Alfamacchine Minigraf m3 manual 

MinigrafM3

MINIGRAF 3

INSTRUCTION HANDBOOK

Alfamacchine

Via dell’Artigiano, 12 - 47100 Forlì - Italy

Tel. +39-0543-482711 - Fax +39-0543-480770

[email protected] - www.alfamacchine.com

MinigrafM3

INDEX

1. GENERAL INFORMATION 3

1.1 PRODUCER 3

1.2 ASSISTANCE CENTERS 3

1.3 CERTIFICATION 3

1.4 WARRANTY 3

1.5 PRE-ARRANGEMENTS CHARGED TO THE

CUSTOMER 3

1.6 HANDBOOK STRUCTURE 3

1.6.1 Object and contents 3

1.6.2 Utilizers 3

1.6.3 Preservation 3

1.6.4 Symbols utilized 4

2. MACHINE DESCRIPTION 5

2.1 WORKING PRINCIPLE 5

2.2 MAIN COMPONENTS 5

2.3 MACHINE STRUCTURE 5

2.4 DIMENSIONS 5

2.5 SURROUNDING CONDITIONS 5

2.6 LIGHTING 5

2.7 VIBRATIONS 5

2.8 NOISE EMISSIONS 5

2.9 TECHNICAL DATA 6

2.10 STANDARD EQUIPMENT 6

2.10.1 Standard accessories 6

2.10.2 Upgrading and implementing of mechanical parts 6

2.10.3 Optional accessories 6

2.10.4 Customized optional accessories 7

2.11 ELECTROMAGNETIC AMBIENT 7

3. SAFETY 8

3.1 GENERAL WARNINGS 8

3.2 SCHEDULED USE 8

3.3 INADVISABLE USE 8

3.4 DANGEROUS AREAS 8

3.5 PROTECTION DEVICES 8

3.6 STOP FUNCTIONS 8

3.7 SAFE WORKING PROCEDURES 8

3.8 RESIDUAL RISKS 9

3.9 PLATES 9

4. INSTALLATION 9

4.1 SHIPPING AND HANDLING 9

4.2 STORAGE 9

4.3 PRELIMINARY ARRANGEMENTS 10

4.4 UNPACKING 10

4.5 CONNECTIONS 10

4.5.1 Pneumatic connection 10

4.6 PRELIMINARY CONTROLS 11

4.7 MACHINE ARRANGEMENT 11

4.7.1 V-Nails magazine loading 11

7.7.2 V-nail guide head replacement to change

V-nails size 11

4.8 ADJUSTMENTS 12

4.8.1 V-nails inserting positions adjustment 12

4.8.2 Vertical clamp adjustment 13

4.8.2a Vertical clamp position adjustment 13

4.8.2b Vertical clamp height adjustment 13

4.8.3 Frontal clamp adjustment 13

4.8.4 Working pressure adjustment 14

4.8.5 Protective shield adjustment 15

4.9 CHECKING OPERATIONS TO BE EFFECTED

BEFORE WORKING START 15

5. FUNCTIONING 16

5.1 OPERATORS 16

5.2 FUNCTIONING DESCRIPTION 16

5.3 TIPS FOR PERFECT JUNCTIONS 16

5.4 MACHINE STOP 16

5.5 MACHINE REINSTATEMENT 16

5.6 PUTTING OUT OF SERVICE 17

6. MAINTENANCE 17

6.1 STATE OF MAINTENANCE 17

6.2 MACHINE ISOLATION 17

6.3 SPECIAL CAUTIONS 17

6.4 CLEANING 17

6.5 LUBRICATION 18

6.6 ORDINARY MAINTENANCE 18

6.7 EXTRAORDINARY MAINTENANCE 18

7. DIAGNOSTIC 19

7.1 SAFETY WARNINGS 19

7.2 TROUBLESHOOTING 19

7.3 REQUEST OF ASSISTANCE 20

8. SPARE PARTS 21

8.1 SPARE PARTS LIST 21

8.2 SPARE PARTS ORDERING 21

9 DEMOLITION 21

9.1 DEMOLITION 21

10. ATTACHMENTS 21

10.1 DECLARATIONS 21

10.2 SCHEMES 21

MinigrafM3

1. GENERAL INFORMATION

1.4 WARRANTY

ALFAMACCHINE’s products are constructed to have a

long life and are tested one by one.

If, in spite of this if any damages or malfunctioning would

occur, the replacement of defective parts is warranted

(counting from the date written on the delivery bill) for a

period of:

- 24 months for mechanical components

- 12 months for pneumatic part

Thedriverbladeistestedforabout1.000.000workingcycles.

The Warranty does not include the sending of technical

staff.

The repair interventions will be perofrmed at your local

distributor orALFAMACCHINE’s plants and the freight of

the shipment will be entirely charged to the Customer.

Warranty does not cover the damages caused by an

inappropriate use of the machine or not corresponding to

the instructions described in this handbook.

The warranty decays in case of unauthorized modifications

or because of accidental damages or tampering performed

by unqualified personnel.

The warranty also decays in case you use V-nails different

from the originalALFAMACCHINE ones.

To take advantage of warranty services it is necessary at the

moment you receive your machine, to completely fill out the

warranty card and send it back as soon as possible to

ALFAMACCHINE.The warranty will be valid only after the

ALFAMACCHINE receives the warranty card & records it.

1.5 PRE-ARRANGEMENTS CHARGED TO

THE CUSTOMER

It is the customer’s duty on times agreed with the producer

to execute what is indicated in our documentation.

Things normally charged to the customer are:

•Premises predisposition, included building works and/

or canalization eventually requested

•Pneumaticsupplyngofcompressedair (see the paragraph

4.5)

1.6 HANDBOOK STRUCTURE

The customer must pay extreme attention to the indications

reported in this handbook. The proper Pre-Arrangement,

Installation and Use of the Machine, constitute the basis of

a correct customer-distributor relationship.

1.6.1 Objectand contents

The goal of this handbook is to provide to the customer all

the necessary information so that they can properly use the

machine&be able to run it in complete autonomy and safety.

The handbook contains information concerning the technical

aspects, machine working and standstill, maintenance, spare

parts and safety. Before making any operation on the

machine, the qualified technicians and operators must

carefully read this handbook. In case of doubt about the

correct interpretation of these instructions, ask

ALFAMACCHINE or your local distributor to have the

problemexplained.

1.6.2 Utilizers

Thishandbook is made both for the operators and technicians

authorized to perform the machine maintenance.

The operators can not execute operations reserved to the

the qualified technicians.

The producer does not answer to damages derived from

not-observing this prohibition

1.6.3 Preservation

The instruction handbook must be kept very closed to the

machine in a special container protecting it from liquids and

whatever could compromise its legibility

1.1 PRODUCER

The firm Alfamacchine can boast more than 10 years of

experience in the construction of Woodworking Machines.

It has acquired technological know-how, developed during

years of research in strict touch with manufacturing and

international commercialization. We offer the best warranty

that anyone can grant its customers.

TEL +39-0543-482711 FAX +39-0543-480770

1.2 ASSISTANCE CENTERS

ALFAMACCHINE is represented both in North & South

America by a numerous and prepared sales organization.

Contact our firm directly to get the name of your local

distributor.

For every need regarding Use, Maintenance or Request of

Spare Parts, the Customer is pleased to address to the

authorized service centers or directly toALFAMACCHINE,

specifying the machine identification data impressed on the

plate.

1.3 CERTIFICATION

The machine is produced in conformity to the pertinent

European Community Norms in force at the moment of its

introduction on the market.

MinigrafM3

1.6.4 Symbols utilized

P...

A...

O...

I...

C...

R...

WARNING

OBSERVATION

INQUIRY

EXAMINATION

ADJUSTMENT

It indicates a danger with a mortal risk for the operator

It indicates a warning or a note about key functions or useful

information. Pay the maximum attention to the paragraph

marked with this symbol.

It is requested to take a measurement data, to check a

signal,....

The user is requested to check the proper positioning of

any element of the machine, before operating a certain

command

It’s necessary to consult the handbook before performing a

certain operation

In case of strange sitituation and/or anomalies you can be

requested to perform a certain mechanical adjustment

DANGER

MinigrafM3

2. MACHINE DESCRIPTION

2.1 WORKING PRINCIPLE

The benchtop Frame Assembling Machine Minigraf 3 has

been realized to assemble any kind of frame.

The Minigraf 3 being of simple construction and extremely

easy to use, makes it possible to join with absolute precision

any kind of moulding by means of special steel V-nails.

It uses v-nails with the “pulling power” effect in different

sizes.

2.2 MAIN COMPONENTS

The main components constituting the machine are:

Pneumatic clamping device to allow a proper locking of the

mouldings to insert severalV-nails in different positions

Magnetic pressure pads of several types, at quick

replacement, to have the proper clamping of any profile

Dual function foot pedal for the separate control of the

clamping and nail insertion

Pneumatic opening of the V-nail magazine for a very quick

reloading

Nail heads sizes 7, 10 and 15 mm.

2.3 MACHINE STRUCTURE

The movement directions during the machine’s working are

the following:

- X AXIS

Movement of the horizontal clamp

- Y AXIS

Movement of vertical clamp

The indicated noise levels are emission

ones measured in standard conditions of

use. In case of any machine modification,

the above mentioned levels could be

changed and should be tested on the same

machine.

2.4 DIMENSIONS

The overall dimensions are reported on table 2.9-A

2.5 SURROUNDING CONDITIONS

The machine does not need special surrounding conditions.

It has to be installed inside an industrial building, lit, aired

andwithacompactandflatfloor.The permitted temperatures

go from 5° to 40° C, with a humidity level not higher than

50% at 40° C or 90% at 20° C.

2.6 LIGHTING

Premises lighting must be conformed to the norms in force

in that Country where the machine is installed and has to

guarantee a clear visibility and can not create dangerous

light reflections.

2.7 VIBRATIONS

In standard conditions conformed to the indication of

machine proper utilization the vibrations do not create

dangerous conditions.The average quadratic weighed level,

according to the acceleration frequency to which arms are

exposed does not exceed 2,5 m/s2.

2.8 NOISE EMISSIONS

The machine is designed and projected for reducing the

noise emission level to its source. In standard working

conditions the Machine noise power level is:

Acoustic Continuous Equivalent weighed

pression A <70dB

Acoustic Istantaneous weighed

pression <130dB

The noise levels indicated are emission levels and are not

representative of operating levels. In spite of an existing

relationship between emission levels and exposure ones,

this can not be used in a reliable way to define if further

precautions are necessary. The factors determining the

exposure level to which the working force is subjected,

include exposure length, working premises characteristics

and other noise sources (number of machines, closed

building, etc…). Furthermore the allowed exposure levels

could change according to several Countries. At any rate,

the information provided will allow the Machine Operator to

achieve a better evaluation of the danger and risks they are

submitted to.

Picture 2. 1 A - Movement directions

MinigrafM3

Picture 1

Picture 2

Picture 3

TABLE 2. 9A Tecnical data

- Frames thickness min-max 6-80 mm.

- Frames width min-max 6-80 mm.

- V-nails magazine capacity n. 230

- V-nails size 7, 10, 15 mm.

- V-nails size on request 3,5,12mm.

- Pneumatic Supplying BAR 3-6

- Weight about 32 kg

- Height of working bench 110 mm.

- Overall dimensions 480x300x300 mm.

2.9 TECHNICAL DATA

We have listed below the Machine’s data and technical

characteristics to which you can make reference for any

eventual contact with your distributor for Technical

Assistance.

2.10 STANDARD EQUIPMENT

The equipment listed below is standard.

2.10.1Standardaccessories

Once you have removed the packaging, please check the

presence of the following accessories:).

- N.1 nail head mm.7

- N.1 nail head mm.10

- N.1 nail head mm.15

- N.1 L shaped pressure pad

- N.1 Rounding pressure pad

- N.1Allen Wrench 5 mm. for V-nails head replacement

- N.1 Brass rod magnet to remove V-nails

2.10.2Upgrading and implementing of

mechanical parts

Themachinehas been realized following a modular criterion,

therefore the existing equipment can be further upgraded

with additional accessories that will not alter its basic

structure.

Technical upgrades on the machine model, if any, will be

such that they can be installed at any time without requiring

any substantial modifications to the machine’s structure.

2.10.3Optional accessories

•Floor stand

•Adjustable tilting fences (see fig. 3)

•Wooden support table

•Metal support extensions (fig. 1A)

•Special fences for octagons (fig.2)

•Special fences for hexagons (fig.1)

•Round and square pressure pads in rubber

•V-nailsclawheads size 3-5-12 mm.

•Double mechanical pressure pad

•Triple mechanical pressure pad

MinigrafM3

2.10.4Customized optional accessories

Thanks to its versatility this machine can be ‘custom-made’

to meet our users requirements, with additional accessories

thatcanmake the frame assembling easier: e.g. special fences

for peculiar moulding shapes, special clamps to ensure the

mouldings are locked properly during V-nail firing, and so

on. These can be made at your local machine shop.

2.11 ELECTROMAGNETIC AMBIENT

The Machine is designed to operate properly in an industrial

electromagnetic ambient without altering it being an

exclusively pneumatic machine.

Figure 1A

MinigrafM3

3.1 GENERAL WARNINGS

The operator must pay the maximum attention to the

information written in this Handbook, expressively about

the proper precautions for Safety listed in this chapter.

It is indispensable for the operator to follow the warnings

listed below:

•Keep the machine & the working area clean & ordered

•Provide appropriate containers to stock the pieces you

willbeworkingwith.

•Use the Machine only in a normal psycho physical

condition

•Wear adequate clothing to avoid obstacles and/or

dangerous entanglements to/from the machine

•Wear the individual protection gears prescribed by the

instruction handbook, regarding the effected operations

•Do not remove or alter the warning plates and adhesive

signs

•Do not remove or elude the Machine Safety Systems

•Keep the fingers away from the working area

•Disconnect the air pressure supply during any

maintenance intervention

•Keep your foot off of the pedal during Machine

maintenance

3.4 DANGEROUS AREAS

The area where the frames are assembled is defined as the

“working area”

The dangerous areas of machine, include the movable parts

and surrounding zones

3.5 PROTECTION DEVICES

The machine is equipped with adequate protections for

persons exposed to the risks due to the transmission of

mobile elements taking part in working (driver blade,

horizontalclamp, vertical clamp).

3.6 STOP FUNCTIONS

The machine stop functions are the following:

•Fast clutch fitting stop (Category 0).

•Foot pedal Stop (Category 1).

STOPCATEGORY0

It is obtained by disconnecting the fast clutch fitting from

feeding system (uncontrolled stop).

STOPCATEGORY1

Controlled stop obtained by lifting the foot from the

pneumatic pedal that does not allow the v-nails to drive.

The other risks related with using the machine are:

- Finger crushing in the frontal clamp working area

It is necessary to carefully follow the following instructions:

1 Keep the fingers away from frontal and vertical clamp

working areas

2 Disconnect the air pressure and during any maintenance

interventions

3 Keep the foot away from the pedal during machine

maintenance

3. SAFETY

The machine is projected and realized to

eliminate any risk connected with its use.

The user is requested to achieve an

adequate training to be instructed by your

local distributor or ALFAMACCHINE’s

technicians.

3.2 SCHEDULED USE

The Machine is designed and built to execute junctions of

frames.

Themachineisprojectedformanualuseonly(underoperator

control).

3.3 INADVISABLE USE

The machine can not to be used:

•For uses different from those listed in 3.2 paragraph

•In an explosive or aggressive atmosphere where there is

a high density of dust or oily substances suspended in

the air

•Ina flammable atmosphere

•Outside in all weather severity

•For working materials not suitable with the machine’s

characteristics

Figure 3.4.A- Working area and dangerous zones

3.7 SAFE WORKING PROCEDURES

MinigrafM3

3.8 RESIDUAL RISKS

During the normal working cycle and while performing

maintenance the operators are exposed to several residual

risks that because of the operations own nature can not be

totally eliminated.

•Risk of finger crushing in the working areas of vertical

and frontal clamping

3.9 PLATES

The warning plates carrying out safety functions can not be

removed, covered or damaged.

To see the plates or adhesive signs location, consult the

Fig.10.2-D

Table 3.8 A- Types of plates

4. INSTALLATION

4.2 STORAGE

In case of long inactivity, the machine must be stored with

cautions concerning storage place and times.

•Store the machine indoors

•Protect the machine from jarring impacts and stresses

•Protectthemachinefrom humidity and high temperatures

•Avoid corrosive materials that could touch the machine

•Lubricate the parts which are not painted

4.1 SHIPPING AND HANDLING

Theshipmentmustbe performed by a professionally qualified

staff. The machine has to be shipped in a safe way to avoid

any damage to its parts.

•All the protections and guard devices must be properly

closed and locked.

•The machine has to be shipped like it is positioned for

installation.

•Before the shipment it is necessary to lubricate the parts

which are not painted.

•According to the type of shipment, it is necessary to

protect the machine from any jarring impact or stress

Figure 4.1A – machine handling indications

Plate concerning machine characteristics

Adhesive sign concerning the finger danger zone

Adhesive sign concerning the behaviour to be kept

during the working cycle

Adhesive sign concerning the behaviour to be kept

during the working cycle

Machine total weight: about 28 Kilos

Lifting the machine must be performed by 2

operators.

Any damaging of the machine caused during its shipment

or handling is not covered under warranty.

Repairs or replacements of damaged parts are charged to

the customer.

MinigrafM3

Check the foot pedal operation when the

V-nail magazine is closed. The foot pedal

control is deactivated when the V-nail

magazine is opened.

4.3 PRELIMINARY ARRANGEMENTS

In order to install the machine it is necessary to prepare a

working area adequate to the machines dimensions & the

length of moulding you will be working with.

To fulfill the characteristics of precision and steadiness, the

bench frame assembling machines must be positioned on a

solid and leveled plane able to sustain the weight of the

machine. The bench must be studied and prepared by the

customer and/or qualified staff.

4.4 UNPACKING

The benchtop machine is shipped & packed into an

appropriate carton which is protected by polystyrene parts.

Remove the external packing and save it for a future use.

Check for any casual shipping damage and report it

immediately. Shipping damages or any other defects must

be reported to Alfamacchine or your local distributor within

3 days from receipt of the machine.

Picture 4

Picture 5

Picture 6

Once you have connected the machine with the pneumatic

system,check the operation of the foot pedal in the following

way:

•Pressing the foot pedal half way down activates the

horizontal clamp, vertical clamp and the fence locking

•The foot pedal pressed full down activates the V-nail

It is advisable to install a filter/lubricator on

the air compressed system to obtain clean

and lubricated air.

Use only silicone lubricating oil for

pneumatic systems. The use of inadequate

oil could damage the valves.

Use the supplied fast clutch fitting to connect to the air

compressor system. You could use also another fitting

suitable with your pneumatic system (see fig. 6).

4.5 CONNECTIONS

To avoid any problems while setting up the machine, it is

suggested to follow the instructions listed below.

4.5.1 Pneumaticconnection

The machine is controlled by a dual function foot pedal.

The 3 pipes for the pedal must be inserted into the 3 fittings

located on machine’s right side in the following sequence

(fig.4-5):

Upper connection Red pipe into the red fitting

(external side)

Ceter connection Black pipe into the black fitting

(center fitting)

Lower connection Transparent pipe into the 3rd fitting

(user side)

MinigrafM3

4.7 MACHINE ARRANGEMENT

4.7.1 V-Nails magazine loading

To load the V-nail magazine proceed as follows:

•Move the claw pusher backwards by flipping the special

lever located on the right side of the machine working

bench. This will give you access to the V-nail magazine

(seefig. 7).

•Insert one or more V-nail strips into the magazine. Make

sure that the sharpened edge of the V-nails (glue side)

faces up and that they are loaded with the V of the V-

nails pointing in the direction indicated in the figures 8

and 9. Check to see if the V-nail size is suitable with the

type of claw head mounted.

•Move the claw pusher forward by flipping the control

lever(see fig.7)

Picture7

Picture8

Picture 9

4.7.2 V-nail guide headreplacementtochange

V-nails size

The V-nail guide head must be changed each time you use

V-nails of different sizes.

Proceed as follows to replace it:

•Loosen the locking screw of the V-nail guide head using

the proper 5 mm Allen wrench (the screw is on the

opposite side from the V-nails magazine(See fig. 10)

•Take out the V-nail guide head

•Move the clawpusher backwards by flipping the special

lever located on the right side of the machine working

bench. (see fig. 8).

•Removeallthe V-nails thatarestillin the magazine(using

the proper brass magnet, if necessary).

•Insert the new V-nail strip (of desired height) into the

magazine

•Move the clawpusher forward by flipping the control

lever (see figure 7).

•Insert the new size V-nail guide head to match the V-

nails you will be using (see fig. 11).

•Tighten the locking screw of the V-nail guide head (see

fig.10).

4.6 PRELIMINARY CONTROLS

Thepreliminary operations before starting the machine, must

be executed by a technician appointed by the customer.

Before setting up the machine, it is necessary to execute

certain verifications and checks to prevent mistakes or

accidents during setup.

•Verify that machine has not been damaged during the

assembly steps.

•Verify with extreme care, the pipes integrity

MinigrafM3

picture 10

picture 11

4.8 ADJUSTMENTS

The machine has been completely tested and checked in

ALFAMACCHINE’s plants before its shipment. All the

operator has to do is perform the following adjustments:

4.8.1 V-nails inserting positionsadjustment

To properly position the mouldings to be assembled, the

Minigraf 3 is equipped with a 90° fence.

The fence can be shifted forward or backward in order to

allow the proper positioning of the v-nails in the moulding.

The fence stops (backward and forward) can be set with

precision by means of locking clamps (see fig. 13).

The operator can easily use the machine to insert V-nails

with extreme precision into 2 different positions (fig. 14).

picture 13

picture 14

MinigrafM3

4.8.2 Vertical clamp adjustment

The vertical clamp can be adjusted in height and position.

Proceed as follows to adjust them:

4.8.2a Vertical clamp position adjustment

•Position the mouldings to be assembled on the working

bench

•Select the pressure pad suitable with the profile of the

moulding to be assembled and put it on the vertical bar

•Loosenthehandle(seefig.15)that locks the clamp,which

holds the vertical bar. This will permit its movement

forward or backward.You want the pressure pad directly

over the V-nail insertion point.

•Tighten the handle once you have reached the proper

position Picture 16

4.8.3 Frontalclampadjustment

The Frontal Clamp (horizontal clamp) has a series of holes in

the flat bar (see fig.17).

Lift the bar, to take it out of its initial position.You will now

be able to move it forward and backward.

To lock the bar it is sufficient to insert it into the proper peg

located in the middle of the guide channel.

Proceed as follows to position the frontal Clamp correctly:

1. Remove the baroffof the peg by lifting it by about10-15

mm. Move it forward until it touches the moulding to be

assembled (see fig.18);

2. Lower the bar into the next available hole and over the

peg.

Picture 17

4.8.2b Vertical clamp height adjustment

•Loosen the side (see fig. 16) handle and adjust the

pressure pad height over the frame. It suggested that

you put the bar height between 5 & 8 mm over the

moulding. This will help avoid any accidental fingers

crushing.

•Tighten the handles once you have reached the proper

position

•Lower the vertical clamp by pressing half way down on

the foot pedal. This will verify that the mouldings to be

assembled are properly clamped

•Press all the way down on the foot pedal to insert the V-

nail.

Picture 15

MinigrafM3

Picture 18

4.8.4 Working pressureadjustment

The working pressure must be adjusted to the hardness of

the mouldings to be assembled.

The pressure regulation allows you to change the clamping

pressure of mouldings to be assembled.

Too high of a working pressure can cause a poor junction

and (especially on small-size frames) the moulding could be

crushed.

Too low of a working pressure can cause an incomplete

insertion of the V-nail into the frame.

The working pressure is adjusted by means of the regulator

on the panel near the pressure gauge (see fig. 19).

Proceed as follows to adjust the working pressure:

1. Pull up the regulator cap by about 3÷4 mm. This will

unlock it.

2. Turn it clockwise to increase the pressure and counter-

clockwise to decrease it.

3. Push the regulator cap back down to lock it into position

Picture 19

In case of continued use without needing

to remove the frontal clamp from its

position, it is possible to fix it into the peg

using the proper screw.

When shipping the machine it is advisable

to lock down the frontal clamp by using the

supplied knob.

DONOTADJUST the pressure

ifthe machineisnotconnected to

theairsupply.

The suggested pressures are:

Softwoods (samba,........) 1.5 - 2.0 Bar

Medium (ramin,........) 2.0 - 3.0 Bar

Veryhardwoods (oak) 3.0 - 5.0 Bar

The above listed values apply to 7 and 10 mm high V-nails.

Increase the pressure by 10 % for 15 mm high V-nails.

When stacking 2 or more V-nails, increase the working

pressure by 10 to15 %.

MinigrafM3

4.8.5 Protectiveshield adjustment

You can order a protective shield made of transparent plastic

material.(seefig.20).

4.9 CHECKING OPERATIONS TO BE

EFFECTED BEFORE WORKING START

Oncethemachinehasbeenproperlyinstalled(likepreviously

described), check that:

The mouldings to be assembled are properly positioned on

the working bench

The magazine is loaded with the type of V-nails suitable

with the mouldings to be assembled

The adjustment of the vertical and horizontal clamps are

correct(chapter 4.8.2 and 4.8.3)

The working pressure is adequate to the wood hardness (see

chapter 4.8.4)

Pressing halfway down on the pedal both the frontal and

vertical clamps hold the frame properly

The protective shield is properly positioned (see chapter

4.8.5)

Press the pedal all the way down to insert the V-nail

If you want to insert 2 or more V-nails one

upon the other in the same position, you

mustrelease the pedal until halfway and then

press it full down again to insert the second

V-nail

Opening the protection shield causes

the foot pedal to be deactivated.

Proceed as follows to adjust the protection shield:

1. Loosen the 2 knobs which hold the shield in place and

liftor lower it to a height of about 6-8 mm fromthetopof

the moulding.

2. Tighten the knobs to lock the protection shield.

Even if the protective shield is properly adjusted, it is

necessary following instructions listed below:

3 Keepthefingersawayfromthe frontal and vertical clamp

workingarea.

4 Disconnect the pressure supply during any maintenance

intervention.

5 Keep your foot off of the pedal while adjusting the

machine.

picture 20

MinigrafM3

b) Assembling positions

It is advisable to operate as follows in order to achieve the

best results in terms of junction quality:

Never drive V-nails near the junction vertex. The

minimumrecommendeddistance from theexternalvertex

is at least 10 mm.

When you want to make the junction using only one V-

nail, the most suitable position is in the middle of the

moulding (see fig. 21)

In case you want to insert 2 or more V-nails into each

junction, we recommend you to insert the most external

one 1/3 from the external vertex and the most internal

one 1/4 from the internal vertex.

5. FUNCTIONING

5.1 OPERATORS

The machine has been projected to be used by only one

operator.

The staff assigned to operate the machine, must be in

possession (or acquire through an adequate training) the

requirements indicated below. In addition they must have

the knowledge of this handbook and every information

concerning safety:

•General and technical culture sufficient to comprehend

the handbook contents and properly understand the

drawings and schemes

•Knowledge of the main sanitary, technological and anti-

accidental norms

•Overallknowledgeofthe production line and plant where

the machine is installed

•Specific experience in the assembly of frames

•To know how to operate in case of emergency , where to

find the individual protection means and how to use

them properly.

The Maintenance people in addition to the above mentioned

characteristics must be in possession of an adequate

technical education.

5.3 TIPS FOR PERFECT JUNCTIONS

a) V-nail types

Inordertoallowthemachinetomakeexcellentqualityjoints

using different materials, it has been necessary to

manufacture different V-nails types for different uses (see

attachment D).

V-nails can be classified in three different groups:

picture 21

5.4 MACHINE STOP

The machine can only work by pressing the pneumatic foot

pedal. To stop it, lift your foot from the pedal.

It is possible also to disconnect the fast clutch fitting from

the compressed air.

5.2 FUNCTIONING DESCRIPTION

The machine has only one possible operating mode:

•Manual functions by using the pneumaticfoot pedal.

Press the foot pedal half way down to clamp the frames

Press the foot pedal all the way down to drive a v-nail.

To assemble a frame junction, you must operate as follows:

1 Set the inserting positions by means of the fence locking

clamps

2 Place the moulding on the working bench. Move the

fence to the first inserting point.

3 Adjust the vertical clamp height and position

4 Adjust the frontal clamp position

5 Verify and adjust theproperworking pressure according

to the mouldings to be assembled.

6 Press half way down on the pneumatic pedal to verify

the proper position and clamping of the moulding.

7 Press the pedal all the way down to insert the V-nail. If

you want to insert 2 or more V-nails, one upon the other

in the same position, you must release the pedal halfway

and then press it all the way down again to insert the

second V-nail and so on.

8 Completely release the foot pedal

9 Move the moulding and the fence to the next inserting

point and repeat the steps 6,7 and 8.

for soft woods and

soft plastic

for medium woods

for hard woods

Suggested V-

nails code

Suggested V-

nails code

Suggested V-

nails code

5.5 MACHINE REINSTATEMENT

The machine reinstatement is performed by pressing the

pneumatic foot pedal.

MinigrafM3

6. MAINTENANCE

6.1 STATE OF MAINTENANCE

The maintenance operations must be performed with the

machine in the conditions described at “state of the machine”

in the tables 6.6.A and 6.7.A

6.2 MACHINE ISOLATION

Before performing any type of maintenance or repair it is

necessary to isolate the machine from it’s supply sources

by performing these operations:

1) Disconnect the fast clutch fitting from the pneumatic

system.

Once you have completed the maintenance & before

reactivating the pneumatic supply, make sure that any

component and any pneumatic connections are properly

reinstalled.

6.4 CLEANING

The machine structure is simple and robust therefore the

mechanical parts do not require any special maintenance.

It is advisable to follow the rules listed below:

•Regularly remove glue or other residues from the V-nail

head and from the upper part of the driver blade;

•Always keep the v-nail magazine clean and without

residues.

•Remove any residues from the V-nails guide “L” shaped

support.

Do not use water to clean the machine, otherwise metallic

parts may rust.

Beforeperforming any cleaning intervention,

the operator must disconnect the pneumatic

system..

5.6 PUTTING OUT OF SERVICE

Incase on long inactivity periods it is necessary todisconnect

the fast clutch fitting from pneumatic system.

6.3 SPECIAL CAUTIONS

During the maintenance or repair operations is suggested to

proceed as follows:

•Beforestartingany operation place a sign“machineunder

maintenance” in a well visible position.

•Do not use solvents or flammable materials

•Do not step on the machine parts, because they have not

been projected to sustain the weight of persons.

•Put on a pair of safety glasses.

•Once all the operations are finished replace any

protections and shields you removed or opened.

MinigrafM3

6.6 ORDINARY MAINTENANCE

The following operations must be performed at the times indicated below. Not observing the following instructions exonerate

the Producer from any responsibility regarding the warranty.

The operations described here below, even if simple, must be executed by qualified personnel.

The scheduled ordinary maintenance includes overhauls, checks and interventions that, to prevent stops and breakdowns,

keep the system workoing properly:

•Lubrication state of the machine

•Wear and tear parts state

TAB 6.6A

6.7 EXTRAORDINARY MAINTENANCE

Listed below are the operations that need the intervention of Alfamacchine or your local distributor’s Technical Assistance

(see the paragraph 1.2). You can also use qualified staff authorized by the Producer

The extraordinary maintenance includes interventions to be performed in exceptional cases:

•Breakage

•Revisions

TAB. 6.7A

6.5 LUBRICATION

Use preferably CASTROL MAGNA GC 32 or equivalent oil

Furthermore, we recommend to lubricate the driver blade every 200 working hours.

Unsuitable lubricants may cause valve seal problems (seals may become too large) and consequent Valve

jamming.

Maintenance

V-naildriverblade

Movable parts lubrication

V-nails claw heads

“L” shaped supports (V-nails

guide)

Description

Replacement every 1.000.000 V-nails shot

Lubricate the driver blade every 200

working hours

Replacement every 5.000.000 V-nails shot

Machine state

Isolation for maintenance

MAINTENANCE

Valves and Reducers

Frontal and vertical clamping

gaskets

DESCRIPTION

Suggested replacement every 6/8 million of

V-nails shot

Replacement in case of leak of air

MACHINE STATE

Isolation for maintenance

MinigrafM3

7. DIAGNOSTIC

7.1 SAFETY WARNINGS

The interventions must be executed by personnel properly trained and they must take all precautions in order to avoid

accidental starts.

7.2 TROUBLESHOOTING

TABLE 7. 2 -A

TROUBLE