Say somebody topped up a mineral oil system with DOT brake fluid, would the two mix, or would one float on the other?
I'm just back from looking at a forklift that the brakes are binding on.
After finally finding a bleed nipple and cracking it open, the brakes are no longer binding, which indicates an issue with the master cylinder not releasing pressure.
I asked the question as whether anybody had topped up the brake fluid recently.
It transpired somebody topped it up a few months ago, never noticed the sticker above the reservoir about using mineral oil/LHM, and the reservoir is now full of DOT fluid.
Obviously the master cylinder seals have swollen, which is what will be causing the issue, but I'm wondering about the wet disc brake seals, and whether the brake fluid will have worked it's way down to them.
I've rebuilt one of these axles in the past, and it's a complete axle off, split, strip, and replace the multiple piston seals (IIRC it's 8 per side), along with multiple other gaskets/seals, so a job we want to avoid if possible.
I'm just back from looking at a forklift that the brakes are binding on.
After finally finding a bleed nipple and cracking it open, the brakes are no longer binding, which indicates an issue with the master cylinder not releasing pressure.
I asked the question as whether anybody had topped up the brake fluid recently.
It transpired somebody topped it up a few months ago, never noticed the sticker above the reservoir about using mineral oil/LHM, and the reservoir is now full of DOT fluid.
Obviously the master cylinder seals have swollen, which is what will be causing the issue, but I'm wondering about the wet disc brake seals, and whether the brake fluid will have worked it's way down to them.
I've rebuilt one of these axles in the past, and it's a complete axle off, split, strip, and replace the multiple piston seals (IIRC it's 8 per side), along with multiple other gaskets/seals, so a job we want to avoid if possible.
