GMB Güstrower GTU 21 User manual

2
Index page
1. Intended Use 3
1.1.1 Security advice 3
2.1 Warning stickers 4
3. Manual 6
3.1 Coupling
6
3.2 Operation of the transfer vehicle 6
3.2.1 Interrupt of the transfer process 7
3.2.2 Driving in public road 7
3.3 Parking of the transfer vehicle 7
4. Care and maintenance 8
4.1 Measures of care 8
4.2 Cleaning and greasing 8
4.2.1 Lubricants 8
4.2.2 Greasing plan 8
4.3 Maintenance 9
5. Technical data 10
5.1 Deviation 10
5.2 Weights 10
6. Equipment 12
6.1 Rolling tarpaulin 12
6.2 Installation to fill sowing machine or fertilizer spreader and
Hydraulically controlled screw to fill sowing machine or fertilizer spreader 12
6.3 Working searchlight 12
6.4 Camera system 12
6.5 Weighing system 12

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Dear client,
We are pleased to hear that you have decided for a Transfer vehicle from the “Maschinen -
und Antriebstechnik GmbH & Co. KG”.
To achieve the maximum performance and to avoid operating errors, we advice you to
read this manual before putting the machine into operation.
If you have any queries or want to order replacement equipment, please contact us by
calling the listed telephone numbers.
We wish you a successful and effective work with your new transport and transfer vehicle
from Güstrow.
GMB Güstrower Maschinenbau GmbH
Güstrow
Replacement service
Tel.: +493843/2175-0 Tel.: +493843/2175-210
Fax.: +493843/2175-175 Fax.:+493843/2175-211
e-Mail: info@gmb-guestrower.de
Our transport and transfer techniques are constantly evolving. We reserve the rights to
apply technical adjustments without prior announcement.
For damages and operational errors resulting of disregarding of the manual, the MuA
Landtechnik GmbH & Co. KG will assume no liability and guarantee.
1. Intended use
The transfer vehicle is a working device for transporting and transferring of crop, free
flowing fertilizer and seed, as usually used in the agriculture.
Any further use is not intended, therefore the user has to bear the risk.
To the intended use also belongs the observance of the care and maintenance conditions
and the security advices as well as the exclusive use of the original spare parts.
2. Security advice
1. When loading, transferring and driving no person may be located on the transfer
vehicle.
2. The warning advices and security instalments located at the trailer must not be
removed or changed.
3. Before decoupling assure yourself that the vehicle is front-heavy to avoid a rear-up.
4. The decoupled trailer must not be loaded.
5. While driving backwards a banksman is required.
6. Make sure all protection devices are installed before the drive shaft is switched on
when using the pto.
7. It is not possible to brake, while the braking power regulator is on position “loose”.

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8. After the first loaded tour the wheel bearing has to be checked (after that every 50
working hours) and all screw connections, especially wheel bolt and towing eye,
have to be checked.
9. The engine of the carrier vehicle needs to be switched off and the ignition key to be
pulled out when working in or at the transfer vehicle.
10.Every care and maintenance work as well as repairs may only be done with a
switched off engine and a completely emptied bin. The spreader has to stand
unendangered and secured against rolling.
11.After repairs every protection device is to be reinstalled. Operating without them is
strictly forbidden.
12.Before driving on public streets the spout has to be fold in.
13.The allowed axle load, permitted drawbar load, the over-all weight and the
maximum speed need to be considered.
14.When having brake malfunctions instantly stop the carrier vehicle and rectify the
problem.
15.When coupling and starting no persons are allowed to be between the carrier
vehicle and the trailer. If a work-related stay is required, carrier and transfer vehicle
need to be secured against rolling.
16.The door under the horizontal auger is to be closed before the machine is activated.
17.The cleaning points at the bottom of the vertical auger always need to be closed
before the machine is activated.
18.In the range of the entire hydraulic system exists the danger to be injured by
pressurised leaking hydraulic oil. Damaged or defect parts of the hydraulic system
have to be changed immediately by professionals.
19.When opening the unloading auger take care that in there are no obstacles in the
moving range. Opening near electric overhead wires is strictly forbidden.
20.Always make sure of free escape of the material from the unloading auger.
21.The use, care and maintenance of the chaser basically need to take place with
carefulness and respect to every relevant security advice, regulation and law by
persons who are familiar with it and are well informed about the dangers.
1.2 Warning Stickers
Warning stickers point out possible dangerous situations. They serve the security of all
persons, who deal with the transfer vehicle.
All imaged signs have to be installed well readable on the transport and transfer vehicles
from Güstrow.
Missing or unreadable stickers have to be replaced instantly!

5
Caution!
Missing or unreadable stickers can be obtained at authorized dealers or directly at the firm
MuA Güstrow.
•Risk of crushing during operation
•No riders during work and transport
•Keep sufficient distance from electric
overhead wires especially with open
unloading auger (install sign in driving cab)
•Do not stand in operating range of
moving parts
•Never reach in the turning augers
•While operating do not open or
remove protection equipment
5

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Abb.1 overview of the warning stickers
3. Manual
This manual corresponds to the technical details at time of supply. We reserve changes at
any time. Claims of any kind cannot be taken from this manual.
3.1 Coupling
The height of the towing eye has to be adjusted to the bolt coupling of the tractor. (chassis
has to located horizontally or slightly leant to the front) The same applies for the models
with ball-shaped head coupling type 80.
Couple the chassis to the tractor.
Raise the jack fully,( the foot can be removed if this catches the straw swath)
(The bolt coupling needs to conform to the TÜV-guidelines.)
Connect the lines of the compressed air braking system (red: store pipe, yellow: braking
line) and the electric wires.
Adjust the braking power regulator, check brake and lights..
Connect hydraulic couplings and shaft. Check that the speed of the unloading auger
opening is restricted to provide a smooth, slow and controlled movement for both
opening and closing by adjusting the tractor spool valve. The hydraulic slide need to
work on the most conveniently controlled spool valve on the tractor as this stops the flow
of material in an emergency.
Loose hand brake at trailer, remove wheel wedges.
The trailer is ready for use.
3.2 Operation of the transfer vehicle
Chasers with steering axle (GTU25 / GTU32) the operating ran of the hydraulic system
has to be set to retracted/floating position to activate the steering. When reversing the
steering control rams need to be fully extended, to ensure the steering is locked.
Before loading the trailer close the hydraulic slides. The display on the front side of the
vehicle is located on position “closed”.

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When filling the transfer vehicle take care that no foreign substances reach into the trailer.
Should the vehicle be loaded with a loader, crane or the like, we recommend using a
screen (screen look “Additional equipment”).
After filling the trailer only unload on a level work place. Open the unloading auger,
Activate the augers by operating the pto shaft. The pto rev should amount between 540
and 1000 rpm depending on conveying good; an operation above 1000 rpm is forbidden.
Get the rev slowly to the rated-speed. When filling the seed drills and fertilizer spreaders
we recommend using a rev of 540 rpm, for transferring of crop a rev of 1000 rpm. Then
open the hydraulic slides and adjust it to the favoured unloading speed. The pointers for
the position of the slider at the front of the machine are moving to the position “open”.
The bin is unloading. After the transferring process has ended, first close the hydraulic
slides then stop the augers when they are completely empty.
Then fold in the unloading auger.
Caution!
Stopping the augers full can cause serious damage to the driveline, always close
slides and run augers empty before stopping, If the unloading auger is folded before it is
emptied, material will run out of the hinge point.
The vehicle can now be loaded again.
3.2.1 Interrupt of the transfer process
When interrupting the transfer process the same steps have to be proceeded as after the
end of the transfer process.
Caution!
When interrupting the unloading process make sure, that at first the slides are closed and
then the augers are shut off to avoid a start up of the augers under full load. If the
unloading auger is folded before it is empty, material will run out of the hinge point.
3.2.2 Driving on public roads
When driving on public roads the following points need to be considered:
The jack has to be lifted completely.
The hydraulic lines between carrier vehicle and trailer have to be locked to avoid an
opening during the tour.
The unloading auger has to be folded in.
Chasers with steering axle (GTU25 / GTU32) the operating ran of the hydraulic system
has to be set to retracted/floating position to activate the steering. When reversing the
steering control rams need to be fully extended, to ensure the steering is locked.
3.3 Parking of the transfer vehicle
The transfer vehicle always has to be parked completely empty. Proceed the following
steps:
•pull the parking brake, in slope areas put wedges in front of the wheels
•separate shaft, hydraulic and braking pipes as well as electric junction from the tractor
and put them in the designated holders
•extend jack
•open cleaning door, so that intruding water can drain
•uncouple transfer vehicle

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4. Care and maintenance
4.1 Measures of care
The most important measures of care are the regular cleaning and following greasing of
the transfer vehicle. By that aggressive substances like fertilizers and the like are removed
and the functionality is kept.
After every campaign it should be cleaned thoroughly.
It has to be especially taken care of the removal of straw in the range of the augers to
avoid a winding round the spinning parts.
4.2 Cleaning and greasing
While cleaning and greasing switch of the engine of the carrier vehicle, pull out the ignition
key and pull the parking brake.
When cleaning with a pressure washer a spray nozzle distance of a minimum of 400mm is
to be maintained.
The water temperature may no exceed 60°.
Before starting the cleaning the door/slides of the transfer vehicle has to be opened:
•Horizontal auger : door beneath the screw
hydraulic slide
•Emptying auger: cleaning doors below the screw
4.2.1 Lubricants
For greasing the trailer only the lubricants with the following described characteristics may
be used.
lubricant
sort
quality
oil
transmission oil SAE 90 EP
API - GL 5
grease
Li - grease
DIN 51502 KP 2K
4.2.2 Greasing plan
The following grease spots of the transfer vehicle need to be greased every 50 operation
hours:
•base of brake camshaft
•base of the level arm of the brake
•bearing at the conveyor augers
•bearing at the hinge of the emptying auger
•actuation set of the parking brake
The following grease spots of the transfer vehicle need to be greased every 200 operation
hours:
•return shaft of the hand brake system
•heads of the hydraulic cylinders
•oil change in transmission
The pto shaft should be greased every 8 operation hours. For the handling and
maintenance the manual of the producer of the shaft has to be considered.

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4.3 Maintenance
Before maintenance work at the coupled trailer the engine of the carrier vehicle has to be
switched off and the ignition key to be pulled out. If the engine has to be started during
checks and inspections, special caution is to be exercised.
When working under the jacked transfer vehicle, the vehicle needs to be secured with
appropriate stands.
Maintenance work at the brake and hydraulic system may only be done by trained
professionals under observance of the security advices.
The following maintenance works need to be executed daily:
•check tyre pressure
Caution!
tyre pressures see Point 5.2. “Weights”
•drain water from compressed air supply tank
•check brake system and parking brake on their function
•check electric system on its function
•grease shaft
•check hydraulic system for any damage
•check drive chain tension
•
The following maintenance works need to be executed after 50 operating hours:
•check and adjust the actuation distance of the brake cylinder
•grease every greasing spots as written in the greasing plan
•check auger wear
•check wheel bearings
•check if every screw connection is solidly fixed, especially the towing eye
The following maintenance works need to be executed after 100 operating hours:
•check wheel nuts on fastening torque
thread
Fastening torque in Nm at bolt performance
8.8.
10.9.
12.9.
M18 x 1,5
290
320
350
M20 x 1,5
380
420
460
M22 x 1,5
510
560
610
•check entire compressed air system on function, density and secure fixing
•clear line filter of the braking pipes
•clear wheel hub bearing
The following maintenance works need to be executed after 200 operating hours:
•Grease every greasing spot as written in the greasing plan.
During care and maintenance work leaking oils and grease substances have to be caught
with the proper tools and be disposed environmentally compatible.

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5. Technical Data
5.1 Deviation
GTU 16
GTU 21
GTU 25
GTU 29
GTU32
over-all length
7785
7785
8720
9690
10240
bin length
5000
5000
5700
6700
7250
track width
2150
2150
2225
2225
2050
bin width
2550
2550
2550
2550
2550
over-all width
2800
2950
2875(2975)
2875(2975)
2750
framework height
1050
1135
1330
1330
1100
loading height
2850
3200
3500
3420
3300
transfer height
4500
4500
4670
4670
4430
all data in mm
The data refer to widest wheel equipment (also see point 5.2 Weights). All devices with a
rolling tarpaulin or hopper extension have a greater loading height.
•height with tarpaulin +80mm
5.2 Weights
GTU16
GTU21
GTU25
GTU29
GTU32
over-all weight empty
4800
4960
6500
7620
11000
axle load empty
3890
4020
5525
6500
9300
stabilising load empty
910
940
1000
1140
1700
all data in kg
Caution!
Devises with a weighing system and other equipment differ from the weights given in the
table. Binding for the transport on public streets are the declarations in the TÜV report!
The over-all weights and payloads on public streets refer to the respective wheel with a
tyre pressure of 1,5 bar.
The tyre pressures for the technically possible payload correspond to the
recommendations of the tyre manufacturer.
GTU 16
Wheel BKT 650/60-30,5 16TL
allowed over-all weight on public streets 2000 kg
payload on public streets 7100 kg
technical payload at 2,2 bar 25 km/h 11480 kg
technical payload at 2,2 bar 40 km/h 10000 kg
GTU 21
Wheel Alliance 800/65 R32 172 A8
allowed over-all weight on public streets 12000 kg
payload on public streets 6970 kg
technical payload at 2,4 bar 25 km/h 11340 kg
technical payload at 2,4 bar 40 km/h 9830 kg

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Wheel Continental 800/65 R32 172 A8
allowed over-all weight on public streets 12000 kg
payload on public streets 6970 kg
technical payload at 3,1 bar 25 km/h 15170 kg
technical payload at 3,1 bar 40 km/h 13500 kg
GTU 25
Wheels BKT 650/65-30,5 16 TL
allowed over-all weight on public streets 22000 kg
payload on public streets 15200 kg
technical payload at 2,2 bar 25 km/h 17500 kg
technical payload at 2,2 bar 40 km/h 17500 kg
Wheels Alliance 750/60 R30,5 181D
allowed over-all weight on public streets 22500 kg
payload on public streets 15100 kg
technical payload at 1,7 bar 25 km/h 17500 kg
technical payload at 1,7 bar 40 km/h 17500 kg
GTU 29
Wheels BKT 650/65-30,5 16 TL
allowed over-all weight on public streets 22000 kg
payload on public streets 15200 kg
technical payload at 2,2 bar 25 km/h 17500 kg
technical payload at 2,2 bar 40 km/h 17500 kg
Wheels Alliance 750/60 R30,5 181D
allowed over-all weight on public streets 22500 kg
payload on public streets 15100 kg
technical payload at 1,7 bar 25 km/h 17500 kg
technical payload at 1,7 bar 40 km/h 17500 kg
GTU 32
Wheels 700/50-26,5 174 A8
allowed over-all weight on public streets 28500 kg
payload on public streets 16900 kg
technical payload at 2,4 bar 25 km/h 25600 kg
technical payload at 2,4 bar 40 km/h 24800 kg
6. Equipment
Due to the equipment parts the fields of application and the characteristics of your
transport and transfer vehicle from Güstrow are improved.
It would give us a great pleasure the receive further suggestions and ideas.

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6.1 Rolling tarpaulin (basic equipment)
The rolling tarpaulin is operated vie a crank from the ground. The crank is located on the
back of the trailer. Take care that the crank is always fixed before beginning the tour. That
applies to the position “tarpaulin rolled up” as well as to the position “tarpaulin unrolled”.
6.2 Installation to fill sowing machine or fertilizer spreader (hydraulically controlled tube)
and hydraulically controlled screw to fill sowing machine and fertilizer spreader
The flexible installation to fill sowing machine or fertilizer spreader contains of a hydraulic
pivoted chute, which is to be bolted on the unloading auger chute. By that the loading of a
fertilizer spreader or of a seed drill is possible.
While working with fertiliser the rev of the pto shaft must not exceed 540 rpm. The slides
above the horizontal auger should only to be opened to position “half”.
At greater distances between the transfer vehicle and the drill a hydraulically controlled
auger to fill sowing machine and fertilizer spreader can be installed on the unloading
auger, which helps to increase the unloading from the bin to a distance of 7m.
6.3 Working Searchlight
With the help of a working search light it is possible to illuminate the unloading area to
guarantee a secure transfer especially during the harvest campaign in the evening and
night sessions.
The working light is powered from the tail lights of the bin, a switch to turn on the
searchlight is located on the junction box at the front of the transfer vehicle. The
searchlight is turnable and pivoted and may be adjusted individually.
While driving on public streets the working searchlights may not be switched on.
6.4 Camera system
The camera system allows the driver to monitor the transfer resp. loading process without
effort. It is possible to install either a camera displaying the interior of the bin or a camera
pointing at the transfer place or both.
The cameras has a sun shield and installed infrared - LEDs to deliver a marvellous image
quality even at extreme conditions of illumination. The case of the camera is water-proofed
(level of protection IP68), the operation temperature may not exceed the range of -30°C to
+50°C
A 4,5” monochrome screen is used, which can be installed with the help of the supplied
holder in driver’s cab. The monitor has two camera ports, an installed sun shield as well as
a dimmer switch for night operation.
The power supply of the system is made via the onboard electric of the tractor (socket in
driver’s cab), universal voltage 12-24V DC.
6.5 Weighing system
The weighing system consists of multiple weighing poles, a weigh indicator and the
junction box as well as the respective cable system.
A printer and a chip card interface can be optionally upgraded.
Before installing, controlling and operating with the weighing system please read the
manual of the weighing system producer carefully and completely.
This manual suits for next models
2
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