313174 - Hitch Westfalia - Free user manual and instructions

Product type	Detachable ball hitch
Brand	Westfalia
Model	313174
Compatible vehicle	Mercedes Vaneo (type NCV1)
Max D value	7.4 kN
Max nose weight	75 kg
Weight of the hitch	16.6 kg
Class	A50-X
Main functions	Towing trailers with ball coupling; use of approved load carriers on the ball
Maintenance	Clean and grease the ball regularly; retighten screws after 1000 km
Lubrication	Grease bearings, sliding surfaces and balls with resin-free grease; use graphite for the lock
Safety	Check locking before each trip; ball diameter ≥ 49.0 mm; do not use if any check point fails
Spare parts	2 keys supplied; note key number for later order
Repairability	Only the manufacturer is authorized to repair or disassemble the ball rod

Frequently Asked Questions - 313174 Westfalia

How to check if the ball hitch is correctly locked?

Before each trip, check these 4 points: the green mark on the thumbwheel coincides with the green area on the ball, the thumbwheel is against the ball (no gap), the lock is closed and key removed, and the ball does not move in the receiving tube. If any point is missing, repeat the assembly.

What is the maximum D value of this hitch?

The maximum D value is 7.4 kN. This value is used to determine the permitted towing capacity based on the vehicle's gross train weight.

Can I use a bike rack on this hitch?

Yes, provided the load carrier is approved for mounting on a ball hitch. Follow the manufacturer's instructions and the nose weight limits (max 75 kg).

How to install the detachable ball hitch?

Remove the plug from the receiving tube. Ensure the ball is preloaded (lever against the ball, thumbwheel at 6 mm). Insert the ball from the bottom into the tube and push upwards. Locking occurs automatically. Close the lock and remove the key.

What to do if the ball hitch is too worn?

As soon as the ball diameter reaches 49.0 mm or less at any point, the hitch must no longer be used for safety reasons. Replace the ball according to the manufacturer's instructions.

How to maintain the hitch?

Clean and grease the ball regularly with resin-free grease. Every 1000 km, retighten the mounting screws to the prescribed torque. For the lock, use only graphite. In case of prolonged use without a trailer, relax the mechanism (locked position) to avoid stressing the springs.

Does the hitch affect the parking aid?

Yes, hitch components may be within the sensor area. If the vehicle is equipped with a parking aid, adjust the detection zone or disable the aid. Detachable balls do not have this problem when not in operating position.

What is the weight added by the hitch?

The vehicle's unladen weight increases by 16.6 kg after installing the hitch.

Can I remove the ball hitch without tools?

Yes, removal is manual. Open the lock, hold the ball, pull the thumbwheel sideways and turn it fully in the direction of the arrow, then remove the ball from the bottom. Never use tools to avoid damaging the mechanism.

Where to find the key number in case of loss?

The key number should be noted during first use. It is recommended to keep it safe for possible ordering of additional keys from the manufacturer.

USER MANUAL 313174 Westfalia

Approval no. as per Guideline 94/20/EC: e13 00-0834

Class:A50-X Model:313 164

Technical data: Maximum D-value: 7,4 kN

Maximum nose weight: 75 kg

Area of application: Vehicle manufacturer: Mercedes Benz

Model: Vaneo

Model designation: NCV1

General information:

The vehicle manufacturer's specifications regarding trailer load and nose weight are decisive for driving, and the values specified for the towing hitch must not be exceeded.

Formula for D-value: load [kg] x vehicle total weight [kg]trailer load [kg] + vehicle total weight [kg] × 9,811000 = D[kN]

The towing hitch serves for towing trailers fitted with ball couplings and for use with load carriers approved for attachment to the towing hitch. Any use other than that specified is prohibited. Driving with a trailer must be adapted to the road conditions. The vehicle's handling is affected when a trailer is being towed. Follow the vehicle manufacturer's instructions.

If vehicles are fitted with a Parking Distance Control (PDC) system malfunctioning of the system can occur after tow bar installation since the parts (ball bar, ball coupling) could be located in the detection area of the sensors. In this case, the detection area should be readjusted or the PDC deactivated. Malfunctioning is not expected when using tow bars with detachable or pivoted ball bars if the ball bar is removed from its operating position.

The fixing points specified as standard must be observed.

National guidelines concerning official approval of auxiliaries must be observed.

These installation and operating instructions must be enclosed with the vehicle papers.

Installation instructions:

The towing hitch is a safety component and must only be installed by qualified personnel.

Any alteration or conversion to the towing hitch is prohibited, and would lead to cancellation of design certification.

Remove insulating compound and underseal from vehicle (if present) in the area of the mating surfaces of the towing hitch. Seal any bare bodywork and bores with anti-corrosive paint.

Operating instructions:

Again tighten all securing bolts of the towing hitch after approx. 1000 trailer km, observing specified tightening torques.

The towing hitch must be kept clean and greased. However, if a stabilisation device, e.g. Westfalia "SSK", is used, the towing hitch must be free from grease. Follow the instructions in the relevant operating instructions.

As soon as the towing hitch diameter is 49.0mm or less at any point, it must no longer be used for safety reasons.

After the towing hitch is fitted, the empty weight of the vehicle increases by 16,6 kg.

Operating instructions for detachable ball rod

Important:

Each time before towing a trailer, check that the ball rod is properly locked (see A. 3 below)!

Do not release unless the trailer is hitched up!

When driver without a trailer, the ball rod must be taken off and the plug ALWAYS inserted in the mounting tube!

A. INSTALLATION

1. Remove the plug from the mounting tube.

When the ball rod is taken out of the boot it is normally in the "pretensioned state". You can recognise this from the fact that the release lever (see sketch) is resting against the ball rod. There is a gap of about 6 mm between handwheel and ball rod (see sketch) and the "red" marking of the handwheel is in the "green" area of the ball rod.

Please note that the ball rod can be inserted only in this state!

Should, for whatever reason, the locking mechanism of the ball rod have been released before installation - you can recognise this from the fact that there is a gap of about 5mm between release lever and ball rod (see sketch), the "green" marking of the handwheel is aligned with the "green" area of the ball rod and the handwheel (see sketch) is resting against the ball rod - the release mechanism has to be pretensioned as follows:

Insert the key, open the lock and then pull out the handwheel to the side and turn it in the direction of the arrow as far as the stop. The release lever will then engage and, after the handwheel is released, the locking mechanism remains in the pretensioned position.

1. To install the ball rod, insert it into the mounting tube from below and push it up.

2. The locking operation is performed automatically in this case.

3. Do not hold your hands in the area of the handwheel.
4. Close the lock and withdraw the key.
5. Press the cap onto the lock.

3. For safety reasons:

Always check whether the ball rod is properly locked and secured. You can recognise this from the following characteristics:

"Green" marking of the handwheel is aligned with the "green" area of the ball rod.
- Handwheel is resting against ball rod (no gap).
- Lock closed and key withdrawn (handwheel cannot be pulled out).
- Ball rod must be fully inserted in the mounting tube and be tight (check by shaking).

If the check of all 4 characteristics is not satisfactory, the installation procedure should be repeated.

Even if only one of the characteristics is not met, the towing device must not be used. In this case, contact the manufacturer.

B. REMOVAL

1. Pull the cap off the lock and press cap onto the handle of the key.

Open lock with the key (key cannot be withdrawn when lock is open!)

1. Hold ball rod tight, pull out handwheel at the side and turn it against the force of the spring in the direction of the arrow as far as the stop.

2. Remove ball rod downward out of the mounting tube.

3. The handwheel can then be released; it then automatically engages in the tensioned position.

4. Please also pay attention to the symbols on the handwheel and on the enclosed sketch "Detachable ball rod".

5. Stow the ball rod in the boot in a safe place and protected against dirt.

As already mentioned, the key cannot be withdrawn in the tensioned position.

Insert plug into the mounting tube!

C. IMPORTANT POINTS TO NOTE!

The ball rod can be easily installed and removed with the normal force of your hands.

Please never use any sort of aids or tools etc. as this might result in damage to the mechanism.

Repairs and dismantling of the detachable ball rod must be performed only by us as the manufacturer all cases.

No modification may be made to the entire towing device.

Note the key number should it be necessary to reorder the key.

Affix the enclosed information plate to the car close to the mounting tube or on the inside of the boot at a clearly visible point.

D.MAINTENANCEINSTRUCTIONS

1. The ball rod and the mounting tube must always be kept clean to ensure proper operation of the coupling ball with bracket.
2. Ensure regular care of the mechanical parts.

Grease or oil the bearing points, friction surfaces and balls with resin-free grease or oil. Treat lock only with graphite.

1. If the detachable ball rod is not used for a lengthy period, the locking mechanism should always be relieved of stress (locked position) in order to avoid excessive stress on the spring elements.

Push the release lever forward into the locked position.

1. The ball rod must be taken off and the plug inserted when cleaning the car with the steam jet cleaner.

(The ball rod must not be cleaned with a steam cleaner)

Dismountable coupling hitch (automatic)

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D. EDLIKEHOLDSFORSKRIFTER

Available spare parts for towing hitch

Kataloyo T wv diauoeiupw avtaaaktkuv nC opaipikns kepaaans 2eusns me

Two keys belong to the removable towball. Note and store the key number in case of eventual re-ordering.

GR Iqoox

Tn 1oynog afoe opag-n -epaan-2.

H Figyelem

GB - The clearance specified in appendix VII, diagram 30 of guideline 94/20/EG must be guaranteed.

GB-at laden weight of the vehicle

GR - VIA TO ETHTTEITTO HIKTO BAPOC TOU OXHuaToc