[Art]

Here is what you might try……….

On your build sheet you can probably get the listing for the axle manufacturer’s part number or if not the part number specific to the shoes or pads, certainly for the axle assemblies.

You might be able to go to the manufacturer’s owner’s manual for that axle and get the OEM number which truck parts supply houses can cross reference.

When I did my brakes I came up empty handed and my only source for anything was to get the friction material from Prevost, but I tried. It seems nobody lists or stocks parts for buses unless they are also used on heavy trucks.

[Archived]

John/Skywagon180:

The Meritor disc pad pt# is: KIT15615PM or S2R7017173, which includes 2 pads for 1 wheel.

The Meritor slide pin pt# is: KIT15013, which includes 2 slide pins, O-rings, and grease for one wheel.

Section 12 of the Prevost Maintenance manual (for my coach) covers brakes. Page 12-18 is about disc brakes. In the back of section 12 is a Rockwell maintenance manual(No.4M) for the Duramaster air disc brakes.

If you have more than 1/4″ of slide pin sticking out you probably don’t need pads. Its been my experience that the slide pins and/or their bushings often need replacing due to wear

The minimum rotor thickness and part# can be found on the outer edge of the rotor.

Here is a manual for Meritor Duramaster ADB disc brakes on steer and tag axles

Meritor disc brake manual mm4m

Here is a manual for Meritor Cam drum brakes on the drive axle

Meritor drum brake manual mm4

Here is a video on Meritor air disc brake maintenance

Meritor disc brake video

I don’t have the drum shoe Meritor pt#, sorry.

PS: I appears we both own 96 Liberty XL40 and we are both tailwheel pilots because your handle(Skywagon180). I have a Glasair 1 Tail Dragger 🙂

[Jon P.]

Be careful about using the slide pin as the sole means of evaluating pad thickness. I had one showing ample pad thickness, but when I got the wheel off and was able to actually see the pads almost all the wear was on one side and the pin was showing thickness for the pad that wasn’t worn.

I cannot remember the details because it was more than 10 years ago, but do a good visual to look for that issue and on the drums, my issue was not wear, but the original friction material on the shoes was cracking and parts and pieces were starting to come off the shoe.

I was also show a pad on a late model coach with the Knorr-Bremse disc brakes and the pad looked like it disintegrated.