Rohm LHS-L Serie Instrucciones De Servicio página 11

3.5 Tighten the fastening screws of the adapter plate to the torque
recommended in the table of torques.
Should the class and/or size of the screws used not be given
in the table of torques, use the torque recommended in VDI
Guideline 2230.
3.6 Remove the sealing cyps form the connecting unions and
connect the pressure lines. As the sealing caps may be useful
in conjunction with a later removal of the cylinder, they should
be retained for this purpose. The pneumatic connections on
the air distributor must be free of contamination. The best way
to assure this is to clean the ports with a jet of low-pressure air
before connecting the lines. Never allow chips to penetrate
into the distributor housing where they may cause irreparable
damage to the distributor shaft or the safety valves.
All connections must be flexible so as not to constrain the
distributor housing. This includes the coolant union and the
hose to be secured thereto by means of a hose clip which has
to be provided by the customer. The hose should be made of
Clamping travel monitoring device:
A. Sizes 26 and 38: The clamping travel monitoring
device for sizes 26 and 38 is located in the area of
the coolant collector.
B. Sizes 42 and 62: The clamping travel monitoring
device for sizes 42 and 62 is located between coo-
lant collector and piston housing.
D Irrespective of the cylinder size, clamping travel is
monitored by means of a switching disc secured to
the actuating cylinder piston. Two inductive proxim-
ity switches available as accessories are mounted
on separate limit switch trips which can be continu-
ously adjusted by loosening and retightening the
two clamping screws.
D
The length of clamping travel is normally determined
by the piston stroke of the chuck in use.
D Set the proximity switches to suit the capacity of the
chuck or as specified by the manufacturer of the
machine.
D
For chucks with quick-change base jaws, the clam-
ping travel monitoring device must be connected to
the control system of the machine in a manner pre-
4
3.7 The device preventing the distributor housing from rotating
3.8 After installing the cylinder with draw-in elements, mount the
0,015
D
Performance check:
When the cylinder is ready for operation, it is good prac-
tice to check its performance, proceeding as follows:
D
D
D
If the results deviate from the specifications, find the
causes and eliminate all differences immediately.
transparent material and return the coolant to the supply tank
by the shortest possible route without sagging or rising.
To lubricate the compressed air we recommend the oiler:
"BOSCH Ökonomic NL4".
(anti-rotation lock) must be provided by the customer. Nor-
mally, this takes the form of an approx. 8 mm thick yoke faste-
ned to the spindle housing with a forked end surrounding the
coolant drain union. The drain union must point vertically
downward. Here again, special care must be taken to avoid
any axial constraint of the distributor housing (thermal expan-
sion).
chuck. Note that no elements can be screwed into the chuck
or its draw-in elements from the rear end of the spindle once
the cylinder flange has been firmly secured to the machine
spindle.
0,01
Machine spindle
venting the spindle from starting in the jaw change
position.
As a rule, the following positions are monitored:
-- Jaws fully open,
-- Jaws fully closed.
Furthermore, the clamping position may be actively
scanned by means of an additional proximity switch
if this is compatible with the work cycle.
adjust the pneumatic system to a low pressure
(approx. 4 bar)
with the chuck mounted, compare the actual posi-
tions of the actuated elements (jaws, centre, driver
or the like) with the specifications of the chuck dra-
wing
check the actual positions of the switching disc