Hi please take a look at my diagram and share any advice you have. Thanks
pietrucker:
Hi please take a look at my diagram and share any advice you have. Thanks
I could answer your question . . . but not until you answer mine.
Your load is restrained by your straps from moving in any direction.
Could you please complete your mathematical puzzle by telling us the friction coefficient between the load & the surface it is placed upon?
the loading bay is constructed from wood and the load has wheels eg a scissor lift
100% of the load for forward movement needs to be secured, was that what you meant ?
pietrucker:
the loading bay is constructed from wood and the load has wheels eg a scissor lift
Does the lift have a working handbrake?
rog - there’s no brake
bald bloke - yes that’s what I’m getting at, thanks.
bald bloke:
100% of the load for forward movement needs to be secured, was that what you meant ?
Why would anyone want to secure a load from moving forward less than100% 
If you take your webbing straps from a lashing point to the load then back to an adjacent lashing point & do this at all four corners you will fulfil the requirements.
Mind you, I’m only a know-nothing old ■■■■ without benefit of university degree or dcpc. 
4whatitsworth:
bald bloke:
100% of the load for forward movement needs to be secured, was that what you meant ?Why would anyone want to secure a load from moving forward less than100%
They wouldn’t.
i wouldnt bother, the curtains will hold it 
I’m presuming this is an over head view or if your looking inside the back of a trailer the load appears to be floating in mid air which are the trickiest to secure.
Anyway its a trick question because it would be bad practice to secure a 3000kg scissor lift to 1000kg anchor points by straps in this way.
Ideally it should be block loaded against the headboard as it has wheels (never rely on the brakes when its been on a construction site).
If this isn’t possible due to front axle load limits use chains to secure the scissor lift and secure to a safe point on the chassis ideally one that will stop the chains slipping forward, consider chocking the wheels as well.
I always chucked a single strap over the scissor lifts middle as well always had this fear that they would go up on their own, didn’t really add to load security just that I knew if I looked in my mirror and the strap was missing somethings gone a bit wrong.
Just guessin as only did it for 10 years and don’t deal in percentages more real world scenarios.
Retired Old ■■■■:
If you take your webbing straps from a lashing point to the load then back to an adjacent lashing point & do this at all four corners you will fulfil the requirements.
Mind you, I’m only a know-nothing old ■■■■ without benefit of university degree or dcpc.
Did no-one else think this is OK, or am I missing something?
I would want something solid in front of it, If that wasn’t possible then a baulk of timber across the bed and secured by a straup - then all four corners.
pietrucker:
Hi please take a look at my diagram and share any advice you have. Thanks
Without something over the top of the load i think it would be impossible to secure the load as per your diagram. The strapping would usually go (as in this case) diagonally to the opposite lashing point and wouldn’t be across the corners as in your diagram.
…hold on just seen other posts, load has wheels and maybe lashing points on load, and you want to stop forward movement? Then the load needs to be moved forward against the bulkhead. Secured to the bulkhead, and also down to the floor /bed. If no bulkhead is available then it needs chocks,probably secured to the floor to stop movement from the wheels.
Yes this is a birds eye view of the load, I have no chocks and can’t run the load upto the headboard due to the winch assembly being in the way and axle overloading. As for trick question, what if I said this is a 7.5t truck with a maximum payload of 3000 kg and lashing points rated at 1000kg. According to my gaffer the lashing points are sufficient because there are three down each side and that gives a total lashing capacity of double the permissable load however if the load to be carried is one item then it appears to me that’s unsafe. Surely the maximum single item that can be carried on this truck is 2000kgs?
The vehicle can take the load but the vital question is how to secure this particular load. Dipper Dave offers excellent advice.
I’m with Dipper_Dave on this.
I’ve got a Phd in Physics, which involves a lot of math (cue switchlogic).
Your 3000kg load could easily become as much as a 30 000kg+ of FORCE (note . . force!) during heavy braking, an emergency stop perhaps, or (shudders) a head on collision.
Your puny straps will not stop it moving & it will laugh at your pathetic headboard as it smashes straight through your cab.
Tell the boss it’s alright his way, provided his missus & kids are in the cab with you.
Failing that, do as Dipper_Dave suggests. Chock those wheels & use chains to tie it down.
You’d need 6 straps per scissor. Four pulling backwards (3000kg divided by 4= 750kg per strap
Hopefully in the event of heavy braking these would sufficiently take the strain without overloading each anchor point.
Then two straps pulling the scissor forwards, remember YOU have full control of how much strain these two straps take as your in charge of the accelerator thus the force implied on these two straps.
By the sounds of it your kit isn’t up to the job mate.
pietrucker:
Surely the maximum single item that can be carried on this truck is 2000kgs?
If the payload is 3000kg then you can carry 3000kg. How you restrain this much weight is a different matter.
Chas:
I’m with Dipper_Dave on this.I’ve got a Phd in Physics, which involves a lot of math (cue switchlogic).
Your 3000kg load could easily become as much as a 30 000kg+ of FORCE (note . . force!) during heavy braking, an emergency stop perhaps, or (shudders) a head on collision.
Your puny straps will not stop it moving & it will laugh at your pathetic headboard as it smashes straight through your cab.
Tell the boss it’s alright his way, provided his missus & kids are in the cab with you.
Failing that, do as Dipper_Dave suggests. Chock those wheels & use chains to tie it down.
+1