Maintenance
9 Maintenance
9.1 Lubrication
To maintain the reliable function and high quality of the lathe
chuck, it has to be regularly lubricated at the lubrication nipples
(items 25 and 26).
In order to achieve optimum grease distribution, the base jaws
need to be moved into the open position for O.D. clamping, the
power chuck lubricated, and the base jaws then closed again.
Repeat this procedure one more time.
Then the piston has to be moved several times up to its end
positions.
Operating conditions
Depending on the operating conditions, the function and clamping
force need to be checked after a specific period of operation (see
chapter "Maintenance intervals"
calibrated gripping force gauge for measuring during the clamping
force test (SCHUNK IFT).
Lubricate all three segments evenly in order to avoid large
imbalances.
Technical condition
With the smallest possible actuating pressure (hydraulic cylinder),
the base jaws should move evenly. This method only provides a
limited indication and is no substitute for measuring the clamping
force.
If the clamping force has dropped too much or if the base jaws and
piston no longer move properly, the chuck will have to be
disassembled, cleaned and relubricated.
Only use original SCHUNK spare parts when replacing damaged
parts.
9.2 Maintenance intervals
Lubrication of the grease areas:
Lubrication interval Strain
every 25 hours
normal / coolant utilization
every 8 hours
high / coolant utilization
after 1200 hours or
as needed
Total cleaning with disassembly of the
chuck, depending on type and degree of
contamination
9.3 Changing the top jaws
When changing the top jaws, the serration has to be cleaned and
greased with SCHUNK LINOMAX plus special grease.
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01 | ROTA NCO2, ROTA NCO2-JA | Power Chuck | en | 1506425
