[W126 Coupe] Replacing spheres

[Dan Gardner]

Hi Folks
    Thought I would tackle the spheres today,should be straight foward three 
nuts and two unions,so I thought, trouble is my car spent its early years in 
Hong Kong with its salt laden atmospere resulted in all the underbody 
hardware being corroded.
    All the nuts were power wire brushed then WD40 for a few hours,after a 
lot of effort they finally came off as did the unions except for the small 
11mm one underneath,despite using a quality flare wrench it was so tight it 
rounded off,I think the material MB uses is very soft.
I then had to remove the sphere and the line together,managed to get the 
line off after putting the union in a big vice and rotating the sphere.
    Still had the problem of the rounded union,found it easier and quicker 
to MIG weld the corners and reshape on a grinder,fits the wrench perfectly 
now and is harder on the corners.
    One thing I forgot to mention was the bleed nipple on the switch 
assembly,after reassembly is the system supposed to be bled?I havnt seen any 
reference to that.

                                                                        Kind 
Regards  Dan Gardner 1986 560 SEC Euro (220kw)