Cause/Solution |
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There could be many things that cause this problem. Some of them are listed here in the order
that they should be checked.
- Cause: The shell is oriented incorrectly.
Solution: Check to make sure that the shell is being loaded with the safety clamp ring towards the headstock of the device.
- Cause: The arbor hydraulic system is pressurized.
Solution: Check to make sure that the hydraulic screw in the arbor is fully retracted.
- Cause: Dirt or debris build up in the shell bushings, or on the hydraulic expansion sleeves.
Solution: Clean the hydraulic expansion sleeves of the arbor and the inside of the shell bushings, and try to
load the shell in question. If this solves the problem, instruct the customer on proper cleaning and maintenance procedures set
out in the operator manual.
If cleaning the parts does not solve the problem, determine which of the shell shaft, the shell, or the arbor is the
source of the problem by doing the following.
- Cause: Damage to the end of the shell loading shaft.
Solution: To determine if the shell shaft is causing the problem, load the shell as far as possible and
visually check to see if there is any conflict between the end of the shaft and the bushing of the shell. If this is the problem,
replace the shell shaft and discard the bad one.
- Cause: Damage to the shell bushings, especially the safety ring on the headstock end.
Solution: To determine if damage to the shell bushings is
the problem, note whether or not other shells will load onto the specific
arbor. If other shells load fine and a particular shell does not, check the bushings, especially the safety ring on
the HS bushing for damage. If the ring is moderately damaged, it may be possible to carefully bend it back into shape
by tapping it with a small hammer and a block of soft material, such as
aluminum or brass. If it is damaged beyond repair, the shell must not be used anymore and should be replaced.
- Cause: Damage to the hydraulic sleeves of the arbor.
Solution: If the arbor will not accept any shell, the problem is most likely caused by damage to the arbor.
Note how far onto the arbor the shells will go, then remove the shell and try to determine what the shell is getting caught on.
There may be signs, such as an area on the hydraulic sleeves that appears buffed or shiny, or a bent part such as the
safety catch.Certain damaged parts can be repaired, while damage to other parts will require complete arbor replacement.
If the safety catch is damaged, replace it, but if there appears to be damage to the hydraulic sleeves, the arbor will need
to be sent for repair.
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