REMS Unimat Serie Instrucciones De Uso página 10

eng
The machine should be installed in such a way that even long bars can
be chucked. Sufficient space must be allowed at the motor end for the
workpiece to emerge in accordance with the maximum length of thread
(hollow shaft up to 30 mm dia.). The machine can be bolted down if
required.
2.2. Electrical connection
Note the mains voltage! Before connecting the machine, check whether
the voltage on the rating plate matches the mains voltage.
The machine can be connected to mains systems with or without neutral
wire (N). The control voltage is generated by a transformer installed in the
switching box. An earthed conductor (PE) must however be present. If
the machine will be connected directly to the mains (without plug connec-
tor), a main switch will have to be installed.
Important!
When connecting the machine, note the direction of rotation of the die
head before the closing lever (1) (Fig. 2) comes up against the triggering
cam (2) (Fig. 4) for the first time. A closing lever for right-hand thread
shears off the stop screw (3) (Fig. 2) during left-hand rotation of the die
head when the lever meets the triggering cam (as does a closing lever for
left-hand thread during right-hand rotation of the die head). To test the
direction of rotation, the die head should therefore be in its right-hand limit
position. The direction of rotation can be altered by a phase change (pole
change of electrical conductor). The connection must be such that the re-
versing switch (5) fitted on the switchbox (4) (Fig. 3) achieves the follo-
wing rotation directions:
at setting I, to right of 0, the die head rotates to right,
at setting II, to left of 0, the die head rotates to left.
When the machine is overloaded, a winding thermostat switches off the
electric motor. After a few minutes, the machine can be restarted, with a
lower die head speed being selected.
2.3. Thread-cutting oils
Only use REMS thread-cutting oils. You will achieve faultless cutting results
and long die durability, and at the same time place much less strain on
the machine.
REMS Special thread-cutting oil (containing mineral oil) is highly alloyed
and can be used for pipe and bolt threads of all types.
In addition, it can be rinsed off with water (officially verified) and is therefore
also suitable for drinking water installations. Careful rinsing of the system
following installation will prevent any odour and taste effect on the drin-
king water.
REMS Sanitol thread-cutting oil is free of mineral oil, synthetic, comple-
tely watersoluble, and has the lubrication properties of mineral oil. It can
be used for all pipe and bolt threads. Its use is mandatory in Germany,
Austria and Switzerland for drinking water pipes, and it complies with
official specifications (DVGW Approval No. DW-0201AS2032; ÖVGW Ap-
proval No.1.303; SVGW Approval No. 7808-649).
Only use thread-cutting oils undiluted! (No emulsions)
Depending on the operation of the machine and the resultant heating of
the coolant, between 40 and 80 liters of coolant can be poured into the
tank.
2.4. Stock support
Longer pipes and bars must be supported with the height-adjustable
REMS Herkules (120100), which features steel balls for trouble-free
movement of the pipes and bars in all directions without tilting the stock
support unit. If long pipes or bars are processed frequently, two REMS
Herkules are recommended.
3. Setting the thread size
3.1. Mounting (changing) the die head
To avoid changing the die set (die stock chaser and holder) in the die head,
replacement die heads are recommended. Instead of the die set being
changed in the die head, the entire head is changed (shorter resetting
time). To do so, remove the three bolts (6) (Fig. 4) with the pin spanner
(7) (Fig. 5) and take the die head forwards out of its fitted seat. When po-
sitioning the die head, ensure that the fitting surfaces of the die head and
the mounting on the gearbox have been carefully cleaned. The closing
lever driver, which projects beyond the rear of the die head, must be ins-
erted into the mating part of the gearbox in a specific position. Care must
therefore be taken to ensure that the locking pin, which locks when the
die head retracts, is positioned level with the line marking. When instal-
ling the die head, turn the closing lever (1) to the left or right, as neces-
sary until the driver engages.
Caution: The driver is not square.
3.2. Mounting (changing) the closing lever
Depending on the thread type, the following closing levers – with differing
designations as appropriate – are required:
R for right-hand tapered pipe thread (ISO R 7, DIN 2999, BSPT, NPT)
R-L for left-hand tapered pipe thread (ISO R 7, DIN 2999, BSPT, NPT)
G for right-hand cylindrical pipe thread (ISO 228, DIN 259, BSPP, NPSM,
Pg, BSCE, M x 1.5 (IEC))
G-L for left-hand cylindrical pipe thread (ISO 228, DIN 259, BSPP, NPSM)
M for right-hand metric bolt thread (DIN 13), UN thread (UNC, UNF),
BS thread (BSW, BSF)
M-L for left-hand metric bolt thread (DIN 13), UN thread (UNC, UNF), BS
thread (BSW, BSF)
For left-hand threads, the die head cover must be turned and the stop
screw (3) (Fig. 2) changed over. Please note here that when looking
onto the die head (Fig. 2), the stop screw (3) is to the left of the closing
lever (1) for right-hand threads, and (after changing round the die head
cover and the stop screw) to the right of the closing lever (1) for left-hand
threads.
Important:
The wrong closing lever or incorrectly inserted stop screw will lead to
damage to the machine.
3.3. Mounting (changing) the die set
To change the die set (die stock chaser and holder), it is best to remove
the die head from the machine and place it on a table as described under
3.1. Then remove two cover bolts (8) (Fig. 4) using the pin spanner (7)
(Fig. 5), remove the cover, open the closing lever, and lever out holder
No. 1 with a screwdriver as shown in Fig. 6. Remove the other holders.
Clean the square end of the die head. Install a new die set, starting with
holder No. 1. The last holder must fit precisely and be capable of being
installed easily (without the aid of any tools, such as a hammer). If ex-
cessive clearance is present (worn holder), the thread tolerances will in-
crease accordingly. If there is no clearance at all, i.e. the holders are jam-
med, it will not be possible to open or close the die head closing lever,
which may break. Reinstall the cover, tighten the bolts and check that the
closing lever can turn. It must be possible to turn it by hand back and forth
(open and close the die set). If this is not the case, the die set must again
be dismantled and the square end, holder and cover checked for chips.
Incorrect handling may also damage the edges of the holder. This da-
mage can be repaired with a file.
If the die set in the machine is changed, care must be taken to ensure that
the closing lever is up when the holder is removed, to prevent chips drop-
ping into the recess for the setting spindle. After removing the holder, clean
the die head. Before installing the new die set, starting with holder No. 1,
place the closing lever in the down position (install holders in the sequence
1, 2, 4, 3).
4. Operation
4.1. Right-hand / left-hand thread
Ensure that the correct closing lever and the stop screw is correctly in-
serted for the selected die set (see 3.2.) and that the direction of rotation
of the die head is correctly set at the reversing switch (5) (Fig. 3) (see 2.2.).
4.2. Setting the thread diameter
The required thread diameter is set at the setting spindle (10) (Fig. 2) using
the square-section spanner (9) (Fig. 5). Rough setting is achieved by adjus-
ting the setting spindle until the appropriate mark on holder No. 1 (win-
dow in die head (11)) is aligned with the mark on the die head. Fine set-
ting is achieved with the aid of the fine setting tabler provided with each
machine and stating a setting number of the setting spindle for each thread
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