D

13
Miscellaneous Maintenance
1. 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.
2. Although the pump can run dry, extended operation of a dry pump will increase wear. Watch the
preservative level in the tank.
3. If you are using bacterial inoculants, flush your system daily after every use.
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 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, if the pump is frozen, turn off the power immediately to avoid burning the motor out
or blowing a fuse. The pump head can be disassembled and freed or rebuilt in most cases. Check the
fuses after the pump has been freed.
7. Disconnect power from the Precision Information Processor.
8. Remove display from tractor and store in a warm, dry place.
Plumbing Diagram
Filter bowl assembly
Gauge
Nozzle
tubes/hoses
spray
assemblies
Tank

14
Troubleshooting
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.
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.
6. Vapor locked.
6. Loosen hose by check valve at gauge
and bleed air.
Pump does not develop enough
output during operation
1. Air leaks or clogs on inlet
side of pump.
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.

15
Parts Breakdown for the Tank and Saddle
Harvest Tec Model 442C Base Kit
Ref #
Description
Part #
Qty
Ref #
Description
Part #
Qty
1
Tank lid
005-9022H
1
7
Anchor Bracket
001-4703XA
2
2
55 Gallon tank
005-9203SQ
1
8
Left Leg Rollbelt
001-4703XL
1
3
Tank strap
001-4402
2
9
Right Leg Rollbelt
001-4703XR
1
4
Hand Rail
001-6707HRS
1
10
Anchor Bracket Ext.
001-4703XAX
2
5
Tank Saddle
001-4703X
1
11
Tank Fitting
005-9100
1
6
U-Bolt Rollbelt
001-4703XAB
2
Tank Kit Assembly
030-0447C-TK
(Includes Ref# 1-11)
4
5
1
8
6
9
10
11
3
7
2

16
Parts Breakdown for Control Box and Drain Fill Kit
Model 457 Control Box
Parts Breakdown for Drain Fill (Model 442C)
Ref
Description
Part #
Qty
Ref
Description
Part #
Qty
1
Speed dial
006-2022A
1
8
Power lead
006-4580C
1
2
U-bracket
001-2012E
1
Pre-Serial # 4549
3
Control box knob
008-0923
2
4
Control box enclosure
006-2015A
1
9
Power lead
006-4580M
1
5
Control box cover
006-2015B
1
After Serial # 4550
6
Pump lead
006-4583
1
10
Box Plug
006-4581M
1
7
Box Plug
006-4581
After Serial # 4550
Pre-Serial # 4549
Ref
Description
Part #
Qty
Ref
Description
Part #
Qty
1
Straight fitting
003-A3434
1
5
Male coupler
002-2205G
1
2
Ball valve
002-2200
1
6
Elbow
003-EL3434
1
3
Valve holder
001-6702H
1
7
Jiffy clip
008-9010
3
4
Female coupler
002-2204A
1
8
Hose clamp
003-9004
2
NP
3/4” Hose
002-9002
10ft
1
2
3
4
5
6
7
8
3
1
6
8
2
4
9
5
10
7

17
Parts Breakdown Model Specific Installation Kits
Harvest Tec Model 442C Installation Kit
Ref #
Description
Part #
Qty
Ref #
Description
Part #
Qty
1
Valve Mount
001-4703XE
1
17
Female Disconnect 1/4"
004-1207H
1
2
Gauge-4”
002-2208Z
1
18
Washer
004-1207W
1
3
Gauge Holder
001-4717
1
19
Tip Strainer
004-1203-100
1
4
Fitting 1/4" x 1/2"
003-EL1412
2
20
Diaphragm Check Valve
004-1207V
1
5
Tee 1/4"
003-TT14
1
21
Fitting
003-A1412F
1
6
Tip-Pink
004-T8001-PT
2
22
Filter Bowl Assembly
002-4315
1
7
Tip-Brown
004-T80015-PT
2
23
Nipple
003-M1238
1
8
Tip-Yellow
004-T8005-PT
2
24
Pump 12V
007-4120SE
1
9
Tip-Red
004-T8003-PT
2
25
Elbow
003-EL3812
1
10
Plug Allen
003-F14A
2
26
Elbow
003-SE12
1
11
Manifold Block
001-4435NSB
2
27
Fitting
003-M1212
1
12
Fitting 1/4" x 1/2"
003-A1412
2
28
Ball Valve
002-2212
1
13
1/2" HB Elbow
003-EL12
1
29
Fitting
003-A1212
1
14
EVA Tubing 1/2"
002-9002
26ft
NP
Spray Block Holder
001-4703XD
2
15
Barb Tee 1/2"
003-T1212
1
16
Hose Clamps
003-9003
14
Shield Only Assembly
030-0442C-SO
(Includes Ref # 6-21, NP)
1
29
28
27
26
22
23
24
25
2
3
4
5
8
7
6
10
12
13
11
18
17
12
16
15
14
20
19
21
9

18
Notes:

19
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. If it is determined that a non-Harvest Tec branded
hay preservative has been used inside the Harvest Tec applicator system where the failure occurred, then
Harvest Tec reserves the right to deny the warranty request at their discretion. 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 5/22

20
HARVEST TEC, LLC. .
P.O. BOX 63
2821 HARVEY STREET
HUDSON, WI 54016 USA
PHONE: [phone]
1-800-635-7468
FAX: [phone]
Email: [e-mail]