tacr2man
Well-Known Member
The transmission brake on most LR vehicles works on all 4 wheels , as they are all interconnected . Like any brake it should be used progressively , as conditions demand.
As to all this talk of damage to gear train , how many have first hand experience of such . i have used it in emergency and as a supplementary brake in the past , the emergency application resulted in a destroyed gearbox mounting , and the supplementary was to assist with badly fading brakes when descending in the alps , so long ago that they weren't as high then
. I was not that cognisant of series brake fade back then . Like any brake if applied fast and hard it could possibly cause directional change , although it didnt when i used it . I have seen vehicles jump out of brake rollers due to transmission brake, even when chocked. Diffs and gearbox/halfshafts are not that fragile that they fail just cause you applied the handbrake when needed, not that they could never be damaged , but would you rather fit a diff/ etc than rebuild the front of your landy, or suffer injury ?
As to all this talk of damage to gear train , how many have first hand experience of such . i have used it in emergency and as a supplementary brake in the past , the emergency application resulted in a destroyed gearbox mounting , and the supplementary was to assist with badly fading brakes when descending in the alps , so long ago that they weren't as high then
. I was not that cognisant of series brake fade back then . Like any brake if applied fast and hard it could possibly cause directional change , although it didnt when i used it . I have seen vehicles jump out of brake rollers due to transmission brake, even when chocked. Diffs and gearbox/halfshafts are not that fragile that they fail just cause you applied the handbrake when needed, not that they could never be damaged , but would you rather fit a diff/ etc than rebuild the front of your landy, or suffer injury ?
Station House
Well-Known Member
my audi a6 has an electronic handbrake on the rear wheels, but if you operate it when moving it does a full force emegency stop on all 4 wheels
Impressive!
Z4 electronic handbake doesn't activate over about 5mpn - no use at all if hydraulics failed
DIFFLOCK66
Well-Known Member
Didn't some SAABs in the 70s and 80s have handbrakes which operated on the front wheels too?
200tdi ayre
Well-Known Member
The transmission brake on most LR vehicles works on all 4 wheels , as they are all interconnected . Like any brake it should be used progressively , as conditions demand.
As to all this talk of damage to gear train , how many have first hand experience of such . i have used it in emergency and as a supplementary brake in the past , the emergency application resulted in a destroyed gearbox mounting , and the supplementary was to assist with badly fading brakes when descending in the alps , so long ago that they weren't as high then
The open centre diff means the front wheels and prop can still turn
easye1
Banned
early sweedish cars had no handbrake at all in the winter when the cables froze-
the reason saab had the reverse gear lock/ignition switch..
dont know how saab 66`s worked as they had a freewheel drive built into the gearbox as they used a 2t -2stroke engine, and going downhill meant no engine oiling hence the freewheel at tickover.
(the reason motorbikes went to injection of its 2T oil systems,
oh, and its less polluting)
= the more you open the throttle = the more oil got injected.
easye1
Banned
anyway,
my landies handbrake..
must have known I was putting it high on concrete blocks/big ramps today,
bloody handbrake mechanism has just started sticking making the warning light stay on,
even the low ratio gear lever was almost "stuck" when I put it in low/low to crawl up the big blocks/ramps....
It knows my fetish of big jet washers is nigh....
its getting jet washed to feck tomorrow or thursday - weather permitting,
then I can play at being a motor mechanic again,
ending up with WD40 for starters, then good `ol ep120 in an oilcan for all linkages..
just a thought ??
anyone ever used chainsaw chain/blade anti fling oil on linkages ?
or even in front swivel hubs ??
its propper sticky stuff...
my landies handbrake..
must have known I was putting it high on concrete blocks/big ramps today,
bloody handbrake mechanism has just started sticking making the warning light stay on,
even the low ratio gear lever was almost "stuck" when I put it in low/low to crawl up the big blocks/ramps....
It knows my fetish of big jet washers is nigh....
its getting jet washed to feck tomorrow or thursday - weather permitting,
then I can play at being a motor mechanic again,
ending up with WD40 for starters, then good `ol ep120 in an oilcan for all linkages..
just a thought ??
anyone ever used chainsaw chain/blade anti fling oil on linkages ?
or even in front swivel hubs ??
its propper sticky stuff...
quattro6999
New Member
As a slight deviation, even electronic handbrakes still rely on a cable actuating a caliper or shoes, they just have a motor with a worm gear inside to pull the cable instead of a lever.
Personally I would rather stick with a nice chunky lever to pull rather than something electronic that could easily stop working due to dodgy contacts (and probabky be stupidly expensive to fix)
easye1
Banned
Passed its MOT few days after having MOT fail. handbrake was just full of mud
no, that was the mud problem,
hows your electrics ?
