loader cylinder continued:
LEONZ, you seem to be the expert on everything, but what made you decide the rod is bent and the "barrel to become egg shaped which has ruined the cylinder"? Perhaps you have seen the cylinder already and I have not.
Thank you for the compliment and I will continue to keep my head out of my butt:laughing:
This happens with mining equipment where a singe cylinder is used to control a digging bucket on underground mining scoops and they dont bother with improving themm or upgrading the cylinder parts.
The shovel operators will keep digging because they are not payin attension to anything but the need to fill the bucket and in the end the cylinder will suffer any of the following fates
a. the rod eye will snap off
b. the cylinder rod will break the rod eye weld and flatten the steel that the weldment is made of like a pancake while retracting the cylinder rod.
c. the cylinder and rod will bend in an arc and become scrap metal as the individual parts-
a. barrel
b. packing gland, packing gland locking ring and rod wiper
c stufffing box
d. cylinder rod
e. piston halves
f. barrel end swivel bearing
The only undamaged part left is the castle nut that holds the piston halves together.
continued:
and are ruined from the damage and force.
We had one mechanic so disgusted with a bad cylinder that he could not disassemble that he filled it with acetylene and oxygen and fired it off and the rod packing gland and piston launched themselves over 150 feet from the main shop repair bay and the explosion could be heard and felt on the upper level of the mine.
Not the kind of thing that you want to do at home mind you- it ranks right up there with goosing a tire with some acetylene to get the bead to seat on a tubeless tractor tire.
They refused to buy a tuxco cylinder repair machine that disassembles and assembles cylinders because it was not a justifiable expense even though we had hundreds of hydraulic cylinders in use and still do.