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Fresmak ARNOLD-MAT Manual De Instrucciones página 6

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-MAT AND
A.- Function
This vice clamps the work-piece with hydraulic pressure and the jaw movement is activated mechanically.
It has a handle which manually moves the jaw towards and away from the work-piece.
In order to activate the high pressure, external oil pressure is required. The clamping power applied will
depend on the initial oil pressure from this external source. See table.
The vice operates with a single-acting system having a sole entry and exit port for the introduction of
the oil. The jaw recedes by means of a spring so as to unclamp the work-piece automatically.
The operation is simple. Considering that the vice has been designed to operate with series of pieces
of similar lengths, the working procedure is as follows;
-
Bring the jaw to the work-piece by turning the handle,.
-
Move the jaw back three millimetres.
-
Connect the oil pressure which then activates the high pressure.
-
Once the machining has been completed, the stop switch for the oil pressure will release the
work-piece and activate the automatic withdrawal of the jaw.
The vice is supplied with a fitting/adapter which is connected to the pump. The handle positioned at
the rotating fitting for moving the jaw manually.
B.- Cleaning
It is essential that the vice is cleaned internally for correct functioning.
The metal plates are provided to avoid the introduction of swarf and shavings.
For a complete cleaning operation we must take off the moveable jaw. To do this we must remove the
screw at the back of the jaw. It is now taken off by lifting it towards the front.
Special care must be taken to avoid losing the semi-sphere located inside the jaw.
The spindle slides out of the vice body together with the spindle shoe by taking off the four screws of
the flange at the back.
The vice is now ready for cleaning.
For perfect maintenance, we recommend good quality coolants.
C.- Maintenance of the Oleo-Dynamic Spindle.
If the spindle does not clamp with high pressure, it should be disassembled and cleaned thoroughly
according to the following procedures;
-
Carry out the cleaning instructions detailed in B so as to remove the spindle.
-
Take out the safety ring (1013).
-
Take out the washer (1018) which then releases the spindle. At this point, care must be taken
not to lose the four springs (1015). They must be well lubricated when reassembled.
-
Remove the rotating fitting/adapter. To do so the spindle must be held tight at the cylinder (1408),
place the handle in its hexagon and rotate it with a certain force anti-clockwise.
-
In a similar way, the elastic dowel pin (1415) and the scraper (1402) must be removed.
-
The main spindle (1401) is released from the cylinder (1408). The spindle will come out with the
two dowel pins (1403).
-
The cap (1413) must now be unscrewed. The spring (1404 (model 090 – 018)) and the piston
(1414) can then be removed.
-
The seal (009) can now be changed with a new one.
When mounting the dowel pins, it is recommended that these should be well lubricated so that they may
function correctly.
D.- Fitting/Adapter Maintenance
The adapter seals may possibly suffer due to the high pressure they endure at work. The following steps
should be taken for disassembly;
-
Remove the safety ring (1454), take off the copper seal (1455), and take out the square fitting.
-
Remove the o-rings and the support rings.
-
Replace damaged parts and reassemble.
Once the spindle has been assembled, the fitting/adapter can be installed. This is done by threading it
into position with a clockwise movement. A hydraulic adhesive is recommended.
-COMPACT OLEO-DYNAMIC VICE
6
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