Jet 3520B Operating Instructions Manual

GB - ENGLISH

Operating Instructions

Dear Customer,

Many thanks for the confidence you have shown in us with the purchase of your new JET-machine. This manual has been
prepared for the owner and operators of a JET 3520B wood lathe to promote safety during installation, operation and maintenance
procedures. Please read and understand the information contained in these operating instructions and the accompanying
documents. To obtain maximum life and efficiency from your machine, and to use the machine safely, read this manual thoroughly
and follow instructions carefully.

…Table of Contents

1. Declaration of conformity

2. JET Warranty

3. Safety

Authorized use
General safety notes
Remaining hazards

4. Machine specifications
Technical data
Noise emission
Contents of delivery

5. Transport and start up
Transport and installation
Assembly
Mains connection
Dust collection
Starting operation

6. Machine operation

Correct operating position
Tool selection
Speed selection
Turning between centres
Bowl turning
Sanding and Finishing

7. Setup and adjustments

Changing spindle speeds
Headstock spindle lock
Headstock spindle index
Installing work holding
Adjusting tool rest
Adjusting tailstock

8. Maintenance and inspection

Adjusting bed clamping
Changing belt and bearings

9. Trouble shooting

10. Available accessories

1. Declaration of conformity

On our own responsibility we hereby
declare that this product complies with
the regulations* listed on page 2.
Designed in consideration with the
standards**.

2. JET Group Warranty

The JET Group makes every effort to
assure that its products meet high
quality and durability standards and
warrants to the original retail
consumer/purchaser of our products
that each product be free from defects
in materials and workmanship as
follows:

2 YEAR LIMITED WARRANTY ON
ALL PRODUCTS UNLESS
SPECIFIED OTHERWISE.

This Warranty does not apply to
defects due to directly or indirectly
misuse, abuse, negligence or
accidents, normal wear-and-tear,
repair or alterations outside our
facilities, or to a lack of maintenance.

The Jet group limits all implied
warranties to the period specified
above, from the date the product was
purchased at retail

To take advantage of this warranty, the
product or part must be returned for
examination, postage prepaid, to an
authorized repair station designated by
our office.
Proof of purchase date and an
explanation of the complaint must
accompany the merchandise.

If our inspection discloses a defect, we
will either repair or replace the product,
or refund the purchase price if we
cannot readily and quickly provide a
repair or replacement, if you are willing
to accept a refund.

We will return repaired product or
replacement at JET’S expense, but if it
is determined there is no defect, or that
the defect resulted from causes not
within the scope of JET’S warranty,
then the user must bear the cost of
storing and returning the product

The JET Group reserves the right to
make alterations to parts, fittings, and
accessory equipment which they may
deem necessary for any reason
whatsoever.

3. Safety

3.1 Authorized use

This wood lathe is designed for turning
wood only. Machining of other
materials is not permitted and may be
carried out in specific cases only after
consulting with the manufacturer.

The proper use also includes
compliance with the operating and
maintenance instructions given in this
manual.

The machine must be operated only by
persons familiar with its operation and
maintenance and who are familiar with
its hazards.

The required minimum age must be
observed.

The machine must only be used in a
technically perfect condition.

When working on the machine, all
safety mechanisms and covers must
be mounted.

In addition to the safety requirements
contained in these operating
instructions and your country’s
applicable regulations, you should
observe the generally recognized
technical rules concerning the
operation of woodworking machines.

Any other use exceeds authorization.
In the event of unauthorized use of the
machine, the manufacturer renounces
all liability and the responsibility is
transferred exclusively to the operator

3.2 General safety notes

Woodworking machines can be
dangerous if not used properly.
Therefore the appropriate general
technical rules as well as the following
notes must be observed.

Read and understand the entire
instruction manual before attempting
assembly or operation.

Keep this operating instruction close
by the machine, protected from dirt
and humidity, and pass it over to the
new owner if you part with the tool.

No changes to the machine may be
made.

Daily inspect the function and
existence of the safety appliances
before you start the machine.
Do not attempt operation in this case,
protect the machine by unplugging the
mains cable.

Remove all loose clothing and confine
long hair.

Before operating the machine, remove
tie, rings, watches, other jewellery, and
roll up sleeves above the elbows.

Wear safety shoes, never wear leisure
shoes or sandals.

Always wear the approved working
outfit.

Do not wear gloves.

Wear goggles when working

Install the machine so that there is
sufficient space for safe operation and
workpiece handling.

Keep work area well lighted.

The machine is designed to operate in
closed rooms and must be placed
stable on firm and levelled table
surface.

Make sure that the power cord does
not impede work and cause people to
trip.

Keep the floor around the machine
clean and free of scrap material, oil
and grease.

Stay alert!
Give your work undivided attention.
Use common sense. Do not operate
the machine when you are tired.

Do not operate the machine under the
influence of drugs, alcohol or any
medication. Be aware that medication
can change your behaviour.

Never reach into the machine while it
is operating or running down.

Never leave a running machine
unattended. Before you leave the
workplace switch off the machine.

Keep children and visitors a safe
distance from the work area.

Do not operate the electric tool near
inflammable liquids or gases.
Observe the fire fighting and fire alert
options, for example the fire
extinguisher operation and place.

Do not use the machine in a dump
environment and do not expose it to
rain or direct sunlight.

Wood dust is explosive and can also
represent a risk to health.
Dust form some tropical woods in
particular, and from hardwoods like
beach and oak, is classified as a
carcinogenic substance.
Always use a suitable dust collection
device

Before machining, remove any nails
and other foreign bodies from the
workpiece.

Make sure to guide and hold the chisel
with both hands safe and tight during
machining.

Work only with well sharpened tools.

Machine only stock which is chucked
securely on the machine, always check
before switching the machine on.

Provide workpieces with centre holes
before clamping between centres.

Work large and unbalanced
workpieces at low spindle speed only.

When sanding, remove the tool rest
from the machine.

Workpieces with cracks may not be
used.

Remove the chuck key or dowel pins
before turning the machine on.

Always close the belt cover.

Specifications regarding the maximum
or minimum size of the workpiece must
be observed.

Test each set-up by revolving the work
by hand to insure it clears the tool rest
and bed. Check setup at the lowest
speed before you increase to the
operating speed.

Do not remove chips and workpiece
parts until the machine is at a
standstill.

Never stop work pieces with the hand
during run out.

Do not attempt to engage the spindle
lock pin until the spindle has stopped.

Never take measurements on a
rotating workpiece.

Do not stand on the machine.

Do not obstrukt the air flow on heat
sinks of AC-drive (allow natural
cooling).

Connection and repair work on the
electrical installation may be carried
out by a qualified electrician only.
(Warning: Wait five minutes for DC-bus
capacitors discharge before accessing
the AC drive unit.)

Have a damaged or worn power cord
replaced immediately.

Make all machine adjustments or
maintenance with the machine
unplugged from the power source.

3.3 Remaining hazards

When using the machine according to
regulations some remaining hazards
may still exist.

The rotating workpiece can cause
injury.

Workpieces that are inhomogeneous
or weak can explode when being
processed due to centrifugal force.

Only process selected woods without
defects.

Unbalanced workpieces can be
hazardous.

Injuries can occur when feeding
tooling, if tool supports are not
correctly adjusted or if turning tools are
blunt.

Risk of kickback. The tooling is caught
by the rotating workpiece and thrown
back to the operator.

Thrown workpieces and workpiece
parts can lead to injury.

Dust and noise can be health hazards.
Be sure to wear personal protection
gear such as safety goggles and dust
mask. Use a suitable dust collection
system.

The use of incorrect mains supply or a
damaged power cord can lead to
injuries caused by electricity.

4. Machine specifications

4.1 Technical data

Swing over bed 508mm
Centre distance 800mm
Number of mechanical speeds 2
Spindle speed range 1 0-1200 rpm
Spindle speed range 2 0-3200 rpm
Spindle nose M33x3,5 DIN 800
Headstock spindle taper MT 2
Spindle index lock 24x15°, 36x10°
Spindle hole diameter 15,8mm
Tailstock spindle taper MT 2
Tailstock hole diameter 9,5mm
Tailstock ram travel 115mm
Centre above floor 1120mm

Overall (LxWxH) 1370x690x1470mm
Footprint (LxW) 1270x610mm
Net weight 326 kg

Mains 230V ~1/N/PE 50Hz
Output power 1,5 kW (2 HP) S1
Reference current 10 A
Extension cord (H07RN-F): 3x1,5mm²
Installation fuse protection 16A

4.2 Noise emission

Acoustic pressure level (EN 11202):
Idling 72,5 dB(A)
In operation 78,4 dB(A)

The specified values are emission
levels and are not necessarily to be
seen as safe operating levels.
As workplace conditions vary, this
information is intended to allow the user
to make a better estimation of the
hazards and risks involved only.

4.3 Content of delivery

Casting legs with levelling pads
350 mm tool rest
75 mm face plate
Spur centre and tooling knockout bar
Live centre
Guard
Tool caddy
Comparator centers
Remote ON/OFF switch
Operating tools
Assembly kit
Operating manual
Spare parts list.

Fig 1

5. Transport and start up

5.1 Transport and installation

The machine is designed to operate in
closed rooms and must be placed
stable on firm and levelled ground.

The machine can be bolted down if
required.

For packing reasons the machine is
not completely assembled

5.2 Assembly

If you notice transport damage while
unpacking, notify your supplier
immediately. Do not operate the
machine!

Dispose of the packing in an
environmentally friendly manner.

Clean all rust protected surfaces with a
mild solvent.

Attach the leg stand:

At this point the headstock, tailstock
and tool rest should be removed.

The machine bed is heavy! With the
help of a second person, carefully lift
bed up onto a workbench.

Attach the leg stand with 8 hex socket
cap screws and 8 flat washers (A, Fig

2).

Fig 2

Thread adjustable feet (D) into stand
leg (B).

Adjust the feet so that the lathe rests
evenly on the floor, and tighten the
nuts (C).

Reinstall headstock, tailstock and tool
rest.

Tool caddy assembly:

Mount the tool caddy with two screws
and lock washers to the left leg (Fig 3)

Fig 3

The tailstock body can also be used to
store tools (Fig 4).

Fig 4

Stand shelf:

You can make an extra shelf that rests
between the legs if you wish (Fig 5-7).