Jet JWDS-1632-M User manual

JWDS-1632-M
JWDS-1836-M
Drum Sander
Zylinderschleifmaschine
Ponceuse à cylindre rà cylindre
Original:
GB
Operating Instructions
Translations:
D
Gebrauchsanleitung
F
Mode d´emploi
JPW (Tool) AG
Tämperlistrasse 5
CH-8117 Fällanden
Switzerland
Phone [phone]
Fax [phone]
www.jettools.com
M-723520KM 2017-01
Shown with optional infeed/outfeed tables

2
CE-Conformity Declaration
CE-Konformitätserklärung
Déclaration de conformité CE
Product / Produkt / Produit:
Drum sander
Zylinderschleifmaschine
Ponceuse à cylindre
JWDS-1632-M / JWDS-1836-M
723520KM / 723530KM
Brand / Marke / Marque:
JET
Manufacturer / Hersteller / Fabricant:
JPW (Tool) AG, Tämperlistrasse 5, CH-8117 Fällanden, Switzerland
We hereby declare that this product complies with the regulations
Wir erklären hiermit, dass dieses Produkt der folgenden Richtlinie entspricht
Par la présente, nous déclarons que ce produit correspond aux directives suivantes
2006/42/EC
Machinery Directive / Maschinenrichtlinie / Directive Machines
2014/30/EU
Electromagnetic compatibility / elektromagnetische Verträglichkeit / compatibilité électromagnétique
designed in consideration of the standards
und entspechend folgender zusätzlicher Normen entwickelt wurde
et été développé dans le respect des normes complémentaires suivantes
EN ISO 12100:2010
EN 60204-1:2006+A1:2009
EN 61000-6-2:2005
EN 61000-6-4:2007+A1:2011
Responsible for the Documentation / Dokumentations-Verantwortung / Résponsabilité de Documentation:
Hansjörg Meier
Head Product-Mgmt / Leiter Produkt-Mgmt./ Resp. de Gestions Produits
JPW (Tool) AG
2017-1-06 Alain Schmid, General Manager
JPW (Tool) AG, Tämperlistrasse 5, CH-8117 Fällanden,
Switzerland / Schweiz / Suisse

3
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 JWDS-1632-M & JWDS-1836-M drum sander 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
Section Page
1. Declaration of conformity...................................................................................................................................................4
2. Warranty.............................................................................................................................................................................4
3. Safety .................................................................................................................................................................................4
3.1 Authorized use..............................................................................................................................................................4
3.3 General safety notes.....................................................................................................................................................4
3.3 Remaining hazards........................................................................................................................................................5
3.4 Labels and positions .....................................................................................................................................................5
4.0 Specifications ...................................................................................................................................................................6
5.0 Features and Terminology ...............................................................................................................................................7
6.0 Setup and assembly .........................................................................................................................................................8
6.1 Shipping contents ........................................................................................................................................................8
6.2 Tools required for assembly ........................................................................................................................................8
6.3 Assembling stand.........................................................................................................................................................9
6.4 Mounting sander to stand ...........................................................................................................................................9
6.5 Infeed and outfeed tables (optional accessory) ........................................................................................................10
6.6 Dust collection ...........................................................................................................................................................10
6.7 Installing abrasives.....................................................................................................................................................10
7.0 Electrical connections ....................................................................................................................................................11
8.0 Adjustments...................................................................................................................................................................11
8.1 Drum Height Control..................................................................................................................................................11
8.2 Depth scale ................................................................................................................................................................11
8.3 Conveyor belt tension/tracking .................................................................................................................................11
8.4 Inspecting drum alignment........................................................................................................................................12
8.5 Tension roller adjustment..........................................................................................................................................13
9.0 Operations .....................................................................................................................................................................13
9.1 Basic Operating Procedure ........................................................................................................................................13
9.2 Drum & belt motor operation....................................................................................................................................13
9.3 Setting depth of cut ...................................................................................................................................................13
9.4 Establishing drum height ...........................................................................................................................................14
9.5 Selecting SandSmart™ feed rates ..............................................................................................................................14
9.6 Maximum performance tips ......................................................................................................................................15
10.0 User-maintenance........................................................................................................................................................15
10.1 Cleaning and lubrication ..........................................................................................................................................16
10.2 Drum maintenance ..................................................................................................................................................16
10.3 Conveyor belt replacement .....................................................................................................................................16
10.4 Commutator brush inspection.................................................................................................................................17
10.5 Additional servicing .................................................................................................................................................17
11.0 Tracker kit ....................................................................................................................................................................17
12.0 Abrasives......................................................................................................................................................................19
12.1 Selecting drum abrasives .........................................................................................................................................19
12.2 Cleaning abrasive strips ...........................................................................................................................................19
12.3 Increasing abrasive life ............................................................................................................................................19
12.4 Abrasive selection guide ..........................................................................................................................................19
13.0 Troubleshooting JWDS-1632-M /-1836 Drum Sander .................................................................................................20
14.0 Optional accessories ....................................................................................................................................................21

4
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. Warranty
JPW (Tool) AG guarantees that the supplied product
is 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, accidental damage, repair, inadequate
maintenance or cleaning and normal wear and tear.
Any warranty details (i.e. warranty period) can be
found in the General Terms and Conditions (GTC) that
are integral part of the contract. These GTC can be
viewed at the website of your dealer or sent to you
upon request.
JPW (Tool) AG reserves the right to make changes to
the product and accessories at any time.
3. Safety
3.1 Authorized use
This drum sander is designed for sanding wood and
similar materials only. Sanding of other materials is
not permitted and may be carried out in specific
cases only after consulting with the manufacturer.
The machine is not suitable for wet sanding.
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.
3.3 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 power cord.
Before operating the machine, remove tie, rings,
watches, other jewellery, and roll up sleeves above the
elbows.
Remove all loose clothing and confine long hair.
Wear safety shoes; never wear leisure shoes or sandals.
Always wear the approved working outfit:
- eye protection
- expiratory protection
Do not wear loose clothes and gloves while operating
this machine.
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 bolted stable on firm and levelled table surface
or on the supplied cabinet stand.
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.
Keep an ergonomic body position.
Maintain a balanced stance at all times.
Do not operate the machine under the influence of
drugs, alcohol or any medication. Be aware that
medication can change your behaviour.

5
Never reach into the machine while it is operating or
running down.
Always close the drum cover before you start the
machine.
Keep you hands distant to drum housing and conveyor
belt when feeding the work piece.
Keep children and visitors a safe distance from the work
area.
Never leave a running machine unattended. Before you
leave the workplace switch off the machine.
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.
Sanding dust is explosive and can also represent a risk to
health.
Always use a suitable dust extraction device.
Before machining, remove any nails and other foreign
bodies from the workpiece.
Work only with well sharpened tools.
Machine only stock which rests securely on the table.
Always close the chuck cover before you start the
machine.
Specifications regarding the maximum or minimum size
of the workpiece must be observed.
Do not remove chips and workpiece parts until the
machine is at a standstill.
Do not stand on the machine.
Connection and repair work on the electrical installation
may be carried out by a qualified electrician only.
Have a damaged or worn power cord replaced
immediately.
Make all machine adjustments or maintenance with the
machine unplugged from the power source.
Protect the environment, dispose of the packing in
an environmentally friendly manner.
Your appliance contains valuable materials which can
be recovered or recycled. Please leave it at a
specialized institution.
3.3 Remaining hazards
When using the machine according to regulations
some remaining hazards may still exist.
The moving sanding sleeve can cause injury.
Risk of kickback. The workpiece is caught by the
moving sanding sleeve and thrown back to the
operator.
Thrown workpiece parts can lead to injury.
Sanding 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 exhaust
system.
Defective sanding discs can cause injuries.
The use of incorrect mains supply or a damaged
power cord can lead to injuries caused by electricity.
3.4 Labels and positions
A: Safety warning
B: Sanding drum & Conveyor belt running direction
C: Loosen table lock before adjusting table parallel
Fig.A Fig.B
Fig.C

6
4.0 Specifications
Model number ..............................................................................JWDS-1632-M .......................................................JWDS-1836-M
Stock numbers:
Sander with open stand ............................................................... 723520KM ............................................................ 723530KM
Open stand only ............................................................................... 723520S ................................................................723520S
Motor and electricals:
Drum motor:
Motor type…………………………………………….............................induction motor ....................................................induction motor
Horsepower............................................................................ 1.1kW (1.5 HP) ....................................................1.3kW (1.75 HP)
Voltage .................................................................................~230V, PE, 50Hz ....................................................~230V, PE, 50Hz
Listed FLA (full load amps)......................................................................7.1 A ......................................................................9.5 A
Motor speed.................................................................................. 1400 /min ............................................................. 1400 /min
Starting amps ..........................................................................................25 A .......................................................................28 A
Running amps (no load) .........................................................................4.5 A ......................................................................4.3 A
Start capacitor ........................................................................300µF 125VAC ...................................................... 300µF 125VAC
Running capacitor..................................................................................... n/a ....................................................... 20 µF 300VAC
Conveyor motor:
Motor type ........................................................... totally enclosed DC motor .................................... totally enclosed DC motor
Horsepower............................................................................................ 40W ...................................................................... 40W
Motor speed...................................................................................... 54 /min ................................................................. 54 /min
Power Switch........................................................................magnetic switch ....................................................magnetic switch
On/off switch............................................................................ rocker switch ........................................................ rocker switch
Power cord ................................................... H05RN-F, 3x1.0mm2, 1830 mm ............................ H05RN-F, 3x1.0mm2, 1830 mm
Recommended circuit and fuse/breaker size 1.........................................16A ........................................................................16A
Sound emission 2..........................................65 dB idling; 80 dB in operation ............................67 dB idling; 83dB in operation
.......................................................... Acoustic pressure level (EN ISO 11202) ................ Acoustic pressure level (EN ISO 11202)
Capacities:
Maximum board width (single pass) .................................................406 mm .................................................................457 mm
Maximum board width (two passes).................................................812 mm .................................................................914 mm
Maximum board thickness ..................................................................75 mm ...................................................................75 mm
Minimum board length .......................................................................60 mm ...................................................................60 mm
Minimum board thickness 3...............................................................0.8 mm ..................................................................0.8 mm
Main materials:
Open stand ............................................................................................. steel ...................................................................... steel
Drum .............................................................................. extruded aluminum .............................................. extruded aluminum
Extension tables (optional)..................................................................... steel ...................................................................... steel
Conveyor table ....................................................................................... steel ...................................................................... steel
Drum height adjustment handle ..........................................................plastic ....................................................................plastic
Sanding drum:
Drum dimensions ............................................................. dia. 127 x 406 mm ................................................ dia. 127 x 406 mm
Drum speed ................................................................................... 1400 /min ............................................................. 1400 /min
Sanding paper installed ........................................................................80 grit ................................................................... 80 grit
Drum elevation per one rotation of handwheel.................................1.6 mm .................................................................1.6 mm
1Subject to local/national electrical codes.
2The 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.
3Use of a carrier or backer board (not provided) is recommended for cuts 1.6mm or less. See sect. 9.3.

7
Conveyor:
Conveyor speed……………………………………infinitely variable within 0-3 m/min ..................... infinitely variable within 0-3 m/min
Conveyor table dimensions…………………………….. ..................... 456 x 420 mm ....................................................... 456 x 420 mm
Conveyor height from floor………………………………………….. .................812 mm .................................................................812 mm
Dust collection:
Dust port outside diameter ................................................................100mm ..................................................................100mm
Minimum extraction volume required ............................................ 560m3/h ............................................................... 560m3/h
Dimensions:
Shipping carton, base machine .......... ……………………….. 985 x 570 x 510 mm ..............................................985 x 570 x 510 mm
Shipping carton, open stand........ …………………………………860 x 415 x120 mm ...............................................860 x 415 x120 mm
Assembled dimensions…………………………………….........508 x 1269 x 1007 mm ..........................................508 x 1269 x 1007 mm
Weights:
Net weight............................................................................................. 71 kg ..................................................................... 75 kg
Shipping weight..................................................................................... 83 kg ..................................................................... 87 kg
The specifications in this manual were current at time of publication, but because of our policy of continuous improvement,
JET reserves the right to change specifications at any time and without prior notice, without incurring obligations.
5.0 Features and Terminology
The illustration below shows the major components and features of the JWDS-1632-M / JWDS-1836-M Sander. These are
referenced throughout the manual and will help to familiarize you with the operation and functions of the machine.
Figure 5-1
Motor mount
slide
Drum height
adjustment handle
Shroud
Depth indicator
Drum motor 1-1/2HP
Control box
SandSmartTM
controller
Drum motor on/off switch
Main power switch
Infeed table (optional
accessory)
Conveyor bed
Driven roller
Table locking screw
Drive roller
Drum alignment
knob
Conveyor take-up
Drum carriage
Outfeed table (optional
accessory)
Drum (pre-installed
80G abrasive)
Dust hood
Height adjustment
lead screw

8
6.0 Setup and assembly
Open boxes and check for shipping damage. Report
any damage immediately to your distributor and
shipping agent. Do not discard any shipping material
until the Drum Sander is assembled and running
properly.
Compare the contents of your boxes with the following
parts list to make sure all parts are intact. Any missing
parts should be reported to your distributor. Read this
instruction manual thoroughly for assembly,
maintenance and safety instructions.
6.1 Shipping contents
Box #1: (see Figure 6-1)
1 Sander with conveyor table (A)
1 Handle (B)
1 Instruction manual (not shown)
1 Spare parts list (not shown)
Box #2: (see Figure 6-2)
1 Stand assembly including:
1 Shelf (C)
2 Short rails (D)
2 Long rails (E)
4 Legs (F)
4 Leveling feet (G)
8 Flat washers (H)
4 Hex nuts (I)
24 Carriage Bolts, M8x16 (J)
24 Flanged Lock Nuts, M8 (K)
6.2 Tools required for assembly
12mm and 14mm wrenches
3mm and 6mm hex wrenches
Straight edge (such as straight steel bar or carefully
jointed board)
Figure 6-1: box #1 (main unit)
Figure 6-2: box #2 (stand assembly)

9
Figure 6-3: Assembly
6.3 Assembling stand
(Refer to Figure 6-3. If further clarification is needed,
consult parts breakdown at back of this manual.
1. Assemble legs (F) to outside of Short Rails (D)
using carriage bolts (J) and flanged lock nuts (K).
Finger tighten only.
2. Assemble Long Rail (E) on inside of legs and on top
of Short Rails (D). Finger tighten only. NOTE:
Flange of Long Rail overlaps flange of Short Rail.
See inset, Figure 6-3.
3. Turn stand upside down. Install shelf (C) into legs
using carriage bolts and lock nuts.
4. Fully tighten all flanged lock nuts in shelf and legs.
5. Insert leveling foot (G) into bottom hole of leg
with flat washers and hex nut.
6. Turn stand right-side up, and push down on it to
settle it. Tighten all flanged lock nuts on stand.
7. Level the stand using the leveling feet. Tighten the
hex nuts against the leg flange.
6.4 Mounting sander to stand
1. Lift drum head assembly out of the box, and
temporarily rest it crosswise on top of stand.
Use an assistant to help lift
the sander.
2. Install height adjustment handle (B), and tighten
set screw.
3. Rotate height adjustment handle counter-
clockwise to raise drum and free the wood
support block.
4. Remove the socket head cap screws and washers
which secure the plywood boards to the bottom
of sander base. Retain these screws and washers
for step 6.
optional
optional
removed from
plywood packaging
WARNING

10
5. Position sander atop stand so that the four
threaded holes of base align with holes in the
stand rails (Figure 6).
6. Fasten base to stand (from beneath) with the four
screws and washers that you removed from the
plywood boards. Tighten screws securely.
6.5 Infeed and outfeed tables (optional
accessory)
The sander must be bolted to the stand or a work table
when using these table extensions. Maximum working
load of each table is 16kg. Fasteners are provided with
the extension tables.
1. Install infeed and outfeed brackets (L, Figure 6-3)
to the threaded holes in sander base with M8x16
socket head cap screws and flat washers. Make
sure left and right brackets are oriented as shown.
The brackets should be flush against the base.
NOTE: Long brackets mount to front (infeed);
short brackets to rear (outfeed).
2. Place extension tables over brackets and secure
with M8x12 socket head cap screws and washers.
Finger tighten only.
3. Position tables slightly below conveyor belt
surface for proper support of stock. To check
position, place a straight-edge on one side of
conveyor table under drum and extending out
over the extension table. Lower drum to securely
hold straight-edge in place. See Figure 6-4. Raise
infeed/outfeed table until table surface is slightly
below conveyor belt surface. Tighten screws on
that side.
4. Reposition straight-edge to other side of table
and repeat.
If stock being sanded is bowed, warped or otherwise
inconsistent, be sure tables are lower than top of
conveyor table.
If stock slips on conveyor, the tables may be positioned
too high. Lower tables to allow stock to remain in
contact with conveyor.
Figure 6-4: extension table alignment
6.6 Dust collection
Dust collection is mandatory for a safe work
environment and extended abrasive life. The JWDS-
1632-M is equipped with a 100mm dust collection
port. Secure a 100mm dust collection hose to the port
with a hose clamp (Figure 6-5), and connect to a high
volume dust collector (minimum 560m3/h).
Figure 6-5 (hose and clamp not included)
6.7 Installing abrasives
Proper attachment of the abrasive strip to the drum is
critical to achieving top performance from your drum
sander.
An 80-grit, 76mm wide abrasive strip is pre-installed
on the drum.
(TIP: If you are using an after-market abrasive, use a
new JET-supplied abrasive as a template to quickly cut
a new strip. Press fastener lever (Figure 6-7) on
outboard (left) end of drum, and insert tapered end of
abrasive through slit in fastener, as shown. Insert
approximately 75mm of abrasive strip into fastener.
Align tapered edge of abrasive strip with left edge of
drum.
Figure 6-7
1. Release fastener lever to secure end of strip.
2. Begin wrapping abrasive around drum. The
tapered edge of strip end should follow as close
as possible to edge of drum.
3. Continue to wrap abrasive in spiral fashion by
rotating drum with one hand and guiding strip
with the other. See Figure 6-8.

11
Successive windings of strip must not have any
overlap. They should be flush with previous
windings or with a slight gap between.
Figure 6-8
4. Press inboard take-up lever (Figure 6-9) and insert
trailing end of strip as far as it will go. If necessary,
trim tapered end of abrasive strip.
5. Release inboard take-up lever to secure strip.
All abrasive strips will stretch over time as they are
used, and may stretch enough to allow the take-up
lever to reach its lowest position so that it cannot
maintain tension on the strip. If this occurs, follow the
above procedures to reset the take-up lever.
Figure 6-9
7.0 Electrical connections
All electrical connections must be
done by a qualified electrician in compliance with all
local codes and ordinances. Failure to comply may
result in serious injury.
The JWDS-1632-M Sander is rated at 230V power. The
sander comes with a plug designed for use on a circuit
with a grounded outlet
Before connecting to power source, be sure switch is
in off position.
It is recommended that the sander be connected to a
dedicated 16 amp circuit with circuit breaker or fuse.
If connected to a circuit protected by fuses, use time
delay fuse marked “T”. Local codes take precedence
over recommendations.
8.0 Adjustments
Disconnect sander from power
source before making adjustments.
8.1 Drum Height Control
Drum height and depth of cut are controlled by height
adjustment handle (see Figure 5-1). Rotating handle
clockwise lowers drum, counterclockwise raises it. One
revolution of handle will move drum approximately
1.6mm (or 1/4 turn = approx. 0.4mm), as shown on the
label below handle.
8.2 Depth scale
The depth scale indicates distance between bottom of
sanding drum and top of conveyor belt. Adjustment is
performed by “zeroing” the scale.
1. Unplug sander from power source.
2. With an abrasive strip on drum, lower drum to
where it touches top of conveyor belt.
3. At this drum position, the depth scale pointer
should align with zero mark on scale. If it does not,
loosen two screws (Figure 8-1) and raise or lower
scale until zero aligns with the pointer.
4. Retighten screws.
Note: Depending on desired accuracy, you may need
to repeat this process when installing different
abrasive grits.
Figure 8-1: depth scale adjustment
8.3 Conveyor belt tension/tracking
Conveyor belt tension adjustment may be necessary
during the break-in period to compensate for belt
stretching.
8.3.1 Belt tension adjustment
1. Unplug sander from power source.

12
2. Adjust take-up screw nuts (Figure 8-2) with 5mm
hex wrench. Do this on both sides of conveyor to
obtain approximately equal tension on both sides
of sanding belt when taut.
NOTE: Insufficient belt tension will cause slippage
of conveyor belt on drive roller during sanding
operation. The conveyor belt is too loose if it can
be stopped by hand pressure applied directly to
top of moving conveyor belt. Excessive belt
tension can result in bent rollers, bent brackets,
and/or premature wearing of bushings or
conveyor belt.
Figure 8-2: belt tension adjustment
8.3.2 Tracking adjustment
A belt tracks correctly when it moves centrally on the
conveyor rollers without drifting to either side.
Tracking adjustments are made while conveyor belt is
running.
1. Unplug sander from power source.
2. Make sure proper belt tension has been achieved
(see sect. 8.3.1).
3. Turn on conveyor and set to maximum speed.
Watch for tendency of conveyor belt to drift to
one side of conveyor. If it drifts, tighten or loosen
take-up screw.
Note: Adjust take-up screw only 1/4 turn at a
time. Allow time for belt to react to adjustments
before proceeding further.
Try to avoid over adjustments, as this may affect
belt tension. If tension is affected, if may become
necessary to use both take-up screws to
accomplish tensioning and tracking.
8.3.3 Trackers
The sander comes equipped with “Trackers”, ceramic
guides that reduce the amount of adjustments needed
to keep conveyor belt tracked (centered) on conveyor
table. These guides have a magnetic backing to keep
them in place. If a Tracker wears through, it can be
reversed by turning it over. See sect. 11.0 Tracker Kit
for more information about re-setting trackers.
8.4 Inspecting drum alignment
The sanding drum must be parallel to conveyor table
for proper machine operation. The sanding drum
comes pre-aligned from the manufacturer. If a
problem with drum alignment should occur, follow the
instructions below.
First, inspect the alignment with a gauge of some kind.
The following procedure uses a steel straight-edge as
a gauge.
1. Unplug sander from power source.
2. Open dust cover and remove abrasive strip from
drum.
3. Insert gauge between drum and conveyor table at
outboard side of drum (A, Figure 8-3).
Figure 8-3: drum alignment
4. With dust cover open, lower sanding drum while
slowly rotating drum by hand, until drum lightly
contacts gauge. NOTE: Make sure drum contacts
gauge, not just the tension rollers.
5. Remove gauge and place under drum at inboard
side.
6. If drum does not contact gauge equally on both
ends of drum, alignment is needed.
To align conveyor table with drum:
7. Loosen both table locking screws (B, Figure 8-3)
Loosen both table locks
before adjusting drum alignment.
8. Turn knob (C) to raise or lower outboard end of
table. Follow directional marks on label (+raises,
- lowers).
9. Retighten table lock screws (B).
8.4.1 Fine-tuning drum alignment
Note: This is an operational test for sanding boards
wider than the drum. Perform this procedure only
after you have become familiar with sander operation.
When sanding boards wider than the drum, table
alignment is critical and table must be adjusted exactly

13
level to slightly lower on the outboard end. This will
prevent any ridges from developing in the stock.
Always check this on a piece of scrap wood, as follows,
before sanding the work piece.
1. Run a piece of scrap wood approximately 150mm
wide by 700mm to 1000mm long through the
sander sideways so that end of board extends
past outboard side of drum.
2. Without changing drum height, rotate board 180°
and sand the same side.
3. If a ridge is visible where the drum overlaps, lower
table at outboard end slightly by turning knob (C,
Figure 8-3).
4. Repeat this process until the ridge is eliminated
and entire board is sanded.
Note: When sanding narrow stock (less than 406mm),
return conveyor table to parallel position. Turn knob
opposite direction until lock nut (D, Figure 8-3) is
contacted. The lock nut provides a positive stop for
table parallelism.
8.5 Tension roller adjustment
The infeed and outfeed rollers are tensioned to
provide downward pressure on the workpiece to
prevent slippage on the feed conveyor. Tension rollers
have been set by the manufacturer, but should be
inspected and may require adjustment as the sander
receives use.
Improperly adjusted tension
rollers (i.e. those set too high, rendering them non-
functional) could allow kickback of pieces being
sanded.
You can increase or decrease tension roller pressure
by turning the screws on the tension roller brackets
(Figure 8-4).
Figure 8-4: tension adjustment screws
Too much tension roller pressure can result in a
“snipe” mark, which is a visible line running across the
width of the board and located approximately 60mm
from end of board.
If snipe occurs on the leading end of board, adjust
outfeed tension roller. If the snipe occurs on trailing
end of board, adjust infeed tension roller.
9.0 Operations
Before using your drum sander, review the previous
sections on initial set-up and adjustment. Before
operating, make sure an abrasive strip is mounted and
a proper dust collection system is connected.
9.1 Basic Operating Procedure
1. Establish depth of cut.
2. Start dust collection system.
3. Turn on the power switch
4. Start sanding drum.
5. Start conveyor and select feed rate.
6. Feed stock through machine.
To feed stock through the sander, rest and hold board
to be sanded on conveyor belt, allowing conveyor belt
to carry board into drum. Once stock is halfway
through, reposition yourself to outfeed side of
machine to receive and control board as it exits.
Board will be forced down against
conveyor table as it begins feeding, causing pinching
hazard. Keep fingers away.
Do not open drum hood until drum
comes to a complete stop.
9.2 Drum & belt motor operation
1. Connect power supply to machine.
2. Turn on main power switch by firmly pressing
switch (A, Figure 9-1)
3. Turn on the rocker switch (B, Figure 9-1) to start
drum motor.
4. Rotate conveyor speed dial (C, Figure 9-1)
clockwise to start and increase speed of conveyor.
Figure 9-1: control panel
9.3 Setting depth of cut
Adjusting the drum sander for proper contact between
abrasive and stock determines the depth of cut. The
depth of cut is controlled by the height adjustment
handle.

14
It may take experimentation to determine proper
depth of cut, given the variables of abrasive grit, type
of wood, and feed rate. For best results, use scrap
wood to practice sanding and to develop skill and
familiarity with the machine before doing finish work.
A combination of several variables will determine
proper depth of cut to use, including the following:
1. Abrasive type and grit size.
2. Width of piece being processed.
3. Hardness of piece.
4. Feed rate of conveyor belt.
NOTE: The use of a carrier or backer board (not
provided), is recommended for cuts 1/16” or less. This
is a flat board, usually of wood or MDF, slightly larger
than the workpiece and of even thickness, placed
beneath the workpiece as it is fed through the sander.
The workpiece may be attached to the carrier with
rubber cement, carpenter’s tape or some other easily
removable adhesive. However, some operators use a
rubber or textured surface on the carrier to help
stabilize the workpiece by simple friction.
9.4 Establishing drum height
A good rule of thumb when sanding with grits finer
than 80:
1. To establish drum height, position stock under the
drum. Do NOT start drum.
2. Lower drum to the stock thickness, making sure
drum can still be rotated by hand while just
contacting stock.
Do not start drum while in
contact with stock.
3. Without changing drum height, turn on conveyor
and run the stock out from under the drum. Start
sanding drum and sand stock at that same
position.
4. With the drum operating, feed stock under the
drum from the infeed side and against the
rotation of the drum. Always maintain control of
the stock to avoid kickback and/or slippage.
NOTE: If motor heats up during operation, depth
of cut may be too great for size of grit and/or feed
rate may be too fast.
For sanding with grits coarser than 80, you can lower
the drum slightly.
Always maintain control of stock. Through practice you
will learn the proper depth of cut considering the
variables above.
9.5 Selecting SandSmart™ feed rates
A faster feed rate allows faster sanding but fewer
revolutions of the drum per inch of sanding. A slower
feed rate provides more revolutions of the drum per
inch of sanding to allow a greater depth of cut and
smooth sanding.
Begin experimenting with the feed rate set at about
40% to 50% of maximum. The best feed rate will
depend on a number of factors, including type of stock,
grit and depth of cut used, and whether the stock is fed
directly in line with the conveyor table or at an angle.
If the drum motor is lugging down, if conveyor belt is
slipping, or if you observe a ripple effect on the stock,
slow the feed rate. If the finish is smooth and the
machine is not overworking, you can experiment using
a faster feed rate.
The SandSmart controller continuously monitors the
load on the drum motor, and automatically regulates
the speed of the conveyor motor to maintain the
highest feed rate without overload.
When the red indicator light (B, Figure 9-2) comes on,
the SandSmart control has detected too great a depth
of cut and/or too fast a feed rate.
If the load on the drum motor increases, the
SandSmart control will decrease the conveyor feed
rate and will stop the conveyor under extreme
conditions. If the load on the drum decreases,
SandSmart will increase the feed rate but will not
increase it faster than the manual setting on the speed
adjustment label.
The best and most consistent finish will be achieved if
the conveyor does not change speed during operation.
Figure 9-2
This change in conveyor speed may affect the finish
surface. If the finish is affected, make another sanding
pass without changing any settings. If the finish is still
affected, make adjustments by slowing the conveyor
and/or decreasing the depth of cut and run the stock
through again.
Also try a faster feed rate or less depth of cut if the
stock you are working begins to show burn marks.
With cherry, hard maple or other hardwoods, using a
shallower depth of cut and a faster feed rate will help
minimize burn marks. Slightly angling the stock as it is
fed into the machine will also help prevent burning the
stock.
Because of the wide range of variables, it is important
to experiment with your specific conditions and make
adjustments to achieve the optimum feed rate. If

15
problems occur, first check and adjust the feed rate,
referring to the “Troubleshooting” section in this
manual.
9.6 Maximum performance tips
The versatility designed into the JWDS-1632-M drum
sander allows it to be used for a variety of tasks that
will boost return on your investment. For example, it
will speed up fine sanding work often done with
slower, dust-generating hand sanders, and will achieve
fine thickness adjustments not possible on some
sanders. It can be used to surface figured woods –
bird’s eye or curly maple, for example – which can be
damaged if fed through a planer.
Learning how to use its adjustments and controls will
allow you to fine-tune the machine for maximum
results. The best results come from experimenting
with different abrasive grits and machine adjustments
to fit the job at hand. Following is a list of useful tips
which can help you improve performance of your
sander.
9.6.1 Dust collection
When connecting dust collectors, remember that
straight pipe will not restrict airflow as much as flexible
tubing. Y’s and elbows will restrict airflow less than T’s.
Also, a hose smaller than 80mm diameter should not
be used.
9.6.2 Multiple-piece sanding runs
When abrasive planing (or thickness sanding) a run of
similar pieces that you want to have the same
thickness, it is best to determine the thickness of the
thinnest piece and process all pieces to that same
thickness in one session. Be aware that the sander will
remove cups and crowns in the workpiece; consider
this when measuring and processing stock to the same
thickness.
9.6.3 Simultaneous multiple pieces
When sanding multiple pieces simultaneously, make
sure to stagger (step) the pieces across the width of
the conveyor belt. This provides better contact with
the tension rollers. Try to process only multiple pieces
of similar thickness.
If there is a significant thickness difference, the thinner
pieces can slip on the conveyor belt if they do not
contact the tension rollers. Also note that pieces
thicker than 20mm should be longer than the
minimum normally recommended to prevent tipping
of the stock.
9.6.4 Edge sanding
When edge sanding, the sander will mimic the
opposite edge of the stock which is lying on the
conveyor belt. Because of this, it is important for the
stock edge to have been ripped at the proper angle to
the face before the sanding process. When edge
sanding stock that is less than 20mm wide or more
than 50mm high, it is good procedure to stack and
clamp several pieces together to prevent them from
slipping or tipping on the conveyor belt.
9.6.5 Sanding imperfect stock
When sanding stock with a cup or crown, place the
crown up. This will stabilize the stock to help prevent
tipping or rocking during sanding. After the crown has
been removed and the top is flat, turn the stock over
and sand the opposite side. To avoid personal injury,
take special care when sanding stock that is twisted,
bowed, or otherwise varies in thickness from end to
end. If possible, support such stock as it is being
sanded to keep it from slipping or tipping. Use extra
roller stands, help from another person, or hand
pressure on the stock, to minimize potentially
hazardous situations.
9.6.6 Face frames and raised panel doors
It is very important to have the proper abrasive
contact when doing this type of sanding. If the
machine is set to take an excessive depth of cut, the
result can be a gouge or dip as the drum goes from
sanding the rails at full width to sanding just a small
width on the stiles. To prevent this make sure, when
using abrasives finer than 80 grit, that the drum is in
contact with the wood but can still be spun by hand. If
there is room, angling the stock on the conveyor belt
can also help. Slowing the conveyor feed when coming
to a rail in the stock can help prevent a dip or gouge.
This allows the abrasive to work the wider width with
less effort, and to achieve better consistency of the
finished surface.
9.6.7 Stock feeding angle
Some pieces, because of their dimensions, will need to
be fed into the machine at a 90°angle (perpendicular
to drum). However, even a slight offset angle of stock
will provide for more effective stock removal. The
optimum feeding angle for stock removal is about 60°.
Angling the workpiece for stock removal provides
other advantages, such as less loading of certain areas
of the drum due to glue lines or mineral streaks in the
stock, more even wear of abrasive strips, potentially
faster feed rates, and lighter loads on the motor. Note
that to get the best final finish, however, the stock
should be fed through the machine so it will be sanded
in line with the grain of the wood on the final one or
two passes.
10.0 User-maintenance
Before doing maintenance on the
machine, disconnect it from the electrical supply (pull
out the plug), unless indicated otherwise. Failure to
comply may cause serious injury.

16
10.1 Cleaning and lubrication
For best results, make cleaning the sander a regular
shop procedure. Allowing excess build-up of dust and
debris can adversely affect performance through
loading of the abrasives, slippage on the conveyor
table, and/or the accumulation of material inside the
drums which can throw off the center of balance.
Leave the dust collector on when cleaning dust from
the drums. Also brush the conveyor belt after cleaning
operations. If not cleaned, the conveyor belt could
allow stock to slip during sanding operations.
NOTE: Bearings are pre-sealed and require no
lubrication.
Lubricate conveyor bushings as needed, and
check for wear.
Lubricate elevating leadscrew (A, Figure 10-1) as
needed.
Clean sawdust from abrasive strip and brush dust
from conveyor belt.
Keep slide areas clean (B, Figure 10-1).
Blow dust from motors and switches. Blow dust
from inside of sanding drum, which may cause
vibration or offset the center of balance.
Check all set screws for tightness on parts such as
bearings, conveyor table, and couplings.
Figure 10-1
10.2 Drum maintenance
The drum should not require removal from the
machine under normal circumstances. Should
maintenance ever become necessary, the drum has
been designed for easy removal and replacement.
Remove four socket head screws (C, Figure 10-2).
Carefully lift out drum with coupling (D) attached.
Figure 10-2: drum removal
10.3 Conveyor belt replacement
1. Disconnect sander from power.
2. Raise drum to highest position.
3. Turn take-up screws (Figure 8-2) on both sides of
conveyor to relieve belt tension, and slide the
driven roller fully inward.
4. Remove two (2) screws that attach conveyor table
to base.
5. Remove two (2) screws that attach conveyor table
to drum alignment bracket (E, Figure 10-3).
6. Loosen two locks (F, Figure 10-3).
7. Lift up conveyor table and remove it from
machine. Avoid tearing the belt on any edges
underneath the conveyor table. Do not allow the
Trackers to drop, as they may break.
8. Set conveyor on motor side and slide conveyor
belt off end of conveyor table.
9. Install new belt along with trackers (see sect.
11.0), and re-install conveyor table. Tension and
track the new belt.
Figure 10-3
Note: If conveyor belt continually tracks to one side of
the machine, reversing the belt on the conveyor table
may remedy the problem. To make sure the conveyor
table is not twisted, place a level on the conveyor
table. Level the machine if needed. If there is still a
problem, proceed with the steps below:

17
Step 1: Check conveyor drive roller and driven roller to
make sure they are parallel to surface of conveyor
table. To do this, first center conveyor belt on the
conveyor table. Then lay a straight-edge on the
exposed edge of conveyor table on left (outboard)
side, extending it over the roller. Note distance
between roller and straightedge.
Step 2: Now repeat Step 1 on right (inboard) side of
conveyor. Compare the measurements from side to
side. If they are not equal, loosen one of the brackets
that hold the roller in place. Tip this bracket until
distance between roller and straight-edge are equal
from side to side, then tighten bracket.
10.4 Commutator brush inspection
To maintain motor efficiency, inspect the two carbon
brushes every two months, or more frequently if
sander is heavily used. Stalling or loss of power may be
a symptom of worn carbon brushes. If one brush is
worn out, replace both at the same time.
Continued use of damaged or
worn brushes may result in damage to motor
armature.
1. Unplug saw from power source.
2. Unscrew and remove cap with flat blade
screwdriver. See Figure 10-4.
3. Gently pry up an edge of the brass clip, until the
spring causes it to disengage from hole. (Notice
orientation of brush as you remove it; it should be
inserted in the same manner; curvature of brush
will match curvature of motor.) Pull out brush and
inspect. Brush should be replaced if any of the
following are discovered:
Brush has worn to about 13mm long.
Signs of crumbling, burning or breaking.
End of brush is rough or pitted.
Abnormal coloration of spring
Broken lead in spring
Collapsed spring
4. Install new brush (or reinstall current brush) and
gently press it all the way into hole until the brass
clip is secured.
5. Install cap.
6. Repeat for other brush.
NOTE: It is recommended that sander be run without
load for several minutes to seat new brushes.
Figure 10-4
10.5 Additional servicing
Any additional servicing should be performed by an
authorized service technic
11.0 Tracker kit
Stock No.: PM2244-213
Trackers dramatically reduce tracking adjustments of
conveyor belts. They are already installed on your
sander. The following information is for resetting or
replacing your trackers, should that become
necessary.
1. Disconnect power to sander.
2. Raise drum as high as it will go.
3. Turn both conveyor take-up screws to relieve
conveyor belt tension and slide driven roller fully
inward.
4. Remove the four bolts holding conveyor table to
sander base.
5. Lift conveyor table and slide it out of sander. Turn
conveyor table upside down. Be careful not to
damage conveyor belt.
6. On the underside of the conveyor table, there are
U-channels welded to the table. The Tracker is
positioned on the inside of the first U-channel on
the infeed side of sander (Figure 11-1). The back
of tracker is magnetized and will stick to side wall
of conveyor table. Do not install tracker if edge of
conveyor belt is damaged or torn.
7. With first tracker installed, slide conveyor belt
into bottom slot of tracker. Note: When installed

18
properly, only bottom lip of tracker will be visible.
The top slot can be used if bottom slot wears out.
8. Install second tracker opposite the first. Use both
trackers unless the second one does not fit in
conveyor or unless conveyor belt is damaged.
9. Turn conveyor table right-side up and reposition
it onto sander. Re-attach three mounting screws
and tighten. Caution: Be careful not to knock
tracker(s) out of conveyor table when turning
conveyor over. Trackers may break if allowed to
fall.
10. Make sure all switches are off. Connect power to
sander and plug in motor.
11. Tension conveyor belt using take-up screws. If
both trackers are installed, it is very important to
have equal tension on both sides of conveyor belt.
Turn take-up screws on both sides until equal
tension is obtained.
12. To check tension, turn on conveyor full speed and
place both hands on conveyor. If conveyor belt
can be stopped, continue tensioning until
conveyor belt cannot be stopped by both hands
on the belt while conveyor is operating at full
speed.
13. Make sure conveyor belt runs smoothly inside
tracker slot and that the magnet is holding the
tracker in position.
14. Continue to watch tracking of conveyor and
adjust only if necessary, making sure to keep
equal tension on conveyor belt at all times and
not allowing conveyor belt to buckle under
conveyor table.
Figure 11-1: Underside of conveyor shown
Tracker
Tracker
Conveyor belt
Driven roller

19
12.0 Abrasives
The abrasive material you choose will have a
substantial effect on the performance of your sander.
Variations in paper type, weight, coating and durability
all contribute to achieving your desired finish.
12.1 Selecting drum abrasives
It is important to select the proper grit of abrasive for
the type of sanding being performed to achieve
maximum results. As with any sanding operation, first
begin sanding with a coarser grit, depending upon the
roughness of the stock or the amount of stock to be
removed. Then progressively work toward finer grits.
The chart below shows the general uses for the various
grits.
The amount of stock to be removed is a major
consideration when choosing the grit grade with which
to begin. Grits 24, 36, 50 and 60 are primarily designed
for stock removal. Grits 24 and 36 will remove the
most material in one pass, whether you are doing
abrasive planing, cleaning up glued panels, or
flattening stock. Grits from 100 through 220 are
primarily finishing grits designed to remove the scratch
pattern from the previous grit used. For best results,
never skip more than one grit grade when progressing
through a sanding sequence.
For fine work, such as furniture, try not to skip any grit
grades during the sanding process.
In general, premium quality abrasives will produce a
better finish with a less noticeable scratch pattern.
Note: Grits that are too fine can sometimes burnish
the wood and leave a glossy surface which will not
accept stains evenly. This will vary by type of wood.
Oak, for example, is susceptible to burnishing because
of its open pores.
12.2 Cleaning abrasive strips
Regularly clean the abrasive strip on the drum with
commercially available cleaning sticks, following the
manufacturer’s directions. When cleaning, also brush
the stick crumbs from the drum while it is still rotating.
In some cases, heavy loaded areas can be removed
with Plexiglas held on edge over the rotating drum.
Always wear eye protection while
performing sandpaper cleaning, and take all
precautions to avoid any contact of hands or clothing
with the rotating drum.
Cloth-backed abrasives can be cleaned by soaking in
paint thinner or mineral spirits for 20 minutes to one
hour, then using a brush to remove any build-up. Dry
the abrasive strips completely before using. Any used
solvents should be discarded in compliance with
environmental regulations.
12.3 Increasing abrasive life
Abrasive life can be increased not only by cleaning, but
by removing the abrasive strip from the drum and
reversing it. To do this, remove the strip and use what
was the trailing end as the starting end on the left
(outboard) side of the drum. Reversing the strip will
provide a fresh set of cutting edges on the abrasive.
12.4 Abrasive selection guide
Grit
Common Application
24
Abrasive planing, surfacing rough-sawn boards, maximum stock removal, glue removal.
36
Abrasive planing, surfacing rough-sawn boards, maximum stock removal, glue removal.
50
Surfacing and dimensioning boards, truing warped boards
60
Surfacing and dimensioning boards, truing warped boards.
80
Light dimensioning, removal of planer ripples.
100
Light surfacing.
120
Light surfacing, minimal stock removal.
150
Finish sanding, minimal stock removal.
180
Finish sanding only, not for stock removal.
220
Finish sanding only, not for stock removal.
Table 2

20
13.0 Troubleshooting JWDS-1632-M / JWDS-1836-M Drum Sander
Symptom
Possible Cause
Correction *
Drum motor won’t start
when switch is activated.
No incoming current.
Check connections at plug or circuit panel.
Safety key missing from switch.
Install safety key.
Low voltage.
Check power line for proper voltage.
Open circuit in motor or loose connection.
Inspect all lead connections on motor for loose
or open connections.
Switch malfunction.
Replace switch.
Drum motor will not start:
fuses blow or circuit
breakers trip.
Short circuit in line cord or plug.
Inspect cord or plug for damaged insulation and
shorted wires.
Short circuit in motor or loose
connections.
Inspect all connections on motor for loose or
shorted terminals or worn insulation.
Incorrect fuse or circuit breaker in power
line.
Install correct fuse or circuit breaker.
Drum motor overheats.
Air circulation through motor restricted.
Clean motor fan with compressed air to restore
normal air circulation.
Motor overloaded (SandSmart not
functioning properly).
Have controls inspected and repaired.
Drum motor stalls,
resulting in blown fuses or
tripped circuit.
Short circuit in motor or loose
connections.
Inspect connections on motor for loose or
shorted terminals or worn insulation.
Low voltage.
Correct low voltage conditions.
Incorrect fuse or circuit breaker in power
line.
Install correct fuse or circuit breaker.
Loud, repetitive noise or
vibration coming from
machine.
Fasteners loose.
Inspect fasteners and tighten where needed.
Motor fan is hitting cover.
Tighten fan or shim fan cover.
Machine not level.
Place sander on level floor; shim if needed.
Conveyor motor stalls.
Excessive depth of cut.
Reduce depth of cut; use coarser grit; reduce
feed rate.
Conveyor belt does not
move.
Shaft coupler is loose or unattached.
Adjust shaft coupler.
Conveyor rollers run
intermittently.
Shaft coupling is loose.
Align the shaft flats of the gear motor and the
drive roller and tighten the shaft-coupling
setscrews.
Conveyor belt slips on drive
roller.
Improper conveyor belt tension.
Adjust belt tension.
Excessive depth of cut and/or feed rate.
Reduce depth of cut and/or feed rate.
Abrasive strip comes off
drum.
Slack in abrasive strip on drum.
Remove slack in strip.
Abrasive improperly wrapped.
Read the section on installing abrasives, and
rewrap.
Abrasive strip is loose.
Strip caught on inside edge of slot, or on
inboard side of drum.
Re-adjust the strip end in the slot and/or trim
the abrasive edge.
Strip not cut properly.
Re-cut and re-install the abrasive strip.
Abrasive loads up
prematurely.
Excessive depth of cut.
Reduce depth of cut.
Excessive feed rate.
Reduce feed rate.
Inadequate dust collection.
Increase airflow at dust port.
Inadequate abrasive.
Use an open-coat abrasive.
Line or groove in stock.
Inconsistent feed rate.
Do not stop or change the feed rate while
feeding stock.
Snipe marks.
Improper tension on rollers.
Re-tension rollers.