Sunday, 27 November 2011

BLOG 3 VEHICLE SAEFTY SYSTEMS WS

Warrant of Fitness
Work sheet one

Make of vehicle: Mitsubishi
Model: Lancer
Year: 2008

Make a list of nine (9) safety components found in your vehicle.

Seat Belts
ABS
Air Bags
Hand Brake
Safety Glass Windows
Kiddy lock
Head restraints
Mirrors
Brakes


SEATBELT INSPECTION and DEFINITIONS.

LTSA regulations:

The regulations for Seatbelts are contained in the Land Transport Rule 32011 – Seatbelts and Seatbelt Anchorages.
From this ‘Rule’ the inspection criteria for Warrant of Fitness Inspections makes up the VIRM. This is the inspection manual for all aspects of Vehicle Inspections.

Inspection Criteria:

The Inspection items detailed overleaf are a summary for the requirements of the VIRM.

EXPLANATIONS:

Tongue and Buckle Assembly:

This is the locking mechanism for the securing the seatbelt. It is vital that the locking mechanism is secure and operating correctly.

Retractor:

The retractor mechanism is often hidden out of site inside the body structure of the vehicle.
The retractor automatically recoils the seatbelt when it is disengaged. It is a mechanical device and can wear out over time. It is very important that the seatbelt webbing fully retracts continuously in a smooth operation.
The locking mechanism that prevents occupants from moving forward violently in an accident or severe braking is located inside the retractor unit.

Webbing:

Seatbelt webbing is a special polyester weave manufactured and tested to a specific International Standard for use in motor vehicles.
Damage to the webbing can dramatically reduce the effectiveness of the seatbelt. Small cuts, frayed edges and holes in the webbing can cause it to tear when put under load.
Badly fade webbing, caused by sunburn and UV exposure, can have its strength reduced by up to 5o%.

Anchorages:

The seatbelt unit must be securely fixed to the vehicle. Loose fittings, rust or insecure mountings will fail under load.

Accident Dynamics:

In a frontal impact accident at 50 kph, the vehicle occupants’ are propelled forward against
the seatbelt restraint system.
The force applied to the restraint system is equal to 30 times the occupants’ weight. At 70 kph, this force is 60 times the body weight.
The force is applied in an instant, and any defective parts of the seatbelt assembly or anchorages could result in failure, causing occupants’ to be propelled forward into the
Steering wheel, dashboard or through the windscreen
It is vital that seatbelts are inspected regularly for damage and replaced when found to be defective.

RESTRAINT SYSTEMS FRONT and REAR

WORK SHEET ONE – FRONT

Make: Mitsubishi
Model: Lancer
Year: 2008
Body Type: Station Wagon
Vehicle class:
Type of Seat Belts: Lap Diagonal
(Front) Number: R2
(Rear) Number: R2
Pretension fitted: Yes


Safety check List

TONGUE and BUCKLE ASSEMBLY

Check the engagement of tongue and buckle.            Pass           
The tongue and buckle should securely latch            Pass           
together with very little free play.

The tongue should eject actively when released.            Pass           

There should be no visible cracks on the buckle            Pass           
And the buckle cover must be intact.

The tongue should have no metal deformation            Pass           
Webbing marks or visible cracks on metal or
Plastic sections.

RETRACTOR
Pull the belt out as far as it will go, then release it.   Pass

The belt should return all the way to the retractor            Pass           
Without sticking, gripping or stalling.

The retractor should lock if the webbing is pulled            Pass
Out suddenly.

WEBBING

The webbing should be securely attached to its end fittings and displaying no stretching or pulled stitching. Pass

The webbing should be flat throughout its entire length

Look for plastic burn marks, frayed stitching and any signs of rippling.

Look for fading – exposure to sunlight can reduce the strength by up to 50%.

ANCHORAGE
Ensure all anchorages are free from corrosion and are securely fastened to the vehicle structure.

All mounting points should not show any signs deformation.

Safety check List

TONGUE and BUCKLE ASSEMBLY

Check the engagement of tongue and buckle.            Pass           

The tongue and buckle should securely latch            Pass           
together with very little free play.

The tongue should eject actively when released.            Pass           
There should be no visible cracks on the buckle            Pass           
and the buckle cover must be intact.

The tongue should have no metal deformation,            Pass           
Webbing marks or visible cracks on metal or
Plastic sections.

RETRACTOR

Pull the belt out as far as it will go, then release it.            Pass           

The belt should return all the way to the retractor            Pass           
Without sticking, gripping or stalling.

The retractor should lock if the webbing is pulled            Pass           
out suddenly.

WEBBING

The webbing should be securely attached to its end            Pass           
fittings displaying no stretching or pulled stitching.

The webbing should be flat throughout its entire length            Pass           

Look for plastic burn marks, frayed stitching and any  Pass           
Signs of rippling.

Look for fading – exposure to sunlight can reduce the  Pass           
strength by up to 50%.

ANCHORAGE

Ensure all anchorages are free from corrosion and are securely fastened to the vehicle structure. Pass           

All mounting points should not show any signs deformation. Pass


Supplementary Restraint System

Seat Belt Types:           
L/D = Lap Diagonal
L = Lap
D = Diagonal

Air Bags:           

S.R.S.            = Supplementary Restraint System
A.B = Air Bag

Type of Seat Belts

Front (type): L/D Rear (type): L/D

AIR BAGS: (Number)

Front: 2
Rear: 2
Side: 4

Dash Warning Light Working: Yes

Warrant of Fitness

WOF Check Sheet

Make: Mitsubishi
Model: Lancer
Odometer reading: 154369
Year: 2008
Year first registered NZ:
Registration No: Unitec
WOF expiry date:

CHECK AREAS.

Area and Rule ID #

Vehicle Identification.
Vin and chassis number: Good

Vehicle Exterior
Structure: Good

Vehicle Structure.
External projections: Good

Lighting
Headlamps: Good
Front and rear fog lights: Good
Cornering lamps: Good
Daytime running lamps: Good
Direction indicator lamps (front): Good
Direction indicator lights (rear): Good
Forward-facing position lamps: Good

Rearward-facing position lamps: Good
Stop lamps: Good
High-mounted stop lamps: Good
Rear registration plate lamp: Good
Rear reflectors: Good
Reversing lamps: Good
Non-specified lamps: Good

Vision

Windscreen: Good
Other glazing: Good
Sun visors: Good
Wipers: Good
Washers: Good
Rear view mirrors: Good

Entrance and Exit

Door and hinged panel retention system: Good

Vehicle Interior

Seats and seat anchorages: Good
Head restraints: Good
Seatbelts and seat belt anchorages: Good
Airbags: Good
Interior impact: Good
Speedometer: Good
Audible warning device: Good

Brakes

Use brake roller test from ‘Brake Task’ for this check if available

Components:

ABS self check: Good

Service brake performance
Percentage or recordings for each wheel

L/F: 4.02 KN
R/F: 4.42 KN
L/R: 2.31 KN
R/R: 2.46 KN

Imbalance: 9% (Front)
Imbalance: 7% (Rear)
Service brake balance: Good

Parking brake performance:
Percentage or recordings for Each wheel

L: 1.58KN
R: 1.70KN
Imbalance: 6%


Steering and Suspension

Raise vehicle for this check

Steering mechanism: Good
Suspension mechanism: Good

Tyres, Wheels and Hubs
Tyre condition: Good
Tread depth: Good
Left front: 5mm
Right front: 5mm
Left rear: 5mm
Right rear: 5mm
Spare wheel security: Good
Space-saver tyre label: Good
Wheels: Good
Hubs and axles: Good
Mudguards: Good

Exhaust

Raise vehicle for this check

Exhaust System: Good


Towing Connections

Towing connection: Good

Miscellaneous Items

Engine and drive train: Good
Fuel tank and fuel lines: Good

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