joke JBS 400 User manual

J-BS 400
Belt grinder
Instruction Manual

1
List of contents
JOKE®Instruction manual belt grinder J-BS 400 2
1List of contents........................................................................................... Page 02
2 Tips on using the manual................................................................... Page 03
3 Safety instructions ............................................................................... Page 04
4 Warranty/Identification ..................................................................... Page 06
5 Operation/Maintenance/Care........................................................ Page 07
6 Telefax form ......................................................................................... Page 13

2
Tips on using the manual
JOKE®Instruction manual belt grinder J-BS 400 3
This manual has been written for the device user to ensure a prob-
lem-free operation, care and maintenance.
Important instructions and information concerning safety and op-
erational reliability have been highlighted.
The symbols used in the manual have the following meanings:
Working and operating processes which must be observed to the
letter to exclude any risk to persons.
CAUTION!
IMPORTANT! Working and operating processes which must be observed to the
letter to avoid any damage to the device.
INFORMATION! Technical information to which the device operator must give spe-
cial attention.
The illustrations and diagrams are numbered in sequence within
each chapter. Some of these illustrations have keys. References to il-
lustrations within the text e. g. (5.1/2) have the following meaning:
5.1 = Figure 5.1
2 = Position 2 in the key to the figure.
Please feel free to call our customer service department at any time
should you encounter technical problems which are not dealt with
in this manual:
Telephone [phone] / 8 39 - 0
Telefax +49 (0) 22 04 / 8 39 - 86
INFORMATION! www.joke.de
Spare parts lists and operating manuals for our products are to be found at
www.joke.de.

3
Safety instructions
JOKE®Instruction manual belt grinder J-BS 400 4
This device has been built according to the latest technical standards and
generally accepted safety regulations. Nevertheless, it can constitute dan-
ger to life and limb for operator or third parties and a hazard to the de-
vice itself or other equipment during use.
IMPORTANT (1) Only use the device if in perfect working order and for its intended pur-
pose. You must always pay attention to the instruction manual and sa-
fety instructions therein and be aware of the risks! Repair any faults
which could affect the device’s safety immediately by yourself or
have these repaired.
The unit is designed exclusively for grinding work with the tools listed
and approved in the JOKE®catalogue „Surface Finishing“. Any other
use will be deemed to be contrary to its intended purpose. The manu-
facturer cannot be held liable for any resulting damages. The risk is
borne solely by the user.
Correct use also includes compliance with the instruction manual and
an observation of the care and maintenance conditions.
(2) Keep the instruction manual handy at the device’s place of use.
(3) Pay attention to and observe generally applicable statutory and oth-
erwise binding regulations relating to accident prevention and envi-
ronmental protection in addition to the information provided in the in-
struction manual!
CAUTION!
(4) All personnel commissioned to work on or with the device must have
read this instruction manual, and particularly the safety instructions
chapter, before starting work. This applies especially for personnel who
only work with the device occasionally.
(5) Stop the device immediately should you notice changes to the device
or its operating behaviour that are relevant to its safety. Have these
remedied before restarting work.
(6) Do not carry out any modifications, additions or conversions to the de-
vice! This also applies to the installation and adjustment of safety e-
quipment.
IMPORTANT! (7) Spare parts must meet the technical requirements specified by the
manufacturer. This can only be guaranteed with original JOKE spare
parts.

3
Safety instructions
JOKE®Instruction manual belt grinder J-BS 400 5
(8) Any work on/with the device may only be carried out by quali-
fied, appropriately trained and authorised personnel. Pay atten-
tion to minimum statutory age limits!
CAUTION! (9) Wear safety goggles when working with thebelt grinder.
(10) Personnel undergoing training or in a general apprenticeship should
only be allowed to work with the machine under the constant supervi-
sion of an experienced operator!
(11) Restrain from any type of work that could jeopardise your safety.
(12) The device may only be used if all protective and safety equipment is
in place and in proper working order.
(13) Do not leave the device unattended when switched on!!
(14) Stop and secure the device immediately in the event of malfunctions!
Faults must remedied at once.

4
Warranty/identification
JOKE®Instruction manual belt grinder J-BS 400 6
Joisten & Kettenbaum warrant the correct manufacture of every Joisten &
Kettenbaum product which is delivered in accordance with the terms of
contract and delivery.
This warranty does not cover damages caused by normal wear and tear,
incorrect handling, negligent use, the fitting of non-original spare parts, ina-
dequate care and/or a failure to comply with this technical manual.
The device may only be used by appropriately trained personnel. If
it is not, all warranty claims will be forfeited according to the terms of
delivery.
IMPORTANT!
Device identification
The manufacturer’s code and type code, CE label and series number can
be found on the rear of the control units or in the case of the handpieces
on the handle sleeve.

5
Operation/maintenance/care
JOKE®Instruction manual belt grinder J-BS 400 7
Screwing the handpieces on to the micromotor
IMPORTANT! Firstly screw the handpiece carefully on to the motor by hand!
If resistance is felt before the thread is screwed to the stop position, the
drive shaft of the motor and the handpiece coupling do not interlock. In
this case, turn the handpiece shaft manually until the coupling engages.
Screw the handpiece hand-tight.
Do not use force! This will result in destruction of the motor bearing.
IMPORTANT!
rotate
center
Symbolic drawing

5
Operation/maintenance/care
JOKE®Instruction manual belt grinder J-BS 400 8
Unscrewing the handpieces from the micromotor
The handpieces are screw-fitted to the micromotor (with the exception of
the DIPROFILhand-filing machine). Screw the handpiece off by hand to
release.
Symbolic drawing
loosen
screw tight
micromotor
handpiece

5
Operation/maintenance/care
JOKE®Instruction manual belt grinder J-BS 400 9
Starting the belt grinder J-BS 400
The belt grinder is likewise connected to the micromotors, as with all other
handpieces.
Always work with protective goggles!
VORSICHT!
(1) Do not touch the grinding belt during work.
(2) The belt grinder must be protected against knocks, otherwise malfunc-
tioning of the device and excessive heat generation may occur.
(3) The belt grinder is only for dry use, since it is not designed for wet grind-
ing.
(4) With excessive working pressure, there is a risk that the grinding
belt will run out of the guide rollers.

5
Operation/maintenance/care
JOKE®Instruction manual belt grinder J-BS 400 10
Changing the grinding belt
Remove the grinding belt:
(1) Pull the clamping lever in the direction indicated by the arrow
(2) Remove the grinding belt from the drive wheel.
clamping lever
drive wheel
tensioning rolle
r
grinding belt
support rolle
r
Insert the grinding belt:
(1) Place the grinding belt on the drive wheel.
(2) Pull the clamping lever in the
direction indicated by the arrow.
(3) Wind the grinding belt around
the tensioning roller and support
roller.
Allow the motor to run at a low speed in order to check the correct
position of the grinding belt.
IMPORTANT!
V
er st e
ll
ung
S
chlei
f
bandhalt er
f
est st e
ll
en
lö
sen
Adjustment of the grinding belt position
In order to obtain the optimum working position
with the drive belt in each respective case,
the grinding belt holder can be
pivoted around the drive axle.
secure
loosen
adjustment
grinding belt holder
(1) Loosen screw with an Allen key.
(2) Pivot the grinding belt holder into the desired position.
(3) Tighten the screw.
CAUTION!