JMA Berna Instruction Manual page 9

1.- INTRODUCTION AND OVeRVIeW
1.1 OVeRVIeW
the berna duplicating machine has been designed in accordance with ec safety regulations.
the safety of users of this type of machine is only achieved thanks to a well designed safety
programme as well as the implementation of a maintenance programme and by following the
recommendations for use, as well as complying with the safety rules set out in this manual.
although this machine is not hard to install, it's advisable not to install, adjust or handle it
without having first read this manual.
the machine leaves our factory ready to use and only needs to be calibrated for use.
1.2 TRANSPORT AND PACKAGING
the machine is housed in a robust cardboard box protected in packing foam. the parcel has
the following dimensions:
width = 440 mm, height = 350 mm, depth = 540 mm
Machine weight including packaging = 23 kg.
inspect the machine carefully on opening the parcel to ensure that no damage occurred during
transport.
if there is an anomaly, please contact the transport company immediately and do not use the
machine until they have carried out their inspection.
to move the machine, pick it up using the two handles on the base, do not hold onto any
other part.
1.3 ID LAbeL
the berna duplication machine has an id label
with the serial or machine registration number
as well as the manufacturer's name and address,
ec label and year of manufacture.
2.-MACHINe CHARACTeRISTICS
the berna is a semi-automatic duplication machine. it's very robust and precise, and is used
to cut flat keys for cylinder, vehicle, special and cross keys.
2.1 KeY TeRMS
1. bow
2. blade
3. upper stop
4. lower stop
5. notch
6. blade
7. back
8. tip
2.2 PRINCIPAL MACHINe PARTS
1 - cutter
2 - Probe
3 - Four sided clamp
4 - handle to open/close the clamp
5 - carriage
6 - carriage control lever
7 - lever to move the carriage
8 - on/off carriage release button
9 - handle for placing the positioners
See Figure 2
2.3 TeCHNICAL INFORMATION
Motor: ..........................single phase 220 V, 50 hz, 0.18 Kw, 1350 rpm, 1.7 amp.
(optional: 110 V, 60 hz, 0.18 Kw, 1700 rpm, 3.14 amp.)
cutter: ......................... high speed steel (hss); 80x16x5
cutter speed: ............... 712 rpm
clamps: ........................ steel, 4 sided
Movements: ................. on self-lubricating bearings
useful trajectory: ........ X axis = 46 mm
lighting:........................ diodes
dimensions: .................. width = 340 mm, height = 243 mm, depth = 435 mm
weight: ......................... 16,7 kg
1
1
2 2
3
3
4
4
6
6
7
7 5
5
8
8
10 - Probe depth control lever
11 - brush
12 - shavings tray
13 - tray for keys, accessories, etc.
14 - handles for moving the machine
15 - on/off switch
16 - on/off button for the brush
17 – led lights
2.4 COMPONeNTS AND WORKING PARTS
2.4.1 accessories
1. 18 size spanner
2. Keys for standard lateral and depth regulation, using the traditional method.
3. wedges for the key tip.
4. notched wedges, for cross key tips.
5.- 1.20 mm rods.
6.- 1.70 mm rods.
7.- rod for changing the cutter or brush.
8.- set of allen keys (2, 2.5, 3, 4, 5).
See Figure 3
2.4.2 electric circuit
the principle components of the electric circuit are as follows:
1. Power point
2. red on/off switch
3. black brush button
4. carriage micro switch
5. carriage
6. transformer
7. led light
See Figure 4
2.4.3 Four sided claMP
the clamp has been designed to clamp a different family of keys on each of its 4 sides.
the figures below show the cutting possibilities on each side of the clamp.
a) cutting with support on the back of the key:
side 1: Keys with a normal blade
side 2: Keys with a narrow blade
b) cutting with clamping on the key guide (profile):
side 3: Key with guide at the bottom
side 4: Key with guide at the top
See Figure 5.A
c) cutting with clamping on the guide of a neiMan type key:
See Figure 5.B
3.- OPeRATION AND FUNCTIONS
3.1 Depth regulation
• Turn off the machine using the red switch, to carry out the operation in complete safety and
make it impossible for the cutter to move.
• Grip the two regulation keys (L) on "side 1" of the clamps so that the lower part of the
regulation key is touching the clamp's (J) inner face.
• Release the carriage by pressing the button (M). Move the cutter (F) regulation and probe
(P) keys.
• Support the tip of the probe on the flat part of the regulation key. In this position, manually
turn the cutter in the opposite direction from the operation until completing a turn.
- if the cutter lightly brushes the regulation key, it indicates that the depth is
correctly adjusted.
- if the cutter spins freely, the cutter is behind the probe and the cutter is not
deep enough. the depth needs to be adjusted.
- if the cutter is stuck on the regulation key, it is in front of the probe and there-
fore too deep. the depth needs to be adjusted.
• To adjust the cutter depth, press the micrometric button in the following manner:
- loosen the setscrew (z) so that the probe axis is released, but ensuring that the setscrew
(z) lightly touches the probe axis. this ensures that the depth probe cannot accidentally slip
while the depth is being adjusted.
- turn the regulation wheel (a) clockwise to reverse the probe.
- turn the regulation wheel (a) anti-clockwise to advance the probe.
• Once the depth is adjusted, immobilize the probe using the setscrew (Z).
•Engage the carriage and release the regulation keys.
See Figure 6
3.2 LATeRAL ReGULATION
• Lateral regulation is fixed and calibrated at the factory, so this step does not need to be
carried out. You can check that it has been correctly aligned.
• Turn off the machine using the red switch, to carry out the operation in complete safetly and
ensure that the cutter cannot start moving.
• Grip the two regulation keys (L) on "side 1" of the clamps so that the lower part of the
regulation key is touching the clamp's (J) inner face.
• Ensure that the positioning supports (H) are perfectly aligned with the upper parts of the
regulation keys. if this is not the case, loosen the screw holding the right positioner and then
tighten it in the correct position.
• Release the carriage by pressing the button (M). Move the cutter (F) regulation and probe
(P) keys.
• Introduce the tip of the depth probe in the regulation key cutter. In this position, manually
turn the cutter in the opposite direction from the operation until completing a turn. ensure that
the cutter lightly brushes the regulation key.
See Figure 7