Promac 331C User manual

Operating Instructions
Belt Sander
Model 331C/331Y
Contents
Safety Instructions
ConformityDeclaration
Technical Data
Unpacking and Check List
Assembling the Sanding Arm
Adjusting the Belt
Replacing the Belt –Tips
Replacing the Drive Roller
Sanding Examples
Sander Pedestal
Exploded View
Spare Parts List
Wiring Diagram & Electrical Components page
Warranty
This machine complies with the European Directives 1

331C / 331Y
Sander
Bandschleifmaschine
Touret à bande
CE-Conformity Declara on
CE-Konformitätserklärung
Déclara on de Conformité CE
Product / Produkt / Produit:
Brand / Marke / Marque:
PROMAC
Manufacturer / Hersteller / Fabricant:
JPW (Tool) AG, Tämperlistrasse 5, CH-8117 Fällanden
Schweiz / Suisse / Switzerland
We hereby declare that this product complies with the regula ns
Wir erklären hiermit, dass dieses Produkt der folgenden Richtlinie entspricht
Par la présente, nous déclarons que ce produit correspond aux dire ves suivantes
2006/42/EC
Machinery Direc ve
Maschinenrichtlinie
Direc ve Machines
2014/30/EU
electromagne compa bility
elektromagne sche Verträglichkeit
compa bilité électromagné que
designed in considera on of the standards
und entsprechend folgender zusätzlicher Normen entwickelt wurde
et été développé dans le respect des normes complémentaires suivantes
EN ISO 12100:2010
EN 61029-1:2009+A11:2010
EN 61029-2-4:2011
EN 61000-6-4:2007
EN 61000-6-2:2005
Responsible for the Documenta on / Dokumenta ons-Verantwortung / Résponsabilité de Documenta on:
Hansjörg Meier
Head Product-Mgmt. / Leiter Produkt-Mgmt. / Resp. Ges on des Produits
JPW (Tool) AG
2017-10-13 Jan Dätwyler, General Manager
JPW (Tool) AG, Tämperlistrasse 5, CH-8117 Fällanden
Schweiz / Suisse / Switzerland

Safety Instructions
Note: Failure to follow these Safety Instructions can result in serious injury.
As with all machines, there are typical dangers associated with the operation and handling of a Sanding Belt.
Careful operation and correct handling of the machine significantly reduce the risk of accidents. However, if
normal precautionary measures are disregarded, risks of accident for the operator are unavoidable.
The design of this machine is specific to its intended use. Therefore, we strongly advise against carrying out any
modifications of the machine or forcing it force it to perform tasks for which it has not been designed.
If you have any questions about the use of this machine and if you do not find the appropriate answer in this
Instructions Manual, please contact your dealer who will be able to help you.
General safety rules and guidelines for handling machines
1. For your own safety, first read and become familiar with the entire Instructions Manual before
operating the machine. Learn the machine’s applications, its operating limits, and specific hazards.
This Manual gives also information about the risks involved in case of negligence.
2. Keep guards in place and in perfect working order, do not remove them.
3. Always connect the electrical machinery equipped with mains plug with protective contact (earth contact)
to a socket with earth contact.
When using adapters without earth contact, connect directly to the earth terminal of the machine. Never
start a machine that is not connected to an outlet with ground connection.
4. Before turning the machine ON, remove loose clamping levers or keys from the machine. Systematically
make sure that there are no loose parts near the moving elements.
5. Provide sufficient working space around the machine. Cluttered work stations and benches invite
accidents.
6. Do not operate the machine in a dangerous environment. Do not use the machine in wet or damp areas
and do not expose it to rain. Always keep the work area and workstation well lit.
7. Keep children and visitors away from the machine and at a safe distance from the machine and from the
work area.
8. Secure the workshop or workroom against unauthorised access. Fit child safety devices, e.g., door
latches, lockable main switches, etc. in order to prevent children from turning on.
9. Do not overload the machine. Its performance will be better and the operation safer if it is operated within
the specified ranges without exceeding the capacities for which it has been designed.
10. Do not use the machine to perform tasks for which it is not designed. The machine is exclusively designed
for its intended use.
11. Wear appropriate clothing. Do not wearloose clothing, gloves, neckties, rings, necklaces or bracelets and
other jewellery that may be caught in moving parts of the machine. Wear non-slip footwear. Wear protective
hair covering to contain long hair.
12. Always wear safety glasses and a dust mask, if necessary. Proceed according to the accident
prevention regulations.
13. Always secure the workpiece in a vice or clamping device. Holding the workpiece with the hands is risky
and it is recommended that both hands remain available for handling the machine.
2 14. Do not overreach. Keep proper footing and balance at all times.

3
15. Always keep the machine in good working order. Keep the cutting faces sharp and clean for optimum
performance. Follow the instructions for cleaning, lubricating and replacing accessory equipment/tools.
16. Always disconnect the machine from the mains before carrying out any maintenance work or replacing
machine parts such as saw blade, drill bits, cutting tools etc.
17. Only use the recommended accessories. Follow the instructions in the User Manual. The use of
unsuitable accessories may cause accidents.
18. Prevent any accidental starting. Before connecting the equipment to the mains, always check that the
operating switch is in OFF position (O).
19. Never stand on the machine. Any tipping over of the machine or contact with the cutting tool can result
in very severe accidents.
20. Check for damaged parts. Damaged guards or parts should be properly repaired or replaced before
further operation.
21. Never leave a running machine unattended. Always switch off the mains supply. Do not leave the
machine unattended until it has come to a complete standstill.
22. Never operate the machine if you are under the influence of alcohol, medication or drugs.
Always wear safety glasses!

4
Technical Data
MODEL
331C
331Y
Motor
0.75 KW
Power
400V/50Hz/3Ph
230V/50Hz/1Ph
Belt size
100x1220mm
Belt speed
19m/sec.
Rubber roller - Dimensions
126x105mm
Sanding surface
320x105mm
Overall dimensions(L x W x H)
650x380x260mm
Height with pedestal
1070mm
Weight
28 Kg
Pedestal dimensions
380x395x810mm
Machine Description
Sanding guard Work area 1
Safety glass
Motor Sanding stop
Switch Side protection
Sanding belt
Belt tension Work area 2
lever
Belt adjustment knob Table
Cable
Suction
connection
Pedestal
Noise level: less than 75 dB

Unpacking and Check List
5
Packaging detail Sanding machine
Sanding table
Safety glass Sanding stop
1 Stop
2 6mm Allen wrench
3 12mm flat wrench
4 Sleeve
Suction connec-
tion adapter
No.
Description
Pcs
1
Glass
1
2
Supporting bracket
1
3
Screw 1/4" x 1/2"
1
4
Washer M6 x 18 x 2
1
5
Spring washer 1/4"
1
6
Wing nut 1/4"
1
7
Screw 3/16" x 7/16"
2
8
Washer 3/16" x 12 x 0.8
2
9
Nut 3/16"
2

6
Installing the Sanding Arm
1. Installing the sanding stop
Set the lever so that the belt is tensioned. The belt is
not tensioned upon delivery of the machine. Mount the
stop as shown in the scheme, without the belt touching
the stop.
Distance between belt
and stop is enough. Belt is in contact with the
stop.
2. Installing the work table
Assemble as shown in the scheme, keeping a
distance of 3mm between the belt and the table.
Keep a distance of
3mm between the
table and the belt.
3. Installing the suction connection
system
Mount the suction connection adapter as shown in
the scheme. See page 13 for more information.
4. Installing the safety glass
Proceed as shown in the scheme.
See page 13 for more information.
5. Adjusting the safety glass
Adjust the safety glass so that the protection is
optimal.

Adjusting the Belt
7
Adjustment
1. Connect the plug to the motor.
2. Turning the
adjustment knob
clockwise makes
the belt running to
the left while
turning the knob
anti-clockwise
makes the belt
running to the right.
CAUTION: Rotate gently to adjust.
3. Turn the belt by hand and, using the
adjustment knob, adjust the belt in the
middle.
4. Start the motor and fine-tune the setting.
Belt tension
Stop the machine and cut off the power. The belt
tension is a factory setting (at the time of manufacture)
but a correction may be made, or must be made.
Proceed as described below:
1. Move the cover.
2. Turn the lever 120° to release the belt.
3. Release the nut using the special flat spanner.
4a. The belt is not tight enough. Turn the nut
upwards.
4b. The belt is too tight. Turn the nut downwards.
5. Information
One turn of the nut increases or decreases the
tension by 2.5mm.
6. Tighten the counter nut, close the cover, and
tension the belt using the lever.
7. After correcting the tension, re-adjust the belt
centring as described above.

Replacing the Belt
Release the belt using the lever.
Remove the side guard and remove the belt from
the rollers.
Install the new belt, paying attention to the
sanding direction.
Tension the belt using the lever.
Adjust the belt as described on page 7.
Tips
Transporting the machine
1. The machine weighs 34Kg, including the pedestal.
2. If you intend to or must move or re-position the machine, ask for help or use a lifting and transporting
device.
Environment
1. Make sure that the room where the sander is located is well lit and ventilated.
2. A light intensity of 300Lux is sufficient.
Electrical connection and operation
1. This machine is equipped with a 4-wire cable for 400/50/3 connection.
For connection to the mains, use equipment complying with article 5.3 of the EN60204-1 standards.
2. For protection, we recommend to use 6A fuses.
3. The power supply in terms of frequency, voltage and number of phases must comply with the wiring diagram.
4. The correct rotation direction of the sander will be achieved by reversing 2 phases of the power supply, if
necessary.
5. Always disconnect the machine from the mains when not in use, and to perform maintenance or adjustments
works.
6. Le yellow/green ground cable must be connected to the ground of your electrical installation.
To start and stop the machine.
1. "Start" Press "I"
8
2. "Stop" Press "O"

Replacing the Drive Roller
9
1. Disconnect the machine from the mains.
Remove the guard and the belt as described.
2. Remove the fan cover. Hold the motor shaft with a
screwdriver, do not hold the fan.
3. Remove the nut from the roller, as described.
4. Remove the aluminium roller and replace it with a
new one.

Sanding Examples
10
Example 1
Sanding with the roller.
Place the workpiece on the table and move it to the
corner of the table.
Protect the belt with the stop.
Example 2
Flat sanding.
Remove the top guard. Place the workpiece on the
belt and secure with the stop.
Example 3
Suction
.
Sanding generates dust, which contaminates the
atmosphere.
PROMAC machines are manufactured with a 35mm
dust extraction system. You will find in the PROMAC
Catalogue the dust extraction system to be connected
to these machines.

Machine Pedestal (stand)
11
1. Unpacking and Check List
No.
Description
Qty.
1
Front & Rear face
2
2
Right & Left side
2
3
Plate
1
4
Bolt 5/16" -18NCx3/4"
4
5
Bolt 5/16" -18NCx3/4"
16
6
Washer 5/16"
28
8
Washer 5/16"
24
9
Nut 5/16-18NCx2
24
11. Assembling

Assembling the Pedestal (stand)
1
2

Exploded View
éclatée
13

Spare Parts List
14
1. PM - 331001 Screw
2. PM - 331002 Screw
3. PM - 331003 Spring washer
4. PM - 331004 Support bracket
5. PM - 331005 Housing
6. PM - 331006 Screw
7. PM - 331007 Bushing
8. PM - 331008 Rail
9. PM - 331009 Sanding plate
10. PM - 331010 Label
11. PM - 331011 Flange
12. PM - 331012 Nut
13. PM - 331013 Flange
14. PM - 331014 Threaded rod
15. PM - 331015 Nut
16. PM - 331016 Block
17. PM - 331017 Pin
18. PM - 331018 Supporting bracket
19. PM - 331019 Spring
20. PM - 331020 Flange
21. PM - 331021 Guide
22. PM - 331022 Screw
23. PM - 331023 Plate
24. PM - 331024 Guide
25. PM - 331025 Protective cover
26. PM - 331026 Alu roller
27. PM - 331027 Nut
28. PM - 331028 Rubber roller
29. PM - 331029 Circlip
30. PM - 331030 Ball bearing
31. PM - 331031 Bushing
32. PM - 331032 Shaft
33. PM - 331033 Circlip
35. PM - 331035 Washer
36. PM - 331036 Shaft
37. PM - 331037 Cover
38. PM - 331038 Screw
39. PM - 331039 Knob
40. PM - 331040 Spindle
41. PM - 331041 Pin
44. PM - 331044 Screw
45. PM - 331045 Washer
47. PM - 331047 Cover
48. PM - 331048 Control knob
49. PM - 331049 Spring
50. PM - 331050 Washer
51. PM - 331051 Screw
52. PM - 331052 Washer
53. PM - 331053 Table
54. PM - 331054 Stop
55. PM - 331055 Wing nut
56. PM - 331056 Holder
57. PM - 331057 Screw
58. PM - 331058 Washer
59. PM - 331059 Screw
60. PM - 331060 Suction connection
61. PM - 331061 Safety glass
62. PM - 331062 Washer
63. PM - 331063 Nut
64. PM - 331064 Screw
65. PM - 331065 Motor cover
66. PM - 331066 Fan
67. PM - 331067 Motor flange
68. PM - 331068 Ball bearing
64.-73.
PM - 331070 Motor, complete
71. PM - 331071 Ball bearing
72. PM - 331072 Motor flange
73. PM - 331073 Screw
74.-77.
PM - 331074 Switch, complete
78. PM - 331078 Supporting bracket
79. PM - 331079 Screw
80. PM - 331080 Fitting
81. Cable
82. PM - 331082 Cover
83. PM - 331083 Gasket
84. PM - 331084 Screw
88. PM - 331088 Plug
89. PM - 331089 Connector
90. PM - 331090 Gasket
92. PM - 331092 Housing
93. PM - 331093 Screw
94. PM - 331094 Washer
95. PM - 331095 Gasket
96. PM - 331096 Screw
97. PM - 331097 Washer
98. PM - 331098 Washer
100.PM - 331100 Screw
Sanding belts
Sanding belt 100x1220mm, Pack of 5 pieces..
9869 Sanding belt Grain size 60
9870 Sanding belt Grain size 80
9871 Sanding belt Grain size 100
9872 Sanding belt Grain 120
9873 Sanding belt Grain size 180

Wiring Diagram
15
Electrical Components
Designation
Description
Switch
IP 65
KM
Contactor
AC3-1-1, 660 VAC, 20A
IEC 158-1, VDE 0660
FR
Relay
1.6 - 2.5A
2.0
IEC 292-1, BS775
SB1
"Stop" switch
SB2
"Start" switch
XS
Motor stop
500 VAC, 10A
VDE, CSA, UL, B
XP
Motor plug
500 VAC, 10A
VDE, CSA, UL, B
Cable
VCTF, 4x0.75mm2
VDE

Warranty / Garantie
TOOL FRANCE SARL guarantees that the supplied product(s) is/are free from material defects and manufacturing
faults. This warranty does not cover any defects which are caused, either directly or indirectly, by incorrect use,
carelessness, damage due to accidents, repairs or inadequate maintenance or cleaning as well as normal wear
and tear.
Further details on warranty (e.g. warranty period) can be found in the General Terms and Conditions (GTC) that
are an integral part of the contract.
These GTC may be viewed on the website of your dealer or sent to you upon request.
TOOL FRANCE SARL reserves the right to make changes to the product and accessories at any time.
TOOL FRANCE SARL garantiert, dass das/die von ihr gelieferte/n Produkt/e frei von Material- und
Herstellungsfehlern ist. Diese Garantie deckt keinerlei Mängel, Schäden und Fehler ab, die - direkt oder indirekt
- durch falsche oder nicht sachgemäße Verwendung, Fahrlässigkeit, Unfallschäden, Reparaturen oder
unzureichende Wartungs- oder Reinigungsarbeiten sowie durch natürliche Abnutzung durch den Gebrauch
verursacht werden.
Weitere Einzelheiten zur Garantie können den allgemeinen Geschäftsbedingungen (AGB) entnommen werden.
Diese können Ihnen auf Wunsch per Post oder Mail zugesendet werden.
TOOL FRANCE SARL behält sich das Recht vor, jederzeit Änderungen am Produkt und am Zubehör
vorzunehmen.
TOOL FRANCE SARL garantit que le/les produit(s)fourni(s) est/sont exempt(s) de défauts matériels et de
défauts de fabrication.
Cette garantie ne couvre pas les défauts, dommages et défaillances causés, directement ou indirectement, par
l'utilisation incorrecte ou inadéquate, la négligence, les dommages accidentels, la réparation, la maintenance
ou le nettoyage incorrects et l'usure normale.
Vous pouvez trouver de plus amples détails sur la garantie dans les conditions générales (CG). Les CG peuvent
être envoyées sur demande par poste ou par e-mail.
TOOL FRANCE SARL se réserve le droit d'effectuer des changements sur le produit et les accessoires à tout
moment.
TOOL France SARL
9 Rue des Pyrénées
91090 LISSES France
www.promac.fr