Tips needed for replacing a Garage door spring cable
Steve Harvey
which has a broken cable. I found a site which sells
cables and has instructions to fit the cable
http://www.amourelle.co.uk/mk3c-fitting.htm
but when I came to try to do the job I realised that
the door position with least tension in the spring
was to have to door UP. The problem with this is
that the top spring box is totally hidden behind the
door and inaccessible.
Does anyone have any useful tips, for example should
I have to work on the inside the garage with the door
DOWN and to try and pull the cord fully tight OR is
it better to Remove the door ?
Thanks in advance
Steve Harvey
steveharvey at dsl dot pipex dot com
--
Steve Harvey
Project Engineer (Electronics)
TRW-LucasVarity Electric Steering.
Tameside Drive, Holford,
Birmingham, B6 7AY
UK.
Tel +44 (0) 121 332 1128
Fax +44 (0) 121 332 1001
Mobile (07890) 283852
reply to: stephen...@trw.com
Alex
I assume you have a springbox which is over the top of the door ,if so you
will require the following and this is done with the door closed
1.A 6" screwdriver and a good mole grips,if at all possible look at a
neighbours setup first,or checkout the unbroken side
2.having removed old cables thread the new cable through the pulley wheel(
on the side of the door is a arm which is called a side lever arm ,at the
top of this is a pulley wheel)put the loose cable through .this wheel then
place scewdriver through loop of cable now run the cable through the spring
pulley wheel and pull back and attach to springbox clip
,if at all possible look at a neighbours setup first.
3.there should be some tension on the cable now.there is a option either
pull the cable down to spindle arm clip with the screwdriver then clamp with
mole grips withdraw screwdriver and clip cable to spindle roller
4,or lift door and prop open pull cable down aprox 6 " then clamp as above
Option 2 is the safer
I am hoping to have some pictures posted on my web site soon to show how to
do this in stages.but they are not ready yet
Hope this helps
Alex
alec
> I have a Garador 'Georgian' up'n'over garage door
> which has a broken cable. I found a site which sells
> cables and has instructions to fit the cable
> http://www.amourelle.co.uk/mk3c-fitting.htm
> but when I came to try to do the job I realised that
> the door position with least tension in the spring
> was to have to door UP. The problem with this is
> that the top spring box is totally hidden behind the
> door and inaccessible.
>
> Does anyone have any useful tips, for example should
> I have to work on the inside the garage with the door
> DOWN and to try and pull the cord fully tight OR is
> it better to Remove the door ?
>
> Thanks in advance
>
Steve
Although my experience is not exactly the same as yours - I had a
broken spring rather than a cable - I think the basics are probably
similar.
I decided that is was easier to replace the whole box which cost about
£80 IIRC.
To connect the cables to the spring I assume that is is easy for you
to gain access to the spring. My box is enclosed which is why I
decided to replace the whole lot.
Once you have connected the cable to the spring and threaded it over
the roller as described elsewhere, I found it easier to use the mole
grips to lock on to the cable and then pull it down using the grips
until you have enough slack to slip the "hole" in the end of the cable
over the peg in the garage door.
I also found that the rollers on the door which run up & down in
tracks had worn unevenly so I replaced these at the same time. It
might be worth inspecting these while you are replacing the cable.
Good luck
Alec
Alex
Sounds as you had a very old reverse springbox( that is a box where the
springs are not accessible until unit is taken down),good call to replace
this as it is already about 30 years old.
Alex
em...@techemail.com
tools requires
a second cable to extend the replacement cable .
two pairs of mole grips for safty ,
gloves
torch
Large screw hook or larges crew
a small ratchet strap to tension the spring .
the first time will take 6 hours and the loss of two fingers and a eye not to mention brown trousers ,the second time will be 10 minuets and a cuddle from the happy ownwer of the garage
working inside the garage
wear gloves and goggles, and use a strong light
remove the spring box cover and remove the old cable,
thread a new cable where the same route as the opposite side.
Right at At the bottom of the door frame screw in a hook screw.
, you will find the new cable will not be long enough to pass over the pulley at the top corner,
, obtain a second cable to assistist installation
pass it throgh the loop of the replacement cable.
Then the cable used to assist installation will be doubled up.
Pass The doubled up assist cable over the pully wheel,
this means you will have two loops extending over the pulley wheel.
, Attach a small ratchet strap to the hook screw.at the bottom of the door frame ,
the strap is connected to the two loops of the cable used to assist installation.
. Now ratchet the cable tight . The replacement cable will be pulled over the pulley,
Now you have two option,
a push the spring into the retainng hook in the spring box
b this the one i use . Clamp the replacement cable using two mole grips to the side of the door ,
slacken off the ratchet and remove the cable use to install the new cable
Attach the new cable to the side roller hook
Now carefully take the strain and undo the two mole clamps.
Graham.
has got a new door or moved house.
--
Graham.
%Profound_observation%
