|
QUESTION:First of all, let me apologize if this is off-topic. I did a search in
google of previous threads about forklifts, and this group has a
number of experienced people who have discussed them. That's the
reason I post here.
I just bought a used Hyster S60xl for use around my house. I tend to
collect a lot of heavy junk! I don't know anything about forklifts though, and so this post is bit long because I don't know what's
important for you to know.
I was told the brakes were bad but everything else worked. I never
even saw it, but it was so cheap....I had it delivered.
The vaporizer/regulator (Impco model J) was apart when I got it, and
after I reassembled it liquid propane shot into the mixer...
After examining it, I realized there was a pin missing that
controlled the valving of the liquid feed. I chucked up a nail in my
old bridegport and made the missing pin from measurements I took from
the vaporizer. Seemed like something .128 wide by .660 long would do
the trick. Guess I did something right, it starts right up and runs
excellent now.
Now, to those brakes. The resevoir was empty. I assumed there was a
busted line or leak somewhere. I added some DOT3 (is that's even
correct) but it didn't leak as I expected. When I press the brake
pedal, there's a liquid movement in the resevoir that suggests fluid
is being pumped up into the resevoir. I see nothing happening when I
release the brake pedal, but I assume it's sucking fluid back in.
There are no air bubbles anywhere during this.
Nothing is leaking, the ground is dry. If I press very hard on the
pedal, sometimes it goes to the floor, sometimes it stops the truck. I
was thinking I have air in the lines that needs to be bled, but I
don't know why the resevoir would be dry in the first place if there
was no leak. Hmmmmm....
So, how do I bleed these brakes? Is it like a car, bleeding at the
wheel cylinders? Do I lift the truck up high to get under it, or pull
the wheels off? Has anyone experienced just this kind of bad braking
before? Maybe it's a bad 'pump' under the brake pedal?
ANSWER: It'd probably be worthwhile to see if you can locate a local dealer/service
shop to see if they would copy a few pages of a service manual for your
particular model.
Desirable bartering goods are donuts, pizza and various beverages.
I haven't torn into FT brakes for a long time, but they were just common
split-opposed shoe pairs with a wheel cylinder. The shoes were considerably
wider than typical car shoes.
On the FTs I was servicing, the only clean spots on them were the seats.
It's possible that any lost fluid would be absorbed by a thick layer of
dirt, so it may not make it to the floor for quite a while.
Many brake fluid systems will gravity bleed to some extent if you keep the
master cylinder filled, and you may be able to determine more after several
days.
My guess is that there would be bleeder screws for each front wheel.
|
|
|
|
