Harbor Freight Tools Saw Mill with 280cc Gas Engine Product manual
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual
near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and
the receipt in a safe and dry place for future reference.
280cc
Saw Mill
Using an engine indoors
CAN KILL YOU IN MINUTES.
Engine exhaust contains carbon monoxide.
This is a poison you cannot see or smell.
NEVER use inside
a home or garage,
EVEN IF doors and
windows are open.
When unpacking, make sure that the product is intact and undamaged.
If any engine parts are missing or broken,
please call 1-800-520-0882 (engine parts) or
1-800-444-3353 (other parts) as soon as possible.
Copyright© 2013 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Only use OUTSIDE
and far away from
windows, doors,
and vents.
Visit our website at: http://www.harborfreight.com
Email our technical support at: tech@harborfreight.com
or engine technical support at: predator@harborfreight.com
ITEM 61712
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Table of Contents
Safety ......................................................... 3
Specications ............................................. 6
Assembly .................................................... 6
SAFETY OPERATION MAINTENANCEASSEMBLY
Operation ................................................... 10
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Maintenance .............................................. 12
Parts List and Diagrams ............................ 14
Warranty .................................................... 19
WARNING SYMBOLS AND DEFINITIONS
Obey all safety messages that follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
Page 2 For technical questions, please call 1-800-520-0882. ITEM 61712
IMPORTANT SAFETY INFORMATION
WARNING! Read all instructions.
Failure to follow all instructions listed below may result in re, serious injury and/or DEATH.
The warnings and precautions discussed in this manual cannot cover all possible conditions and
situations that may occur. It must be understood by the operator that common sense and caution
are factors which cannot be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS
Set Up Precautions
SAFETYOPERATIONMAINTENANCE ASSEMBLY
1. Gasoline fuel and fumes are ammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel
or other ammable materials nearby.
2. Have multiple ABC class re extinguishers nearby.
3. Operation of this equipment may create sparks that
can start res around dry vegetation.
A spark arrestor may be required.
The operator should contact local re
Engine Precautions
Follow engine precautions and instructions in
the included engine instruction manual.
Operating Precautions
1. CARBON MONOXIDE HAZARD
Using an engine indoors CAN KILL
YOU IN MINUTES.
Engine exhaust contains carbon
monoxide. This is a poison you cannot
see or smell.
agencies for laws or regulations relating
to re prevention requirements.
4. Set up and use only on a at, level,
well-ventilated surface.
5. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.
6. Use only lubricants and fuel recommended
in the engine manual or in the
Specications chart of this manual.
2. Keep children away from the equipment,
especially while it is operating.
3. Do not leave the equipment unattended when it is
running. Turn off the equipment (and remove safety
keys, if available) before leaving the work area.
NEVER use inside a home or garage,
EVEN IF doors and windows are open.
Only use OUTSIDE and far away from windows,
doors, and vents.
4. Wear ANSI-approved safety glasses, hearing
protection, and NIOSH-approved dust mask/
respirator under a full face shield during use.
5. Wear heavy-duty work gloves
when handling the blade.
6. People with pacemakers should consult their
physician(s) before use. Electromagnetic
elds in close proximity to a heart pacemaker
could cause pacemaker interference or
pacemaker failure. Caution is necessary when
near the engine's magneto or recoil starter.
7. Use only accessories that are recommended
by Harbor Freight Tools for your model.
Accessories that may be suitable for one
piece of equipment may become hazardous
when used on another piece of equipment.
Page 3For technical questions, please call 1-800-520-0882.ITEM 61712
8. Do not operate in explosive atmospheres,
such as in the presence of ammable
liquids, gases, or dust. Gasoline-powered
engines may ignite the dust or fumes.
9. Stay alert, watch what you are doing and
SAFETY OPERATION MAINTENANCEASSEMBLY
use common sense when operating this
piece of equipment. Do not use this piece of
equipment while tired or under the inuence
of drugs, alcohol or medication.
10. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the equipment in unexpected situations.
11. Dress properly. Do not wear loose clothing
or jewelry. Keep hair, clothing and gloves away
from moving parts. Loose clothes, jewelry or
long hair can be caught in moving parts.
18. WARNING: Some dust created by power sanding,
sawing, grinding, drilling, and other construction
activities, contains 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 and cement or
other masonry products
• Arsenic and chromium from
chemically treated lumber
Your risk from these exposures varies, depending
on how often you do this type of work. To reduce
your exposure to these chemicals: work in a well
ventilated area, and work with approved safety
equipment, such as those dust masks that are
specially designed to lter out microscopic particles.
(California Health & Safety Code § 25249.5, et seq.)
12. Parts, especially exhaust system components,
get very hot during use. Stay clear of hot parts.
13. Do not cover the engine or
equipment during operation.
14. Keep the equipment, engine, and
surrounding area clean at all times.
15. Use the equipment, accessories, etc., in accordance
with these instructions and in the manner intended for
the particular type of equipment, taking into account
the working conditions and the work to be performed.
Use of the equipment for operations different from
those intended could result in a hazardous situation.
16. Do not operate the equipment with known
leaks in the engine's fuel system.
17. WARNING: The brass components of
this product contain lead, a chemical
known to the State of California to cause
birth defects (or other reproductive harm).
(California Health & Safety code § 25249.5, et seq.)
19. This product contains or, when used, produces a
chemical known to the State of California to cause
cancer and birth defects or other reproductive harm.
(California Health & Safety Code § 25249.5, et seq.)
20. When spills of fuel or oil occur, they must be
cleaned up immediately. Dispose of uids and
cleaning materials as per any local, state, or
federal codes and regulations. Store oil rags in
a bottom-ventilated, covered, metal container.
21. Keep hands and feet away from moving parts.
Do not reach over or across
equipment while operating.
22. Before use, check for misalignment or binding
of moving parts, breakage of parts, and any
other condition that may affect the equipment's
operation. If damaged, have the equipment
serviced before using. Many accidents are
caused by poorly maintained equipment.
23. Use the correct equipment for the application.
Do not modify the equipment and do not use the
equipment for a purpose for which it is not intended.
Page 4 For technical questions, please call 1-800-520-0882. ITEM 61712
Service Precautions
1. Before service, maintenance, or cleaning:
a. Turn the engine switch to its “OFF” position.
b. Allow the engine to completely cool.
c. Then, remove the spark plug wire(s)
from the spark plug(s).
2. Keep all safety guards in place and in
proper working order. Safety guards include
mufer, air cleaner, mechanical guards,
and heat shields, among other guards.
3. Do not alter or adjust any part of the
equipment or its engine that is sealed by the
manufacturer or distributor. Only a qualied
service technician may adjust parts that may
increase or decrease governed engine speed.
4. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during service.
5. Maintain labels and nameplates on the equipment.
These carry important information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
6. Have the equipment serviced by a qualied repair
person using only identical replacement parts.
This will ensure that the safety of the equipment
is maintained. Do not attempt any service or
maintenance procedures not explained in this
manual or any procedures that you are uncertain
about your ability to perform safely or correctly.
7. Store equipment out of the reach of children.
8. Follow scheduled engine and
equipment maintenance.
9. Refueling:
a. Do not smoke, or allow sparks, ames,
or other sources of ignition around the
equipment, especially when refuelling.
b. Do not rell the fuel tank while the
engine is running or hot.
c. Do not ll fuel tank to the top. Leave a little
room for the fuel to expand as needed.
d. Refuel in a well-ventilated area only.
SAFETYOPERATIONMAINTENANCE ASSEMBLY
SAVE THESE INSTRUCTIONS.
Page 5For technical questions, please call 1-800-520-0882.ITEM 61712
Specications
Log Diameter 20″ Maximum
Board Width 20″ Maximum
Cutting Thickness 4-1/2″ Maximum
Cutting Length 9′-2″ Maximum (110″)
Note: Engine specications are found in the
engine manual supplied with this equipment.
SAFETY OPERATION MAINTENANCEASSEMBLY
Fuel
Type
Capacity 1 Gallon
Coolant Tank Capacity 4.2 Quarts
Blade Speed 3,279 FPM
87+ octane unleaded
gasoline
Assembly
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.
TO PREVENT SERIOUS INJURY:
Operate only with proper spark arrestor installed. Operation of this equipment may create sparks that can
start res around dry vegetation. A spark arrestor may be required.
The operator should contact local re agencies for laws or
regulations relating to re prevention requirements.
TO PREVENT SERIOUS INJURY: The Saw Mill is dangerous when assembled incorrectly.
If you do not feel completely comfortable assembling it, then have a qualied technician assemble it.
Note: For additional information regarding
the parts listed, refer to Assembly Diagram
near the end of this manual.
1. Secure Wheels (1) onto Right Wheel Frame (7a)
with two Hex Bolts M20x100 (6) and Hex Nuts
M20 (2). Attach Right Wheel Frame, Round
Post (20) and the Round Clamp (10) with two
Hex Bolts M12x80 (8) and Hex Nuts M12 (9).
Note: Do not tighten Bolts (8) and Nuts (9).
20
8, 9
6, 2
1
10
7a
Figure A: Right Wheel Frame
with two Hex Bolts (58) and Hex Nuts (5).
Note: Do not tighten Bolts (58) and Nuts (5).
58, 5
3a
48
4
6, 2
1
Figure B: Left Wheel Frame
3. Slide the Round Post (20) into the Blade Guard (50),
as shown below. Adjust the bolts until Blade Guard
2. Secure Wheels (1) onto Left Wheel Frame (3a)
with two Hex Bolts M20x100 (6) and Hex
Nuts M20 (2). Then attach Left Wheel Frame,
Square Post (48) and Square Clamp (4)
Page 6 For technical questions, please call 1-800-520-0882. ITEM 61712
can move smoothly on the round post. Then secure
it in place with the Right Lock Handle (59).
6. Use the Bolts (22) and Nuts (25) to fasten the End
Stops (79) to the Track Sections, as shown below.
Round Post (20)
Blade
Guard
(50)
Right
Lock
Handle
(59)
Figure C: Right Lock Handle
4. Slide the Square Post (48) into the Blade Guard,
as shown below. Adjust the bolts until it can
move smoothly on the square post. Then secure
it in place with the Left Lock Handle (54).
7. Use the Flange Bolts (77) and Flange
Nuts (84) to fasten the Center Support (90a)
and Middle Supports (81a) to the Track
Sections (78, 92), as shown below.
NOTE: The Track (78) and Track (92) must be aligned
not only on the top surface, but also on the side surface.
The gap between these two parts must be small.
If the top surface of the Tracks are not aligned, use
a grinder or le (not included) to smooth them out.
8. Install the Rocker Tube (88) and Round
Tube (85) assembly as shown below.
78
84
83
77
85
86a
87
88
89
SAFETYOPERATIONMAINTENANCE ASSEMBLY
Left Lock
Handle (54)
Square
Blade
Guard (50)
Post
(48)
Figure D: Left Lock Handle
NOTE: After assembly, the central distance
5. Lay out the Track sections (78, 92) as shown below.
of the Track must be 30.315″ + 0.04″
90a
81a
78
92
Figure F: Rocker Tube
9. Place the carriage onto the track.
Saw mill
starts cut from
this end.
92
80a
77
Saw mill
nishes cut
at this end.
25
22
79
82
92
78
91
Figure E: Track Assembly
Page 7For technical questions, please call 1-800-520-0882.ITEM 61712
10. Place the Top Frame (23) on the Posts (20, 48).
SAFETY OPERATION MAINTENANCEASSEMBLY
Figure G: Top Frame
11. Secure the two Bolts (22) attaching
the Top Frame (23) to the
Round Post (20) as shown below.
15. Thread the Cable Anchor Bolts (46) into
the Blade Guard (50) as shown below.
Figure K: Cable Anchor Bolt Locations
16. Route Cables as shown below.
Hook the loops around the two posts on the
back of the External Tube (34). The lower cable
attaches to the lower post. Adjust the Cable
Anchor Bolts (46) until the two cables are equal.
Figure H: Top Frame Bolts
12. Attach the Top Frame (23) to the
Square Post (48) using the Bolts (49) and
Top Frame Brace (101) as shown below.
Figure I: Top Frame Bolts 2
13. Tighten the Bolts (8,58) and Nuts (5,9).
14. Attach the External Tube (34) and the Water Tank
Tray (45) to the Top Frame (23) using the Bolts (44),
Spring Washer (98), and Nut (99), as shown below.
34
44
98
99
Figure L: Cable Route
17. Loosen the Bolt (70) and the Fixed Block (71) to
move the Fixed Block away from the Blade. Rotate
the Tension Handle (14) in a clockwise direction
to properly tension the Blade, as shown below.
Figure M: Tension Handle
NOTE: Pull up on Blade at Center Guard.
Allow for no more than 1/4″ - 1/2″
movement up or down (“give”) on the Blade.
The 1/4″ - 1/2″ give indicates proper Blade tension.
45
23
Page 8 For technical questions, please call 1-800-520-0882. ITEM 61712
Figure J: Water Tank Tray and External Tube
18. Slide Fixed Block until it gently touches the Blade.
Then tighten the Bolt, fastening it in place.
See below. Repeat for the remaining Fixed
Blocks until there is 0.02″-0.04″ clearance
between Fixed Blocks and Blade.
Fixed Block (71) Bolt (70)
Figure N: Fixed Block and Manual Rotation
19. Rotate the Bandwheel (66) slowly
counterclockwise, watching relative position of
the Blade (69) and the Bandwheels (66).
20. If the Blade stays centered on the wheels, tighten
the lock nuts shown on Figure O. If the Blade
does not stay centered, adjust the bolts shown
on Figure O slightly and then rotate the belt
wheel again. See instructions that follow.
E
C
A
G
B
Refer to Figure O for the following instructions:
BEFORE any adjustment, loosen Bolts
E and F and Nuts C and D.
If after replacement Blade starts to shift back
towards operator, loosen Nut A and hold Bolt G with
a wrench. Then tighten Nut A after adjustment.
If the Blade shifts back from the operator,
loosen Nut B and hold Bolt G with a wrench.
Then tighten Nut B after Blade adjustment.
Continue making small adjustments until
Blade stays centered, AFTER any adjustment,
tighten Bolts E and F and Nuts C and D.
21. Install Throttle Control (93) on Pushing
Handle (94) as shown below.
Figure P: Throttle Control
22. Lubricate the Round Post (20) and the
Square Post (48) with lithium grease to
allow the sawhead to move smoothly.
23. Install the Water Tank (95) into
the Water Tank Tray (45).
SAFETYOPERATIONMAINTENANCE ASSEMBLY
D
F
adjusting boltadjusting lock nut
Figure O: Adjustment Bolts
NOTE: Adjust Blade again after replacement.
24. Route the Water Tube (97) through the bracket on the
lower right of the Blade Guard (50) Secure in place
with the tip facing the blade using the water tube
holding bolt shown below, but do not overtighten.
Blade
Guard
Water
Tube (97)
(50)
lower
right
bracket
Water Tube
Holding
Bolt
Figure Q: Water Tube
25. For horizontal Blade adjustment, loosen the Nut (47)
and adjust the left and right Lock Handles (54,59)
until the distance between the ends of the Blade and
the top of the Middle Support (81a) are the same.
NOTE: Use a tape measure to verify distances match.
Page 9For technical questions, please call 1-800-520-0882.ITEM 61712
Operating Instructions
Read the ENTIRE IMPORTANT
SAFETY INFORMATION section at the
SAFETY OPERATION MAINTENANCEASSEMBLY
beginning of this manual including
Engine Operation
Inspect engine and equipment looking
for damaged, loose, and missing
parts before set up and starting.
If any problems are found, do not use
equipment until xed properly.
Start Procedure
Before starting the engine:
a. Follow the Set Up Instructions to
prepare the equipment. Follow all
Equipment Operation
1. Wear heavy-duty work gloves, ANSI-approved
goggles behind a full face shield, steel-toed
work boots, and a dust mask.
2. Operate only with assistance.
3. Fill the Water Tank with clean water.
4. The maximum log diameter that can be cut is 20″.
The maximum board width that can be cut is 20″.
The lumber must be at least 3′ 8″ long and
must rest on at least two Supports (81a, 90a)
to prevent instability.
5. Cut branches off the lumber to be
processed before milling.
all text under subheadings therein
before set up or use of this product.
instructions in the separate engine
manual provided with the engine.
b. Inspect the equipment and engine.
c. Fill the engine with the proper
amount and type of fuel and oil.
d. Read the Equipment Operation
section that follows.
1. Start and operate the engine according
to the provided engine manual.
2. Replacement engine operating instructions can
be obtained from the engine manufacturer.
7. Choose the Short Log Supports (91) or the Long Log
Supports (82) according to the lumber diameter.
8. Place the lumber to be cut on the Supports.
See picture below. Brace the lumber against
the Log Supports (82, 91) to prevent movement
during milling. The lumber should be positioned so
that the force of cutting holds it against the supports.
Clamp
Lumber
Here
Lumber on
Supports
6. WARNING! To prevent death and
serious injury. Do not cut lumber containing
foreign objects (nails, metal, etc.).
Figure R: Lumber Position
9. Clamp the lumber in place against the Log
Supports (82, 91) using the Log Clamp (89) in
the location shown above. Position the Log
Clamp is below the level of the blade.
10. Tighten all Bolts and T-Handles on the Log
Clamp (89) and the Log Supports (82, 91). Verify
that they are securely in place before proceeding.
Page 10 For technical questions, please call 1-800-520-0882. ITEM 61712
11. Align the Blade with the top of the lumber, loosen the
Scale Knob and adjust the Scale Pointer to point at
0″ on the Scale. Tighten the Scale Pointer Knob.
Scale
Pointer
14. WARNING! The operator and any assistants
must stay clear of the front and back of the
blade whenever the engine is running.
15. Start and operate the engine according
to the provided engine manual.
16. Adjust the Throttle to bring the Blade
up to speed. The Locking Ring can be
turned to lock the Throttle in place.
Height
Adjustment
Handle (30)
Scale
Pointer
Knob
Scale
Figure S: Scale and Scale Pointer
12. Release both Lock Handles (54, 59). Turn the Height
Adjustment Handle (30) and adjust the cutting
height until the Scale Pointer points to the desired
thickness. Engage both Lock Handles (54, 59).
13. The cut direction must be as shown below. If the
log is cut from the other direction, the saw blade
will push the lumber away from the supports and
may cause the lumber to become unstable.
Start
of cut
CUTTING DIRECTION
Locking Ring
Throttle Lever
Figure U: Throttle Control
17. Throttle speed may need to be increased
when the Saw is under load.
18. Move the Saw Head slowly along the track
and against the lumber to make the cut.
NOTE: Repeated adjustments will need
to be made during cutting.
19. Shut off engine if blade binds, breaks,
or another problem is suspected.
Do not try to back the blade out of an
incomplete but while engine is running.
SAFETYOPERATIONMAINTENANCE ASSEMBLY
Figure T: Direction of Cut
End
of cut
20. Trim off the rounded sides of the lumber.
21. After the lumber is squared-off,
boards or posts can be cut.
22. To prevent accidents, turn off the engine and
disconnect its spark plug wire after use. Wait for the
engine to cool, clean external parts with clean cloth,
then store the equipment out of children's reach
according to the Storage instructions in this manual.
Page 11For technical questions, please call 1-800-520-0882.ITEM 61712
Servicing
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
SAFETY OPERATION MAINTENANCEASSEMBLY
Turn the Power Switch of the equipment to its “OFF” position, wait for the engine to cool, and disconnect
the spark plug wire(s) before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or excess
smoking occurs, have the problem corrected before further use.
Maintenance Procedures
Many maintenance procedures, including those not detailed in this manual, will need to be
performed by a qualied technician for safety. If you have any doubts about your ability to safely
service the equipment or engine, have a qualied technician service the equipment instead.
Note: These procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the engine and equipment.
Engine Maintenance and Service
Follow the instructions found in the
included engine manual.
Storage
1. Wait for engine to cool, then clean
equipment with clean cloth.
2. Clean the engine and/or prepare it for storage
according to engine manual instructions.
3. Apply a thin coat of rust preventive
oil to all uncoated metal parts.
Equipment Lubrication
1. Lubricate the Bandwheel Axles and Square and
Round Posts with machine oil before each use.
2. Lubricate the Tension Handle with grease monthly.
4. Cover and store in a dry, well-ventilated
area out of reach of children.
5. For cold weather operation, store the
equipment in a cool dry area to prevent
condensation and premature wear.
Page 12 For technical questions, please call 1-800-520-0882. ITEM 61712
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