Tar River Econo-Wrap EW-450A User manual

Operator’s Manual
Rev. 05/22
Stationary Bale Wrapper
EW-450A

Technical & Operaonal Informaon
Length 100inches
Working Width 55inches
Weight of Machine 1,091lbs.
Dimensions of Bales Being Wrapped
Diameter 39inches‐63inches
Length Upto55inches
Weight of Bales Upto2100lbs.
Horsepower Requirement 40HPMinimum
Mounng Method 3PointHitch
Bale Wrapper Drive HydraulicMotor
Type of Oil in the Hydraulic System GearOil
Tractor Engine Revoluons 1500RPM
Roller Rotaons 2RPM
Bale Loading Device
Loadingdevicewithliingcapacitygreaterthantheweightof
thebalesbeingwrappedwiththeabilitytolibalehigherthan
4’.
Minimum Number of Bale Wraps 2(doublewithoverlapping)
Total Time for Double Wrapping (with a diameter of 4’) approx.90seconds
Total Number of Wraps (for bales with a diameter of 4’) 30”film‐18wraps(20”film‐26wraps)
Wrapping Counter Electronic
Type of Wrapping Film Specialpolyethylenefilm,0.025‐0.03mmthickwhichisstretcha‐
ble,self‐adhesive,withultra‐violetraystabilizer
Film Wrapping Rotaryknivesonafixedbracket,therotangframecungaer
loadingthenextbaleaerthefirstrotaonoftheframe
Unloading Wrapped Bales
Bylngthelowerframe(togetherwiththerotangframeand
thebale)backwardsaerunlockingit(bypullingtheline)and
aerparalliingofthewrapperonthe3‐PointHitchoftractor
Bale Wrapper Operaon 2people—1operangwrapperontractor,1loadingthebales

Introduction - General information
Persons operating the bale wrapper should absolutely consult the instruction manual and should have a
knowledge of OCCUPATIONAL SAFETY and HEALTH inthe use of agricultural machinery;
The Bale wrapper is shipped with the operating instructions and warranty card in the complete state, any
unauthorized or willful changes in the design will cause the loss of it’s warranty;
The service and maintenance of the bale wrapper incompatible with this instruction manual releases the
manufacturer from liability for consequences resulting from its improper use and causes the warranty to be null
and void. The manufacturer reserves the right to make changes in the design of the machine not shown in this
manual and it’s description and intended use ofmachine and the basic technical data ofthis machine.
The bale wrapper, EW-450A, is asimple-to-use machine with a hydraulic drive. It’s intended use is for
the wrapping of individual bales of pre-dried hay from grasses and leguminous fodder plants with stretch film.
Plants intended for bales for silage should be mowed in the initial phase of earing. After adozen or so hours of
pre-drying, the hay should be collected using the roll baler in a way that ensures maximum density with the
smallest amount of air in the middle of the bale. After the rolling of the bales, they should be wrapped as soon
as possible on the bale wrapper. The bales left unwrapped for long periods of time may be caused toresist the
putrefactive processes.
Bale wrapping with the film (foil), protects the mixture for ensilage before the long exposure to air, light
and moisture, creates favourable conditions for fermentation process. After wrapping, you must stack bales
in amaximum of two layers inadry place on level ground. Particular attention should be paid toavoid
possible damage to the film. The damaged areas should be repaired in such away as to ensure the continuity
of the layer. After approximately 6to8weeks of storage at ideal temperatures, The haylage is then suitable for
the feeding of animals with the feed having reached it’s maximum nurishment level.

This bale wrapper is suitable for use with tractors of a 0.9 minimum class and
with power more than 30 KW equipped with a set of weights on the front axle.
Its design is adapted for it’s connection with the Three Point Hitch of the tractor.
The Rotation frame shown as number 3 on the previous page placed on the lower frame shown as
number 2 is connected aligned with the main frame shown as number 1 and is suspended on the three-
point system of tractor. The lower frame together with the rotation frame is secured against deflection by a
movable locking pin. Unloading the bales from the bale wrapper is possible after unlocking the pin and after
the bale wrapper is raised using the Three Point Hitch of the tractor. It then unloads as the lower frame is
tilted and the frame is rotated thus unloading the bales
The movement of the rotation frame and the rotation drums shown as by the number 5 on the previous
page is carried out by the operation of the hydraulic motor, number 6 with overload valve wihich is operated
by the hydraulic pump of tractor. This overload valve provides for smooth starting and stopping of the
machine. It also protects the mechanical components of the drive from damage as a result of excessive
load. The valve is factory-tuned to the engine and sealed. It should not be adjusted unnecessarily..
The drive from the engine is transmitted via a 5/8” (10B) chain on the chain wheel of rotation frame.
This provides for a rotation of the bale along the vertical axis. Next, power is transmitted to the drums
welded via a conical toothed gear and two chain transmissions. This provides a rotation of the bale
with the appropriate ratio in the horizontal axis, this causes a partial overlapping film layers and
tightness of the layer. Roll of film is placed in the feeder (4). The film is stretched through the two tension
rolls connected with toothed gear, which ensures tight adhesion of subsequent layers of film.
The transmission ratio is chosen so as to ensure
the optimal stretching the film, however, if
necessary, stretching can be adjusted by
tightening the nut pressure of film. The maximum
extension/elongation of the film should not
exceed 70% of original length. That is, segment of
film with the length of 10 cm after stretching,
should not be longer than 17cm. should be applied a
polyester film, stretch film, self-adhesive with
stabilizer of ultraviolet rays with a thickness of 0.025-
0.03mm and the width of 500 or 750 mm.

Principles of safe operation of bale wrapper
Bale wrapper must be operated by adult with driving licence to the steering of agricultural tractors, having
knowledge of HEALTH and SAFETY at WORK in the use of agricultural equipment;
During installation, adjustment and repairs of bale wrapper, turn off the tractor engine and remove the keys
from the ignition, during these steps the bale wrapper should be lowered to the ground and tractor should be
stationary;
Before switching on the rotary drive, make sure that switching on the drive does not threaten anyone;
Staying of persons in work zone of bale wrapper and loader is prohibited;
 Before starting work, check the condition of the machine and its completeness;
 Work with machine damaged or without protective covers is prohibited;
 Before starting work, check the condition of the hydraulic hoses/lines, work with broken or deformed lines/
hoses is prohibited;
 Transport of bales on bale wrapper when traveling on public roads is prohibited;
Whenloadingbalesoneshouldpayspecialaenononpermissibleloadcapacityofloadingequipment.Exceedingtheloadcapacitymay
causedamagetomachineandaccident. 

SAFETY SIGNS
2,3. Before commencement of machine operation, please refer to the instruction manual.
4,5,7. Moving components, keep a minimum distance of 2m.
6. Chain transmission, please take special care .
9.Direction of rotation of the rotating frame
Permissible speed when driving on public roads
Warning plate in white and red stripes
2
WARNING!
ALWAYS READ
THE USER MANUAL
BEFORE STARTING
THE MACHINE!
5 KEEP DISTANCE
FROM WORKING MACHINE
minimum 2 meters

Functioning, operational use of bale wrapper
Transport and loading
Bale wrapper is suitable for transporting on Three Point Hitch of tractor. During transport on public roads,
please observe the following principles:
Hydraulic hoses should be connected toahydraulic pump.
Hydraulic system of bale wrapper should be filled with oil, therefore longitudinal rotating frame set inthe
transport position, will be secured against rotation;
Locking pin of the lower frame should be inserted in order toblock itagainst deflection;
Warning plate in white and red stripes with the red warning light and triangular plate must be mounted in a
visible way;
To secure the suspension pins one should use only original and functional cotters. The use of substitute
protections such as bolts, wires etc. is prohibited;
Transporting bales on bale wrapper when traveling on public roads isprohibited.
Before loading of bale wrapper on transport of lorries, one should mount the machine on a wooden pallet
and take precautions against before displacement.
Assembly with tractor
Correct assembly of bale wrapper with the tractor should be made according to the following principles:
 After removing the agricultural hitching from tractor, withdraw it to evenly placed bale wrapper;
 Connect the machine with Three Point Hitch of tractor while adjust the length of the single upper
connecting link;
 Protect the connections with pins and original cotters of tractor equipment;
 Connect the quick release couplings of hydraulic hoses of tractor with hydraulic installation
sockets;
 Sensor cable of of overwraps must be connected with counter, counter put in a prominent position in
the tractor cab;

Attempt/test of the operation
Before start wrapping, you should check the operation of the machine:
Raising on Three Point Hitch of tractor;
Smoothness and direction of rotation of rotating frame and drums (rotations of the frame - to the left /
counter clockwise);
Operation of the interlocking, tilting the lower frame and the state of the chain. A chain attached to the
brackets of main frame restricts/limits the size of the tilting while unloading the wrapped bale. After lowering
of bale wrapper and return of the lower frame to horizontal position, locking pin when extended secures
the frame before tilting;
At the start of the hydraulic system please take special care, one should check whether in the field of rotation
of rotational frame with drums there are no people or objects, starting the warning with sound signal;
During operation the wrapper, the pin must absolutely block lower frame before tilting;
Extension /elongation of film as a result of tension, must not be more than 70% i.e. the length of the
unstretched film of 10 cm should increase to not more as 17 cm and width for the film of 750 mm should
not be smaller than 600 mm and for film of 500, not smaller than 400 .
Attention!
Before starting the machine, please take particular care. Lower frame must be secured before
tilting with locking pin.
Installation of film
To install the film roll, one should tilt the bracket with rubber rollers.
After removing the clamping nut, install the roller so that was embedded on the lower clamping ring, then
secure from the top with clamping ring and the clamping nut. Clamp/press down the bracket with rubber
rollers, check whether they are properly pressed against film. In the event of non-parallelism on the contact
of film roller and rubber roller, one should adjust the position of the roll by overbending the fastening rod. In
accordance with the diagram, drag the film by rubber rollers so that it is possible to grasp the tip of the
film.
Fig.7DiagramofinstallingFilmRoll

Loading, wrapping and unloading bales
Loading bales on bale wrapper one should carry out using the available devices with lifting capacity more
than 1000 kg and with the possibility of lifting at the height of the minimum 1m. Loading and wrapping
bales should be carried out in an area of subsequent storage of bales. This will prevent damage to the
film, that may take place during the movement of bales. Before loading, rotating frame with drums
should be set along the tractor. Such setting provides the best access to the machine during loading and
operating/maintenance during the wrapping. Bale wrapper with the tractor should be on level ground and
pin, which locks the lower frame should be protruding. Before starting the wrapping, bale should be in
the center of the length of the rotating drums at equal distances from the side wheels. Next, you need
attach the tip of the film, which protrudes from the feeder to bale, preferably to string as far away from
feeder.

After making sure that the inclusion of the drive does not endanger the surroundings, can start wrapping
including hydraulic drive from the tractor cab. When wrapping, the tractor engine must maintain approximately
1500 rpm. Bale wrapping should occur after 24 (film 20” setting) or after 16 (film 30” settomg) rotations of
rotating frame (after about 1 minute of the wrapping). Fully wrapped the bale should have two layers of film, what
provides a fully leak-proof protection before the access of air and water. After wrapping, one should stop the
machine at the time when rotating frame with drums is in perpendicular position to the axle of the tractor and
the direction of travel. After unlocking the locking pin and lifting of bale wrapper on Three Point Hitch of tractor,
will occur the tilting of the lower frame and self-acting unloading the bale. Do not cut off the film prior to loading.
For the purpose of loading the next bale, one should lower of bale wrapper and lock the lower frame with the
locking pin. The drums must be set in the position as for first loading.
Recommendations for use
During operation of bale wrapper, special attention shall be paid to the technical condition and tension of
driving chains. After starting a new bale wrapper and after wrapping approx. the ten of bales, check tension
of driving chains, in particular of driving chain of rotating frame. To carry out the adjustment of the driving
chain of rotating frame, A)Remove Center Table Guard, B)Remove Gear Covers C) Rotate Bale Tray 90
degrees and D) Remove Front Frame Guard.
Once the chains are exposed, loosen the four nuts M12 (1) of the base of the hydraulic motor. Then, after
loosening the counter nut (2) screw in the bolt of chain tension (3) so that the deflection in the middle of the
longest segment of chain had about 20 mm.
After the adjustment and control/inspection of the technical condition, lubricate the
chain with oil for driving chains.

The overload valve adjustment
If during operation we determine no smoothness of operation, machine jerking, one should carry out the
adjustment of the overload valve. When adjusting hydraulic hoses must be connected to the installation ofthe
tractor.
Adjustment is carried out by means of the adjusting screw marked with the symbol 50 located onthe left
side of the valve. After removing/unscrewing the plastic cover, loosen the counter nut. After unlocking the bolt by
unscrewing it, we increase the smoothness of machine operation. After each half turn of bolt, tighten up the
counter nut and check the effect of adjustment.
Attention!
Do not adjust the valve unnecessarily. When adjusng, please take special care during each starng/ run of the ma‐
chine.
Film width Adjustment
The EW-450Ais intended to bale wrapping with two types of the film about widths 20” and 30” .To adapt
the machine to wrap another available type of film, one should:
Film Rollers
Adjust the height of the pressure of upper film by changing the height of the locking pin
Roller Rotatonal Chain
Change the position of the chains driving the rotating drums –respectively for the film 20” on z-34 gears /
toothed wheels and for film 30” on z-23 gears / toothed wheels .The length of the chains should be changed
using the appropriate half-chain link. The gears are located behind the shield on the back of the Bale Tray.

ChainPosionfor30”‐Sch.1
ChainPosionfor20”‐Sch.2
30”
20”
The Height of the
pressure posion for
the 2 wrap sizes
NOTE: WRAPPER COMES SET UP STANDARD IN THE 20” SETTING FOR FASTER WRAPPING.
30” FILM MAY BE USED IN THIS POSITION. ADJUST WRAP REVOLUTIONS ACCORDINGLY.

Parts Breakdown

EW‐450A
ROTATING FRAME
Note: The rollers can be identified by standing
at the sprocket end of the roller. If the larger
sprocket is facing the operator, it is the LH
roller assembly, AW-T102L. If the smaller
sprocket is facing the operator, it is the RH
roller, AW-T102R. AW-T102R
AW-T102L
Large sprocket
Small sprocket

POSITION PART NUMBER QTY
1AW‐T1011
2AW‐T102R1
3AW‐T1031
4AW‐T1041
5AW‐T1056
6AW‐T1062
7AW‐T1071
8AW‐T1082
9AW‐T1092
10 2
11SRE‐202
12B63052RS8
13SRE‐254
14B60072RS2
15AW‐T1152
16AW‐T1162
17EP311‐00031
18BM08125251
19LNM081252
20NM121753512
21FW1312
22LNM1217512
23BM08125301
24LNM081751
25BM0610161
26AW‐T1261
27NM06101
28STB481915
AW‐T102L
DESCRIPTION
WeldedFrame
WeldedDrumRight
WeldedDrumLe
DriveSha
BevelGearLarge
BearingUnit206Set
GearGuardISet
GearGuardII
CoverforSlideBearingsMetal
WheelSet
Washer
M20SnapRing‐External
Bearing63052RS
M25SnapRing‐External
Bearing60072RS
Chain10B
WheelAxleWelded
Key8x7x40
BoltM8x1.25x258.8Nut
M8x1.25Zn
BoltM12x1.75x355.8Zn
FlatWasherM13Fe‐Zn
NutM12x1.75Zn
BoltM8x1.25x305.8
LockingNutM8Zn
BoltM6x1.0x165.8Zn
Magnet‐SpeedSensor
NutM6x1.0Zn
TapScrew4.8x19Self‐Drilling
Plastic cap
Knife Assembly
Knife
1
EW‐450A
ROTATING FRAME
29AW-T1294
30EWT0091
31274-031-269 2

EW‐450A
LOWER FRAME

EW‐450A
LOWER FRAME
POSITION PART NUMBER DESCRIPTION QTY
1AW‐T201LowerFrame1
2AW‐T202HydraulicEngine1
3AW‐T203SafetyValve1
4AW‐T204FrameCover(lid)1
5AW‐T205BaseofEngine1
6AW‐T206HydraulicHoses2
7AW‐T207HydraulicCoupler2
8
9AW‐T209CoverofGear1
10AW‐T210Chain10B1
11AW‐T211ChainWheelz‐121
12 Washero21Cu2
13AW‐T213BevelGearz‐171
14FW20M20FlatWasher 1
15LW20M20LockWasher 1
16LNM2025M20LockingNut 1
17LNM12175M12x1.75LockingNut 2
18AW‐T218ChainGuide2
19SSM0812520SocketScrewM8x1.25x205.84
20NM08125NutM8x1.254
21BM06101600BoltM6x1.0x165.8Zn2
22BM0812530BoltM8x1.25x308.8Zn1
23EP311‐0003Key8x7x302
24BM061016BoltM6x1.0x155.8Zn
25LW06M6LockWasher
26BM1217545BoltM12x1.75x455.8Zn2
27LNM12175LockingNutM12x1.751
28BM12175100BoltM12x1.75x1005.81
29LNM12175LockingNutM12x1.75Zn6
30FW12M12FlatWasherZn4

EW‐450A
MAIN FRAME

EW‐450A
MAIN FRAME
POSITION PART NUMBER DESCRIPTION QTY
1AW‐T301MainFrame1
2AW‐T302LateralCoupler/ConnecngLink1
3AW‐T303FeederArm2
4
5AW‐T305LockingLever1
6AW‐T306LockingPin1
7AW‐T307AgriculturalChain1
8
9AW‐T309SensorandCounterCable1
10AW‐T310Spring1
11AW‐T311FramePin1
12FW37M37FlatWasherZn
13
14BM1217570BoltM12x1.75x705.8Zn1
15FW12M12FlatWasherZn2
16LNM12175LockingNutM12x1.75Zn1
17BM12175350BoltM12x1.75x355.8Zn2
18FW12M12FlatWasherZn2
19LNM12175LockingNutM12x1.75Zn2
20BM1217545BoltM12x1.75x455.8Zn2
21FW12M12FlatWasherZn2
22LNM12175LockingNutM12x1.75Zn2
23BM1217570BoltM12x1.75x705.8Zn2
24BM1217530BoltM12x1.75x305.8Zn2
25FW12M12FlatWasherZn2
26BM1217525BoltM12x1.75x255.8Zn4

EW‐450A
FILM FEEDER