Wednesday, March 8, 2017

Toro MH 400 on lift brake check

Today the MH 400 came in for winter service . In the operators hand book it says to check the electric brakes and brake pad wear and to service brake shoe slides etc  yearly . We have a couple of seasons on our unit now . Looks to be a big job but with the lift I was able to do it myself . The guys help me push it on the lift but as an after thought I could have removed the bucket arm and rolled it in myself . 

I would have preferred to have it on the lift the other way and use the plate to pick it up in this section .But the wall and tool box plus length of machine at the rear didn't allow it . 

Putting the wheels ahead of the buckets made jacking it up possible on the lift .

Strap the tongue end down .

Jacked it up a bit and removed electric brake wiring . Put it back down and loosen wheel nuts on inside and outside tires right to the end of the studs ( so when you jack it up the wheels will bypass the frame ) . next remove the 4 bolts that hold each axle in place . 

After jacking it up roll both axles out . Drop the frame back to the ground . Its a pretty heavy unit and is safer here . Not quite as heavy as our JD 5055E tractor but I bet its close . 

Axles out and flip them up on end and remove the wheel ,,caution the wheel is pretty heavy .

remove the cotter pin and discard . replace with a new one . They seemed a little undersized . 

Remove the castle nut 

Pretty much the same as a regular brake but bigger . Only thing really difference is the coil for the electric brake . If its worn down to the point that you can see the wires ....replace . 

remove springs and slide shoes out to service guides . Remove any rust and lube . Not getting into much detail it was pretty basic . This post is mostly using my lift to get the job done easily.

A few more pics . Didn't realize how big these tires are till they are off the machine .

The belt made for a nice table to hold tools .

Raise the frame back up and roll axles back underneath . 

Pretty surprised on how easy it was to line up the blocks to drop bolts down in . Once you get 4 bolts per axle in lower the frame onto them and finish bolting them on . Re zip tie electric harness back up 

Done . Notice in the pic the buckets are off lift for easy backing out of the MH400 . Brake pads were in new condition and will tear down and check them in 3 years .in between I'll set up brake shoes and check for bad wheel bearings . Over all it was a pretty easy job . Always take care when working on the lift and remove and or tighten parts up when its sitting on the frame . Very very heavy .

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