Jost JSK Series Bedienungsanleitung

Sensor JSK

EN Installation and operating instructions

Sensor JSK

EN Installation and operating instructions

2MUB 007 001 M01 (REV-C) 07/2020 Sensor JSK

Table of contents

1 Explanation of symbols................................................. 4

2 Safety information........................................................ 5

2.1 Safety information for operation.............................. 5

2.2 Safety information for installation............................ 6

3 Intended use................................................................. 7

4 Installation.................................................................... 8

4.1 List of components................................................... 8

4.2 Display....................................................................... 9

4.3 Connecting connection cable................................... 10

5 Operation...................................................................... 11

5.1 Self-diagnostic........................................................... 11

5.2 Operating indicator (fifth wheel coupling open/

ready for coupling).................................................... 11

5.3 Operating indicator (fifth wheel coupling closed/

ready to drive)........................................................... 11

5.4 Operating indicator (faults)...................................... 12

5.5 Sensor coupling process........................................... 13

5.6 Sensor uncoupling process....................................... 15

6 Troubleshooting............................................................ 17

6.1 General malfunctions............................................... 17

6.2 Malfunctions during coupling up.............................. 20

6.3 Malfunctions during uncoupling............................... 21

7 Maintenance................................................................. 22

7.1 Cleaning the sensor fifth wheel coupling................. 22

Sensor JSK MUB 007 001 M01 (REV-C) 07/2020 3

1 Explanation of symbols

WARNING!

Means that death, serious physical injury or significant

material damage can occur if the relevant safety instruc-

tions are not followed.

ATTENTION!

Means that slight physical injury or material damage

can occur if the relevant safety instructions are not fol-

lowed.

ADVICE!

Contains additional important information.

4MUB 007 001 M01 (REV-C) 07/2020 Sensor JSK

2 Safety information

ATTENTION!

The safety information is compiled in this section.

Where the user or others are in danger, the safety

instructions are repeated in the individual sections and

highlighted with the danger warning sign shown here.

The relevant safety regulations in your country (for example Health

& Safety at Work) apply for working with fifth wheel couplings,

tractor units and semi-trailers. The appropriate safety instructions

in the operating manual for the tractor unit and the semitrailer are

applicable and must be followed.

The following safety information applies to the installation and

mounting work. Safety instructions directly linked to the activity

are listed again individually.

2.1 Safety information for operation

The sensor coupling may only be used by authorised persons.

Only use the fifth wheel coupling and skid plate on the semi-

trailer if they are in perfect technical condition.

Ensure that the material wear does not exceed the wear lim-

its for the lock jaw and the king pin set out in the installation

and operating instructions for class G50 JOST fifth wheel cou-

plings. Otherwise this will result in the king pin sensor being

damaged.

Comply with the relevant safety regulations when connecting

a semi-trailer, for example the Health and Safety at Work Reg-

ulations.

Before starting any journey and each time couple a trailer,

check that the locking mechanism is in good condition and

that it is properly secure. Only drive the vehicle with the lock-

ing mechanism locked and secured.

WARNING!

If the fifth wheel coupling is not correctly closed and

secured, the semi-trailer can work loose. This can cause

an accident and injure you and other people. Always

check that the fifth wheel coupling is in good condition

and locked after connecting a semi-trailer. A pre-depar-

ture inspection is always to be performed, even if the

display indicates “Fifth wheel coupling closed (green)”.

The sensor coupling is only an assistance function which

helps you to couple and uncouple trailers.

Sensor JSK MUB 007 001 M01 (REV-C) 07/2020 5

2 Safety information

2.2 Safety information for installation

The assembly work may only be completed by authorised

specialists.

Follow the safety instructions for working on the vehicle’s

electrical system as set out in the assembly and modification

instructions issued by the vehicle’s manufacturer.

The battery must be disconnected before starting any work

on the vehicle’s electrical system.

The earth return of the electrical consumers is not through

the chassis but through the cabling via the earth post on the

fuse holder.

Install all the cables so that they cannot be crushed or chafed.

Do not fasten cables to brake lines.

Route cables at an adequate distance from heat sources, such

as the exhaust system.

When installing the cables ensure that there is a sufficient

length of cable between the fifth wheel coupling and the

vehicle body.

Install the electronic display equipment within the view of the

driver.

Make the connection for the power supply to the sensor cou-

pling at a point approved by the vehicle manufacturer.

The sensor coupling must be protected by a conventional 1 A

automotive fuse.

Follow the ADR / GGVS regulations and national legislation

and regulations relating to ADR / GGVS vehicles.

The connection may only be made using an ADR extension

cable on ADR / GGVS vehicles. This must be specified in the

order.

6MUB 007 001 M01 (REV-C) 07/2020 Sensor JSK

3 Intended use

ATTENTION!

The JOST sensor coupling is only an assistance function

which helps you to couple and uncouple trailers. The

pre-departure inspection mentioned in section 2.1 must

therefore be conducted in full and is not replaced or

rendered unnecessary by the sensor coupling.

The JOST sensor coupling provides the driver with information

relating to the locking status of the fifth wheel coupling.

The individual components must be used only in combination with

the specially intended JOST fifth wheel coupling.

Information on this subject is provided in the sales documentation

supplied by JOST.

Modifications of any kind will render both the warranty and the

design approval void and therefore also cancel the vehicle's oper-

ating licence.

The sensor coupling display can be shown on the JOST display or

on a display integrated in the instrument panel of the vehicle.

JSKC/38

Sensor coupling with 3 sensors.

JSKC/48

Sensor coupling with 2 sensors.

The operational status of the fifth wheel coupling is shown with

the following symbols (under ISO 2575).

Open (red) Closed (green)

Closed (red) Malfunction

(red)

Level reached

(only for variant

with 3 sensors)

The JOST display is described below. The descriptions apply accord-

ingly to the display on the instrument panel.

Sensor JSK MUB 007 001 M01 (REV-C) 07/2020 7

4 Installation

4.1 List of components

JSKC/02

1Display

2Plug (display)

3Connection cable

4Plug (fifth wheel coupling)

5* Semi-trailer sensor, only with sensor coupling model with 3 sensors

6Locking sensor, switch magnet

7King pin sensor

8Power supply connection

8MUB 007 001 M01 (REV-C) 07/2020 Sensor JSK

4 Installation

4.2 Display

JSKC/28

ADVICE!

Install the display (1) in the driver’s field of vision. The

display's installation foot has an adhesive surface and

can be affixed into position. The affixing area in the vehi-

cle must be dry and free of dust and grease. Alterna-

tively the installation foot may be screwed into position.

There are markings on the underside of the foot to make

it easier to install it.

Sensor JSK MUB 007 001 M01 (REV-C) 07/2020 9

4 Installation

4.3 Connecting connection cable

2Plug (display)

3Connection cable

4Plug (fifth wheel coupling)

8Power supply connection

– Black cable

Terminal 31 (negative) connection

– White cable

Terminal 15 connection (positive when ignition ON)

ATTENTION!

The safety information set out in section 2.2 must be

observed to prevent damaging the vehicle's electrical

system.

Connect the plug (2) to the display.

Route the power supply connection (8) to the point approved

by the vehicle manufacturer and connected there (see con-

nection diagram in section 4.1).

ATTENTION!

In order to avoid damage to the vehicle’s electrical and

sensor systems in the case of a short circuit, a commer-

cially available 1 A blade-type fuse must be installed in

the connection supply line (8). When making the con-

nection ensure that the display is suitable for the volt-

age of the vehicle (12 V or 24 V). Further information is

provided in the sales documentation.

Route the connection cable (3) to the fifth wheel coupling

and connect the plug (4) to the existing mating plug. The plug

must be locked with the yellow slide.

10 MUB 007 001 M01 (REV-C) 07/2020 Sensor JSK

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