Oliver 4275 User manual

Jointer
Model 4275
Owner’s Manual
For Models Manufactured Since 06/2019
175370
Oliver Machinery
1-800-559-5065
6902 S 194th St, Kent, WA 98032
[e-mail]
WWW.OLIVERMACHINERY.NET
Stock Number: 4275.101.4S
4275.102.4S
Manual Version: 1.0.0

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············································· 6
Specifications ·········································· 7
Quick View·················································7
Product Dimensions····································7
Shipment Info·············································7
Electricals···················································7
Motor ························································8
Jointer Capacity and Performance···············8
Fence ·························································8
Cutterhead·················································8
Table··························································8
Measurements ···········································9
Safety·························································9
Others························································9
Identification ··········································10
Safety·····················································12
General Safety Guidelines·························12
Safety Guidelines Specific to Jointer··········13
Electricals ···············································15
Minimum Circuit Size Required for Model
4275 Jointer ·············································15
Grounding ················································15
Electrical Wiring ·······································15
Setup······················································17
Shop Preparation······································17
Space Requirement ·········································17
Load Limits ······················································17
Electricals ························································17
Lighting····························································17
Safety Labels ···················································17
Dust Collection ················································17
Receiving··················································18
Moving Machine into the Shop·······················18
Unboxing ·························································18
Inventory·························································19
Removing Machine from Crate ·······················20
Cleaning ···················································20
Assembly ·················································21
Setup Control Panel ········································21
Inspect / Adjust Jointer Tables (Optional)·······22
Install Cutterhead Guard·································22
Leveling Machine······································23
Dust Collection ·········································23
Wiring and Grounding ······························24
Wiring Instructions··········································24
Controls and Components ······················ 25
Control Panel ···········································25
Infeed Table Height Adjustment Handwheel
and Depth Scale ·······································25
Infeed Table Depth Stop Knob ··················26
Outfeed Table Height Lever and Lock ········26
Fence ·······················································26
Digital Readout (DRO)·······························27
DRO Calibration········································27
Test Run···················································28
Operation ·············································· 29
Preparation ··············································29
Inspect Wood Grain··································30
Squaring Stock··········································30
Surface Planing·········································31
Edge Jointing ············································33
Beveling ···················································33
Rabbet Cutting ·········································34
Common Cutting Problems ·······················35
Snipe································································35
Chipping ··························································35
Fuzzy Grain······················································35
Accessories ············································ 36
460V Conversion Kit ·································36
Cutter Inserts ···········································36

Touchup Paint ··········································36
Power Feeder ···········································37
Maintenance ··········································38
Maintenance Schedule ·····························38
Inspect / Adjust Jointer Tables ··················39
Inspect Outfeed Table Height ·························39
Adjust Outfeed Table Height···························39
Inspect Outfeed Table Parallelism ··················39
Inspect Infeed Table········································40
Adjust Table Parallelism/Coplanarity ··············41
Infeed Table Adjustments ·······························43
Infeed Table Depth Stops Adjustments···········43
Cutterhead Maintenance ··························44
Rotate / Replace Cutter Inserts·······················44
Adjust Fence Positive Stops ······················45
Adjust Belt Tension···································46
Align Belt Pulleys······································47
Troubleshooting ·····································48
Wiring Diagram ····································· 51
For Stock # 4275.101.4S (230V, 1Ph)··········51
For Stock # 4275.102.4S (230/460V, 3Ph) ··52
Parts List················································ 53
Fence Assembly········································53
Table and Cutterhead Assembly················54
Base Assembly ·········································55
Motor and Cabinet ···································56
Maintenance Record······························ 57
Notes····················································· 66
Warranty and Service····························· 67
Appendix ··············································· 68
US Standard – Metric Conversion Chart·····68

6 | Page Oliver Machinery 4275 Jointer
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 the 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, or some instructions are not available, 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, right above the
electrical junction box. 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:
[e-mail]
We love to hear from our customers and make improvements.

4275 Jointer OLIVERMACHINERY.NET 7|Page
Specifications
Quick View
Model
4275 Jointer
Stock Number
4275.101.4S
4275.102.4S
Motor
Baldor TEFC Induction Motor
5HP, 230V, 1Ph
Baldor TEFC Induction Motor
7.5HP, 230/460V, 3Ph
Jointer Size
16”
Max. Depth of Cut (Jointing)
1/8"
Max. Depth of Cut (Rabbeting)
3/4”
Bevel Joining
0-45 Degrees
Dimensions
100”(L) x 42”(W) x 46”(H)
Footprint
52-1/2”(L) x 24-1/2”(W)
Fully Assembled Weight
1,099 lbs.
Warranty
1 Year (Motor and electronics)
2 Years (All other parts)
Product Dimensions
Jointer Fully Assembled and
Fence Fully Retracted
100”(L) x 42”(W) x 46”(H)
Footprint
52-1/2” (L) x 24-1/2”(W)
Fully Assembled Weight
1,099 lbs.
Shipment Info
Type
Wood Crate with Pallet Base
Content
Jointer with Included Accessories
Dimensions
103” (L) x 34”(W) x 52”(H)
Weight
1,136 lbs.
Approximate Setup Time
60 minutes
Must Ship Upright
YES
Stackable
NO
Electricals
Stock Number
4275.101.4S
4275.102.4S
Power Requirement
230V, 1Ph, 60Hz
230/460V, 3Ph, 60Hz
Full Load Current Rating
19.5A
16.8/8.4A
Recommended circuit size
30A
30A
Power Switch Type
Magnetic switch with overload protection.
Connection Type
Cord and plug not included.
Electrical hookups required.
Overload Protection
Equipped

8 | Page Oliver Machinery 4275 Jointer
Motor
Motor Type
Baldor TEFC Induction Motor
Horsepower
5HP
7.5HP
Speed
3600 RPM
3600 RPM
Efficiency
76%
88.5%
Power Factor
87
91
Power Transfer Mechanism
Poly V-belt and pulleys
Bearing type
Permanently sealed ball bearing
Jointer Capacity and Performance
Maximum Stock Width
16”
Maximum Depth of Cut for Jointing
1/8"
Maximum Depth of Cut for Rabbeting
3/4”
Minimum Stock Thickness
1/2”
Minimum Stock Length
12”
Fence
Dimensions
47” (L) x 6”(H)
Fence Stops
45 and 90 Degrees
Auxiliary Fence Dimensions
47” (L) x 1-1/8”(W) x 1/2"(H)
Material
Extruded aluminum
Cutterhead
Cutterhead Type
Helical
Cutterhead Diameter
3-55/64”
Cutterhead Speed
5500 RPM
Number of Cutter Inserts
76
Number of Rows of Cutter Inserts
4
Cutter Insert Type
Four-sided, indexable German made carbide
Cutter Insert Diameters
15mm x 15mm x 2.5mm
Cutter Blade Angle
30 degree
Cutter Insert Screw Tensioning Torque
52-60 lbs.-inch
Table
Table Dimensions
100”(L) x 16”(W)
Table Height Above Ground
34-3/4”
Table Lifting / Adjustment Mechanism
Parallelogram
Material
Precision ground cast iron

4275 Jointer OLIVERMACHINERY.NET 9|Page
Measurements
Measurement Units
Inch/mm
Measurement Devices
Wixey Digital Readout
Digital Readout Resolution
1/32” / 0.005” / 0.05mm
Digital Readout Accuracy
±1/500” / 0.002” / 0.05mm
Backup Measurement Device
Cutting depth scale with pointer.
Safety
Stock Number
4275.101.4S
4275.102.4S
Number of Dust Ports
1
Dust Port Size
6”
Minimum CFM Required
700 CFM
Sound Rating @ 2’ distance
90-95 dB
92-96 dB
Others
Serial Number Location
On the back of the machine.
Spare Parts Included
Ten cutter inserts and compatible Torx screws.
Certification
CSA 175370
Country of Origin
Taiwan

10 | Page Oliver Machinery 4275 Jointer
Identification

4275 Jointer OLIVERMACHINERY.NET 11 |Page

12 | Page Oliver Machinery 4275 Jointer
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 mean 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, or adjustments.
A machine under repair should be RED TAGGED to show it should not be used until the repair 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 operation, remove tie, rings, watch and other jewelry. Roll
up sleeves above elbows. Remove all loose outer clothing and confine long hair. Protective type
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 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, saw dust, oil and other
liquids increase the risk of tripping or slipping. Be sure to clean up the table before starting the
machine. Make certain the work area is well lighted and that a proper exhaust system is used to

4275 Jointer OLIVERMACHINERY.NET 13 |Page
minimize dust. Use anti-skid floor strips on the floor area where the operator normally stands and
mark off machine work area. Provide adequate work space 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. 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.
12. 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.
Safety Guidelines Specific to Jointer
Before Work Begin:
1. USE ONLY NATURAL, SOLID WOOD. Do not joint any material such as plywood, MDF, OSB, laminate
or anything that can disintegrate during operation. Do not joint treated lumber or anything that
contains harmful chemicals, as this will spread wood dusts that contain such harmful chemicals. Do
not attempt to joint workpiece with loose knots or with any other foreign materials.
2. CHECK CUTTER INSERTS:Make sure cutter inserts are sharp, clean, and free from damages. Forcing
dull/damaged cutter inserts to work invites accidents, and lowers the quality of the finish. Use
recommended amount of torque to securely fasten all inserts onto the cutterhead.
3. SERVICING CUTTER INSERTS: Wear heavy duty leather gloves to protect your hands when installing
new cutter inserts or rotating the existing ones. Ensure the cutterhead is thoroughly clean before
installing the insert. Debris between the cutter insert and the platform can create uneven pressure,
causing the insert to break, and body injuries may occur.
4. CHECK CUTTERHEAD GUARD:Make sure the cutterhead guard is installed and is properly tensioned.
The cutterhead guard should spring back and push against the fence, after it is rotated away and
released.
5. CHECK OUTFEED TABLE HEIGHT AND ALIGNMENT to avoid a workpiece getting stuck while feeding.
6. CHECK DEPTH OF CUT SETTING. Maximum depth of cut for each pass is 1/8”.
7. SUPPORT LONG WORKPIECE with auxiliary stock feeding rollers/tables. This will help avoiding
injuries and improve quality of finish.

14 | Page Oliver Machinery 4275 Jointer
When Jointing:
1. DUST COLLECTION SYSTEM is required for this jointer. Please make sure the system is on and provide
enough suction before operation begins.
2. KICKBACK happens when a workpiece is ejected at high speed during operation. Kickback projectiles
can cause serious injuries or even death. Sudden movement of workpiece from kickback can also
cause hands or other body parts getting pulled into the cutterhead. Operator should be cautious at
all times about possible kickback.
3. PROPER STOCK FEEDING reduces chance of kickback. NEVER start the machine with anything
engaging the cutterhead. NEVER start feeding until the jointer has reached its full speed. Use the right
amount of downward pressure and forward force for feeding.
4. INSPECT WORKPIECE. Ensure workpiece is free from nails, loose knots and another foreign material.
Use metal detector to scan for metal objects as appropriate.
5. NEVER join material shorter than 12”, thinner than 1/2”, or narrower than 2”.
6. NEVER rabbet material with width or thickness less than 3/4”, or shorter than 12”.
7. FOLLOW THE 3-INCH RULE. Always use push blocks when jointing materials less than 3” in thickness
or width. Keep your hands at least three inches away from cutterhead at all times when machine is
running.
8. CUPPED WORKPIECE should be jointed with the cupped side facing down. This prevents the
workpiece from rocking.
9. PAY ATTENTION TO GRAIN DIRECTION. Always cut WITH grain whenever possible. Jointing against
or across grain, or jointing end grain increase chance of tear out and kickback.
After Operation
1. STOP THE MACHINE if the operator leaves the machine for any reason.
2. WAIT until the machine comes to a complete stop.
3. CLEAN UP and LOCK POWER SWITCH before departure.

4275 Jointer OLIVERMACHINERY.NET 15 |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 4275 Jointer
Stock Number
Minimum Circuit Size Required
4275.101.4S
30A
4275.102.4S
30A
Please ensure the electrical circuit for this machine meets the minimum circuit size requirement.
Minimum circuit size requirement applies to a dedicated circuit which provides power to one 4275 Jointer.
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.
Electrical Wiring
This machine is not pre-wired with a cord and a plug. If you plan to connect the
machine directly to the electrical panel (“Hardwiring”). Please ensure there is a
readily accessible electrical disconnect near the machine. Refer to section
“Wiring Diagram” for wiring your machine to a power source.
If you choose to connect this machine with a plug and a cord, please use a
UL/CSA listed plug. If you need an extension cord to connect to the power
outlet, select a durable cord type with high temperature rating (90C° or above).
Both plug and power cord must be sized to meet the amperage requirement of
your machine.

16 | Page Oliver Machinery 4275 Jointer
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
> 100 feet
< 5
16
14
14
14
NR
5 to 8
14
14
14
12
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.
WARNING
Improper copper-aluminum wire connection is a fire hazard. If the power circuit
available uses aluminum wires, use certified CU/AL wire connectors.

4275 Jointer OLIVERMACHINERY.NET 17 |Page
Setup
Shop Preparation
Space Requirement
The dimensions of this machine are 100”(L) x
42(W). You will need additional spaces for
manipulating your workpiece, electrical
connection and dust collection.
Load Limits
This machine has a shipping weight of 1,136 lbs., and a net weight of 1,099 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
Ensure a properly sized circuit and an electrical terminal are available nearby the machine. If the machine
is to be hardwired, there must be a readily accessible power disconnect nearby, so that the machine can
be disconnected from power source for servicing and adjustments. If the machine is to be connected with
a cord and a plug, please ensure a matching outlet is installed nearby the machine.
Please refer to section “Electricals” in this manual 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 work place, display proper warning signs in highly
visible location(s).
Dust Collection
Wood dusts created by this jointer is a health hazard. Connect a dust collection system to this machine.
Check air suction regularly to ensure the pipes are not jammed.
Dust masks should be available for using the jointer.
CAUTION
Use a dust collection system that is rated above
700 CFM
. Doing so improves air
quality in the workplace, and protects the machine from jamming.
Piping of dust collection system introduces additional air resistance, and decreases
the effective CFM m
easured at the dust ports. Ensure there is significant suction at
the dust port, so
dust and debris can be effectively removed from the machine.

18 | Page Oliver Machinery 4275 Jointer
Receiving
Your shipment should come with one wood crate. Upon receiving your shipment, check for any significant
damages before signing the delivery confirmation.
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
4275 Jointer has a gross weight of 1,136 lbs. and a net weight of 1,099 lbs.
Safe moving techniques and proper lifting equipment required, or serious personal
injury may occur.
WARNING
Your shipment 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.
Always wear safety goggles and gloves when removing straps, as they may spring
back violently when released and cause injury.
Unboxing
Upon removing the crate cover, you should find a jointer that is mostly assembled, and two paper boxes
that contain all loose parts and accessories. Everything is covered by a plastic bag.
IMPORTANT If items are damaged, please call us immediately at 1-800-559-5065

4275 Jointer OLIVERMACHINERY.NET 19 |Page
Inventory
Carefully unwrap the packaging and make sure all components are included in the shipment. Lay out all
items received and inventory them.
Item
Description
Quantity
1
T-Handle Torx drivers (T-25)
2
2
Spare Cutter Inserts and Torx Screws
10 each
3
12/14 mm Combination Wrench
1
4
Metric hex wrench set (5,6,8 mm)
1 each
5
Push blocks
2
6
Cutterhead guard
1
NOTICE: If you cannot find the item in the list above, please check if they are still attached to the packaging
or inside the cabinet. Occasionally the item may have been pre-installed at the factory. Please refer to the
parts list section in this manual to ensure you have all the components to set up this machine.
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 Recommended for Machine Setup
Item
Purpose
Safety Glasses
Protection
Disposable Gloves
Protection
Paper Towel / Rags
Cleaning
Rust Inhibitor
Cast iron rust protection.
Straight edge
Check alignments.
Metric Combination
Wrench Set
Assembly and Maintenance
Metric Hex Wrench Set
Assembly and Maintenance
Torque Wrench
Cutter inserts installation and for checking Torx screw tension (52-60 lbs.-
inch).
T25 Star Bit Socket
Cutter inserts installation.
Ring Terminal Connector
and Crimping Tool
Connecting machine to power.
IMPORTANT: Always follow local electrical code for electrical work.

20 | Page Oliver Machinery 4275 Jointer
Removing Machine from Crate
When all items are ready for machine setup, attach lifting sling to the lifting hooks located at the two
corners of the cabinet. Gently lift machine up from the pallet and move to its final location.
WARNING
4275 Jointer has a net weight of 1,099 lbs. All lifting devices must be capable to
handle the load, or serious personal injury and machine damage may occur.
Cleaning
To prevent rusting, the cast iron jointer tables are covered with machine oil and plastic film. Remove the
plastic film, then wipe off the machine oil with paper towels or rags.
Once all the machine oil is removed, routinely coat the unpainted cast iron surface with rust preventive
such as Boeshield® T-9 or paste wax. Do not use rust preventives that contains silicon, which is known to
interfere with certain finishes and glues.