ROHM Tool clamping units - Manual (Page 16)

Likewise, no strain caused e.g. by rigid
pipe connections should be allowed to
act on the rotary union. Flexible connec-
tions are to be used for this.
5.4 Assembly of clamping set
5.4.1 Installation of the clamping set
(see also assembly drawing)
1. First of all move the built-in clamp to the
unclamp position.
2. Next check whether the lock nut screw is
completely screwed in to the clamping
piece.
3. Lubricate the sealing rings of the clamping
set and fill the lubricant reservoir.
4. Insert the clamping set through the spindle
using the socket wrench and screw onto
the drawbar extension as far as the refe-
rence setting.
5. Fix the reference setting of the clamping
set by tightening the lock nut screw with
the help of a hex head screwdriver and by
holding it firmly with the socket wrench.
After approx. 100 clamping strokes the
”Installation of the clamping set proce-
dure” must again be repeated. Next check
the reference setting. If part of the seg-
mented collet clamp breaks, the complete
clamping set will have to be replaced.
5.4.2 Dismantling the clamping set (see
assembly drawing)
¯ Move the built-in clamp to the unclamp position.
¯ Next release the lock nut screw with the help of
a hex head screwdriver by holding with the
socket wrench.
¯ Release the clamping set from the drawbar
extension with the socket wrench and withdraw
it from the spindle.
The built-in clamp and the stationary un-clamp
unit have been lubricated for life with F80 lubri-
cant. Depending on the conditions of use,
maintenance work only has to be undertaken
at lengthy intervals. This is particularly the
case when the necessary holding force can no
longer be achieved.
In this situation the built-in clamp and/or the
stationary unclamp unit are to be dismantled
(see point 3 in the chapter on Safety
Precautions), cleaned and re-lubricated with
F80 lubricant before being reassembled. Du-
ring such general cleaning, all damaged com-
ponents and seals subject to dynamic loading
should be replaced at the same time.
6.1 Upkeep
A complete operating check is to be carried
out at 4-week intervals or when stiffness in
operation and a loss of clamping force is ob-
served.
This operating check consists of
¯ checking the settings
¯ testing the sequence of motions by clamping
and unclamping with a tool
¯ checking the clamping force or holding force with
a clamping force measurement device (holding
force gage).
see point 2.6 in the chapter on Safety Precautions
In order to avoid lengthy downtime in the
case of a malfunction, it is recommended
that a set of wear parts as indicated on the
parts list be held in stock at all times.
6. Maintenance
Maintenance of the tool clamping system is of
prime importance for its operation, clamping
force, precision and service life.
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