Oliver 4620 User manual

4620 14” Bandsaw
Owner’s Manual
Oliver Machinery M-4620 1/2021
Seattle, WA Copyright 2003
[e-mail] www.olivermachinery.net

SAFETY RULES
WARNING: FAILURE TO FOLLOW THESE RULES MAY RESULT IN
SERIOUS PERSONAL INJURY.
1. FOR YOUR OWN SAFETY, READ INSTRUCTION MANUAL BEFORE
OPERATING THE TOOL. Learn the tool’s application and limitations as well
as the specific hazards peculiar to it.
2. KEEP GUARDS IN PLACE and in working order.
3. ALWAYS WEAR EYE PROTECTION. Wear safety glasses. Everyday
eyeglasses only have impact resistant lenses; they are not safety glasses.
Also use face or dust mask if cutting operation is dusty. These safety glasses
must conform to ANSI Z87.1 requirements.
Note: Approved glasses have Z87 printed or stamped on them.
4. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are removed from tool before turning it
on.
5. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
6. DON’T USE IN DANGEROUS ENVIRONMENT.Don’t use power tools in
damp or wet locations, or expose them to rain. Keep work area well lighted.
7. KEEP CHILDERN AWAY. All visitors should be kept safe distance from work
area.
8. MAKE WORKSHOP KID PROOF with padlocks, master switches, or by
removing starter keys.
9. DON’T FORCE TOOL it will do the job better and safer at the rate for which it
was not designed.
10. USE THE RIGHT TOOL. Don’t force a tool or attachment to do a job for
which it was not designed.

11. USE PROPER EXTENSION CORD. Make sure your extension cord is in
good condition. When using an extension cord, be sure to use one heavy
enough to carry the current your product will draw. An undersized cord will
cause a drop in line voltage resulting in loss of power and overheating. Table
1 shows the correct size to use depending on cord length and nameplate
ampere rating. If in doubt, use the next heavier gage. The smaller the gage
number, the heavier the cord.
12. WEAR PROPER APPAREL Do not wear loose clothing, gloves, neckties,
rings, bracelets, or other jewelry which may get caught in moving parts.
Nonslip footwear is recommended. Wear protective hair covering to contain
long hair.
13. ALWAYS USE SAFETY GLASSES. Also use face or dust mask if cutting
operation is dusty. Everyday eyeglasses only have impact resistant lenses,
they are NOT safety glasses.
14. SECURE WORK. Use clamps or a vise to hold work when practical. It’s safer
than using your hand and it frees both hands to operate tool.
15. DON’T OVERREACH. Keep proper footing and balance at all times.
16. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and
safest performance. Follow instructions for lubricating and changing
accessories.
17. DISCONNECT TOOLS before servicing; when changing accessories, such
as blades, bits, cutters, and the like.
18. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is
in off position before plugging in.
19. USE RECOMMENDED ACCESSORIES. Consult the owner’s manual for
recommended accessories. The use of improper accessories may cause risk
of injury or persons.
20. NEVER STAND ON TOOL Serious injury could occur if the tool is tipped or if
the cutting tool is unintentionally contacted.

21. CHECK DAMAGED PARTS. Before further use of the tool, 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. Aguard or other part that is
damaged should be properly repaired or replaced.
22. DIRECTION OF FEED. Feed work into a blade or cutter against the direction
of rotation of the blade or cutter only.
23. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF.
Don’t leave tool until it comes to a complete stop.
24. MAKE SURE TOOL IS DISCONNECTED from power supply while motor is
being mounted, connected or reconnected.
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

SAVE THESE INSTRUCTIONS
ADDITIONAL SAFETY RULES FOR BAND SAWS
1. If you are not thoroughly familiar with the operation of band saws, obtain
advice from your supervisor, instructor or other qualified person.
2. Follow all wiring codes and recommended electrical connections. Make
certain that the tool is properly grounded.
3. Make all adjustments with the power “OFF”
4. Always maintain proper adjustment of blade tension, blade guides, and blade
support bearings.
5. Avoid awkward hand positions. A sudden slip could allow the hand to contact
the blade.
6. Do not attempt to saw stock that does not have a flat surface, unless a
suitable support is used.
7. Make sure blade is not contacting the workpiece before turning on the power
switch.
8. Always keep hands and fingers away from the blade when the machine is
running.
9. Hold workpiece firmly against table and feed into blade at a moderate speed.
10. Made sure that the saw blade teeth point downward toward the table.
11. Adjust upper guide to just clear work piece.
12. Disconnect machine from the power source when making repairs.
13. Replace all guards after servicing.
14. Turn off band saw if the material is to be backed out of an uncompleted cut.

15. Make relief cuts before cutting long curves.
16. Do not cut material that is too small to be safely supported.
17. Support long heavy work from the floor.
18. Before leaving the machine, make sure the work area is clean.
19. Important: When the tool is not in use , the switch should be in the “OFF”
position and the power cord disconnected.
20. Do not remove jammed cutoff pieces until blade has stopped.
ON-OFF SWITCH PADLOCK – Tosafeguard the band saw from unauthorized
operation and to avoid accidental starting by children or other not qualified to
use, the use of padlock is required. Tolock out the on – off switch, open the
padlock, insert through the hole of the switch on button and close the padlock.
Place the key in a location that is inaccessible to children and other not qualified
to use the tool.

GROUNDING INSTRUCTIONS
All grounded, cord-connected tools:
•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. If repair or replacement of the electric cord or plug is necessary,
do not connect the equipment-grounding conductor to a live terminal.
•Check with a qualified electrician or service personnel if the grounding
instructions are not completely understood, or if in doubt as to whether the
tool is properly grounded.
•Use only 3-wire extension cords that have 3-prong grounding plugs and
pole receptacles that accept the tool’s plug.
•Repair or replace damaged or worn cord immediately.

WARNING PLATES
This machine has warning symbols attached on it as shown below to ensure
proper and safe operation.
These symbols are used on the machine to indicate points or instances of
specific danger to operating personnel.
Make sure to memorize these symbols and bring them to the attention of others
as and when necessary. Do not remove safety symbols from the machine.

A. Quick Release Tension Handle
B. Door Knob
C. Handwheel
D. Ball Bearing Guide Support
E. Blade
F. Fence
G. Working Table
H. Switch
A
F
B
C
D
E
G
H

FEATURES
Motor – 2HP,Single Phase 110/220 Volts. (Pre-wired 110V Plug)
Motor Speed – 3450 RPM.
Motor Switch – ON/OFF SWITCH.
Blade Speed – 1,480, 2,300 & 3,260 FPM.
Fully Balanced Cast Iron Wheels.
Table Size – 16” X 20” .
Table Material – Precision Ground Cast Iron.
Table Height – 37”
Table Tilts – 45° left, 10° right.
Throat – 13 1/2”
Cutting Height – 13” rack & pinion adjustment.
Blade Size – 1/4” – 1” 2890mm(113 3/4”) long.
Miter Gauge – ‘T’ Slot, Included.
Overall Height – 76”
Gross Weight – 304 lbs.

INSTALLAITON
SAFETY RULES FOR MACHINE LIFTING
1. Pay special attention to the balance of the machine while lifting.
2. Use a forklift with sufficient loading capacity to lift the machine.
3. Have another person help guide the way when lifting the machine.
4. The forks of forklift must protrude from under the machine underside.
5. The forklift must only be driven by an experienced forklift driver.
This is a heavy machine. Serious personal injury may occur if safe moving ethods are not used. To be
safe, get assistance and use power equipment to move the shipping crate and remove the machine from
the crate.
Although not required, we recommend that you mount your new machine to the floor.
Because this is an optional step and floor materials may vary, floor mounting hardware is not
included. Generally, you can either bolt your machine to the floor or mount it on machine
mounts. Both options are described below. Whichever option you choose, it is necessary to
level your machine with a precision level.
SELECTION OF LOCATION
Requirement of operating environment the operating temperature for this machine should be
between +5℃and +40℃,while the relative humidity should not exceed 50% at a maximum
temperature of +40℃.
Improper environment will affect the machine’s safe operation, avoid the following working
area:
Avoid placing in area where the machine will rock or be uneven, thus preventing the machine
from falling or turning over. This will prevent injuries and undue wear on the machine.
Avoid placing in places where vibration may occur. Install the machine at the anticipated
place.
Whether there is any dust on the sliding surface or any defect. Clean it first to avoid setting off
sparks or causing an electrical shock.
Space allocation
Consider the largest size of workpiece that will be processed through this machine and
provide enough space around the machine for adequate operator material handing or the
installation of auxiliary equipment. With permanent installations, leave enough space around

the machine to open or remove doors/covers as required by the maintenance and service
described in this manual.
Electrical Installation
Place this machine near an existing power source. Make sure all power cords are protected
from traffic, material handling, moisture, chemicals, or other hazards. Make sure to leave
assess to a means of disconnection the power source or engaging a lockout/tagout device.
Lighting
Lighting around the machine must be adequate enough that operations can be performed
safely. Shadows, glare, or strobe effects that may distract or impede the operator must be
eliminated.
TRANSPORTATION
Carefully check over the machine whether it is damaged during transportation.
While moving the machine, be sure to note its weight distribution as well as its balance.
If the machine is damaged while being moved, please contact the manufacturer immediately.
The lifting of the machine is as easy as follows:
The machine can be lifted by a forklift.
Their forks should insert through the machine bottom.
Attention should be paid to the balance of the machine while lifting.

POWER SUPPLY REQUIREMENT
Insufficient voltage from factory power source may affect the power output of the motor and
the function of the controller.
It is important to connect this machine to the correct voltage in the factory power source.
Use only an independent power source.

ADJUSTMENT
TABLE ASSEMBLY
1. Place table bracket on the
bandsaw so that the two bracket
pins can go into the holes on the
support.
2. Secure table bracket to
bandsaw body using the two hex
head bolt and flat washers(Fig.1)
3. Set table on bracket, insert
screw into bracket and secure with
knob
ADJUSTING TO 90° TABLE STOP
1. Disconnect the machine from the power source.
2. Loosen the lock knobs (A) as
illustrated in (Fig.) tilt the
table towards the left until it
rests against the table stop
bolt.(Fig.,B)
3. Use a square, place on the
table against the blade. This
will allow you to verify the 90
degree to the table.
4. Turn table stop bolt to get the
90-degree angle; tighten
thelock knobs once completed. AB

TILTING THE TABLE
The bandsaw table tilts up 45°
to the right or up to 10° to the
left. TO tilt the table(Fig.)
1. Loosen knob under the
table(Fig. A)&(Fig.,C).
2. Tilt table the desired angle
of degree, gauge under the
table.
3. Re-tighten knob. C

Quick release / blade tensioning
Lifting the quick release handle to release blade tension.
Remove blade and replace with new one. Turn down
the handle to tighten blade.
Turn the handle clockwise to minor tighten blade
tension and counterclockwise to release blade tension.
A blade under tension may also pull drive wheel out of
alignment. Adjust alignment of drive wheel with
tracking knob.
Adjusting upper blade support
The blade support bearing (A) should be adjusted so it almost touches the back of the saw blade when
the blade is tracking properly. To adjust, loosen
indexable locking lever (B) and slide bracket in or out
until the adjustment is correct. Tighten lever. The
blade guide bearing (C) should be adjusted so they
almost touch the slide of the blade. The front edge of
the guide bearings must be positioned just behind the
“gullets” of the saw teeth. To adjust, loosen indexable
locking lever (D) and slide bearing assembly in or out
until the adjustment is correct. Tighten lever. Replace
blade guard.

Adjusting lower blade support bearing
The lower bearing adjustments are similar to the
upper bearing adjustments. The blade support
bearing (A) should be adjusted so it almost touches
the back of the saw blade. To adjust, loosen hex
screw (B) and slide bracket in or out until the
adjustment is correct. Tighten screw. The blade
guide bearings (C) should be adjusted so they
almost touch the sides of the blade. To adjust,
loosen hex screw (D) and slide bearing assembly in
or out until the adjustment is correct. Tighten hex
screw.

FENCE ASSEMBLY
1. 5.
2. 6.
3. 7.
4. 8.

9. 13.
10. 14.
11. 15.
12.

FENCE ADJUSTMENT
TABLE
90 ﾟ
Shaft for 90°
ADJUSTING SCREW