Seat Belt Retractor, Checking Locking Function

Seat Belts, Inspecting

CAUTION!
After every accident the seat belt system must be inspected systematically! If damage is determined when inspecting the check points, customer must be informed regarding necessity of changing belts.

Check points:

• Belt Webbing, Checking

• Retractor, Checking Locking Function

• Belt Latch, Inspecting Visually

• Belt Latch, Checking Function

• Belt Guide Rings and Locking Tongue, Checking

• Securing Components and Anchorage Points, Checking

• If customer refuses to have a damaged seat belt replaced, appropriate note should be made in service book.

Seat Belt Retractor, Checking Locking Function

The belt retractor has two locking functions.

• The first locking function is initiated by belt being jerked out of the retractor (belt extraction acceleration).

- Pull belt webbing out of retractor with a firm jerk.

• No locking function - replace compete seat belt with belt latch.

• If difficulties are experienced when pulling out or retracting belt, first check whether position of retractor has been altered.

• The second locking function is initiated by change in vehicle velocity (vehicle-dependent locking function).

Checking

- Fasten seat belt.

- Accelerate vehicle to 12 mph (20 km/h) and then perform a full braking maneuver with foot brake.

• If the locking mechanism does not lock the seat belt during the braking maneuver, the complete seat belt with safety belt latch must be replaced.

CAUTION!
For safety reasons, road test should be carried out on traffic-free stretch to ensure that other motorists/pedestrians etc. are not endangered.