Huvema HU 75 S User manual

HU 75 S - HU 150 S
BELT GRINDERS

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CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Table of conTenTs
1. General safety rules for all machines 3
Additional safety rules 4
2. Technical data 4
3. Installation 4
4. Connection to electricity supply 4
5. Belt tracking 4
6. Changing the belt 4
7. Operation of Belt Grinder 5
7.1 Contact Grinding 5
7.2 Surface Grinding 5
7.3 Height adjustment 5
7.4 Routine maintenance 5
8. Special accessories 5
9. Machine overview 5
10. Noise level measurement for Belt Grinders 6
10.1 Results HU 75 S 6
10.2 Results HU 150 S 6
11. Electric scheme 6
12. Parts list 7

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CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
belT grinders HU 75 s - HU 150 s
1.
general safeTy rUles for all macHines
N.B.: Read the instructions carefully in order to avoid any problems.
As with all machinery there are certain hazards involved with operation and use of this machine. Using the machine
with respect and caution will considerably lessen the possibility op personal injury. However, if normal safety
precautions are overlooked or ignored, personal injury to the operator may occur. Observe these rules insofar as they
are applicable to this particular machine.
This machine was designed for certain applications only. We strongly recommend that this machine NOT be modified
in any way and/or used for any application other than for which it was designed.
If you have any questions relative to its application DO NOT use the machine until you have contacted your dealer.
1. For your own safety read the instruction manual before operating the tool.
2. Keep all guards in place and in working order.
3. Ground all tools.
4. Remove adjusting keys and wrenches. Make a habit of checking the machine before turning it on.
5. Keep the work area clean. Cluttered areas and benches invite accidents.
6. Do not use in a dangerous environment, such as damp or wet locations or expose to rain. Always keep the work
area well-lit.
7. Keep children and visitors away. They must be kept at a safe distance from the machine at all times.
8. Make sure that the work area is not accessible to unauthorised persons. Use padlocks, master switches, remove
starter keys etc.
9. Never overload the machine. The capacity of the machine is at its largest when properly loaded.
10. Do not force the machine or attachment to do a job for which it was not designed.
11. Wear proper apparel. No loose clothing, gloves, neckties, rings, necklaces, bracelets or jewellery: they may get
caught in moving parts. No slip footwear is recommended. Wear a hairnet to contain long hair.
12. Always wear safety glasses and work according to safety regulations. Use a face or dust mask if operation is
dusty.
13. Always secure workpiece tightly using a vise or clamping device. This will keep both hands free to operate the
machine.
14. Do not overreach. Keep your proper footing and balance at all times.
15. Maintain tools in top condition. Keep them sharp and clean. Read the instructions carefully and follow the
instructions for cleaning, lubrication and tool replacement.
16. Lubricate the machine and fill all oil reservoirs before operation.
17. Disconnect tools before servicing and when changing accessories such as blades, bits, cutters etc.
18. Use only recommended accessories. Consult the owner’s manual for recommended accessories. The use of
improper accessories may cause hazards.
19. Avoid accidental starting. Make sure the on/off switch is in the “OFF” position before plugging in the power cord.
20. Never stand on the machine or tools. Serious injury could occur if the machine is tipped or if the cutting tool is
accidentally touched.
21. Check damaged parts. Replace or repair damaged parts immediately. Check machine for alignment of moving
parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its
operation.
22. Direction of feed. Feed work into a blade or cutter against the direction of rotation of the blade or cutter only.
23. Never leave tool running unattended. Do not turn power off until it has come to a complete stop.
24. Alcohol, medication, drugs. Never us the machine while under the influence of alcohol, medication or drugs.
25. Make sure the tool is disconnected from the power supply, before servicing, repairing etc.
26. Keep the original packing for future transport or relocation of the machine.

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CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
addiTional safeTy rUles
Always keep in mind that:
• the machine must be switched off and disconnected from the power supply during maintenance and repairs,
• clamped workpieces may only be measured when the machine is switched off.
Never lean over the machine, mind loose clothing, ties, jewellery etc. and wear a cap.
Do not remove safety devices or guards. Never use the machine while a guard is open.
Always use safety glasses for machining rough materials.
Burrs and chips should only be removed using a sweeper or other aid, never with your bare hands!
Never leave the machine running unattended.
2.
TecHnical daTa
Model HU 75 S HU 150 S
Motor KW 3,00 / 4,00 3,00 / 4,00
Contact Wheel Mm 200x75 200x150
Steering Roller Mm 225x75 225x150
Flat Grinding Mm 530 530
Belt Size Mm 2000x75 2000x150
Belt Speed Mm/sec. 34 34
Working Height Mm 475-1240 475-1240
Weight Kg 85 105
W x H x L mm 500x1010x1000 560x1010x1000
3.
insTallaTion
The machine is delivered in a wooden case. The machine should be placed on a level surface and secured by bolts
through the four base plate holes.
Check the following functions:
A) The belt moves freely.
B) The belt does not touch the grinding supports.
4.
connecTion To elecTriciTy sUpply
The S Belt Grinder has to be wired in by a competent electrician. The 3,0 KW motor is supplied with an Overload
Protection Switch and no-voltage release for direct connection to 3 x 400/415 V or 3 x 230 V, 50/60Hz. The
connection is only to be done with a 4-core cable (1.5mm2) short cable with plug, making a total electric interruption
possible. Fuse 16A (Please see enclosed electrical data sheet).
5.
belT Tracking
See gure 1
When first starting the machine, the belt may not run centrally on the contact wheel. This is corrected by turning the
tracking adjuster (6): clockwise - belt moves towards the left.; anticlockwise – belt moves towards the right.
6.
cHanging THe belT
See gure 1
A) Switch off the machine
B) Ensure he belt is at a complete standstill.
C) Remove the spark trap(1)
D) Open the side cover (12) by turning the handle.
E) Slacken the belt by moving the belt tension release lever (7) downwards.
F) Replace the belt. Note correct direction of rotary of the belt.
G) Tighten the belt by moving the belt tension release lever (7) upwards.
H) Close side cover (12) and re-mount spark trap(1).
Always wear safety glasses!

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CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
7.
operaTion of belT grinder
See gure 1
Eye protection and ear plugs are to be worn at all times!
7.1
conTacT grinding
When grinding against the contact wheel(3), ensure that the belt guard (5) is closed. The operator faces the contact
wheel(3) and holds the material to work up, with both hands. Hands must be placed away from the place to be
grinded, as the material will be warm during the operation. The material is pushed against the belt, resting on the
grinding support (2), if necessary. The material is turned and grinded on the required surfaces.
7.2
sUrface grinding
The operator faces the open belt guard (50 during surface grinding. The material is held with both hands and is
pushed hard against the top work support (4) the grinding foundation under the belt has to be clean.
7.3
HeigHT adjUsTmenT
Loosening clamp no.9 with an Allen key can do height- and angle adjustment.
7.4
roUTine mainTenance
Frequent cleaning, if necessary with compressed air so that wheel swart is removed. Normal maintenance of
the contact wheel and the steering roller. A commendable surface grinding can only be obtained when using a
completely clean grinding foundation. Otherwise this must be renewed. The belt must be replaced as required,
compare “Changing the belt”. Spark trap must be emptied frequently.
8.
special accessories
See gure 1
Exhaust with dust bag (Electric connection to the overload protection switch( 8)).
9.
macHine overview
1. Spark trap 7. Belt tension release lever
2. Front work support 8. Overload protection switch
3. Contact wheel 9. Clamp for angle & height adjustment
4. Top work support 10. Steering roller
5. Belt guard 11. Flange for motorized exhaust
6. Tracking adjuster 12. Side cover
Figure 1

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10.
noise level measUremenT for belT grinders
10.1
resUlTs HU 75 s
Sound power of the machine:
A: No load (idle) with exhaustion
B: When grinding flat bar 50x15 with exhaustion
Hz 63 125 250 500 1K 2K 4K A-Distance
A L Wa 73 76 91 82 85 88 88 93
B L Wa 70 74 86 81 84 88 91 93
Noise level on the place of operation:
A: 85 dB (A) no loaded (idled) with exhaustion
B: 88 dB (A) loaded with exhaustion
10.2
resUlTs HU 150 s
Noise level of the machine when grinding flat bar 50x15
HZ 63 125 250 500 IK 2K 4K A-Distance
LWA 73 74 80 84 86 89 90 96
Noise level on the place of operation: 90 dB (A)
11.
elecTric scHeme
Figure 2

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12.
parTs lisT
Figure 3

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Our products are frequently updated and improved. Minor changes may not yet be incorporated in this manual.
Always state the year of build, type and serial number of the machine in correspondence.
Manufacturer and importer assume no responsibility for defects which result from not reading the manual carefully
or wrong use of the machine. No rights can be derived from this manual.
All rights reserved. No part of this booklet may be reproduced in any form, by print, photoprint, microfilm or any
other means without written permission from the publisher.
© Huberts bv, Kennedylaan 14, Veghel, the Netherlands. Internet: www.huvema.nl

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CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
CE DECLARATION OF CONFORMITY
(in accordance with supplement II A of the Machinery Directive)
Huvema, trade name of Industrie & Handelsonderneming Huberts bv, Kennedylaan 14, 5466 AA Veghel, the
Netherlands,
person responsible for compiling the technical file:
L. Verberkt
Kennedylaan 14, 5466 AA Veghel, Nederland,
is to be held responsible for declaring that the Huvema machines
Belt grinders HU 75 S and HU 150 S
which this declaration relates to, conform to all applicable provisions of the following norm(s):
• Machinery Directive 2006/42/EC
• Electromagnetic Compatibility Directive 2004/108/EC
and, where applicable, conform to the following harmonised norm(s) or, parts thereof:
which this declaration relates to, are conform the following norms:
NEN-EN-ISO 12100:2010,NEN-EN-IEC 60204-1:2006/C11:2010,NEN-EN-IEC 61000-6-1:2007,
NEN-EN-IEC 61000-6-3:2007/A1:2011/C11:2012
Veghel, the Netherlands, July 2015
L. Verberkt
Managing director

2015 V1