JMA SENA User manual

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SENA
INSTRUCTION MANUAL(V02)

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CONTENTS:
1PRESENTATION AND GENERAL ASPECTS.....................................................................2
1.1 GENERAL POINTS..................................................................................................................2
1.2 TRANSPORT AND PACKING .................................................................................................2
1.3 IDENTIFICATION LABEL.........................................................................................................2
2CHARACTERISTICS OF THE MACHINE...........................................................................3
2.1 FAMILY OF KEYS ...................................................................................................................3
2.2 PARTS OF THE KEY................................................................................................................5
2.3 TECHNICAL INFORMATION ..................................................................................................5
2.4 MAIN ELEMENTS OF THE MACHINE ...................................................................................6
2.5 PRELIMINARY OPERATIONS AND WARNINGS...................................................................7
2.5.1 Installing the levers ................................................................................................................................. 8
2.6 COMPONENTS AND FUNCTIONAL PARTS ..........................................................................9
2.6.1 Accessories.............................................................................................................................................. 9
2.6.2 Electric circuit ........................................................................................................................................ 10
3HOW TO OPERATE THE MACHINE ..............................................................................11
3.1 MACHINE ADJUSTMENT ...................................................................................................11
3.1.1 Adjustment of the tracer point. ............................................................................................................. 11
3.2 KEY CUTTING ......................................................................................................................13
3.2.1 Cutting bit keys...................................................................................................................................... 13
3.2.2 Cutting pump keys and Muel type keys. ............................................................................................... 14
3.2.2.1 Pump keys.............................................................................................................................................................14
3.2.2.2 Muel type keys. ....................................................................................................................................................15
3.2.3 Cutting vertical groove keys, wedge bit mortice and ADPLE1,2,3,4 keys............................................. 16
4MAINTENANCE AND SAFETY .....................................................................................17
4.1 CHANGING THE CUTTER OR THE BRUSH ..........................................................................17
4.2 CHANGING THE TRACER POINT.........................................................................................18
4.3 ADJUSTING THE CLAMPS..................................................................................................18
4.3.1 Single and double bladed bit key clamp cutting depth adjustment...................................................... 18
4.3.2 Pump key and vertical groove key clamp cutting depth adjustment..................................................... 19
4.3.3 Bit key clamp side adjustment. ............................................................................................................. 20
4.3.4 Pump key and vertical groove key clamp side adjustment ................................................................... 21
4.4 TIGHTENING OR REPLACING THE BELT .............................................................................23
4.5 REPLACING THE LAMP .......................................................................................................24
4.6 CLEANING THE MACHINE. .................................................................................................24
4.7 SAFETY RECOMMENDATIONS...........................................................................................24
5WASTE DISPOSAL ......................................................................................................25
5.1 PACKING..............................................................................................................................25
5.2 SWARF ................................................................................................................................25
5.3 MACHINE ............................................................................................................................25

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1PRESENTATION AND GENERAL ASPECTS
1.1 GENERAL POINTS
The SENA key cutting machine has been designed on the basis of the safety standards
currently in force in the EU.
The safety of the personnel involved in the handling of this type of machines can only be
achieved with a well designed worker safety programme, like the implementation of a
maintenance programme and following recommended advice as well as compliance with
the safety standards included in this manual.
Although the machine is not difficult to install, it is best not to try to install, adjust or use it
without having first read this manual.
The machine leaves our factory ready for use and only requires calibration operations for
the tools that are going to be used.
1.2 TRANSPORT AND PACKING
The machine comes inside packing with the following dimensions:
Width = 520 mm, length = 600 mm, height = 500mm
Weight of machine plus packing = 55 Kg.
When you unpack the machine, check carefully if it has suffered any damage during
transportation. If you find any problems, please inform the carrier immediately and do not
do anything with the machine until the carrier’s agent has carried out an inspection.
1.3 IDENTIFICATION LABEL
The SENA key cutting machine has an identification label, specifying the serial number,
manufacturer’s name and address, the CE mark and the year of manufacture.

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2CHARACTERISTICS OF THE MACHINE
The SENA key cutting machine is a professional semi-automatic key cutting machine.
It has been prepared to cut single and double bladed bit keys, pump keys, Muel type keys and
vertical groove keys. The machine’s design enables all the models of key mentioned to be cut
without having to change the slide, only having to move the slide to the correct position. These
characteristics make it a versatile machine.
The clamps have been designed to ensure that the keys are clamped correctly. Flat keys and
wedge bit mortice keys can be cut.
The clamp-holder slide is mounted on guides that slide on roller cages. This system provides the
machine with maximum precision, rigidity and sensitivity when it is being used.
Asynchronous motor with two speeds which provides greater flexibility when cutting keys
(speed1: steel, speed2: brass).
It also has an adjustable lamp to light any area of the machine and a brush for removing burrs on
the key.
2.1 FAMILY OF KEYS
The SENA machine can cut the following types of keys:
•Single and double blade bit keys.

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•Pump keys with flat or cylindrical stems, Muel type keys.
•Keys with vertical grooves, wedge bit mortice and ADPLE-1-2-3-4 keys.

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2.2 PARTS OF THE KEY
1. Head
2. Stem
3. Blade
4. Teeth
2.3 TECHNICAL INFORMATION
The main technical information is given below:
Motor: Single phase, 2 speeds 2800-1400 rpm, 220V/ 50HZ, 0.55-0.37Kw
Cutter: Hard metal ∅80 x 16 x1,5 mm.
Clamps: 3 models
Displacement: Guides with roller cage.
Dimensions: Width = 300 mm, Depth = 550 mm,
Height = 350 mm.
Weight: 50 Kg.
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2
3
4

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2.4 MAIN ELEMENTS OF THE MACHINE
1. Cutter.
2. Brush.
3. Tracer.
4. Tracer support.
5. Tracer adjustment control.
6. Light switch.
7. ON/OFF switch.
8. Motor with ON/OFF selector.
9. Belt protector.
10. Cutter protector.
11. Lever.
12. Lever to turn moving clamp for single / double bladed keys.
13. Lever to move moving clamp for pump keys.
14. Blocking shaft for moving clamp for single / double bladed
keys.
15. Clamp-holder slide blocking knob.
16. X slide blocking knob.
17. Y slide blocking knob.
18. Fixed clamp for single /double bladed keys.
19. Single / double bladed key clamping fixed clamp knob.
20. Single / double bladed key moving clamp.
21. Single / double bladed key clamping moving clamp knob.
22. Pump key and vertical groove key fixed clamp.
23. Pump key clamping fixed clamp knob.
24. Vertical groove key clamping fixed clamp knob.
25. Pump and vertical groove key moving clamp.
26. Pump key clamping moving clamp knob.
27. 1 key clamping moving clamp knob
28. X and Y stop.
29. Clamp-holder slide.
30. Lamp.

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2.5 PRELIMINARY OPERATIONS AND WARNINGS.
Place the machine on a solid table that will withstand the weight, bearing in mind that the line
and machine voltage must be the same.
The machine has been tested at our facilities before being sent out.
Before starting up the machine and carrying out any operation, block the X and Y slides with
controls 16 and 17.
The key clamping operations and slide movements must be carried out with the machine switched
off.
Positions on the clamp-holder slide:
Sliding the slide on the dovetail, position one of the three reference points Rwith the base
reference point S.
•The first reference point R1 is for cutting single and double bladed bit keys.
•The second reference point R2 is for cutting pump keys and Muel type keys.
•The third reference point R3 is for cutting keys with vertical grooves, wedge bit mortice
and ADPLE1,2,3,4 keys.
Once the slide is in the correct position, block it by turning the knobs (15).
15
S
R1 R2 R3

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Remember that the machine has two speeds:
0
12
When starting up the machine, press the start button (7) and turn the motor selector to
speed 1 or 2. Once the cutting operation has been completed, set the selector to the 0 position
and press the button (7) again to completely switch off the machine.
2.5.1 Installing the levers
•Fitting levers 12 and 13
Screw the lever (12 and 13) to the right position and tighten the nut.
12 13
SPEED 1= STEEL 700 rpm
SPEED 2 = BRASS 1400 rpm

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2.6 COMPONENTS AND FUNCTIONAL PARTS
2.6.1 Accessories
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1. ∅7x70 rod for changing the cutter.
2. Size 18 spanner.
3. Set of allen keys (2.5, 3, 4, 5, 6).
4. Side adjustment pieces.
5. ∅6x70 cutting depth adjustment rod.
6. Key stop plate.
7. 1mm thick tracer.
8. Ø80x1x16 cutter.
9. Front adjustment pieces.
For cutting keys with machining equal to or smaller than 1mm.

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2.6.2 Electric circuit
These are the main components of the electric and electronic circuits:
1. Socket.
2. Start switch with red light.
3. 2-speed motor.
4. Blue lighting switch.
5. Transformer.
6. Halogen lamp.

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3HOW TO OPERATE THE MACHINE
3.1 MACHINE ADJUSTMENT
The machine leaves our factory ready for use and you only need to check that it is working
properly from time to time.
3.1.1 Adjustment of the tracer point.
For the machine to work properly you need to check the machine adjustment by placing the
slide in the (R1) and (R2) positions.
Procedure
•Undo the knobs (15) and align the first position of the slide (R1) with the reference point
(S).
•Put the adjustment rods (V) into the clamps and clamp them by turning the knobs. See
Fig.1
•Bring the clamps towards the tracer point (I) and the cutter (F), manually turn the cutter
in the opposite direction to the operating direction, until it has completed a full turn so
that the adjustment pieces coincide on the tracer point and the cutter.
•If the adjustment pieces do not coincide with the cutter and the tracer point, proceed as
follows:
•Undo the setscrew (P). Turn the knob (Y) until the cutter touches the
adjustment rod.
•Secure the position of the tracer point by tightening the blocking setscrew
(P).
P
YIV
15
V
F
Fig.1
N.B.: ANY OPERATIONS INVOLVING MOVING THE SLIDES, MAINTENANCE, CLAMPING
AND RELEASING KEYS HAVE TO BE CARRIED OUT WITH THE MACHINE STOPPED.

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•Repeat the same operation aligning the position of the slide (R2) with the reference
point (S) to check that the clamp for pump keys and vertical groove keys is properly
adjusted. To do this, use the adjustment rod W as shown in Fig.2
F
I
W
W
Q
Fig.2
The tracer point has to be adjusted every time the cutter or tracer point is changed.
Mainly, you need to adjust the cutting depth and check the side adjustment.

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3.2 KEY CUTTING
3.2.1 Cutting bit keys.
•Undo the knobs (15) and align the first position of the slide (R1) with the reference point
(S).
•Insert the keys into the clamps, taking are that the blade of the key butts up against the
clamp’s key stop plate (T), as shown in Fig.3. Once the key has been inserted clamp the
keys by tightening the knobs (P).
•Start the machine and holding the slide by means of the lever, bring the keys towards
the tracer point (I) and the cutter (F).
•We recommend that you work slowly, without forcing the cutter. Cutting is achieved by
turning the clamp-holder slide using the knob (N), to do this you have to move the rod
(M) to the left. It is best to carry out the machining, by turning the knob (N), from top to
bottom.
•If there are some burrs on the cut key after the cutting operation, these can be removed
using the brush provided with the machine.
N.B.: ANY OPERATIONS INVOLVING MOVING THE SLIDES, CLAMPING AND RELEASING KEYS
HAVE TO BE CARRIED OUT WITH THE MACHINE STOPPED.
T
T
M
N
PP
Fig.3

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3.2.2 Cutting pump keys and Muel type keys.
3.2.2.1 Pump keys.
•Undo the knobs (15) and align the second position of the slide (R2) with the reference
point (S).
•Insert the keys into the clamps, taking care that the blade of the key butts up against the
front stop of the clamp, as shown in Fig.4. Once the key has been inserted clamp the
keys by turning the knobs (P1).
•Start the machine and holding the slide by means of the lever, bring the keys towards
the tracer point (I) and the cutter (F).
•We recommend that you work slowly, without forcing the cutter. Cutting is achieved by
moving the clamp with vertical movements, to do this you have to move the rod (Q)
upwards and using the lever (P) move the clamp vertically.
•If there are some burrs on the cut key after the cutting operation, these can be removed
using the brush provided with the machine.
N.B.: ANY OPERATIONS INVOLVING MOVING THE SLIDES, CLAMPING AND RELEASING KEYS
HAVE TO BE CARRIED OUT WITH THE MACHINE STOPPED.
QP
P1
P1
Fig.4

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3.2.2.2 Muel type keys.
•Undo the knobs (15) and align the second position of the slide (R2) with the reference
point (S).
•Undo the setscrew (T), turn the clamp 45º as shown in Fig.5.
•Then secure the clamp in this position by turning the setscrew (T) so that the clamp is
blocked.
•Insert the keys into the clamps, taking care that the key goes right to the bottom of the
groove. Once the key has been inserted clamp the keys by turning the knob (P1). See
Fig.6.
•Start the machine and holding the slide by means of the lever, bring the keys towards
the tracer point (I) and the cutter (F).
•We recommend that you work slowly, without forcing the cutter. Cutting is achieved by
moving the clamp with vertical movements, to do this you have to take out the rod (Q)
and with the lever (P) move the clamp vertically. See Fig.10
•If there are some burrs on the cut key after the cutting operation, these can be removed
using the brush provided with the machine.
N.B.: ANY OPERATIONS INVOLVING MOVING THE SLIDES, CLAMPING AND RELEASING KEYS
HAVE TO BE CARRIED OUT WITH THE MACHINE STOPPED.
Fig.5
T
P1
Fig.6

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3.2.3 Cutting vertical groove keys, wedge bit mortice and ADPLE1,2,3,4 keys.
•Undo the knobs (15) and align the third position of the slide (R3) with the reference point
(S).
•Insert the keys to be cut into the clamp, making sure that the head of the key is parallel
to the clamp. Then, undo the screw (T3 or T4) and fit the stop (T1 or T2) resting it on the
blade of the key and then tighten up the screw again. Once the key has been inserted
clamp it by turning the knob (P2).
•Put the blank key into the moving clamp, making sure that the head of key is parallel to
the clamp. Bring the slide with the keys towards the tracer point and the cutter; check
that the cutter touches the key. If this is not the case, move the stop (T3 o T4) until the
cutter touches the key. Once the keys have been inserted clamp them by turning the
knobs (P2).
•Start the machine and holding the slide by means of the lever, bring the keys towards
the tracer point (I) and the cutter (F).
•We recommend that you work slowly, without forcing the cutter. Cutting is achieved by
moving the clamp with vertical movements, to do this you have to remove the rod (Q)
and with the lever (P) move the clamp vertically. See Fig.7
•If there are some burrs on the cut key after the cutting operation, these can be removed
using the brush provided with the machine.
N.B.: ANY OPERATIONS INVOLVING MOVING THE SLIDES, CLAMPING AND RELEASING KEYS
HAVE TO BE CARRIED OUT WITH THE MACHINE STOPPED.
P
Q
T2
T1
T3
T4
P2
P2
Fig.7

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4MAINTENANCE AND SAFETY
When carrying out any maintenance work it is necessary to adhere to the following
requirements:
1. Never carry out any maintenance work with the machine in operation.
2. The electrical power cable must be unplugged.
3. The indications in this manual must be strictly adhered to.
4. Only use original spare parts.
4.1 CHANGING THE CUTTER OR THE BRUSH
Move the cutter guard (G) back for a moment.
To change the cutter: With the help of the spanner (L), block the cutter shaft with the rod
(J) and undo the nut (K) – left-hand thread – securing the cutter (F). Then replace the
cutter, and finally put the cutter guard back into place.
To change the brush: Remove the belt guard and block the cutter shaft with the help of the
rod. Undo the screw (R) with the help of an allen key. Replace the brush and finally put the
cutter guard back into place. See Fig.8.
K
F
J
L
G
R
TT
Fig.8

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4.2 CHANGING THE TRACER POINT
Undo the screws (T), replace the tracer point and tighten the screws with the help of an
allen key. Then check whether the machine is properly adjusted, by following the steps
given in section 3.1.1. See Fig.1 and 2.
4.3 ADJUSTING THE CLAMPS.
THIS ADJUSTMENT IS ONLY NECESSARY WHEN CHANGING A CLAMP.
The different adjustments for the different clamps are described below.
4.3.1 Single and double bladed bit key clamp cutting depth adjustment.
This adjustment is only necessary when you change the single or double bladed bit key clamp.
•Fit the two adjustment pieces (V) into the clamp, as shown in Fig 9. Move the rod (M)
forward so that the clamp is in the correct adjustment position.
•Bring the clamps towards the tracer point (I) and the cutter (F), so that the adjustment
pieces coincide with the tracer point and cutter.
•If the adjustment pieces do not coincide with the cutter and the tracer point, proceed as
follows:
•Undo the two screws (P) and (Q) on the clamp you are adjusting (the clamp that has
been changed) and using a small plastic mallet, tap the clamp gently forwards or
backwards so that the cutter (F) and the tracer point (I) coincide with the adjustment
rods (V). See Fig 10.
•The distance is perfectly adjusted, with the tracer point and the cutter coinciding
perfectly with the respective adjustment parts.
Next, tighten the screws (Q), and brake and block the clamp with the screws (P), so
that when cutting the clamp does not become poorly adjusted due to the blows.
V
F
I
V
M
Fig.9

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P
Q
Fig.10
4.3.2 Pump key and vertical groove key clamp cutting depth adjustment.
This adjustment is only necessary when changing the pump or vertical groove clamp.
•Fit the two adjustment pieces (W) so that they butt up to the clamp, as shown in Fig 11.
Move the rod (Q) forward so that the clamp is in the correct adjustment position.
•Bring the clamps towards the tracer point (I) and the cutter (F), so that the adjustment
pieces coincide with the tracer point and the cutter.
•If the adjustment pieces do not coincide with the cutter and the tracer point, proceed as
follows:
•Undo the two screws (R) and (S) on the clamp you are adjusting (the clamp that has
been changed) and using a small plastic mallet, tap the clamp gently forwards or
backwards so that the cutter (F) and the tracer point (I) coincide with the adjustment
rods (V). See Fig 10.
•The distance is perfectly adjusted, with the tracer point and the cutter coinciding
perfectly with the respective adjustment parts.
Next, tighten the screws (S), and brake and block the clamp with the screws (R), so
that when cutting the clamp does not become poorly adjusted due to the blows.
F
I
W
W
Q
Fig.11