brake lock on wrecker

[SCSG-G4]

Hello did you ever figure this issue out? I have an Mi816 that when I set the line lock will not disengage..
Truck will not move

When you apply the brakes and set the MICO lock, don't be stomping the pedal through the floor! The mechanical MICO locks need to have MORE foot pressure on the pedal to release than was originally applied to set the MICO on. One of our local fellas with a wrecker always had to bleed a rear wheel to get his to unlock because he stomped down so hard on the pedal to set it in the first place. I got him to only apply 'firm' pressure and it has unlocked every time since. YMMV.

 

[joe@correctrefrigeration.]

When you apply the brakes and set the MICO lock, don't be stomping the pedal through the floor! The mechanical MICO locks need to have MORE foot pressure on the pedal to release than was originally applied to set the MICO on. One of our local fellas with a wrecker always had to bleed a rear wheel to get his to unlock because he stomped down so hard on the pedal to set it in the first place. I got him to only apply 'firm' pressure and it has unlocked every time since. YMMV.

Oh wow ok - I’ll bleed a rear wheel or two and see what happens. Thanks !!

 

[joe@correctrefrigeration.]

On my m62 I just need to pump the brake peddle to get it to release. Is that not the case for your truck?

I have pumped the brake and brakes will not release. May have depressed pedal down too far when I set brake in 1st place - someone said bleed at rear wheel and that may release

 

[joe@correctrefrigeration.]

Oh wow ok - I’ll bleed a rear wheel or two and see what happens. Thanks !!

We bled the rear brakes and the brakes released amen !
Thanks for the help

 

[SCSG-G4]

We bled the rear brakes and the brakes released amen !
Thanks for the help

It dosen't take much, releasing a teaspoonful is usually what will do the trick.

 

[joe@correctrefrigeration.]

It dosen't take much, releasing a teaspoonful is usually what will do the trick.

Correct just a quick turn squirt and I heard a click