Pfaff 8304-040 User manual

8304
Instruction Manual
296-12-18 419/002
Betriebsanleitung engl. 08.2002
-040
-042
This instruction manual applies to machines from the
following serial numbers onwards:
# 15055
From the library of: Diamond Needle Corp

The reprinting, copying or translation of PFAFF instruction manuals, whether in whole or in
part, is only permitted with our previous consent and with written reference to the source.
PFAFF Industrie Maschinen AG
Postfach 3020
D-67653 Kaiserslautern
Königstr. 154
D-67655 Kaiserslautern
Redaktion / Illustration
PFAFF
Dept. TES
From the library of: Diamond Needle Corp

Contents
Contents ................................................................................. Chapter - Page
1Safety ........................................................................................................................... 1 - 1
1.01 Regulations ................................................................................................................... 1 - 1
1.02 General notes on safety ................................................................................................ 1 - 1
1.03 Safety symbols ............................................................................................................. 1 -2
1.04 Important points for the user ........................................................................................ 1 - 2
1.05 Operating and technical personnel ................................................................................ 1 - 3
1.05.01 Operating personnel...................................................................................................... 1- 3
1.05.02 Technical personnel ...................................................................................................... 1- 3
1.06 Danger warning ............................................................................................................. 1 -4
2Proper use.................................................................................................................... 2 -1
3Specifications .............................................................................................................. 3 - 1
4Disposal of the machine ............................................................................................. 4 - 1
5Transport, packing and storage ................................................................................. 5 - 1
5.01 Transport to the customer’s premises .......................................................................... 5 - 1
5.02 Transport within the customer’s premises.................................................................... 5 - 1
5.03 Disposal of packing ....................................................................................................... 5 - 1
5.04 Storage ......................................................................................................................... 5 - 1
6Explanation of the symbols ........................................................................................ 6 - 1
7Controls ....................................................................................................................... 7- 1
7.01 Main switch ..................................................................................................................7- 1
7.02 Foot switch ................................................................................................................... 7 - 1
7.03 Knee switch (only on machines with tape-cutting device) ............................................. 7 - 2
7.04 Temperature regulator / fault indicator .......................................................................... 7 - 2
7.05 Status display of temperature control ........................................................................... 7 - 3
7.06 Regulator for drive roller start delay .............................................................................. 7 - 3
7.07 Tape feed regulator/hot-sealing speed .......................................................................... 7 - 4
7.08 Selection switch for operational modes ........................................................................ 7 - 4
7.09 Regulator for hot-air pressure ....................................................................................... 7 - 5
7.10 Regulator for feed roller pressure ................................................................................. 7 - 5
7.11 Penetration depth adjustment ring ................................................................................ 7 - 6
7.12 Tape feed regulator / time delay after trimming ............................................................ 7 - 6
From the library of: Diamond Needle Corp

Contents
Contents ................................................................................. Chapter - Page
8Installation and commissioning ................................................................................. 8 - 1
8.01 Installation ..................................................................................................................... 8 - 1
8.01.01 Adjusting the table height ............................................................................................. 8 - 1
8.01.02 Connecting the compressed air .................................................................................... 8 - 2
8.01.03 Fitting the tape reel bracket .......................................................................................... 8 - 2
8.02 Commissioning ............................................................................................................. 8 - 3
8.03 Switching the machine on/off ....................................................................................... 8 - 3
9Setting up .................................................................................................................... 9 -1
9.01 Inserting the sealing tape .............................................................................................. 9 - 1
9.01.01 Adjusting the tape reel bracket to the diameter of the tape reel core ........................... 9 - 1
9.01.02 Inserting the heat-sealing tape / Adjusting the tape width and the tape brake .............. 9 - 2
9.02 Adjusting the penetration depth .................................................................................... 9 - 3
9.03 Setting the feed motion of the sealing tape .................................................................. 9 - 3
9.04 Hot-air pressure, hot-sealing temperature, -pressure and -speed.................................. 9 - 4
10 Heat sealing ............................................................................................................... 10 - 1
10.01 Heat-sealing principle .................................................................................................. 10 - 1
10.02 Heat-sealing process................................................................................................... 10 - 2
11 Care and maintenance .............................................................................................. 11 - 1
11.01 Clean hot-air nozzle ..................................................................................................... 11 - 1
11.02 Check the air pressure ................................................................................................ 11 - 2
11.03 Draining the water bowl of the air filter/regulator/cleaning the filter............................ 11 - 2
11.04 Draining the water bowl of the fine filter/changing the fine filter ................................ 11 - 3
11.05 Lubricating the drive chains ........................................................................................ 11 - 4
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Contents
Contents ................................................................................. Chapter - Page
12 Adjustment ................................................................................................................ 12 - 1
12.01 Notes on adjustment................................................................................................... 12 - 1
12.02 Tools, gauges and other equipment ............................................................................ 12 - 1
12.03 Hot-air nozzle .............................................................................................................. 12 - 2
12.04 Distance of hot-air nozzle from the feed rollers ........................................................... 12 - 3
12.05 Changing the heating cartridge ................................................................................... 12 - 4
12.06 Changing the temperature probe ................................................................................ 12 - 5
12.07 Drive chains ................................................................................................................ 12 - 6
12.07.01 Tensioning the main drive chains ................................................................................ 12 - 6
12.07.02 Tensioning drive chains to post ................................................................................... 12 - 7
12.07.03 Tensioning drive chain in bottom post and to top feed roller ....................................... 12 - 8
12.08 Fuses .......................................................................................................................... 12 - 9
12.09 Tape-cutting device................................................................................................... 12 - 10
12.09.01 Knife ............................................................................................................................ 12 - 10
12.09.02 Air jet setting............................................................................................................... 12 - 11
12.09.03 Throttling the pressure and drive roller........................................................................ 12 - 12
13 Circuit diagrams ........................................................................................................ 13 - 1
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Safety
1 - 1
1 Safety
1.01 Regulations
This machine was built in accordance with the European regulations listed in the conformity
and manufacturer’s declarations.
In addition to this instruction manual, also observe all generally accepted statutory and other
regulations and legal requirements - including those of the country in which the machine will
be operated and all valid environmental-protection regulations. Regionally applicable
regulations of the social insurance society for occupational accidents or other supervisory
organisations are to be strictly adhered to!
1.02 General notes on safety
●This machine may only be operated by adequately trained operators and only after the
instruction manual has been completely read and understood !
●The danger and safety instructions on the machine itself are to be followed!
●The machine may only be used for the purpose for which it was intended and must not
be operated without its safety devices. Observe all relevant safety regulations!
●When replacing the feed rollers or the hot wedge, when leaving the workplace
unattended and during servicing or repairs, the machine must be switched off at the
mains switch and the plug pulled!
●Daily servicing work may be carried out only by appropriately trained personnel!
●Repairs and special maintenance work may be carried out only by technicians or persons
with appropriate training!
●Work on the electrical equipment may be carried out only by qualified electricians!
●Work is not permitted on live parts and equipment! Exceptions to this are contained in
the regulations EN 50110.
●Modifications and alterations to the machine may only be carried out under observance of
all the relevant safety regulations!
●Only spare parts which have been approved by us are to be used for repairs! We
expressly point out that any replacement parts or accessories not supplied by us have not
been tested and approved by us. The installation and/or use of any such products can
lead to negative changes in the structural characteristics of the machine. We shall not be
liable for any damage which may be caused by non-original parts.
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Safety
1 - 2
1.03 Safety symbols
Danger!
Special points to observe.
Danger of hands being crushed!
Danger of burns from hot surface!
Danger from electric voltage!
o
o
o
o
Caution
Do not operate without finger guard and safety devices.
Turn off the main switch and let the machine cool
down before any setting up, maintenance or cleaning
work!
1.04 Important points for the user
●This instruction manual is a component part of the machine and must be available to
operating personnel at all times.
The instruction manual must be read before commissioning the machine.
●The operating and technical personnel are to be instructed as to the machine’s safety
mechanisms and with regard to safe working methods.
●It is the duty of the owner to operate the machine only when it is in perfect running order.
●The owner is obliged to ensure that none of the safety mechanisms are removed from
the machine or deactivated.
●When processing PVC, PTFE and similar materials, the user must ensure that the
maximum permissible level of toxic fumes is not exceeded.
For further information please refer to the sales agency responsible.
From the library of: Diamond Needle Corp

Safety
1 - 3
1.05 Operating and technical personnel
1.05.01 Operating personnel
Operating personnel are persons responsible for setting up, operating and cleaning the
machine as well as for eliminating any faults which may occur.
Operating personnel must observe the following:
●Always comply with the notes on safety in the instruction manual!
●Never adopt a working method which could have an adverse effect on the level of safety
in using the machine!
●Never wear loose-fitting clothing or jewelry such as chains or rings!
●Ensure that only authorized persons have access to the danger zone around the machine.
●Always report any changes in the machine, which may limit its safety, to the
immediately!
1.05.02 Technical personnel
Technical personnel are persons with special training in the fields of electrical/electronics
engineering and mechanics. They are responsible for the lubrication, maintenance and
repair of the machine.
Technical personnel must observe the following:
●always comply with the notes on safety in the instruction manual!
●switch the machine off at the main switch before carrying out servicing or repair work!
●never work on live parts and equipment! Exceptions are contained in the regulations EN
50110.
●replace the protective coverings after all repairs or maintenance work.
From the library of: Diamond Needle Corp

Safety
1 - 4
Do not operate the machine without the protective cover 1!
Danger of burns if the hot air nozzle 2is touched!
Do not put your fingers between protective cover 1and swivel unit 3!
Danger of crushing when swivel unit 3is swung in and out of place!
1.06 Danger warning
3
Fig. 1 - 01
1
2
3
From the library of: Diamond Needle Corp

Proper use
2 - 1
2 Proper use
The PFAFF 8304-040 is a hot-air sealing machine with front off-set post.
The PFAFF 8304-042 is a hot-air sealing machine with rear off-set post.
The purpose of the machines is to heat-seal seams on waterproof and breathable membrane
sheeting for leisure and hiking shoes and for all kinds of sportswear and weatherproof
clothing, using a heat-sealing tape.
Any and all uses of this machine which have not been approved of by the
manufacturer are considered to be inappropriate! The manufacturer cannot be
held liable for any damage caused by inappropriate use of the machine!
Appropriate use of the machine presupposes the observance of all operational,
adjustment, maintenance and repair measures required by the manufacturer!
From the library of: Diamond Needle Corp

Specifications
3 - 1
3 Specifications ▲
Dimensions and weight:
Length:.................................................................................................... approx. 1265 mm
Breadth: .................................................................................................... approx. 600 mm
Height: (without tape reel bracket) ......................................................... approx. 1450 mm
Weight: ........................................................................................................ approx. 110 kg
Mains voltage
set for: ...................................................................... 230 V± 10%, 50/60 Hz, single-phase
Power input: .............................................................................................. approx. 3300 W
Max. heating capacity: ............................................................................................ 3000 W
Mains fuse protection: .................................................................................................. 16A
Working air pressure ................................................................................................... 6 bar
Air consumption ...............................................................................................60-120l/min.
Hot air pressure .................................................................................................. 0.2 - 2 bar
Max. heat-sealing temperature: .................................................... 650°C, infinitely variable
Heat-sealing tape width: ................................................................................. up to 30 mm
Fusible membrane sheet materials: ........................................... ●Goretex
●Sympatex
●Puratex
●Membrane fabrics for
shoes
●2- and 3-ply laminates
▲ Subject to alteration
From the library of: Diamond Needle Corp

Disposal of the machine
4 - 1
4 Disposal of the machine
●The proper disposal of the machine is the responsibility of the customer.
●The materials used on the machine are steel, aluminium, brass and various plastics.
The electrical equipment consists of plastics and copper.
●The machine is to be disposed of in accordance with the locally valid environmental
protection regulations.
Special care is to be taken that parts soiled with lubricants are disposed of
separately in accordance with the locally valid environmental protection
regulations.
From the library of: Diamond Needle Corp

Transport, packing and storage
5 Transport, packing and storage
5.01 Transport to the customer’s premises
Within Germany the machine is delivered without packing. Machines for export are packed.
5.02 Transport within the customer’s premises
The manufacturer bears no liability for transport within the customer’s premises.
5.03 Disposal of packing
The packing of this machine consists of paper, cardboard, fusible fabric and wood. Proper
disposal of the packing is the responsibility of the customer.
5.04 Storage
If not in use, the machine can be stored for up to six months as it is. During this time it
should be protected against dust and dampness.
If the machine is stored for longer periods, its parts, especially moving parts, must be
protected against corrosion, e.g. by a film of oil.
5 - 1
From the library of: Diamond Needle Corp

Explanation of the symbols
6 - 1
6 Explanation of the symbols
In this Instruction Manual, tasks to be carried out and important information are drawn to
your attention by symbols. The symbols have the following meanings:
Note, information
Cleaning, care
Lubrication
Servicing, repairing, adjustment, maintenance
(only to be carried out by specialist personnel)
From the library of: Diamond Needle Corp

7 - 1
Controls
7 Controls
7.01 Main switch
●The machine is switched on or off by
turning main switch 1.
Position " 0 " : Machine is switched off
Position " I " : Machine is switched on
When switching off the
machine, please observe the
notes in Chapter 8.03
Switching the machine on
and off!
Fig. 7 - 01
1
7.02 Foot switch
●The heat-sealing process is carried out
using the 2 positions of foot switch 1.
Position 1: Positioning the workpiece (top
feed roller is lowered)
Position 2: Starting the heat-sealing
process (the hot-air nozzle is
swung into position/feed rollers
are started)
The functions triggered by
pedal 1differ according to the
operational mode of the
machine (see Chapter 7.08
Operational modes-selection
switch).
Fig. 7 - 02
1
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Controls
7 - 2
7.03 Knee switch (only on machines with tape-cutting device)
●The heat-sealing tape is cut by operating
knee switch 1.
If required, the function can
also be triggered by a second
pedal, instead of by knee
switch 1.
Fig. 7 - 03
1
7.04 Temperature regulator / fault indicator
●The temperature can be set with the
buttons 1.
●Display 2shows the required value and
display 3the actual value.
●When the following faults occur, fault
indicator 4lights up:
- Fault on temperature regulator or sensor.
- Overheating of the heating cartridge.
When a fault has occurred:
●Eliminate the fault.
●Acknowledge elimination of fault by
pressing fault indicator button (lamp off).
Fig. 7 - 04
1
3
2
4
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7 - 3
Controls
7.05 Status display of temperature control
●Depending on the status of the
temperature control, diodes 1 - 6 light up.
Diode 1lights up when the actual
temperature deviates from the
required temperature by +/-50°C.
Diode 2lights up, if the temperature
exceeds 650°C, or if the sensor
breaks.
Diode 3- no function
Diode 4- no function
Diode 5lights up as soon as the heating is
switched on.
Diode 6lights up when the machine is
heated.
Fig. 7 - 05
1
3
2
4
5
6
7.06 Regulator for drive roller start delay
●On regulator 1the time can be set, when
the drive roller is activated after the hot-
air nozzle has been swung into position.
Fig. 7 - 06
1
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Controls
7 - 4
7.08 Selection switch for operational modes
●The operational modes of the machine
can be set with the selection switch 1by
means of four switch settings. The
functions are triggered by two switch
positions on the pedal.
1 = hot sealing
Position 1 - top feed roller is lowered
Position 2 - hot-air nozzle swings into
position, feed rollers run forwards
2 = Test run 1
Position 1 - top feed roller is lowered
Position 2 - hot-air nozzle swings into
position
3 = Test run 2
Position 1 - top feed roller is lowered
Position 2 - feed rollers run forwards
4 = Reverse
Position 1 - no function
Position 2 - feed rollers run backwards
Fig. 7 - 08
1
7.07 Tape feed regulator/hot-sealing speed
●The feed of the sealing band is set with
regulator 1.
●The hot-sealing speed is set with
regulator 2.
Fig. 7 - 07
2
1
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7 - 5
Controls
7.09 Regulator for hot-air pressure
●The hot-air pressure is adjusted by
turning regulator 1.
●The hot-air pressure level can be read
from pressure gauge 2.
The hot-air pressure must not
drop below 0.2 bar!
If the hot-air pressure is too
low, there is a risk of the
heating rod burning out. The
heating therefore switches off
automatically when the hot-air
pressure is too low.
Fig. 7 - 09
1
2
7.10 Regulator for feed roller pressure
●The feed roller pressure is adjusted by
turning regulator 1.
●The pressure level can be read from
pressure gauge 2.
Fig. 7 - 10
1
2
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Controls
7 - 6
7.11 Penetration depth adjustment ring
Switch off the machine!
Danger of crushing between
the housing and adjustment
ring 1.
●The penetration depth (feed roller
clearance) is set by turning adjustment
ring 1.
●Before turning adjustment ring 1, the
three screws 2must be loosened (see
also Chap. 9.02).
Fig. 7 - 11
21
Fig. 7 - 12
1
7.12 Tape feed regulator / time delay after trimming
●The tape feed is adjusted with regulator
1.
●With regulator 2the time delay can be
set between tape trimming and
disengagement of the hot air nozzle.
2
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