JET OES-689-BLK Oscillating Edge Sander: Operating Instructions and Parts Manual

1.0 Warranty and Service

JET® warrants every product it sells against manufacturers' defects. For service or repair, contact Technical Service at 1-800-274-6846, Monday-Friday, 8 AM to 5 PM CST.

The general warranty period is specified in the product literature or on the official JET website. Accessories have a one-year limited warranty from the date of receipt. Consumable items have a 90-day limited warranty against manufacturer's defects.

This warranty covers the initial purchaser from the date of delivery and applies to defects in workmanship or materials, excluding failures due to misuse, abuse, negligence, accidents, normal wear-and-tear, improper repair, alterations, or lack of maintenance. JET woodworking machinery is designed for wood; use with other materials may void the warranty, with exceptions for acrylics and natural items for wood turning.

Woodworking products used commercially or industrially with a Five Year Warranty default to a Two Year Warranty. Contact Technical Service for clarification.

For technical support, call 1-800-274-6846. Proof of initial purchase is required. JET has Authorized Service Centers throughout the United States; find one via the website or by calling.

JET is continuously updating products. For the latest information, check with your local distributor or visit the JET website.

This warranty grants specific legal rights subject to applicable state law. Implied warranties are limited to the period of the limited warranty. JET is not liable for death, injuries, or property damage, or for incidental, special, or consequential damages arising from product use.

JET sells through distributors. Specifications in JET materials are general information and not binding. JET reserves the right to make alterations without prior notice. JET branded products are not sold in Canada by JPW Industries, Inc.

Product Listing with Warranty Period:

NOTE: JET is a division of JPW Industries, Inc.

3.0 Safety Warnings

General Safety Precautions:

• Read and understand the entire owner's manual before assembly or operation.
• Heed all warnings posted on the machine and in the manual to prevent serious injury.
• Replace warning labels if obscured or removed.
• This sander is for use by trained and experienced personnel only. Seek proper training if unfamiliar with operation.
• Use the sander only for its intended purpose. JET disclaims warranty and liability for injuries resulting from other uses.
• The industrial-grade JET Black coating on the table and extension table can be damaged by metal or sharp objects. Handle with care.
• Always wear approved safety glasses/face shields. Everyday eyeglasses are not sufficient.
• Before operating, remove loose jewelry, roll up sleeves, and avoid loose clothing. Confine long hair. Non-slip footwear is recommended. Do not wear gloves.
• Wear ear protection if noise exceeds safe levels.
• Do not operate while tired or under the influence of drugs, alcohol, or medication.
• Ensure the switch is OFF before connecting to power.
• Ensure the machine is properly grounded.
• Perform all adjustments and maintenance with the machine unplugged.
• Remove all adjusting keys and wrenches before turning the machine on.
• Keep safety guards in place during use. Replace them immediately after maintenance.
• Inspect damaged parts before further use. Ensure guards and parts function properly and are aligned. Repair or replace damaged items.
• Provide adequate space and non-glare overhead lighting for the work area.
• Keep the work area clean and free of scrap material, oil, and grease.
• Keep children and visitors at a safe distance. Child-proof the workshop.
• Give your work undivided attention; avoid distractions and horseplay.
• Maintain a balanced stance and do not overreach.
• Use the correct tool for the job at the correct speed and feed rate. Do not force the tool.
• Use recommended accessories; improper accessories can be hazardous.
• Maintain control of the workpiece, ensuring it is stabilized. Hold workpiece firmly with both hands against the table. Use the miter gauge and backstop. Maintain a maximum 1/16-inch gap between the table edge and sanding belt.
• Keep fingers, hands, and body parts away from the sanding belt during operation.
• Use a proper, heavy-gauge extension cord in good condition. An undersized cord can cause voltage drop and overheating. Refer to Table 1 in Section 8.4 for guidance.
• Do not stand on the machine; it could tip over.
• Never leave the machine running unattended. Turn off power and wait for it to stop completely.
• Remove loose items and unnecessary work pieces from the area before starting.
• Do not use in damp or wet locations or expose to rain. Keep the work area well-lighted.
• This sander is intended for wood and wood products only. Using it with metal products and a dust collector can be a fire hazard.
• Do not sand workpieces that are too small to be safely supported.
• Allow the machine to reach operating speed before sanding.
• Do not operate with a damaged drive wheel, idler wheel, or sanding belt.
• Maintain the machine with care, following maintenance instructions.
• Turn off and disconnect power before cleaning or servicing. Use a brush or compressed air for debris removal; do not use hands.

Safety Notice Definitions:

• CAUTION: Indicates that if precautions are not heeded, minor injury and/or possible machine damage may occur.
• WARNING: Indicates that if precautions are not heeded, serious, or possibly fatal, injury may occur.

SAVE THESE INSTRUCTIONS

4.0 About this Manual

This manual provides safe operation and maintenance procedures for the JET Model OES-689-BLK Sander. It includes instructions on installation, safety, general operation, maintenance, and parts breakdown. The machine is designed for consistent, long-term operation when used as directed.

For questions or comments, contact your local supplier or JET. Visit www.jettools.com for more information.

Register your product using the mail-in card or online at www.jettools.com/product-registration.

WARNING: Read and understand the entire contents of this manual before attempting assembly or operation! Failure to comply may cause serious injury!

5.0 Specifications

Specifications are current at publication but subject to change without notice due to continuous improvement.

6.0 Features

Diagram showing the JET OES-689-BLK oscillating edge sander. Key components labeled include: Sanding Belt, Table, Oscillation Adjustment, Tension Arm, Table Raising and Lowering Handwheel, ON/OFF Switch, Motor, and 4" Dust Port.

7.0 Setup and Assembly

CAUTION: The machine's industrial-grade low-friction corrosion-resistant coating on the table and extension table can be damaged by metal or sharp objects. Use care during setup and assembly.

Unpack the sander and inspect for damage, reporting any issues to the distributor and shipping agent immediately. Retain shipping materials until assembly and operation are confirmed. Thoroughly read the manual before proceeding.

Compare contents with the parts list to ensure all parts are included. Report missing parts to your distributor.

7.1 Shipping Contents

Cabinet Contents (Figure 7-1):

• 1 - Door with Latch (A)
• 1 - Cabinet Front Panel (B)
• 2 - Cabinet Side Panels (C)
• 1 - Cabinet Rear Panel (D)
• 1 - Cabinet Shelf (E)
• 4 - Sanding Belt Hooks (F)

Hardware Contents (Figure 7-2):

• 4 - Rubber Feet with M10 Hex Nuts (G)
• 4 - M8x16 Hex Cap Screws (H)
• 4 - 8mm Flat Washers (H)
• 4 - M8x25 Hex Cap Screws (I)
• 4 - 8mm Flat Washers (I)
• 4 - 8mm Lock Washers (I)
• 8 - M8x16 Carriage Bolts (J)
• 8 - 8mm Flat Washers (J)
• 8 - M8 Hex Nut (J)
• 8 - M5x10 Socket Head Button Screws (K)
• 8 - 5mm Flat Washers (K)

Other Contents (Figure 7-3):

• 1 - Belt Tensioning Handle (L)
• 5 - Hex Wrenches (2.5, 3, 4, 5, 6mm) (M)
• 1 - Door Latch Keys (N)
• 1 - Miter Gauge (O)
• 1 - Belt Tracking Adjustment Tool (P)
• 1 - Extension Table Assembly (Q)

7.2 Assembly

CAUTION: The machine's industrial-grade low-friction corrosion-resistant coating on the table and extension table can be damaged by metal or sharp objects. Use care when installing and assembling.

7.2.1 Cabinet Assembly

Refer to Figure 7-4:

1. Remove all contents from the shipping container.
2. Clean rust-protected surfaces with a mild solvent; avoid paint or lacquer thinner, gasoline, or mineral spirits, as they can damage painted surfaces.
3. Attach rubber feet (A) with M10 hex nuts (B) to the bottoms of the side panels (C).
4. Attach side panels (C) to the back panel (D) using four M8x16 carriage bolts, 8mm flat washers, and M8 hex nuts. Hand-tighten only.
5. Attach side panels (C) to the front panel (E) using four M8x16 carriage bolts, 8mm flat washers, and M8 hex nuts. Hand-tighten only. Ensure the door hinge mounting hole on the front panel faces up.
6. Mount the bottom panel (F) inside the cabinet using four M8x16 hex cap screws and 8mm flat washers. Hand-tighten only.
7. Attach four sanding belt hooks (G) to the back panel (D) using eight M5x10 socket head button screws and 5mm flat washers.
8. Firmly tighten all hardware. Ensure the cabinet sits evenly on a level surface before final tightening.

7.2.2 Installing Table and Motor Unit to Cabinet

WARNING: The sanding table assembly is heavy! Use great care and adequate resources when lifting. Failure to comply may cause serious injury or property damage!

Refer to Figure 7-5:

1. With assistance, carefully lift the sanding table assembly (A) from the shipping container and place it onto the cabinet assembly (B).
2. Align the threaded holes in the sanding table assembly (C) with the holes in the cabinet (D).
3. Attach the sanding table assembly to the cabinet using four M8x25 hex cap screws, M8 lock washers, and 8mm flat washers. Tighten firmly.

7.2.3 Installing Cabinet Door

Refer to Figure 7-6:

1. Attach the cabinet door by inserting the lower hinge axle into the top edge of the front panel. Press down the spring-loaded upper hinge axle and insert it into the bottom hole of the sander base. Allow the spring-loaded axle to spring up into place.

7.2.4 Moving Platen to Vertical Position

Refer to Figures 7-7 & 7-8:

1. The sanding platen (A) is initially in the horizontal position. Loosen the locking handle (B).
2. Using the tilting handle (C), rotate the sanding platen to the vertical position (see Figure 7-8).
3. Tighten the locking handle (B) to secure the platen assembly.

7.2.5 Adjusting Table Gap to Sanding Belt

Refer to Figure 7-9:

1. Loosen the four table mounting bolts (A) under the table.
2. Shift the table to achieve a maximum gap of 1/16-inch between the table edge and the sanding belt.
3. Tighten the four table mounting bolts to secure the table position.

7.2.6 Sanding Belt Installation

Refer to Figure 7-10:

1. From the rear, remove the belt guard (A) by unscrewing three lock knobs (B). Remove the sanding belt and removable fence.
2. Place the handle (C) on the belt tensioning lever (D). Move the tension arm handle (C) to the "Loose" position to release tension.
3. Place the new belt on both rollers, ensuring the belt edge is even with the roller edges. Note: Ensure the direction arrow on the belt matches the indicator on the platen (E).
4. Tighten the sanding belt tension by moving the tension arm handle (C) to the "Tight" position. Rotate the belt by hand in the direction indicated by the arrow. If belt tracking needs adjustment, refer to Section 9.3.

7.2.7 Extension Table

Refer to Figure 7-11:

1. Assemble the extension table (D) and extension table post (E) using the M8x25 socket head cap screw.
2. Loosen the two lock knobs (A) securing the dust port/drum guard (B).
3. Swing the dust port/drum guard back to expose the drive drum (C).
4. Tighten the lock knobs (A).
5. Mount the extension table (D) to the sander by inserting the extension table post (E) into the bracket (F).
6. Set the table to the desired height and secure it by tightening the lock knob (G). Important: When the extension table is not in use, the dust port/drum guard must be closed and locked to protect the drive drum.

7.3 Dust Collection

Refer to Figures 7-12:

A sander produces significant wood dust. A dust collection system is strongly recommended for shop cleanliness and to reduce health hazards from wood dust inhalation. A minimum rating of 400 CFM is recommended for your dust collector.

JET offers a full line of dust collection systems. Consult your dealer or visit www.jettools.com.

Connect your dust collection system hose to the 4-inch dust port (A) on the sander. Secure the hose tightly with a hose clamp.

8.0 Electrical Connections

WARNING: Electrical connections must be made by a qualified electrician according to relevant codes. Proper grounding is essential to prevent electrical shock and fatal injury.

Ensure the OFF button is pressed before connecting to the power source.

It is recommended to connect the sander to a dedicated 20-amp circuit with a 20-amp circuit breaker or time-delay fuse marked "D". Local codes supersede these recommendations.

8.1 Grounding Instructions

This machine must be grounded to provide a path of least resistance for electric current in case of malfunction, reducing the risk of electric shock. The tool is equipped with an electric cord with an equipment-grounding conductor and a grounding plug. Plug into a properly installed and grounded matching outlet.

Do not modify the plug. If it does not fit the outlet, have a qualified electrician install the proper outlet.

Improper connection of the grounding conductor can cause electric shock. The green conductor (with or without yellow stripes) is the equipment-grounding conductor. If repairing or replacing the cord or plug, do not connect the grounding conductor to a live terminal.

WARNING: Consult a qualified electrician if grounding instructions are unclear or if you doubt the machine's grounding. Failure to comply may cause serious or fatal injury.

8.2 115 Volt Operation

This model is designed for 115V circuits and requires a grounded outlet matching the machine's plug (Figure 8-1).

If the outlet is not a properly grounded three-pole receptacle, do not use an adapter. Have a qualified electrician install a proper receptacle.

8.3 230 Volt Operation

For 230V single-phase operation, the machine must be rewired, and a 230V plug and receptacle installed as shown in Figure 8-2. Follow these instructions:

1. Disconnect the machine from the power source.
2. The JET Oscillating Edge Sander motor has four leads factory-connected for 115V (A). Reconnect leads for 230V operation as shown in (B).
3. Replace the 115V plug (C) with a UL/CSA listed 230V plug (D). Contact an Authorized JET Service Center or qualified electrician for installation. Ensure compliance with local and national codes.
4. Connect the 230V sander only to an outlet matching the configuration in (D). No adapter should be used.

Refer to Figures 8-2 and 8-3 for wiring and plug/receptacle details.

8.4 Extension Cords

Use of extension cords is discouraged. Position the machine near the power supply if possible. If an extension cord is necessary, use only 3-wire cords with 3-prong grounding plugs and receptacles. Ensure the cord's amperage rating matches the machine's motor plate. An undersized cord can cause voltage drop, loss of power, and overheating.

Do not use damaged or worn cords; repair or replace them before use.

Use Table 1 as a guide for choosing the correct cord size. If in doubt, use the next heavier gauge (smaller gauge number).

Table 1

9.0 Adjustments

WARNING: Disconnect machine from power source before making adjustments to prevent accidental startup.

CAUTION: The machine's industrial-grade low-friction corrosion-resistant coating on the table and extension table can be damaged by metal or sharp objects. Use care when making adjustments.

9.1 Sanding Platen Angle and Table Adjustment

Refer to Figures 9-1 & 9-2:

1. Disconnect the machine from the power source.
2. Lower the table to its lowest position using the handwheel (A, Figure 9-2) to prevent the platen from contacting the table edge during angle adjustment.
3. Loosen the locking handle (B, Figure 9-1).
4. Using the tilting handle (D, Figure 9-2), rotate the sanding platen to the desired position. Use the angle readout gauge (C, Figure 9-1) or a combination square for precise angles.
5. Hold the platen in place and tighten the locking handle (B) to secure it.
6. Raise the table to the desired height. Adjust the table's horizontal position as needed (see Section 7.2.5) to ensure a maximum gap of 1/16-inch between the table edge and the sanding belt for the desired belt angle.

9.2 Changing the Sanding Belt

Refer to Figures 9-3 & 9-4:

1. Disconnect the machine from the power source.
2. Lock the sanding platen in the vertical position (see Section 9.1).
3. Move the tension handle (C) to the "Loose" position to release belt tension.
4. Loosen or remove the lock knobs (B) and remove the belt guard (A).
5. Remove the old belt and install the new belt, aligning the direction arrow on the belt with the indicator on the platen (E). Ensure the belt edge aligns with the roller edges.
6. Tighten the belt tension by moving the tension arm handle (C) to the "Tight" position. Rotate the belt by hand. Adjust tracking if necessary (Section 9.3).
7. Reinstall the belt guard (A) and tighten the lock handles (B). Note: Belts stretch; re-adjust tracking after replacement.

9.3 Belt Tracking Adjustment

This is a fine adjustment procedure. The Motor Mount Tracking Adjustment (Section 9.4) is for coarse adjustment.

To adjust belt tracking:

1. Disconnect the machine from the power source.
2. Push the belt by hand from left to right and observe its position on the rollers. The edges of the belt should remain within the roller edges.
3. If adjustment is needed: Insert the belt tracking adjustment tool into the micro adjust lock nut (A) and turn to loosen.
4. Turn the micro adjusting screw (B) in 1/4 turn increments until the belt tracks evenly. Turning towards the back raises the belt; turning towards the front lowers it.
5. Tighten the micro adjusting lock nut (A) by turning it towards the front.
6. Reconnect power and start the sander. Observe belt movement. Adjustment is correct when belt edges stay within roller edges.
7. Ensure the micro adjust lock nut (A) is tightened.
8. If tracking cannot be corrected, proceed to Section 9.4.

9.4 Motor Mount Tracking Adjustment

Refer to Figure 9-6:

The OES-689-BLK has factory-set tracking adjustment bolts (A) on the motor plate. If belt tracking cannot be corrected using Section 9.3, these bolts may need adjustment (coarse adjustment).

To adjust:

1. Disconnect the machine from the power source.
2. Slightly loosen the four motor mount nuts (B) to allow adjustment of tracking screws (A).
3. Loosen the two locking hex nuts (C) securing the tracking screws (A).
4. Turn one screw (A) 1/4 turn and rotate the belt by hand to observe the effect. If it moves correctly, proceed to step 6.
5. If the belt moves in the wrong direction, back off 1/4 turn and tighten the other screw 1/4 turn.
6. Tighten both locking nuts (C) and motor mount nuts (B). Fine-tune tracking using Section 9.3.

9.5 Table Adjustment

WARNING: Do not position the table below the sanding belt! Maintain at least a 1/16" overlap between the table and belt to prevent material or finger entanglement. Failure to comply may cause serious injury!

Refer to Figure 9-7:

1. Loosen the two lock knobs (A).
2. Raise or lower the work table to the desired level using the handwheel (B).
3. Tighten the two lock knobs.

9.6 End Guard

Refer to Figure 9-8:

The end guard (C) can be swung out of the way for sanding long workpieces or for contour sanding with the extension table (Section 9.7). The miter gauge must be removed for sanding long workpieces.

1. Loosen the two lock knobs (A & B) securing the dust port/drum guard (C).
2. Swing the dust port/drum guard back to expose the drive drum (D).
3. For sanding long workpieces, remove lock knob A and the backstop (E).
4. Tighten lock knob B to secure the dust port/drum guard in the open position.
5. For contour sanding, install the extension table per Section 7.2.6.

9.7 Extension Table

Refer to Figure 9-9.

The extension table facilitates contour sanding and can be raised or lowered. Refer to Section 7.2.6 Extension Table for attachment and use instructions.

10.0 Operation

WARNING: Read and understand all safety information in Section 3.0 Safety Warnings before operating.

CAUTION: The machine's industrial-grade low-friction corrosion-resistant coating can be damaged by metal or sharp objects. Use care during operation.

This oscillating belt edge sander is designed for long-term operation, producing superior sanded wood surfaces. Oscillation helps prevent sanding marks and extends belt life.

Always use the miter gauge to support workpieces when possible.

CAUTION: This machine is for sanding wood products only. Do not use for sanding metal products.

10.1 Horizontal Sanding

Refer to Figures 10-1 & 10-2:

For horizontal sanding, the platen must be locked in the horizontal position (Figure 10-2). Secure the removable fence (D) to the table:

1. Ensure the platen is in the horizontal position (Section 9.1).
2. Place 5/16" flat washers and guide blocks (B) onto two 12mm lock knobs (A).
3. Insert the guide blocks/lock knobs into the miter slot (C).
4. Place the removable fence (D) on the table and tighten the lock knobs (A).

The backstop (E) can be used by swinging the dust port/drum guard (F) out of the way and positioning the backstop, securing it with lock knob (G) and a 5/16" flat washer.

10.2 Vertical Sanding

Refer to Figure 10-3:

For vertical sanding, lock the platen (A) in the vertical position. The backstop (B) and/or miter gauge (C) can be used.

Miter Gauge:

1. Slide the miter gauge's guide bar (D) into the miter slot (E) on the table.
2. Set the miter angle and secure by tightening the lock handle (F).

Backstop:

Position the backstop (B) and secure it with the lock knob (G) and a 5/16" flat washer.

10.3 Contour Sanding

Refer to Figure 10-4.

Contour sanding is performed using the extension table (D) mounted on the motor, where the sanding belt wraps around the drive drum (C). To set up for contour sanding:

1. Loosen the two lock knobs (A) securing the dust port/drum guard (B).
2. Swing the dust port/drum guard back to expose the drive drum (C).
3. Tighten the lock knobs (A).
4. Mount the extension table (D) by inserting its post (E) into the bracket (F).
5. Set the table height and secure with lock knob (G). Important: Ensure the dust port/drum guard is closed and locked when the extension table is not in use.

11.0 Maintenance

WARNING: Always disconnect power and remove the safety key before performing maintenance. Failure to do so may result in serious personal injury.

CAUTION: The machine's coating can be damaged by metal or sharp objects. Use care during maintenance.

Periodically check the drums for wear; they may need replacement after extended use.

Clean the sander frequently. Check that all screws, nuts, and fasteners are tight.

Check the sanding belt condition; replace if worn.

If the power cord is worn, cut, or damaged, have it replaced immediately.

11.1 Lubrication

All ball bearings are sealed for life and require no additional lubrication.

Periodically apply grease to the table lift worm gear for smooth operation.

12.0 Troubleshooting

13.0 Replacement Parts

To order parts or reach the service department, call 1-800-274-6848, Monday-Friday, 8:00 AM - 5:00 PM CST. Have the Model Number and Serial Number ready.

Non-proprietary parts, like fasteners, can be found at local hardware stores or ordered from JET. Some parts are for reference only and may not be available individually.

13.1.1 OES-689-BLK Cabinet Assembly – Exploded View

Diagram showing the exploded view of the cabinet assembly, detailing various numbered parts and their connections.

13.1.2 OES-689-BLK Main Machine Assembly – Exploded View

Diagram showing the exploded view of the main machine assembly, detailing numerous numbered parts and their interconnections.

13.1.3 OES-689-BLK Table Assembly – Exploded View

Diagram showing the exploded view of the table assembly, detailing numbered parts and their arrangement.

13.2 OES-689-BLK Oscillating Edge Sander – Parts List

** Some parts are shown for reference only and may not be available for order individually. Non-proprietary parts, such as fasteners, can usually be found at local hardware stores.

14.0 Electrical Connections

14.1 Electrical Connections for 1.75HP, 1PH, 115V

Diagram showing the wiring for 115V input, illustrating connections to the capacitor, start/stop switches, and the 115V plug.

14.2 Electrical Connections for 1.75HP, 1PH, 230V

Diagram showing the wiring for 230V input, illustrating connections to the capacitor, start/stop switches, and the 230V plug.