Re: 444 Brakes

Posted by FromJB2 on April 09, 2006 at 07:38:10 from (72.56.121.128):

In Reply to: 444 Brakes posted by Weav on April 09, 2006 at 06:43:38:

Hi Weav, the 444 has disk brakes in a housing behind your left and right heel while sitting on the tractor. The setup is an inner and outer doubled sided disk with a mechanism in the center that is activated by the brake pedal.
The braking mechanism is 2 metal surfaces with 3 metal balls between that run in a ramped channel. As you apply the brakes the balls are supposed to roll up the ramp spreading the 2 metal surfaces apart applying pressure to the 2 disk brake rotors.

Problesms:
1)Disk brake crud gets in the roller ball channel.
Solution disassemble, clean crud out and apply VERY LIGHT coat of white grease on balls and channel.
2)Disk brake rotors become glazed and shiny.
Solution disassemble, remove glaze with wire brush or edge of metal file. Try to keep surface even.
3)Someone has replaced disk brake rotors with new ones and these new rotors are riding up on the edges of the worn metal surfaces.
Solution disassemble, take a file or rask and file away the outer edges of the disk brake rotor so that it will fit against the worn metal braking surfaces.

Time required to repair is about 1 hour per brake.

Disassembly instructions:
1)Park tractor on level surface, shut off leave in 2nd gear LO, block rear wheels.
2)Remove brake pedal adjusting bolt and rubber boot.
3)Remove 4 bolts from disk brake housing and pull housing away from transmission and eveything should be exposed.
On the right side you may have to remove parking brake mount to have clearance to remove brake housing.

Good luck
JB2

Replies:

• Re: 444 Brakes the tractor vet 07:46:16 04/09/06 (0)

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