Oliver 6303 User manual
READ AND UNDERSTAND ALL INSTRUCTIONS IN THIS MANUAL BEFORE
ATTEMPTING TO ASSEMBLE OR OPERATE THE MACHINE.
FOLLOW THE INSTUCTIONS AND THINK SAFETY!
THE OWNER OF THIS MACHINE IS SOLELY RESPONSIBLE FOR THE SAFETY OF ANYONE USING
THIS MACHINE. SUCH RESPONSIBILITY INCLUDES BUT NOT LIMITED TO:
• PROPER ASSEMBLY, OPERATION, INSPECTION, MAINTENANCE, AND RELOCATION OF
THE MACHINE.
• PROPER TRAINING FOR THE OPERATORS AND ENSURES THIS MANUAL IS AVAILABLE
AT ALL TIMES.
• USAGE AUTHORIZATION.
• USAGE OF SAFETY AND PROTECTION DEVICE.
OLIVER MACHINERY DISCLAIMS ANY LIABILITY FOR MACHINES THAT HAVE BEEN ALTERED OR
ABUSED. OLIVER MACHINERY RESERVES THE RIGHT TO EFFECT AT ANY TIME, WITHOUT PRIOR
NOTICE, THOSE ALTERATIONS TO PARTS, FITTINGS, AND ACCESSORY EQUIPMENT WHICH THEY
MAY DEEM NECESSARY FOR ANY REASON WHATSOEVER.
** SAVE THIS MANUAL FOR FUTURE REFERENCES. **
PROP 65 NOTICE
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust,
and/or other chemicals known to the State of California to cause cancer, birth defects or other
reproductive harm.
Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement and other masonry products.
• Arsenic and chromium from chemically-treated lumber.
Avoid inhaling wood dust and other harmful chemicals. Use a dust mask and/or other safety
devices for personal protection.
For more information go to http://www.P65Warnings.ca.gov/wood
Table of Contents
Introduction············································· 4
Specifications ·········································· 5
Identification ··········································· 7
Safety······················································ 8
General Safety Guidelines···························8
Safety Guidelines Specific to Sander··········10
Electricals ···············································11
Minimum Circuit Size Required for Model
6303 Sander ·············································11
Grounding ················································11
Electrical Wiring ·······································12
Setup······················································13
Shop Preparation······································13
Receiving··················································14
Inventory ·················································15
Initial Assembly ········································17
Rubber Feet Installation··································17
Cabinet Assembly············································18
Mounting Sander ············································20
Cleaning···························································20
Sanding Belt Installation··································21
Dust Chute Installation····································22
Stop Bracket Installation ·································22
Set Up Contour Sanding Table ························23
Dust Collection ·········································24
Test Run···················································25
Operation···············································26
Preparation before Sanding ······················26
Material Selection and Inspection ··················26
Support Large Workpiece································26
Safety Devices ·················································26
Adjustments·············································27
Platen Angle Adjustment ································27
Table Height Adjustment ································27
Edge Sanding············································28
Horizontal Sanding ···································29
Contour Sanding·······································30
Accessories ············································ 31
Maintenance ········································· 32
Changing Sanding Belt ······························33
Inspect / Adjust Belt Tracking ···················34
Troubleshooting····································· 35
Wiring Diagrams···································· 37
Parts List················································ 38
Table and Base ·········································38
Stand ·······················································39
Motor and Sander Assembly ·····················40
Idler Drum················································41
Maintenance Record······························ 46
Notes····················································· 47
Warranty and Service····························· 48
4 | Page Oliver Machinery 6303 Sander
Introduction
Thank you for choosing Oliver! This manual contains important information on how to safely set up,
operate, and maintain this machine. Please take the time to read through this manual, and make sure you
understand all instructions.
While this manual may provide tips on optimizing the result of your workpiece, the manual is not intended
as a substitute for formal woodworking training. If you need to know how to safely perform an operation,
please consult knowledgeable and qualified sources before proceeding further.
We made every effort to keep this manual up-to-date. Instructions, specifications, drawings, and
photographs in this manual should match the machine delivered. If you find any differences, or anything
that seems confusing in this manual, please check our website for an updated version:
WWW.OLIVERMACHINERY.NET/MANUALS
Alternatively, you can contact our technical support for help:
1-800-559-5065
Before calling, please note down the manufacture date and serial
number of the machine. You can find the information on a
nameplate located on the back of the machine cabinet. This
information is needed to provide proper technical support, and
to determine if an updated manual is available for your machine.
Please let us know how well this manual serves you. If you have
any suggestions, please call the number above or email us at:
info@olivermachinery.net
We love to hear from our customers and make improvements.
6303 Sander OLIVERMACHINERY.NET 5|Page
Specifications
Quick View
Model
6303 Sander
Stock Number
6303.001
Power Requirement
115V / 230V, 1Ph, 60Hz
Motor
TEFC 1.5HP, 115V / 230V, 1Ph
Sanding Belt Size
6” x 89”
Sanding Belt Tilt
0° - 90°
Dimensions
48“(W) x 23”(D) x 48”(H)
Footprint
21-1/2”(W) x 16-1/2”(D)
Fully Assembled Weight
257 lbs.
Warranty
1 Year (Motor and electronics)
2 Years (All other parts)
Product Dimensions
Width x Depth x Height (Fully Assembled)
48“(W) x 23”(D) x 48”(H)
Footprint
21-1/2” (W) x 16-1/2”(D)
Fully Assembled Weight
257 lbs.
Shipment Info
Packaging
Cardboard Box and Pallet
Content
Sander with Included Accessories
Dimensions
36”(L) x 35-1/2”(W) x 56”(H)
Weight
273 lbs.
Approx. Assembly Time
60 Minutes
Must Ship Upright
YES
Stackable
NO
Electricals
Power Requirement
115V / 230V, 1Ph, 60Hz
Prewired Voltage
115V
Full Load Current Rating
18A @ 115V, 9A @ 230V
Recommended circuit size
20A @ 115V, 15A @ 230V
Power Switch Type
Magnetic Switch
Connection Type
NEMA 5-15 Plug with 6’ 14AWG Cord
6 | Page Oliver Machinery 6303 Sander
Motor
Motor Type
TEFC
Horsepower
1.5HP
Power Requirement
115V / 230V, 1Ph, 60Hz
Full Load Current Rating
18A @ 115V / 9A @ 230V
Speed
3450 RPM
Efficiency / Power Factor
75% / 90%
Power Transfer Mechanism
Direct Drive
Bearing type
Permanently Sealed Ball Bearing
Sander
Sanding Belt Size
6” x 89”
Sanding Belt Speed
3900FPM
Sanding Belt Tilt
0° - 90°
Sanding Belt Oscillation Stroke
1/2"
Oscillations Per Minute
108
Sanding Belt Drum Material
Aluminum
Platen Construction
Steel with Graphite Coating
Platen Dimensions
32-1/2” x 7”
Table
Material
Precision Ground Cast Iron
Main Table Dimensions
29-3/4“(W) x 10”(D)
Main Table Height from Floor
37-3/4” – 40-3/4”
Miter Slot Type
T-Slot (Standard Size)
Miter Slot Size (W x H)
3/4” x 3/8”
Contour Sanding Table Dimensions
11-7/8”(W) X 9-7/8”(D)
Contour Sanding Table Height from Floor
37” – 40-1/2”
Fence Size
3” x 23-1/2”
Miter Gauge
Angle Range
-60° to 60°, with positive stops at -45°, 0°, 45°
Miter bar Length
8-3/4”
Safety
Number of Dust Ports
1
Dust Port Size
4”
Minimum CFM Required
650 CFM
Sound Rating @ 2’ distance
100 dB
Others
Serial Number Location
On the back of the machine stand.
Certification
CSA 175381
Country of Origin
Taiwan
6303 Sander OLIVERMACHINERY.NET 7|Page
Identification
8 | Page Oliver Machinery 6303 Sander
Safety
Oliver Machinery has made every attempt to provide a safe, reliable, easy-to-use piece of machinery.
Safety, however, is ultimately depending on the individual machine operator. Before operating this
machine, please become familiar with the following safety labels and guidelines.
DANGER
This indicate an imminent hazardous situation which, if not avoided, WILL cause
death or serious injury.
WARNING This means if the warning is not taken seriously, it CAN cause death or serious injury.
CAUTION This means if the precaution is not taken, it MAY cause minor or moderate injury.
IMPORTANT This is a tip about proper operation of the machine to avoid machine damage.
General Safety Guidelines
1. FAMILIARIZE yourself with all safety instructions found in this manual. Know the limitations and
hazards associated with this machine. Do not operate / service this machine until you are properly
trained.
2. ELECTRICAL GROUNDING, when done properly, reduce the risk of electrocution, shocks, and fire.
Make certain that the machine frame is electrically grounded and that a ground lead is included in the
incoming electrical service. In cases where a cord and a plug are used, make certain that the grounding
plug connects to a suitable ground. Follow the grounding procedure indicated in the electrical code
of your area.
3. DISCONNECT the machine from power before performing any service, maintenance, adjustments, or
when changing cutters. A machine under repair should be RED TAGGED to show it should not be used
until the maintenance is complete.
4. EYE PROTECTION: Always wear an approved safety face shield, goggles, or glasses that complies with
ANSI Z87.1 and CSA Z94.3 standards. Common eyeglasses are not safety glasses, and may not provide
adequate protection.
5. EAR PROTECTION: Use hearing protective devices where the noise exceeds the level of exposure
allowed in Section 1910.95 of the OSHA Regulations. When in doubt, use it.
6. OTHER PERSONAL PROTECTION: Before the operation, remove tie, rings, watch, and other jewelry.
Roll up sleeves above elbows. Remove all loose outer clothing and confine long hair. Protective
footwear should be used. Do not wear gloves unless it is instructed to perform particular step(s) in
the manual.
7. GUARDS: Keep machine guards in place for all applicable operations. If any guards are removed for
maintenance, DO NOT OPERATE the machine until all guards are reinstalled. Check clearance between
the guards and the cutter before starting the machine.
8. WORKPLACE SAFETY: Keep the floor around the machine clean. Scrap material, sawdust, oil, and
other liquids increase the risk of tripping or slipping. Be sure to clean up the table before starting the
6303 Sander OLIVERMACHINERY.NET 9|Page
machine. Make certain the work area is well lighted and that a proper exhaust system is used to
minimize dust. Use anti-skid floor strips on the floor area where the operator normally stands and
mark off the machine work area. Provide adequate workspace around the machine.
9. ACCESS CONTROL should be enforced so only trained personnel can access the work area and operate
the machine. Use childproof power switch when applicable.
10. STAY ALERT at all times. Do not operate this machine while under the influence of drugs/alcohol, or
when not feeling well.
11. NEVER STAND ON MACHINE. This prevents injuries from tipping related accidents and accidental
contacts with cutters.
12. REPLACEMENT PARTS: Use only genuine Oliver Machinery replacement parts and accessories
recommended for this machine. Generic parts made by other manufacturers may create a safety
hazard, and WILL void the factory warranty and other guarantees.
13. PROPER USE: Do not use this machine for other than its intended use. If used for other purposes,
Oliver Machinery disclaims any real or implied warranty and holds itself harmless for any injury or
damage which may result from that use.
10 | Page Oliver Machinery 6303 Sander
Safety Guidelines Specific to Sander
Before Work Begins:
1. Inspect the sanding belt for signs of failure. Replace damaged, overstretched, or worn sanding belts.
2. Ensure the sanding belt is tensioned.
3. Inspect the workpiece. Do not process workpieces with loose parts and/or containing dangerous
chemicals. Do not sand wood with high moisture content.
4. Ensure the table is positioned at least 1/16” above the bottom edge of the sanding belt.
5. Ensure the sanding belt guard and the table are locked into position.
When Sanding:
1. Maintain control of the workpiece. Hold the workpiece firmly with both hands and apply light
pressure against the sanding belt. Use the sander table, backstop, miter gauge, or fence to support
the workpiece in different operations.
2. Keep hands away from the sanding belt and other moving parts. Use special jigs to hold down small
workpieces as needed.
3. To avoid kickbacks and sanding belt damages, do not feed the workpiece with sharp corners pointing
against the moving direction of the sanding belt. Instead, sand the sharp corner by placing it at the
trailing position of the workpiece.
Correct Wrong
After Operation
1. STOP THE MACHINE when the operator leaves the machine for any reason.
2. WAIT until the motor comes to a complete stop.
3. CLEAN UP before departure.
6303 Sander OLIVERMACHINERY.NET 11 |Page
Electricals
WARNING
All electrical work must be done by a qualified electrician, and must meet the
electrical code in your area.
Minimum Circuit Size Required for Model 6303 Sander
Stock Number
Voltage
Minimum Circuit Size Required
6303.001
115V
20A
230V
15A
Please ensure the electrical circuit for this machine meets the minimum circuit size requirement. The
minimum circuit size requirement applies to a dedicated circuit that provides power to one 6303 Sander.
If more machines are sharing the same circuit, consult a qualified electrician to ensure the designated
circuit is properly sized for safe operation.
If a circuit is available, but not meeting the minimum circuit size requirement listed above, a new circuit
must be installed for this machine.
Grounding
WARNING Improper grounding can cause electric shock, fire, and equipment damage.
Proper grounding reduces the risk to the operator in the event of electrical malfunction or breakdown.
This machine must be connected to the grounding conductor when available, and all grounding
connections must meet or exceed the electrical code requirements in your area. Furthermore, all grounds
must be verified and must meet or exceed the electrical requirement of the machine. If grounding is not
available, consider the use of a GFCI protection device as an alternative, if this complies with the electric
code in your area.
12 | Page Oliver Machinery 6303 Sander
Electrical Wiring
This machine is pre-wired for 115V, with a cord and a NEMA 5-15 plug. Please refer to section “Wiring
Diagrams” on page 37 for rewiring this machine for 230V operations. A 230V compatible plug is required.
Use of extension cord is not recommended. If you need to use an extension cord to connect to a power
source, select a durable cord type with high temperature rating (90C° or above). Use the minimum amount
of extension cord as needed.
Minimum cord size (AWG) required based on amperage draw and length of the cord:
Amps
Power Cord Length
25 feet
50 feet
75 feet
100 feet
8 to 12
14
14
12
10
12 to 15
12
12
10
10
15 to 20
10
10
10
NR
21 to 30
10
NR
NR
NR
*NR: Not Recommended
WARNING
Use properly sized wires that meet or exceed the power requirement of your
machine. Using undersized wires may cause overheating and increase the risk of fire
and machine damage.
6303 Sander OLIVERMACHINERY.NET 13 |Page
Setup
Shop Preparation
Space Requirement
The dimensions of this machine are 48“(L) x 23”(W). You will need
additional spaces for manipulating your workpiece, electrical
connection, and dust collection.
Keeping this sander several feet away from the wall allows easy access
to the belt guard for changing the sanding belt. This also allows you to
operate on the backside of the machine with the sanding belt in a
horizontal position.
Mounting this sander on a sturdy mobile base with lockable casters can
be helpful for workshops with limited space.
Load Limits
This machine has a shipping weight of 273 lbs., and a net weight of 257 lbs. Please ensure all lifting tools
and building structures have adequate load capacity, for transporting and supporting the total weight of
this machine, the operator, and related items.
Electricals
Make sure a properly sized circuit and electrical outlet are available near the machine. Please refer to
section “Electricals” on page 11 for details regarding electrical requirements.
Lighting
Adequate lighting is needed for operating this machine. Overhead, non-glare lighting should be installed.
Safety Labels
If this machine introduces a new safety hazard to your workplace. Please display proper warning signs in
highly visible location(s).
Dust Collection
Wood dust created by this sander is a health hazard. High quality dusk masks should be available for using
the sander.
Connect this machine to a dust collection system. Check air suction strength regularly to ensure dust and
shavings are effectively removed.
CAUTION
Air resistance and leakage in a dust collection
system impact its effectiveness.
Use
a dust collection system that is rated above
650 CFM at the dust port
. Doing so
improves air quality in the workplace, and
prevents the machine from jamming.
14 | Page Oliver Machinery 6303 Sander
Receiving
Your shipment should come in one box. Upon receiving your shipment, check for any significant damages
before signing the delivery confirmation.
CAUTION
Always wear safety goggles and gloves when removing straps for securing your
package. Strapping may spring back violently when released and cause injury.
Moving Machine into the Shop
Your machine will be delivered by freight service, and it will be left outside of your workshop by default.
On the day of delivery, please be sure help is available to move the machine to its final location.
WARNING
6303 Sander has a gross weight of 273 lbs. and a net weight of 257 lbs.
Safe moving techniques and proper lifting equipment are required, or serious
personal injury may occur.
WARNING
Your machine may be secured by the straps. Do not lift your shipment by the
strap. They are not designed to hold the total weight of your shipment. They may
snap without warning and cause serious injury and machine damage.
Unboxing
You should find the sander assembly and other parts packed inside the box.
IMPORTANT If items are damaged, please call us immediately at 1-800-559-5065
6303 Sander OLIVERMACHINERY.NET 15 |Page
Inventory
Carefully unwrap the packaging and make sure all components are included in the shipment. Layout all
items received and inventory them.
Package 1 - Parts for rubber feet installation
Item
Description
Quantity
1
Rubber Feet
4
2
Round Head Screws
(5/16"-18*3/4")
4
3
Washers (5/16”)
4
4
Nuts (5/16”)
4
Package 2 – Mounting hardware
Item
Description
Quantity
5
Fender washers (5/16”)
4
6
Washers (5/16”)
18
7
Lock washers (5/16”)
10
8
Hex nuts (5/16”)
8
9
Hex nuts (5/16”)
10
Package 3 – Cabinet panels
Package 4 – Shelf and mounting screws
Item
Description
Quantity
10
Pan head screws (M5x10)
2
11
Lock washers
2
12
Washers
2
Package 5 – Dust chute and mounting screws
16 | Page Oliver Machinery 6303 Sander
Package 6 – Stop bracket
Package 7 – Contour sanding table and
accessories
Package 8 – Knobs
Package 9 - Belt tensioner handle
Package 10 - Belt tracking adjustment tool
Package 11 – Miter gauge
NOTICE: If you cannot find an item in the list above, please check if it is still attached to the packaging.
Occasionally the item may have been pre-installed in the factory. See section “Parts List” to check if a
component is included or installed.
NOTICE: This machine comes with various standard sized, non-proprietary parts. If any of these parts are
missing, we be happy to deliver them to you. To have the machine up and running as soon as possible,
you can also find these parts at your local hardware store.
Additional Items Needed for Machine Assembly
Item
Purpose
Safety glasses
Protection
Disposable gloves
Protection
Paper Towel
Cleaning
Rust Inhibitor
Cast iron table top rust protection.
12mm Wrench (1 Pair)
Machine Assembly
Straight Head Screw Driver
Machine Assembly
Philips Head Screw Driver
Machine Assembly
6303 Sander OLIVERMACHINERY.NET 17 |Page
Initial Assembly
Rubber Feet Installation
1. Gather all hardware in “Package 1”
2. Insert the round head screw and washer into
the rubber feet.
3. Mount the feet at the bottom of the side
panel. Thread a nut into the screw.
4. Hold the bolt in place while tightening the
screw with a flat head screwdriver.
18 | Page Oliver Machinery 6303 Sander
Cabinet Assembly
For this step, you will need:
1. The panels with rubber feet already mounted:
2. All mounting hardware in “Package 2”:
Item
Description
Quantity
5
Fender washers (5/16”)
4
6
Washers (5/16”)
18
7
Lock washers (5/16”)
10
8
Hex nuts (5/16”)
8
9
Hex nuts (5/16”)
10
3. The shelf and it’s mounting hardware:
Item
Description
Quantity
10
Pan head screws (M5x10)
2
11
Lock washers
2
12
Washers
2
6303 Sander OLIVERMACHINERY.NET 19 |Page
4. Attach the panels as illustrated in the diagram below. To make sure the top of the cabinet sits flush
with the base of the sander assembly, it’s recommended to install the panels upside down on a flat
surface. Tighten the bolts to hold the panels together, but do not fully tighten them yet.
5. Place the cabinet right side up. Make sure it does not rock on the ground. Adjust the joints of the
panels as needed. Fully tighten all the bolts before the next step.
20 | Page Oliver Machinery 6303 Sander
Mounting Sander
WARNING
The sander assembly is very heavy. Mounting the sander on the cabinet requires
multiple people and/or equipment with adequate lifting power. Use proper lifting
techniques and protective gear. Failure to comply can result in serious injury and
machine damage.
1. With additional help, remove the sander
assembly from the box.
2. Place the unit on top of the cabinet.
3. Open the cabinet door and locate the screw
holes at the top. Align the screw holes of the
sander assembly and the cabinet.
4. From the mounting hardware package,
prepare two sets of flat washers (#6), lock
washers (#7), and 5/16” hex bolts (#9). Insert
the lock washer into the bolt, and then the
flat washer.
5. Secure the sander assembly on the cabinet.
Tighten the bolt and washers with a 12mm
wrench.
Cleaning
To prevent rusting during shipment, the unpainted cast
iron tabletops are covered with rust protectant and
plastic film. Remove the plastic film and wipe off rust
protectant with paper towels. Using WD-40 can help
dissolving the rust protectant and make it easier to
remove.
Once all rust protectant is removed, routinely coat the
tabletops with rust preventive such as Boeshield® T-9
or paste wax. Do not use rust preventives that contain
silicon, which is known to interfere with certain
finishes and glues.
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