JET 723520K User Manual

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Operating Instructions and Parts Manual

Drum Sander

Models JWDS-1632, JWDS-1836

JET

Model JWDS-1632 shown with optional infeed/outfeed tables

1.0 IMPORTANT SAFETY

INSTRUCTIONS

WARNING – To reduce risk of injury:

1. Read and understand the entire owner's manual before attempting assembly or operation.

2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may cause serious injury.

3. Replace warning labels if they become obscured or removed.

4. This drum sander is designed and intended for use by properly trained and experienced personnel only. If you are not familiar with the proper and safe operation of a drum sander, do not use until proper training and knowledge have been obtained.

5. Do not use this drum sander for other than its intended use. If used for other purposes, JET disclaims any real or implied warranty and holds itself harmless from any injury that may result from that use.

6. Always wear ANSI Z87.1 approved safety glasses or face shield while using this drum sander. (Everyday eyeglasses only have impact resistant lenses; they are not safety glasses.)

7. Before operating this machine, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Do not wear loose clothing. Confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do not wear gloves.

8. Kick back occurs when the workpiece is thrown towards the operator at a high rate of speed. If you do not have a clear understanding of kickback and how it occurs, DO NOT operate this drum sander.

9. Wear hearing protection (plugs or muffs) during extended periods of operation.

10. Drilling, sawing, sanding or machining wood products generates wood dust and other substances known to the State of California to cause cancer. Avoid inhaling dust generated from wood products or use a dust mask or other safeguards to avoid inhaling dust generated from wood products.

11. Wood products emit chemicals known to the State of California to cause birth defects or

other reproductive harm. (California Health and Safety Code Section 25249.6)

12. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.

13. Make certain the switch is in the OFF position before connecting the machine to the power supply.

14. Make certain the machine is properly grounded.

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

16. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting wrenches are removed from the machine before turning it on.

17. Keep safety guards in place at all times when the machine is in use. If removed for maintenance purposes, use extreme caution and replace the guards immediately after completion of maintenance.

18. Make sure the sander is firmly secured to the stand or work table before use.

19. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.

20. Provide for adequate space surrounding work area and non-glare, overhead lighting.

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

22. Keep visitors a safe distance from the work area. Keep children away.

23. Make your workshop child proof with padlocks, master switches or by removing starter keys.

24. Give your work undivided attention. Looking around, carrying on a conversation and “horseplay” are careless acts that can result in serious injury.

25. Maintain a balanced stance at all times so that you do not fall onto moving parts. Do not overreach or use excessive force to perform any machine operation.

26. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which it was not designed. The right tool will do the job better and more safely.

27. Use recommended accessories; improper accessories may be hazardous.

28. Maintain tools with care. Keep conveyor and abrasives clean for the best and safest performance. Follow instructions for lubricating and changing accessories.

29. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris — do not use bare hands.

30. Do not stand on the machine. Serious injury could occur if the machine tips over.

31. Never leave the machine running unattended. Turn the power off and do not leave the machine until it comes to a complete stop.

32. Remove loose items and unnecessary work pieces from the area before starting the machine.

Familiarize yourself with the following safety notices used in this manual:

This means that if precautions are not heeded, it may result in minor injury and/or possible

machine damage.

33. Stand out of the path of workpiece when feeding a board.

34. Always feed stock against the rotation of drum.

35. Keep hands clear when feeding parts onto the conveyor. The part will be forced down as it begins to feed, causing a pinching action between the part and the conveyor table. Never reach into a running machine. Turn off sander, allow it to come to a complete stop, and disconnect from power, before attempting to retrieve parts from beneath the drum.

36. Pay particular attention to instructions on reducing risk of kickback.

37. Don’t use in dangerous environment. Don’t use power tools in damp or wet location, or expose them to rain. Keep work area well lighted.

This means that if precautions are not heeded, it may result in serious, or possibly even fatal,

injury.

2.0 About this manual

This manual is provided by JET, covering the safe operation and maintenance procedures for a JET Model JWDS-1632 and JWDS-1836 Drum Sander. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. Your machine has been designed and constructed to provide consistent, long-term operation if used in accordance with the instructions as set forth in this document.

This manual is not intended to be an exhaustive guide to sanding methods, choice of stock, selection of abrasives, etc. Additional knowledge may be obtained from experienced users or trade articles. Whatever accepted methods are used, always make personal safety a priority.

If there are questions or comments, please contact your local supplier or JET. JET c an also be reached at our web site: www.jettools.com.

Retain this manual for future reference. If the machine transfers ownership, the manual should accompany it.

http://www.jettools.com/us/en/service-and-support/warranty/registration/

Read and understand the entire contents of this manual before attempting assembly or

operation! Failure to comply may cause serious injury!

3.0 Table of contents

Section Page

1.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 2

2.0 About this manual .......................................................................................................................................... 3

3.0 Table of contents ............................................................................................................................................ 4

4.0 Specifications ................................................................................................................................................. 5

5.0 Features and Terminology ............................................................................................................................. 6

6.0 Setup and assembly ....................................................................................................................................... 7

6.1 Shipping contents ....................................................................................................................................... 7

6.2 Tools required for assembly ....................................................................................................................... 7

6.3 Assembling stand ....................................................................................................................................... 8

6.4 Mounting sander to stand ........................................................................................................................... 8

6.5 Infeed and outfeed tables (optional accessory) .......................................................................................... 9

6.6 Dust collection ............................................................................................................................................ 9

6.7 Installing abrasives ..................................................................................................................................... 9

7.0 Electrical connections .................................................................................................................................. 10

7.1 GROUNDING INSTRUCTIONS ............................................................................................................... 10

7.2 Extension cords ........................................................................................................................................ 11

8.0 Adjustments ................................................................................................................................................. 11

8.1 Drum Height Control ................................................................................................................................. 11

8.2 Depth scale .............................................................................................................................................. 11

8.3 Conveyor belt tension/tracking ................................................................................................................. 12

8.4 Inspecting drum alignment ....................................................................................................................... 12

8.5 Tension roller adjustment ......................................................................................................................... 13

9.0 Operations .................................................................................................................................................... 13

9.1 Basic Operating Procedure ...................................................................................................................... 13

9.2 Switch safety key ...................................................................................................................................... 14

9.3 Setting depth of cut .................................................................................................................................. 14

9.4 Establishing drum height .......................................................................................................................... 14

9.5 Selecting SandSmart™ feed rates ........................................................................................................... 14

9.6 Maximum performance tips ...................................................................................................................... 15

10.0 User-maintenance ...................................................................................................................................... 16

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 .................................................................................................................................................. 18

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-series Drum Sander ............................................................................................. 20

14.0 Optional accessories .................................................................................................................................. 22

15.0 Replacement Parts ..................................................................................................................................... 22

15.1.1 JWDS-1632/-1836 Head Assembly – Exploded View ......................................................................... 23

15.1.2 JWDS-1632/-1836 Head Assembly – Parts List .................................................................................. 24

15.2.1 JWDS-1632/-1836 Conveyor Table Assembly – Exploded View ........................................................ 26

15.2.2 JWDS-1632/-1836 Conveyor Table Assembly – Parts List ................................................................. 26

15.3.1 JWDS-1632/-1836 Infeed and Outfeed Tables (OPTIONAL) – Exploded View .................................. 27

15.3.2 JWDS-1632/-1836 Infeed and Outfeed Tables (OPTIONAL) – Parts List ........................................... 27

15.4.1 JWDS-1632/-1836 Open Stand Assembly – Exploded View .............................................................. 28

15.4.2 JWDS-1632/-1836 Open Stand Assembly – Parts List ....................................................................... 28

16.0 Electrical Connections for JWDS-1632/-1836 ............................................................................................ 29

17.0 Warranty and service ................................................................................................................................. 30

4.0 Specifications

Model number ....................................................................... JWDS-1632 ................................................... JWDS-1836

Stock numbers:

Sander with open stand ........................................................ 723520K .........................................................723530K

Sander only........................................................................... 723520B .........................................................723530B

Open stand only .................................................................... 723520S .................................................. .......723520S

Motor and electricals: Drum motor:

Motor type…………………………………………….totally enclosed fan cooled, induct ion, capacitor start ..................

Horsepower .......................................................................... 1-1/2 HP ......................................................... 1-3/4 HP

Phase ........................................................................................ single ............................................................. single

Voltage ............................................................................... 115V only ....................................................... 115V only

Cycle ........................................................................................... 60Hz .............................. ................................ 60Hz

Listed FLA (full load amps) .......................................................... 14 A ............................................................... 15 A

Motor speed ........................................................................1725 RPM ...................................................... 1725 RPM

Starting amps............................................................................... 32 A ............................................................... 43 A

Running amps (no load) ............................................................. 9.5 A .............................................................. 6.8 A

Start capacitor......................................................... 300MFD 125VAC ........................................... 300MFD 125VAC

Running capacitor .......................................................................... n/a ................................................ 50μF 250VAC

Conveyor motor:

Motor type ............................................................. totally enclosed DC ........................................ totally enclosed DC

Horsepower ........................................................................... 1/30 HP .......................................................... 1/30 HP

Phase ........................................................................................ single ............................................................. single

Voltage ................................................................................. 115V DC ........................................................ 115V DC

Listed FLA (full load amps) ....................................................... 0.60 A ............................................................ 0.60 A

Motor speed ........................................................................... 54 RPM .......................................................... 54 RPM

On/off switch .................................................... toggle, with safety key .................................... toggle, with safety key

Power cord........................................... 12AWG x 3C, 6 ft. (1830 mm) ........................ 12AWG x 3C, 6 ft. (1830 mm)

Power plug installed ............................................................. 125V 15A ....................................................... 125V 15A

Recommended circuit and fuse/breaker size Sound emission

.............................. 63 dB at 100cm; 66 dB at 50cm ..................... 71 dB at 100cm; 75 dB at 50cm

Capacities:

Maximum board width (single pass) .......................... 16 in. (406 mm) .............................................. 18 in. (457 mm)

Maximum board width (two passes) .......................... 32 in. (812 mm) .............................................. 36 in. (914 mm)

Maximum board thickness .......................................... 3 in. (76.2 mm) ............................................... 3 in. (76.2 mm)

Minimum board length ............................................. 2-3/8 in. (60 mm) ............................................ 2-3/8 in. (60 mm)

Minimum board thickness

...................................... 1/32 in. (0.8 mm) ............................................ 1/32 in. (0.8 mm)

Main materials:

Main body .......................................... aluminum die casting and steel ...................... aluminum die casting and steel

Open stand .................................................................................. steel ............................................................... stee l

Drum ..................................................................... extruded aluminum ........................................ extruded aluminum

Extension tables (optional) .......................................................... steel ............................................................... stee l

Conveyor table ............................................................................. steel ............................................................... steel

Drum height adjustment handle ................................................ plastic ............................................................. plastic

Sanding drum:

Drum dimensions ............................... dia. 5 in. x 16L (127 x 406 mm) ...................... dia. 5 in. x 18L (127 x 457 mm)

Drum speed ........................................................................1725 RPM ...................................................... 1725 RPM

Sanding paper installed ............................................................ 80 grit ............................................................. 80 grit

Drum elevation per one rotation of handwheel ........................ 1/16 in. .......................................................... 1/16 in.

Subject to local/national electrical codes.

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.

Use of a carrier or backer board (not provided) is recommended for cuts 1/16” or less. See sect. 9.3.

.............................. 20A ................................................................ 20A

Conveyor:

Conveyor speed……………………………………infinitely variable within 0 to 10 FPM (0-3 MPM) .............................

Conveyor table dimensions……………………………..17-15/16 x 16-17/32 in. (456 x 420 mm).................................

Conveyor height from floor…………………………………………..31-31/32 in. (812 mm) ...........................................

Dust collection:

Dust port outside diameter ............................................ 4 in. (100mm) ................................................. 4 in. (100mm)

Minimum extraction volume required ................ 400 CFM (11.3 CMM) .................................... 400 CFM (11.3 CMM)

Dimensions:

Shipping carton, base machine………………………..38-25/32 x 22-7/16 x 20-1/16 in. (985 x 570 x 510 mm) ..........

Shipping carton, open stand…………………………………33-7/8 x 16-3/8 x 4-3/4 in. (860 x 415 x120 mm) .............

Assembled dimensions…………………………………….20 x 49-15/16 x 39-5/8 in. (508 x 1269 x 1007 mm .............

Weights:

Net weight ..................................................................... 156 lb. (71 kg) ................................................ 164 lb. (75 kg)

Shipping weight ............................................................ 182 lb. (83 kg) ................................................ 190 lb. (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-series Sanders. These are referenced throughout the manual and will help to familiarize you with the operation and functions of the machine .

Figure 5-1

Read and understand the

entire contents of this manual before attempting set-up or operation! Failure to comply may cause serious injury.

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 Warranty card (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)

Figure 6-1: box #1 (main unit)

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 6-2: box #2 (stand assembly)

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 counterclockwise 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.

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 35 pounds. 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 M8x1 2 socket h ead cap screws and washers. Finger tighten only.

3. Position tables slightly below conveyor belt surface for proper support of s tock. 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.

6.6 Dust collection

Dust collection is mandatory for a safe work environment and extended abrasive life. The JWDS-1632/1836 is equipped with a 4-inch dust collection port. Secure a 4-inch dust collection hose to the port with a hose clamp (Figure 6-5), and connect to a high volume dust collector (minimum 400 CFM). Note: Dryer vent hose is not acceptable

for this purpose.

A standard shop type canister (16 gal. or larger) can be used for short periods of sanding time but requires converting the hose size down to 2-1/2”. An adaptor is required.

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, 3-inch wide abrasive strip is pre-installed on the drum. Optional pre-cut (“Ready-to-Wrap”) abrasives of different grits are also available; see sect. 14.0.

(TIP: If you are using an after-market abrasive, use a new JET-supplied abrasive as a template to quickly cut a new strip. Alternatively, a diagram is supplied in Figures 6-6 and 6-7 showing trim measurements.)

Figure 6-4: extension table alignment

Figure 6-6: abrasive trimming – JWDS-1632 ONLY

(not applicable to Ready-to-Wrap strips)

Figure 6-7: abrasive trimming – JWDS-1836 ONLY

1. Press fastener lever (Figure 6-8) on outboard (left) end of drum, and insert tapered end of abrasive through slit in fastener, as shown. Insert approximately 3-inches of abrasive strip into fastener. Align tapered edge of abrasive strip with left edge of drum.

6. 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 6-10

7.0 Electrical connections

Figure 6-8

2. Release fastener lever to secure end of strip.

3. Begin wrapping abrasive around drum. The tapered edge of strip end should follow as close as possible to edge of drum.

4. Continue to wrap abrasive in spiral fashion by rotating drum with one hand and guiding strip with the other. See Figure 6-9.

Successive windings of strip must not have any overlap. They should be flush with previous windings or with a slight gap between.

Figure 6-9

5. Press inboard take-up lever (Figure 6-10) and insert trailing end of strip as far as it will go. If necessary, trim tapered end of abrasive strip.

All electrical connections must be done by a qualified electrician in compliance with all local codes and ordinances. Failure t o comply may result in serious injury.

The JWDS-1632 and JWDS-1836 Sander are rated at 115-volt power only. The sander comes with a plug designed for use on a circuit with a grounded outlet that looks like the one pictured in Figure 17.

Before connecting to power source, be sure switch is in off position.

It is recommended that the sander be connected to a dedicated 20 amp circuit with circuit breaker or fuse. If connected to a circuit protected by fuses, use time delay fuse marked “D”. Local codes take

precedence over recommendations.

7.1 GROUNDING INSTRUCTIONS

This machine must be grounded. In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Do not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified electrician.

Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor.

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