IF U CONNECT THE FRONT END TRACTOR UNIT UPTO THE TRAILOR ,AND WHO EVER DROPPED THE TRAILOR COULDN,T BE BOTHERED TO PUT THE PARK BRAKE ON,WHEN YOU CONNECT THE RED AIR LINE UP TO THE TRAILOR ,THIS RELEASES THE BACK BRAKES(SPRING),PUTTING ALL THE TRAILER WEIGHT ONTO THE TRACTOR UNIT SUSPENSION,THUS GIVING A QUICK PINCING MOVEMENT,THIS HAPPENED TO ME ,BUT THE TRANSPORT MANAGER SAYS IT CAN,T HAPPEN!!! I SAY IT CAN .!!! (I SHOULD MENTION THE TRANSPORT MANAGER HAS NEVER DRIVEN A LORRY OR DROPPED A TRAILER ,BUT TALKS AS IF HE,S THE TOP DOG,FOUND OUT LAST WEEK HE USED TO BE A MILK MAN,COULD BE A CASE OF JOBS FOR THE BOYS) 
simple answer to this question is…
ALWAYS check that the park brake has been applied on the trailer BEFORE you reverse under it.
maestegboy:
IF U CONNECT THE FRONT END TRACTOR UNIT UP TO THE TRAILER AND WHOEVER DROPPED THE TRAILER COULDN’T BE BOTHERED TO PUT THE PARK BRAKE ON. . .
Stop right there. . . It is YOUR responsibility to check that the trailer parking brake is on BEFORE you even try to couple up. NO EXCUSES.
Any idiot could have walked past that uncoupled trailer at any time and pushed the brake off.
.
also a few ’ ’ ’ ’ hth 
maestegboy:
IF U CONNECT THE FRONT END TRACTOR UNIT UPTO THE TRAILOR ,AND WHO EVER DROPPED THE TRAILOR COULDN,T BE BOTHERED TO PUT THE PARK BRAKE ON,WHEN YOU CONNECT THE RED AIR LINE UP TO THE TRAILOR ,THIS RELEASES THE BACK BRAKES(SPRING),PUTTING ALL THE TRAILER WEIGHT ONTO THE TRACTOR UNIT SUSPENSION,THUS GIVING A QUICK PINCING MOVEMENT,THIS HAPPENED TO ME ,BUT THE TRANSPORT MANAGER SAYS IT CAN,T HAPPEN!!! I SAY IT CAN .!!! (I SHOULD MENTION THE TRANSPORT MANAGER HAS NEVER DRIVEN A LORRY OR DROPPED A TRAILER ,BUT TALKS AS IF HE,S THE TOP DOG,FOUND OUT LAST WEEK HE USED TO BE A MILK MAN,COULD BE A CASE OF JOBS FOR THE BOYS)
is someone having a carlzberg moment … 
Hang on, didn’t we have this thread a few weeks ago? Some guy nearly got crushed or something when he picked up a trailer (trailor) that they hadn’t checked the brake was set?
Even spells trailer as trailor 
probably the same geezer wot carnt spelll , wee alll ave hour carnt spel momunts but you shuudunt laff cos it snot funny yu now .
my spellin znot purfect but i manage like . my money is still on a carlzberg moment … 
Saratoga:
Hang on, didn’t we have this thread a few weeks ago? Some guy nearly got crushed or something when he picked up a trailer (trailor) that they hadn’t checked the brake was set?Even spells trailer as trailor
Thanks for that Bowser 
FYI I have a spell checker installed here in Firefox because I often get the i before e bit mixed up as well
Saratoga:
Thanks for that BowserFYI I have a spell checker installed here in Firefox because I often get the i before e bit mixed up as well
that i before the e crap gets me everytime , EVERYTIME .
maybe read this wrong but surely if you hook up to a trailer, regardless if the trailer brake is off the trailer cannot move further towards the unit and crush you on the catwalk. The pin is locked in the fifth wheel. if the unit’s brakes are on it will hold the trailer (unless the unit’s brakes are goosed)
That gap between the unit and trailer cannot get any smaller.
or am I mistaken
^^^^ this, as long as the unit handbrake is on and providing your not split coupling what’s your problem.
C10HOO:
That gap between the unit and trailer cannot get any smaller.
or am I mistaken
Dunno about that, every Monday it feels like it gets smaller.
It’s probably them bloody pixies that shrink my trousers and belt at the same time!
I cant really work out what your trying to say, what does pincing mean?
I think he means the gap between the cab and trailer reducing and crushing the operator against the side of the cab.
I would have thought the only time that could happen would be if the unit and trailer are at different angles either sideways or up/down
maestegboy:
IF U CONNECT THE FRONT END TRACTOR UNIT UPTO THE TRAILOR ,AND WHO EVER DROPPED THE TRAILOR COULDN,T BE BOTHERED TO PUT THE PARK BRAKE ON,WHEN YOU CONNECT THE RED AIR LINE UP TO THE TRAILOR ,THIS RELEASES THE BACK BRAKES(SPRING),PUTTING ALL THE TRAILER WEIGHT ONTO THE TRACTOR UNIT SUSPENSION,THUS GIVING A QUICK PINCING MOVEMENT,THIS HAPPENED TO ME ,BUT THE TRANSPORT MANAGER SAYS IT CAN,T HAPPEN!!! I SAY IT CAN .!!! (I SHOULD MENTION THE TRANSPORT MANAGER HAS NEVER DRIVEN A LORRY OR DROPPED A TRAILER ,BUT TALKS AS IF HE,S THE TOP DOG,FOUND OUT LAST WEEK HE USED TO BE A MILK MAN,COULD BE A CASE OF JOBS FOR THE BOYS)
but you quoted last week the trailer was on a downward incline, and if my memory serves me right it was a fridge with front mounted fridge unit hence very little space , now if you didnt have the common sense to check trailer brake was applied you have no one but yourself to blame
Before we had air parking brakes on trailers we almost never used the park brake, 90% of the blighters were seized solid more than a week either side of MOT, you’d spend twenty minutes trying in vain to free the bloody ratchet off and when you released it had to kick the cable to pull it through.
Don’t recall any problems, no one was ever crushed, about the only problem was those who didn’t check if there was some air in the thing sometimes ended up chasing it down the yard, but you can’t legislate for or train monkeys.
Unless the driver has missed the pin completely and connects up the airlines with the king pin perched in front of the 5th wheel, i can’t understand what the problem is…unless its a split coupling issue, when Darwins theory comes into play.
I think he means the trailer bogs down suddenly when you connect the red airline (I still can’t see how this will happen though) I’m confused.
A bit like when your heavy and then get unloaded the suspension is all the way up on the unit, then you release the handbrake and the unit suddenly bogs back down level (if you havent levelled it out on the remote before you release the handbrake already)
markwill:
but you quoted last week the trailer was on a downward incline, and if my memory serves me right it was a fridge with front mounted fridge unit hence very little space , now if you didnt have the common sense to check trailer brake was applied you have no one but yourself to blame
as it was a fridge, why didnt the o.p a) check trailer brake, then b) split couple.?
In purfleet dock you are instructed to drop trailers with park brake off. But I don’t understand it if you couple up the brakes on the trailer release when you put the red line on but the trailer can’t move forward if the pin is locked in the fith wheel. If the tractor park brake is not engaged the whole lot will move but that’s a different story. The only way I can see you getting in this situation is if you split couple. Then again if you have to split couple I’d say a double check of the trailer brakes would be a good idea.