Gurdal GRDT User manual
INTRODUCTION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
This user manual is an integral part of the trailer you purchased. New and used trailer suppliers must provide in
writing that the user manual is handed over with the trailer to the customer.
The information contained herein is valid for the date of publication. As a result of improvement and development
efforts, some numerical values and pictures in this manual may not match the actual features of the trailer provided
to the end user. The manufacturer reserves the right to make design changes to the trailers without making minor
changes to this User's Guide.
This User’s Manual, which is an integral part of your trailer, must be carefully read by operators or users before
operating, and all recommendations must be obeyed. Thus, the safe operation of the trailer is guaranteed and its
problem free usage is ensured. Your trailer is designed to meet mandatory standards, documents and legal
regulations in force.
ALL DRIVERS OF THIS TRAILER MUST READ and UNDERSTAND THE CONTENTS OF THE
USER’S MANUAL BEFORE COMMENCING WORK.
This user manual describes the basic safety rules and operation of the type of “GRDT RIGID DRAWBAR” trailer.
If the information in the user manual needs to be clarified, the driver should contact the dealer or the manufacturer
where his trailer was purchased for assistance.
Please contact us http://www.gurdalromork.com/
The legal obligations of the manufacturer, the warranty and the elements indicating the complete and current
regulations are specified in the annex of the warranty.
GÜRDAL reserves the right to make changes without prior notice and without undertaking the obligations arising
from these changes.
We wish you safe and profitable miles!
Best regards
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
VARSAKLAR MAHALLESİ KÜÇÜK SANAYİ SİTESİ 9277 SK. NO:4
KOZAN/ADANA/TURKEY
web: http://www.gurdalromork.com/
TABLE OF CONTENTS
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
INTRODUCTION
2
TABLE OF CONTENTS
3
1.0
BASIC INFORMATION
5
1.1
Intend to use of;
5
1.2
Basic Equipments
5
1.3
Vehıcle Identity (VIN No.):
6
2.0
GENERAL SAFETY RULES
7
2.1
SYMBOLS AND DESCRIPTIONS
7
2.2
OBLİGATORY NOTİFICATİON
7
2.3
GENERAL SAFETY REGULATİONS OF WORK AND USE
7
2.3.1
Safety Of Operatıon
8
2.3.2
Tyres
10
2.3.3
Pneumatic System
10
2.3.4
Hyrdraulic System
10
2.3.5
Periodic Maintenance
10
2.3.6
Travelling On Public Roads
11
2.4
WARNING/INFORMATION SIGNS AND LABELS OF TRAILER
13
2.5
LOCATIONS OF SIGNS ON THE TRAILER
15
3.0
TECHNICAL SPECIFICATIONS
14
3.1
GENERAL DATA
14
3.2
BODY TYPE
15
3.3
AXLES
15
3.4
WHEELS/TIRES
15
4.0
GENERAL DESCRIPTION OF DESIGN AND FUNCTION
16
INTRODUCTION
16
4.1
CHASSIS
16
4.2
LOADİNG AREA
16
4.3
HYDRAULIC TIPPING MECHANIZM
16
4.4
ELECTRICAL SYSTEM (SIGNALLING AND WARNING)
20
4.5
BRAKING SYSTEM
20
5.0
STORAGE, SALE AND DELIVERY
21
5.1
STORAGE
21
5.2
SALE
21
5.3
DELIVERY
21
6.0
OPERATIONAL INFORMATION
22
6.1
COMISSIONING
22
6.2
LOADING
22
6.3
UNLOADING
23
6.4
DRIVING ON PUBLIC ROADS
24
6.5
COUPLING OF TRAILER TO TRACTOR
25
6.6
DECOUPLING OF TRAILER FROM TRACTOR
25
7.0
SERVICING OF THE TRAILER
27
TABLE OF CONTENTS
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
7.1
SERVICING INSTRUCTION FOR ADJUSTED TRAILER COMPONENTS
27
7.1.1
Wheels –Bearİng Clearance Adjustment
27
7.2
BRAKES
27
7.2.1
Brakes –Servicing The Brake Pneumatic System
28
7.2.2
Brakes - Hydraulic Brake System Maintenance
28
7.2.3
Brakes –Adjustment of The Brake System
28
7.3
WHEELS –TYRES
30
7.4
HYDRAULIC SYSTEM
30
7.4.1
Hydraulic System –Servicing Of The Load Body Hydraulic Tipping System
30
7.4.2
Hydraulic System –Adjustment Of The Load Body Hydraulic Tipping Mechanism
30
8.0
TROUBLESHOOTING
32
8.1
Troubleshooting List
32
9.0
PERIODIC MAINTENANCE
33
9.1
Lubrication
33
9.1.1
Lubrication Table
33
9.1.2
Lubrication Schema
33
9.1.3
Lubrication Instructions
34
9.2
MAINTENANCE AND SERVICE
35
9.2.1
Tightening Torque Values
36
9.3
PERIODIC MAINTENANCE TABLE
37
10.0
DISPOSAL OF THE TRAILER
39
10.1
DISPOSAL OF THE TRAILER
39
11.0
RESIDUAL RISK
40
11.1
DESCRIPTION OF RESIDUAL RISKS
40
11.2
RESIDUAL RISK ASSESSMENT
40
12.0
WARRANTY TERMS & CONDITIONS
41
1.0
BASIC INFORMATION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
1.1 INTEND TO USE OF:
The trailer is designed for transport of harvested crops and agricultural products as well as loose and bulk
materials in the vicinity of the farm and on public roads at a maximum speed of 40 km/h.
The trailer must not be used in any other purposes than that described above.
Using it as intended also involves all actions connected with the safe usage and proper operation and
maintenance.
The trailer is unloaded manually or by tilting the load back or on the sides.
The trailer is designed for connection with agricultural tractors of different power ratings, equipped with an
external power hydraulic system, an electrical outlet for electrical lighting and warning systems, and a braking
system of corrugated tractors and a transporting component.
•Do not use this trailer for the transport of fuel, gas cylinders, environmentally hazardous substances and
similar loads due to the compatibility requirements for the carriage of hazardous materials. The manufacturer
cannot be held responsible for any damages that occurs, as such transports will only be carried out by the
user.
•The trailer must only be used by people who have read the instruction manual and have received training on
danger and first aid for victims of accident.
•Comply with all applicable laws for accident prevention and all other accepted rules on engineering safety,
occupational health and traffic safety.
The manufacturer cannot be held responsible for any damages resulting from any unauthorized modifications to
the design of this trailer.
THE TRAILER IS NOT DESIGNED FOR TRANSPORTING OF PEOPLE.
1.2 BASIC EQUIPMENTS:
The basic equipment of each trailer includes:
• Instructions for User’s guide;
• Warranty certificate with warranty conditions;
• Bracket for the "slow-moving vehicle" sign;
• Two-line pneumatic brakes with adjustable braking force (optionally, single system and hydraulic system are
available);
• Parking brake;
• Lighting installation;
• Pneumatic/Spring suspension system.
Up on the customer request (and for an additional fee), the manufacturer can equip the trailer with a slow-moving
vehicle sign and a reflective warning triangle.
.
1.0
BASIC INFORMATION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
1.3 VEHICLE IDENTITY (VIN No.):
Vehicle consisting of 17 characters and starting with the world manufacturer code (WMI) Chassis No. written by
punching or engraving on the chassis arm in the right front corner of the trailer.
Trailer is tracked with Chassis No during the usage.
The Type Label is mounted on the right front-bottom corner of the trailer with rivets or by sticking.
Örnek Tip Etiketi
2.0
GENERAL SAFETY RULES
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
2.1 SYMBOLS AND DESCRIPTIONS:
CAUTION!
A safety instruction follows this symbol. Failure to follow this instruction correctly may result in
damage to your trailer, injury, and in some cases death.
INFO!
It symbolizes that it is connected with another information.
For example, a link to another document or a useful tip.
WARNING!
It symbolizes the in case of malfunctions.
IMPORTANT!!
It symbolizes the need for maintenance, repair and / or cleaning.
Qualified persons who perform the required tasks by always using their education, experience and training, as
well as their understanding of standards, definitions, accident prevention regulations and operating conditions;
hence they are also capable of identifying and avoiding potential hazards.
Among others, these persons are also required to understand first aid measures for the injured (e.g. by wounding).
The term of “Operational Instructions” includes settings, starting (preparation for use) and operation (starting,
commissioning, powering off, etc.).
The term of“Servicing of the Trailer” includes checks and care (control, adjustments), servicing and repairs
(troubleshooting).
Note all other (specially highlighted) indications for transport, assembly, operation, servicing and technical data
(in the operating instructions, production records and on the trailer itself). It is all the same essential due to the
potential (direct and indirect) hazards and their consequences being severe damage of human health and property.
2.2 OBLIGATORY NOTIFICATION
When the trailer is transferred to another user, the Operating Instructions shall be transferred as well, whereas the
receiving user must undergo training according to the instructions.
2.3 GENERAL SAFETY REGULATIONS OF WORK AND USE
Read this chapter carefully prior to using of the trailer. Always apply the following points of attention in the
daily use of the trailer!
Before each start of work, inspect the trailer for work safety.
❖Aside from the guidelines in these Operating Instructions, follow the general regulations for safety and
accident prevention.
❖The affixed information and warning signs and text indicate important guidance for safe operation. Follow
for your own safety.
2.0
GENERAL SAFETY RULES
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
❖Start the trailer only when all required equipment is connected and secured (the hitch and tow bar system,
couplings, etc.).
❖Understand all equipment and controls, as well as their functions, before work. It is too late to learn that
during work.
The trailer must not be used by persons who are under the influence of alcohol and/or other substances, and/or
not trained or suitably licensed to operate motor vehicles.
2.3.1 Safety of Operation
1. All work safety information shall be given to all other users of the trailer.
2. Check the direct environment (for children and bystanders) before start. Pay particular attention when
visibility is poor.
3. Do not remain on the trailer in motion, while coupling the trailer with a tractor and loading or unloading
the trailer.
4. After unloading the trailer, lower the load body completely. Never leave the trailer unattended with its load
body raised.
5. Enter the trailer or the load body surface only when it has completely stopped and with the tractor engine
stopped. Remove ignition key.
6. Lift and lower the loading body only from the driver’s seat.
7. Hitch the trailer according to regulations, couple only with recommended equipment and secure the tow
bar hitch-ring to the tractor transport hitch.
8. Exercise extreme caution when coupling/ decoupling the trailer with/from the tractor.
9. When installing and removing supports, security/safety equipment and ladders, always position them to
ensure safety to operators.
10. Follow the maximum permissible axle loads, total weight and transport dimensions.
11. Do the following checks: coupling and functional test of brakes and lights, inspect the slow-moving vehicle
sign, and check other protective devices.
12. Do a functional test of lights and brakes before driving. Also prepare the trailer as recommended in Section
“Travelling on public roads”.
13. Mind the changes in vehicle behaviour, steerability and braking efficiency due to the hitched trailer and its
load.
14. When towing the trailer, mind the layout of loads and/or inertia, especially when the load is unevenly
distributed.
15. Do not remain within the range of a load being discharged.
16. Start the hydraulic lift (tipping) of the load body only when;
•the trailer is coupled with a tractor, and
•the trailer is parked on a hard and level ground, and
•no persons in the unloading area, and
•when the tractor’s axis is aligned with the trailer, and
2.0
GENERAL SAFETY RULES
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
•when the machines are at a safe distance from all power lines, and
•there are no strong gusts of wind.
If it is necessary to unload to the rear while parking on a slope, the trailer with the tractor must be parked in
the uphill direction.
If unloading to the side on a slope, tilt the load body to the side opposite to the trailer’s direction of gradient.
17. During any servicing or repairs with the load body raised, secure it (when empty) against falling with the
support delivered with the trailer. Turn off the tractor engine and remove the ignition key.
18. Be careful to avoid crushing of fingers and hands during opening and closing of the load body walls.
19. Mind the warnings of crushand cut hazard areas when starting the work with trailer.There is a risk of injury
when coupling/ decoupling the trailer with/from the tractor. When coupling/decoupling, do not enter
between the trailer and the tractor or stand behind the trailer if the trailer is not secured with wheel chocks
or the parking brake.
20. No person is allowed to remain between the trailer and the tractor if the vehicle is not secured against rolling
with parking brake and/or wheel chocks.
21. When parked, secure the tractor and the trailer against rolling.
22. Do not drive with the lifted load body.
23. When raising the load body, maintain a safe distance from power lines. The sign on the front wall of the
trailer warns of power lines.
24. Always adapt your driving speed to the conditions. Avoid rapid turns when driving uphill or downhill.
25. Maintain a safe distance from the U-turn range of the tractor and trailer train.
26. Ensure adequate visibility (with the help of a signalling person, if necessary) when driving in reverse.
27. Mind inertia of the trailer when cornering.
28. Additional protection for the load transported on the trailer (chains,tarpaulin, plastic sheet, nets, transport
straps, etc.) may be applied only with tractor engine off and the ignition key removed.
29. Remove functional disturbances of attachments only with the engine turned off and the ignition key
removed.
30. Always turn off the engine and remove the ignition key before exiting the tractor. Engage the parking brake
and secure the trailer with the wheel chock.
31. When travelling on public roads, the permissible front and rear axle load of the trailer must not exceed the
aks load.
32. The max. permissible pressure of the load body lifting hydraulic system is 180 Bar.
33. The maximum permissible pressure of the single-line pneumatic braking system is 6,5 bar or 140 bar for
the single-line hydraulic braking system or 8.0 bar for the two-line pneumatic braking system.
34. Prepare the trailer for work (connect the pneumatic and hydraulic hoses, etc.) with the tractor engine off
and the ignition key removed.
35. The manufacturer delivers the trailer completely assembled.
36. All hydraulic lines must be replaced every 5 years.
2.0
GENERAL SAFETY RULES
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
2.3.2 Tyres
1. Be sure to secure the trailer against accidental movement when servicing the tyres.
2. The wheels and tyres shall be repaired by trained personnel with adequate tools.
3. Regularly check the tyre pressure. Maintain the recommended pressure values.
4. Protect the tyres against sunlight during prolonged parking of the trailer.
5. Replace the wheels with the trailer empty, if possible.
2.3.3 Pneumatic System
1. The pneumatic system is under high pressure.
2. When connecting lines with the pneumatic system of the tractor, ensure that the valves on the tractor and the
trailer are depressurised.
3. Periodically inspect the pneumatic connections. Replace all damaged and aged parts immediately. Replace
the lines as recommended in the technical requirements. Replace hoses every five years unless damage is
found earlier.
4. Before attempting any work on the pneumatic system, depressurise it and turn off the tractor engine.
5. All repair work on the pneumatic system may only be performed by specialist services of the trailer’s
manufacturer.
2.3.4 Hydraulic System
1. The hydraulic system works under high pressure.
2. When connecting hydraulic hoses to the tractor hydraulic system, make sure that the valves on the tractor
and trailer are not pressurized.
3. Periodically inspect hydraulic connections. Replace damaged and worn parts immediately. Replace
connecting lines as recommended in manufacturer's technical requirements. Replace hoses every five years
unless damage is found before.
4. Before doing any work on the hydraulic system, depressurize the system and turn off the tractor engine.
5. All repair work on the hydraulic system may only be carried out by the trailer manufacturer's specialist
services.
2.3.5 Periodic Maintenance
1. All maintenance, repair and cleaning operations, as well as troubleshooting must be performed after turning
the drive and the tractor engine off. Remove the ignition key.
2. Inspect all bolts and nuts periodically and retighten if necessary. Replace regular bolts only with the bolts of
the same quality and strength ratings.
3. When servicing under the lifted and tipped and unloaded load body, always secure the body with the support
supplied with the trailer.
4. Use proper tools and safety gloves when replacing any parts.
2.0
GENERAL SAFETY RULES
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
5. After completing your work, thoroughly clean the trailer to leave no remains of the load on the body.
6. Before attempting any welding on the trailer, isolate it completely from all power supply sources.
7. Before attempting any repairs of the electrical system, isolate the trailer completely from all power supply
sources.
8. For the spare parts used periodically, use original spare parts recommended by GÜRDAL.
9. Store the trailer in sheltered areas (preferably on level and hardened ground) and in a manner which prevents
injuries of people.
10. Release all worn out parts to authorised recycling points while following all applicable environmental
protection requirements.
2.3.6 Travelling On Public Roads
Before driving, check that the trailer lighting is working and that the trailer identification is complete.
Follow the traffic code regulations when travelling on public roads.
1. Exceeding the permissible payload and driving speed may damage the trailer and compromise traffic safety.
2. Do not exceed the driving speed of 40 km/h.
3. The trailer is designed for operation at a maximum grade of 8°.
4. When travelling on public roads, the trailer must feature a reflective warning triangle, and the slow-moving
vehicle sign in the trailer bracket located on the chassis frame rear crosspiece (included with the trailer).
5. Do not leave the loaded trailer on slopes and when it is not secured against rolling. Secure the trailer by
engaging the parking brake and chocking the wheels. Also bind the transported load with transport straps.
2.4 WARNING/INFORMATION SIGNS AND LABELS OF TRAILER
The warning signs and labels on the trailer must not be removed. They are intended for safe handling of
the trailer. If any information label is damaged or removed, order a spare one. Text and symbol label stickers are
available from service agents or the trailer’s manufacturer.
WARNING!
CAUTION!
DANGER OF FALLING!
DANGER OF COLLISION
WHEN TURNING!
DANGER OF MOVEMENT!
KEEP A DISTANCE
FROM POWER LINE!
DANGER OF HAND INJURY!
2.0
GENERAL SAFETY RULES
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
READ THE MANUAL!
DO NOT RIDE ON OR IN
FRONT OF THE TRAILER!
DANGER AT TURNING!
KEEP DISTANCE!
USE TYRE WEDGE!
LUBRICATE
PERIODICALLY!
JACKING/LIFTING
POINT!
REMOVE IGNITON KEY
BEFORE SERVICING!
CHECK THE TIGHTNESS OF THE WHEEL
NUTS!
2.0
GENERAL SAFETY RULES
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
2.5 LOCATIONS OF SIGNS ON THE TRAILER
The trailer user is required to keep the warning symbols and text on the trailer legible during its entire
operating life. If damaged or destroyed, replace with new ones.
3.0
TECHNICAL SPECIFICATIONS
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
3.1 GENERAL DATA
Vehicle Type
Agricultural Trailer
Manufacturer
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
Type (model)
GRDT
Location of VIN
Front right hand side of the chassis.
3.2 BODY TYPE
01
FLAT BED
02
DROP SIDE
03
TIPPER
04
TANK
Specicificatios
Unit
GRDL
Suspansion type
Parabolic spring
Brake type
Pneumatic
Voltage rating
V
12, feed by the driving tractor
Maxsimum Speed
Km/s
40
3.0
TECHNICAL SPECIFICATIONS
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
3.3 AXLES
See on the vehicle for the current axle used on your trailer.
Manufacturer
Type (model)
Brake
Max. Axle Capacity
ÇAYIROVA
FD309
Drum
9000 kg
ÇAYIROVA
FD408
Drum
9000 kg
ÇAYIROVA
FD4220
Drum
9000 kg
DÖNMAKSAN
DMS/300*60
Drum
9000 kg
DÖNMAKSAN
DMS/300*90
Drum
9000 kg
3.4 WHEELS/TIRES
Check on the vehicle for available tires used on your trailer.
Size
Speed Categories
Load Capacity Index
Use of Single / Couple
385/65 R22,5
K
160
TEK
12.5/80-15.3
A8
144
TEK
400 / 60 R 15,5
A8
149
TEK
285/70 R19,5
D
152
TEK
4.0
GENERAL DESCRIPTION OF DESIGN AND FUNCTION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
INTRODUCTION
“CAS” Rigid series trailer is a metal structure with an open load bearing surface. The trailer is equipped with a
mechanical / hydraulic / pneumatic service brake and a parking brake that actuates the friction components of the
rear axle service brake, which is manually operated via a mechanism.
The trailer has a complete signal and warning system (an electrical system and reflective lights). The trailer is also
suitable for transportation on public roads.
The trailer was produced in accordance with the Machinery Directive 2006/42/EC.
4.1 CHASSIS
The chassis that forms the trailer consists of the following subassemblies: the subframe, the drawbar, the wheel and
suspension components are the main groups. Bottom frame and drawbar are welded structures made of steel sheet
and profiles.
Trailer wheels and components consist of the following groups:
Axles (front and rear)
• Tires
• Brakes
The axles are made of box profiles with wheel hubs on both ends. It is equipped with drum brakes operated by
mechanical opening cams. Single and / or double tire wheels are available.
The trailer suspension consists of steel semi-elliptical leaf springs attached to the turntable frame and the subframe
with studs and bridges. Suspension springs are attached to the chassis with bolts.
4.2 LOADING AREA
The trailer loading space comprises the following:
• The top frame (box frame) that is set on the bottom frame (chassis frame) in articulated seats secured by pins which
serve as pivots during tilting (tipping) of the top frame (load body/box).
• The side walls/boards and their top sections are singular components. Each component features a separate set of locks
for closing and opening of individual wall and top sections independently of each other and in any order. These design
solutions increase functionality and facilitate operation of the trailer.
• The wall and top section locks are secured against accidental release.
4.3 HYDRAULIC TIPPING MECHANIZM
The hydraulic damper lifting mechanism is designed for automatic unloading of the trailer box by tilting the trailer load
to the back or to the side-ways. The hydraulic damper tipping system is fed with pressurized oil from the tractor hydraulic
system.
The hydraulic damper tipping system includes: coupling valve plug, hydraulic pipes, a single-acting hydraulic actuator,
connection and fixing components with a shut-off valve.
The diagram below shows the hydraulic tilting scheme of the damper load lifting system. Raising and lowering the
loading box is controlled by a joystick from the tractor hydraulic system.
4.0
GENERAL DESCRIPTION OF DESIGN AND FUNCTION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
Loading box hydraulic tipping system:
1 - hydraulic actuator;
2 - hydraulic lines;
3 - cut-off valve;
4 - cut-off valve control cable;
5 - coupling valve plug.
1. Tipping cylinder line
2. 2nd trailer tipping connection line
3. Tipping limiter valve (Optional)
4. Tipping line control valve (Optional)
4.0
GENERAL DESCRIPTION OF DESIGN AND FUNCTION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
4.4 ELECTRICAL SYSTEM (SIGNALLING AND WARNING)
The trailer electrical system is designed for 12 V DC supply from the towing tractor system.
See the diagram below for the scheme of the electrical system and trailer lighting scheme.
Trailer’s electrical system and lighting diagram
1 - 7-pin plug;
2 - 7-pin socket;
3 - right tail cluster lamp;
4 - left tail cluster lamp;
5 - turn indicator light bulbs;
6 - Stop brake light bulbs;
7 - tail parking light bulbs;
8 - registration plate light bulbs;
9 - front parking light bulb;
10 - outline marker lamp.
4.5 BRAKING SYSTEM
“CAS” Rigid drawbar series trailer is equipped with the following braking systems:
• Service brake: pneumatically or hydraulically actuated, two-line system (or single-line on request), operates all
wheels, controlled from the driver’s seat by pressing the tractor’s brake pedal;
• Parking brake: mechanically controlled by hand via a crank lever mechanism and a screw gear, located on the
left side of the trailer and operating the rear tandem axle wheels.
The service brake design; ensures automatic braking of trailer wheels if the pneumatic system is accidentally
decoupled between the trailer and the tractor.
4.0
GENERAL DESCRIPTION OF DESIGN AND FUNCTION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
Single-line hydraulic braking system diagram:
1 –hydraulic connector;
2 –hydraulic lines;
3 –safety valve;
4 –hydraulic accumulator;
5 –hydraulic actuator.
The single-line and double line pneumatic system diagrams are shown in Fig. A and B.
Fig. A. Single-line pneumatic braking system:
1 —1st trailer pneumatic connector;
2 —Air filter;
3 —Kontrol valve;
4 —Air tank;
5 —Water drain valve;
6 —Manual braking force control;
7 —Check connector; Kontrol valfı;
8 —Pneumatic membrane actuator,
9 —2nd trailer pneumatic connector.
4.0
GENERAL DESCRIPTION OF DESIGN AND FUNCTION
GÜRDAL RÖMORK SANAYİ VE TİCARET LİMİTED ŞİRKETİ
Fig. B. Dual-line pneumatic braking system:
1 —1st trailer pneumatic connector;
2 —Air filter;
3 —Kontrol valve;
4 —Air tank;
5 —Water drain valve;
6 —Manual braking force control;
7 —Check connector;
8 —Pneumatic membrane actuator,
9 —2nd trailer pneumatic connector.
Table of contents
