XYZ Machine Tools TRAK 2OP M11 Mill, Safety, Installation, Maintenance, Service And Parts List

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XYZ Machine Tools Ltd
TRAK  2
OP
Installation, Maintenance, Service & Part List Manual
depending on which solenoid is energized. This valve also supplies air to the door lift cylinder, which
assists in opening and closing the ATC door.
3. Valve Manual Override – each valve has a red button near each solenoid that can be pushed in to
manually shift/operate the valve. This feature should not be used to adjust the ATC cylinder, but it can
be used to adjust the tool unclamp cylinder operation and thru spindle air. The electrical power does
not have to be connected to use this feature.
Warning!
These override buttons should never, normally be pressed when the machine is powered. The manual
override feature should be only used if absolutely necessary, usually in a case when one person is setting
up or troubleshooting the machine. This feature should not be used to adjust the ATC cylinder; the ATC
valve is a three position valve, with centre ports which are normally exhausting. Using the override
buttons on this valve will result in very violent movement of the ATC.
Pressing the manual override button basically shifts the valve in the same direction as if it was operated via
the adjacent solenoid during the normal machine operation. These buttons are normally spring loaded
OUT.
They have two basic functions:
1. Push only: when pushed in, they shift the valve, and when released the valve shifts back.
2. Push and Twist to Lock: when pushed down and twisted clockwise, the button will stay
down. The valve will shift and will stay shifted until the button is twisted anti-clockwise to unlock and
return the button to the out position.
Do not forget to release any locked buttons once troubleshooting has been completed.
Warning!
Do not activate the valve #2 manually if the Y-axis is not completely forward, (0.40 inches past the
actual soft limit) or if the Z axis is not in its upper most position. Failure to do so may lead to a crash of
the ATC into the table or head. Also, never activate the air tool change cylinder valve 1 when there is a
tool still in the spindle.
5.9.7 Flow Control Valves
The 2 OP has 6 air flow control valves; labeled 1 through 6 on drawing 27563-2.
1. Valve #1: mounted on the ATC cylinder, controls how fast the ATC moves back
2. Valve #2: mounted on the ATC cylinder, controls how fast the ATC moves forward
3. These valves are adjusted at the factory by opening them to make the ATC move as fast as possible
but smooth and without a noticeable bounce at the end of the stroke. Note: The ATC flow controls
must be adjusted in conjunction with the ATC cylinder’s internal cushions for the optimum operation
– see below for adjustment procedure. It should take approximately 1 second to move out and 1
second to move back in.
4. Valve #3: used to control the amount of air that comes down through the spindle during a
tool change. This has been adjusted from the factory by closing the valve and then opening it
approximately 8 full turns.
5. Valve #4: works in conjunction with #5 when closing the ATC door.
6. Valve #5: controls how fast the ATC door is permitted to close.
7. Valve #6: controls how fast the door can open by regulating how fast the air can exhaust
from the door lift assist cylinder.
Flow controls 4 thru 6 should be adjusted to obtain a fast but smooth ATC door operation. See below for a
guideline on how to adjust the flow controls.
Note – it is important to route the air lines properly when replacing a flow control valve. Failure to do so
will cause the system not to behave properly when adjustments are made. Figure 5.9.1 explains how a flow
control valve works.