The Hastings curtain-sider on a Monday morning
Priya runs a two-truck produce operation in Hastings. Truck 2 is a 2013 rigid curtain-sider, GLM 20,500 kg, on palletised squash. On Monday morning her driver does the walk-around and finds four things:
- the certificate of fitness (CoF) label expired on Saturday, two days ago;
- the left steer tyre has a 40 mm cut deep enough to show cord;
- the load is 14 pallets stacked 2.4 m high, held by one crossed pair of 25 mm strops over the top;
- the low-air-pressure warning buzzer sounds for about 90 seconds after startup and the pressure gauge climbs slowly.
The driver has a 7 am delivery booked in Napier, 20 km away, and argues that it is only 20 kays, and that he will get it booked in for a CoF next week. Priya has no mechanical training and no spare truck. The driver holds a full Class 2 licence.
1. List the four issues and state which of them legally prohibit the truck from being driven on the road today, with reasons.
Read the worked answer
- CoF expired Saturday. A heavy vehicle must hold a current certificate of fitness. Once it lapses the vehicle is uncertified and cannot be used in service. This alone is a stop.
- Steer tyre cut to the cord. A cut deep enough to expose cord is a structural failure. The tyre is unroadworthy and must be replaced, not patched or swapped to a trailer. Stop.
- Load restraint. One crossed pair of 25 mm strops over a 2.4 m stack of 14 pallets is not rated restraint for that mass and height. The stack can slide forward under braking or topple sideways. The truck must not move until it is re-secured with rated restraints. Stop.
- Slow air build with a 90-second buzzer. This points to a leak or a weak compressor. It should be investigated before the vehicle is used, because low air pressure means degraded braking.
Even one of the first three makes the Napier run illegal. All three are present.
2. What is the CoF situation and exactly what must happen before Truck 2 carries another load?
Read the worked answer
Truck 2's CoF lapsed on Saturday, so on Monday it holds no valid certificate of fitness and must not be driven on a road in service - not even 20 km. The sequence is: repair first, then inspect, then use.
Concretely, the steer tyre and the air system need to be fixed before presentation, because the truck will fail a CoF on either. It then goes to an approved inspecting organisation for a new CoF, and the operator should check at the same time that registration and the RUC licence are current, because an expired CoF often sits alongside other lapsed paperwork. If the truck has to be moved to a workshop, Priya should ask the inspecting organisation about the limited provision for driving an uncertified vehicle directly to a repair or inspection point - that provision does not extend to a revenue delivery. She should also put both trucks' CoF dates on a calendar with a two-week buffer; a six-monthly CoF expires quietly and there is no warning letter.
3. How should Priya answer the only 20 kays argument, and what else in the scenario would stop the trip even if the truck were roadworthy?
Read the worked answer
The argument fails twice. First, distance is irrelevant: the CoF, tyre and restraint rules apply from the moment the vehicle moves on a road, and 20 km is still 20 km of exposure. Second, a short run is exactly where there is no margin - a steer tyre failure at 80 km/h or a pallet stack shifting under braking does not care that the destination was close.
As the operator, Priya has the duty to ensure the vehicle is fit for use and the driver is licensed and competent. Instructing or permitting the trip is her exposure under the Health and Safety at Work Act, not only the driver's. She should ring the Napier customer, rebook, and record the decision and the reasons in the maintenance log.
There is a fourth blocker she may not have spotted: the driver holds a Class 2 licence and Truck 2 is a 20,500 kg rigid, which is a Class 3 vehicle. Even with a fresh CoF, a new tyre and a properly restrained load, that driver could not legally take it.