Iron & Oak BHH2003 Instruction Manual

Owner / Operator
and Safety Manual
See
initial start-up
instructions on page one
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Horizontal
Log Splitter
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Initial Start-up Instructions
❏❏Read all assembly, operating, and safety instructions.
❏❏Complete and return the warranty card to register your log splitter.
❏❏Write the serial number and date-of-purchase in this manual.
❏❏Assemble the log splitter.
❏❏Make sure the oil filter is properly installed. (See “Assembly Proce-
dure” section.)
❏❏Fill the hydraulic tank with the recommended type and quantity of oil.
(See “Start-Up Procedure” section.)
❏❏Fill the engine crankcase with the manufacturer’s recommended type
and quantity of oil. (See “Start-Up Procedure” section.)
❏❏Fill the engine fuel tank with fresh, clean, lead-free gasoline. (Do not
mix oil with gasoline.)
❏❏Bleed the air out of the cylinder before starting the log splitter. (See
“Start-Up Procedure” section.)
❏❏Make sure the trailer hitch of the towing vehicle is equipped with a 2
inch ball.
815-672-8596 1Iron & Oak
Serial Number ______________
Date-of-Purchase ___________
Please enter the serial number and purchase
date of your log splitter in the space provided.
Keep this manual for future reference.
NOTE: Iron and Oak Commercial Products reserves the right to make technical
changes for product improvement. This manual may contain illustrations
and photographs, for demonstration purposes, which slightly deviate from the
actual product design.

Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Personal Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Worksite Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operating Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Log Splitting Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Maintenance and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Refueling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Preventing Fires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Shipping List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Unpacking the Crate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Assembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Inspection and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
General Maintenance Check (before operating). . . . . . . . . . . . . . . . . . . . . . . . . 24
Engine Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Hydraulic Oil Change. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Hydraulic Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Replacement Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Hydraulic Oil Specifications (non foaming) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Warranty Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Optional Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4-Way Wedge Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Safety Flag Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Iron & Oak 2815-672-8596 815-672-8596 3Iron & Oak
Accidents can often be avoided by being alert and recognizing potentially haz-
ardous situations. Any individuals operating, maintaining, or repairing prod-
ucts manufactured by Iron & Oak Commercial Products should have the nec-
essary training, skills, and tools required to perform these functions properly
and safely. The safety information in this manual serves as a basic guide in an
attempt to prevent injury or death.
Iron & Oak Commercial Products cannot anticipate every possible circum-
stance that might involve a potential hazard. The warnings in this manual and
on the product itself are, therefore, not all inclusive. If tools, procedures, work
methods, or operating techniques that are not specifically mentioned by Iron &
Oak Commercial Products are used, you must satisfy yourself that they are safe
for you and for others. Make sure the log splitter will not be damaged or made
unsafe by any operation, lubrication, maintenance, or repair procedures that
you choose.
DO NOT proceed if any doubt arises about the correct or safe method of
performing anything found in this or other Iron & Oak Commercial Products’
manuals. Seek out expert assistance from a qualified person before continuing.
WARNING
CALIFORNIA PROPOSITION 65
Engine exhaust from this product contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive harm.
WARNING
To avoid personal injury or death, carefully read and understand all
instructions pertaining to the Iron & Oak Commercial Products’ log
splitter.
Do not attempt to assemble, operate, or maintain our product without
fully understanding all our instructions and safety precautions.
Do not operate the log splitter unless you read and understand the
instructions and warnings in this manual. If any doubt or question
arises about the correct or safe method of performing anything found
in this or other Iron & Oak Commercial Products’ manuals, contact
your Iron & Oak Commercial Products’ dealer or call the Sales and
Service representatives at our main headquarters. Proper care is
your responsibility.
WARNING

Worksite Safety
✔To avoid tripping, do not leave tools, logs, or other components laying around
the work area.
✘NEVER operate your log splitter on slippery, wet, muddy, or icy surfaces. The
location you choose should be flat, dry, and free from any tall grass, brush,
or other interferences.
✘NEVER operate the engine in an enclosed area. Exhaust fumes contain car-
bon monoxide that can be deadly when inhaled. Make sure the area is well
ventilated.
✘NEVER attempt to move your log splitter over hilly or uneven terrain without a
tow vehicle.
✘NEVER use your log splitter at night.
✔ALWAYS operate your log splitter on dry, solid, level ground.
✔ALWAYS block the wheels to prevent movement of the machine while in
operation.
Operating Safety
✔ALLOW ONLY ONE (1) PERSON TO LOAD AND OPERATE THE LOG
SPLITTER.
✔Allow only adults to operate the log splitter. No one under the age of 18 should
be allowed to operate the log splitter.
✔Always keep bystanders, including children and pets, at least twenty-five (25)
feet away from the work area. Only the operator should stand near the equip-
ment and only within the safe operating area prescribed in this manual (see the
photos on safe and unsafe operating zones in the “Operation” section.)
✔When the ram of the log splitter is in the return mode, keep your hands off the
machine — the log splitter is designed to automatically stop when the cylinder
is fully retracted.
✔ALWAYS disconnect the spark plug wire when the log splitter is not in operation.
✘Do not allow any person to operate the log splitter until they have read and
understood the safe operating instructions contained in this manual.
Introduction
The commercial BHH2003 and BHH3003 Horizontal Log Splitters are designed for tough
applications. With 20 or 30 tons of splitting force, a 12 second cycle time, and a 5 or 9
HP engine, the BHH2003 or BHH3003 will handle most of your commercial log splitting
needs. An attractive, powder-coated finish provides the finest protection available, and
Iron & Oak’s rigid quality-control and component testing help ensure years of productive,
reliable service. Since 1982, the name Iron & Oak has stood for quality and reliability
when it comes to log splitters and wood processing products.
Iron & Oak Commercial Products offers the finest commercial log splitter on the market
today!
✔Rugged, heavy-duty construction for years of exceptional service.
✔Ergonomic design for use in vertical and horizontal operating positions.
✔Rigid, quality-control during manufacturing ensures greater reliability.
✔Factory testing of all major components and hydraulic tank.
✔Powder-coated finish for the best appearance and weather protection.
✔Year-round manufacturing, parts, and support.
For additional information, contact us at:
Iron & Oak Commercial Products
410 W. Broadway Ave.
P.O. Box 577
Streator, Illinois 61364-0577
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Web Site: www.logsplitters-ironoak.com
Safety
The following is a list of safety rules you must follow in order to use your log
splitter safely.
Personal Protection
✔To avoid personal injury or death, carefully read and understand all instruc-
tions pertaining to the log splitter, including the engine manufacturer’s oper-
ating and maintenance instruction manual.
✔Always wear protective gear, such as safety
goggles, tight-fitting gloves without draw
strings or loose cuffs, steel-toed shoes, and
a protective hearing device.
✔To prevent injury, make sure all decals are attached to the log splitter and
are legible at all times.
N
I
NG
AR
Iron & Oak 4815-672-8596 815-672-8596 5Iron & Oak

✔ALWAYS check the oil level in the hydraulic oil tank and engine reservoir.
✘NEVER operate your log splitter when it is in need of repair or is in poor
mechanical condition.
✘NEVER tamper with the engine to run it at excessive speeds. The maximum
engine speed is preset and is within safety limits.
✘NEVER make alterations to your log splitter in any manner. Such alterations
can cause the log splitter to become unsafe and WILL VOID THE WARRANTY.
✘NEVER attach a rope or extension to the control lever or add width or height to
the splitting wedge. Such ALTERATIONS can cause the log splitter to become
UNSAFE and WILL VOID THE WARRANTY.
✘ALWAYS clean the unit after each use. If possible, store the unit inside or cover
it completely, if stored outside.
Towing
✔ALWAYS check before towing to make certain your log splitter is correctly and
securely attached to the towing vehicle. Be sure that the ball hitch you are
using is the proper size for the hitch coupler on the log splitter (see “Specifi-
cation” section). Be sure the safety chains are properly hooked to the vehicle
leaving enough slack for turning.
✔ALWAYS allow for added length of the log splitter when turning, parking, cross-
ing intersections, and in all driving situations.
✔ALWAYS be careful when backing up. You could jackknife your log splitter if
care is not taken.
✔ALWAYS disconnect your log splitter from your towing vehicle before attempt-
ing to use it.
✘NEVER exceed 35 m.p.h. when towing your log splitter. Obey all state and
local regulations when towing on state and local roads and highways. Adjust
your speed for terrain and conditions, as needed. Be extra cautious when tow-
ing over rough terrain, especially over a railroad crossing.
✘NEVER tow your log splitter when there is fuel in the engine’s tank.
✘NEVER allow anyone to sit or ride on your log splitter.
✘NEVER carry any cargo or wood on your log splitter.
✘Do not, under any circumstances, alter your log splitter. This equipment was
designed and engineered to be used in accordance with the operating instruc-
tions. Altering the equipment, or using the equipment in such a way as to cir-
cumvent its design capabilities and capacities, could result in serious or fatal
injury and WlLL VOID THE WARRANTY.
✘Never operate, or allow anyone else to operate, this equipment while under the
influence of medication, drugs, or alcohol.
✘Never wear loose clothing or jewelry that may get caught or become entan-
gled in the log splitter.
✘NEVER place hands or feet between log and splitting wedge or between log
and ram during the forward or reverse stroke.
✘DO NOT STRADDLE OR REACH ACROSS THE SPLITTING AREA WHEN
OPERATING THE LOG SPLITTER.
✘Do not step over your log splitter when the engine is running, because you may
trip or accidentally engage the ram.
✘NEVER attempt to load your log splitter while the ram is in motion.
✘Only use your hand to operate the control lever. NEVER use your foot, knee,
a rope, or any other extension device.
Log Splitting Safety
✔Always keep your fingers away from any cracks that open in the log during the
splitting operation.
✔ALWAYS make sure that both ends of the log you are splitting are cut as square
as possible. This will prevent the log from sliding out of position while under
pressure. Logs should be 24 inches or shorter in length.
✘NEVER try to split two logs on top of each other.
✘Never pile logs to be split in a manner that will cause you to reach across the
log splitter.
Maintenance and Repair
✔Follow all safety rules, because most accidents involving the operation, main-
tenance, or repair of products occur because the assembler/owner/operator
failed to observe basic safety rules or operating instructions.
✔ALWAYS inspect your log splitter before each use. Make sure all nuts, bolts,
screws, hydraulic fittings, hose clamps, etc. are securely tightened.
Iron & Oak 6815-672-8596 815-672-8596 7Iron & Oak

Assembly Instructions
Required Tools
• 10” crescent wrench
• Two 1/2’’ open end wrenches
• Two 9/16’’ open end wrenches
• Two 3/4” open end wrenches
• Funnel
• Pliers
• Band cutters
Shipping List
The following chart contains the list of parts that should be shipped as part of the
BHH2003 or BHH3003 Log Splitter.
Refueling
✔ONLY refuel the log splitter outdoors in a clear area void of gas fumes or spilled
gasoline.
✔ALWAYS use an approved fuel container to carry gasoline.
✔ALWAYS replace the log splitter gas cap and the fuel container cap securely.
✔If gasoline is spilled, move the machine away from the area of the spill and
avoid creating any source of ignition until the spilled gasoline has completely
evaporated.
✔Take a class B fire extinguisher with you when operating the log splitter in dry
areas as a precautionary measure against possible flying sparks.
✔Always store gasoline in an approved, tightly sealed container. Store the con-
tainer in a cool, dry place. Do not store the container in a house or near any
heating appliance.
✘Do not smoke or have open flames when refueling the engine.
Do not spill fuel. If fuel should spill, quickly wipe up the spill and allow
the excess to evaporate before continuing. Make sure gasoline
soaked rags are properly disposed of.
✘DO NOT fill the gas tank while the engine is hot or running. Allow time for the
engine to cool down before refueling.
Preventing Fires
✘NEVER operate the log splitter near a flame or spark. Oil and gasoline are
flammable and can explode.
✘NEVER smoke while operating or refueling the log splitter. Gasoline, oil, and
even gas fumes can explode.
Important Notice
The log splitter is equipped with an internal combustion engine and should not
be used on or near any unimproved forest-covered, brush-covered, or grass-
covered land unless the engine’s exhaust system is equipped with a spark
arrester meeting local or state laws (if any). If a spark arrester is used, it
should be maintained in effective working order by the owner and/or operator.
Iron & Oak 8815-672-8596 815-672-8596 9Iron & Oak
1On the pallet.
2In cardboard box.
Qty Description
1 Base Unit (engine)1
1 Rail Unit (hydraulic cylinder)1
1 Oil Filter2
Hitch Assembly Parts
1 Hitch Assembly (2 inch)2
2 Bolts (1/2-13 x 3 inch)2
2 Locknuts (1/2-13)2
2 Safety Chains2
1 Safety Quick-Link
Tongue and Front Leg Assembly
1 Tongue and Front Leg Weldment1
4 Bolts (1/2-13 x 1-1/2 inch)2
4 Lockwashers (1/2”)2
4 Nuts (1/2-13)2
Rail to Base Assembly
2 Bolts (1/2-13 x 1-1/2 inch)2
2 Lockwashers (1/2”)2
2 Nuts (1/2-13)2
Qty Description
Rail Latch Assembly
1 Rail Latch Assembly
2 Bolts (1/2-13 x 2-1/2 inch)2
2 Lockwashers (1/2 inch)2
2 Nuts (1/2-13)2
Valve Assembly
1 Control Lever (valve)2
1 Knob (valve lever)2
1 Valve Link2
3 Clevis Pins2
3 Cotter Pins2
Fender Assembly
2 Fenders2
4 Bolts (5/16-18 x 1 inch)2
4 Locknuts (5/16-18)2

Assembly Procedure
Some components are very heavy
and can be damaged if mis-han-
dled. Also, to help prevent per-
sonal injury, it is strongly recom-
mended that two (2) people work
together to uncrate and assemble
the log splitter.
1. Remove and read the instructions
and safety recommendations before
assembling or operating this log
splitter.
2. Remove the base unit from the pallet
using two people or a lifting device.
3. Attach the wheels to the base unit using
four lug nuts each.
CAUTION
Unpacking the Crate
1. Cut the metal banding and remove the top,
sides, ends, and protective plastic cover-
ing of the packing crate. Do not remove
the base unit or the rail assembly from the
bottom pallet at this time.
2. Carefully check the larger components on
the shipping pallet for damage. If the parts
are damaged call Iron & Oak Products at
[phone].
3. Cut all the remaining banding straps, open
the cardboard box, and make sure all the
smaller parts have been shipped. The
chart in the “Shipping List” section pro-
vides a complete list of all the parts
shipped with your log splitter. If any parts
are missing call Iron & Oak Products at
[phone].
NOTE: The contents of the cardboard box
contains the hitch assembly, two safety chains
and safety quick-link, two fenders, and a filter
element. Also, included in the box is a plastic
bag of miscellaneous hardware and a plastic
bag with the valve handle, knob, valve link,
clevis pins, and cotter pins.
Iron & Oak 10 815-672-8596 815-672-8596 11 Iron & Oak

7. Bolt the base unit to the rail assembly
using four 1/2-13 x 1-1/2 inch long hex
head bolts, lockwashers, and nuts, as
shown. Tighten the nuts securely.
8. Bolt the jack leg assembly to the rail
assembly using two 1/2-13 x 1-1/2 inch
long hex head bolts, lockwashers, and
nuts, as shown. Tighten the nuts securely.
9. Link the ends of safety chains together
with the safety quick-link and tighten the
link’s locknut securely with a wrench.
10. Place the hitch over the attachment tube,
aligning the bolt holes, and insert the rear
1/2-13 x 3 inch bolt (A). Install and tight-
en the locknut.
Insert the end of quick link into front tube
of the rail assembly and insert a 1/2-13 x
3 inch bolt (B) through link and hitch.
Install and tighten the locknut.
4. Position wooden blocking under the
engine mounting plate to level and support
the base unit.
5. Using two people or a lifting device,
remove the rail assembly from the pallet.
Important Notice
Attach the lifting device, as shown, in a
way that will not damage any component
parts of the log splitter, such as the cylin-
der or the valve.
6. Carefully position the rail assembly over
the base unit.
Iron & Oak 12 815-672-8596 815-672-8596 13 Iron & Oak

15. Attach the other high-pressure hose from
the pump to the bottom of the valve.
Securely tighten the hose fitting.
NOTE: The high-pressure hose is self-seal-
ing and does not require any type of sealing
material. Tighten the fitting with a 10 inch
crescent wrench.
16. Remove the oil filter from the plastic
cover and apply a thin coat of oil to the
rubber seal. Screw the filter onto the
filter head, located near the hydraulic
tank. Once the filter makes contact with
the filter head, turn it an additional 3/4
turn. Hand-tighten only.
17. Bolt the fenders onto the fender brackets
using two 5/16-18 x 1 inch long hex head
bolts and locknuts. The fenders are inter-
changeable (left or right). Position the
fender over the tire with equal spacing in
the front and back.
18. The log splitter is now completely assem-
bled. Follow the “Start-Up Procedure,”
in the following section, which adds
oil to the engine and hydraulic tank
before trying to start the engine.
11. Install the valve link onto the valve body,
as shown, using a 1/4 x 1 inch long cle-
vis pin. Secure the clevis pin with a cot-
ter pin (bend the ends of the cotter pin to
make it secure).
12. Install the valve handle onto the valve link
using a 1/4 x 3/4 inch long clevis pin.
Secure the clevis pin with a cotter pin
(bend the ends of the cotter pin to make
it secure).
13. Attach the valve handle to the valve spool
using a 1/4 x 1 inch long clevis pin.
Secure the clevis pin with a cotter pin
(bend the ends of the cotter pin to make
it secure). Attach the knob to the valve
handle, if necessary.
14. Attach the high-pressure hose from the
top of the valve to the filter assembly.
Securely tighten the hose fitting.
NOTE: The high-pressure hose is self-seal-
ing and does not require any type of sealing
material. Tighten the fitting with a 10 inch
crescent wrench.
Iron & Oak 14 815-672-8596 815-672-8596 15 Iron & Oak

5. Push the valve control handle, with one hand, to the forward (extend) position
(towards the splitting wedge) and pull the engine starter cord, with the other hand,
(approximately 15 times) until the cylinder piston moves forward. (Keep everything
away from the pusher plate and wedge during this step.)
Cylinder Extend Cylinder Retract
NOTE: Extending the cylinder piston draws the hydraulic fluid through the system and
expels any trapped air in the system.
6. Check the fluid level in the hydraulic tank and add oil as needed.
Be careful not to spill fuel when filling the engine. If fuel should spill,
quickly wipe off and allow the excess fuel to evaporate before continu-
ing. Fuel and fuel vapors are highly flammable and can cause personal
injury or even death when ignited.
Important Notice
If your log splitter is equipped with a factory installed engine, do not mix oil
with the gasoline. Using mixed oil/gasoline in a four cycle engine can cause
engine damage.
7. Fill the engine’s fuel tank with fresh, clean, lead-free automotive gasoline.
8. Attach the spark plug wire and start the engine per the manufacturer’s instructions.
9. With the engine running, push the valve control handle to the retract position and
retract the cylinder piston. The cylinder valve will automatically stop the cylinder from
retracting when it reaches the end of its stroke. Cycle the log splitter several times.
10. Again, check the fluid level in the hydraulic tank and add oil as needed. Replace
and tighten the fill cap.
11. Your log splitter is now ready to use.
WARNING
Start-up Procedure
Important Notice
Do not start the engine. Follow all the instructions in the “Start-up Pro-
cedure” before operating the log splitter. Failure to follow this recommen-
dation will result in engine and hydraulic pump damage.
If this log splitter is purchased without an engine, the customer assumes all liabilities that
might arise from an engine that is incompatible with the design of the log splitter.
Also, any unauthorized changes or modifications to the log splitter will void all warranties.
IMPORTANT: The hydraulic system oil filter, for your log splitter, is not factory installed.
Make sure the filter is installed before attempting to fill the hydraulic tank or start the
engine. (Installation instructions are also printed on the side of the filter).
IMPORTANT: Before starting the engine, read the engine manufacturer’s operating and
maintenance instruction manual. If an engine manual was not supplied with the log split-
ter, it is your responsibility to obtain a manual. Start by contacting the store where you
purchased the log splitter. If they cannot help you, contact the engine manufacturer.
1. Fill the hydraulic tank with SAE 10W tractor hydraulic oil or automatic transmission
fluid, such as Dextron III. The tank is full when the oil level is approximately one inch
from the top of the tank. Do not tighten the fill cap at this time.
NOTE: The total hydraulic system oil capacity for this unit is 9.5 gallons.
2. Fill the engine’s crank case with the engine manufacturer’s recommended oil.
3. Lubricate the surface of slide rail with grease. This will help to prevent wear between
the slide plates and the slide rail.
4. Remove the spark plug wire from the engine. This prevents the engine from starting
until the hydraulic pump and cylinder are completely filled with oil. Make sure the
spark plug wire is held away from the spark plug with string or other nonconductive
material.
Iron & Oak 16 815-672-8596 815-672-8596 17 Iron & Oak

4. Attach the towing safety chains to the tow
vehicle.
5. Place a customer supplied lock or lock pin
into the latch assembly of the hitch.
Making sure the log splitter is securely
attached to the vehicle is the responsibility
of the owner/operator. Failure to securely
attach the log splitter can cause loss of
control of the vehicle or the log splitter
being separated from the towing vehicle,
resulting in serious injury or death.
WARNING
Towing
Maximum Speed Limit — 35 mph
Your log splitter is built on a solid, unsuspended axle. To prevent damage or
possible loss of vehicle control, use extreme caution when towing and do not
exceed a vehicle speed of 35 mph, especially when driving on a bumpy road.
1. Position the hitch of the log splitter over or
onto the tow vehicle’s tow ball. In some
cases, the hitch may not totally engage
with the ball without raising the jack leg
assembly. Pull the latch assembly on the
hitch up and into the open position.
2. Release the latch assembly on the hitch
and lock the hitch onto the ball.
3. Raise the front leg to the towing position
by pulling the spring pin. If not already
secure, make sure the hitch is properly
and securely attached to the ball.
WARNING
Iron & Oak 18 815-672-8596 815-672-8596 19 Iron & Oak

Before loading and operating the log splitter,
put on the proper protective gear such as
safety goggles, face shield, hearing protec-
tion, tight-fitting gloves (without draw strings or loose cuffs), and steel-toed
shoes.
3. Start the engine using the instructions from
the engine manual. If the log splitter has
not been running (cold engine), warm up
the engine and hydraulic system by run-
ning the engine at half throttle for 3 to 4
minutes, then advance the engine throttle
control to maximum speed.
4. Use the following photos for the correct
and incorrect methods of splitting logs.
Never split a log using an incorrect or
unsafe method.
a. Place the log on the log splitter. Grasp
the log on the sides near the middle of
the block. Center the log, side-to-side,
on the rail of the log splitter, making
sure the sawed end is against the split-
ting wedge.
Do not place your hands on the
ends of the log when loading the
log splitter. This is a very
UNSAFE method and can result in injury to
your hands.
CAUTION
WARNING
Operation
Do not attempt to operate the log splitter without fully understanding
all our instructions, safety precautions, and/or warnings. If any doubt
or question arises about the correct or safe method of performing any-
thing found in this or other Iron & Oak Products’manuals, contact your
Iron & Oak Products’ dealer or call the Sales and Service representatives at our
main headquarters. Proper care is your responsibility.
When operating the log splitter, make sure you
are standing in the safe operating area, as
shown in these pictures. You must stay in the
safe operating area at all times when the
splitting wedge is in motion (whether extend-
ing or retracting). Never place any part of your
body into a position that causes an unsafe
operating condition.
1. Set your log splitter on flat, dry ground.
Make sure you read all the recommenda-
tions from the “Safety” section, before
using the log splitter.
2. Make sure both ends of the log you are
splitting are cut as square as possible.
This will prevent the log from sliding out of
position while under pressure. All logs
should be 24 inches long or shorter.
Never attempt to split wood across the
grain. The log splitter was not designed for
cross-grain splitting. Doing so will dam-
age the log splitter and may cause person-
al injury.
WARNING
WARNING
Iron & Oak 20 815-672-8596 815-672-8596 21 Iron & Oak

c. Hold the control lever, extending the
splitting wedge, until the log is split or
the cylinder rod stops at its maximum
travel position. Stop the log splitter
(forward movement), at any point in
the splitting process, if you feel an
unsafe log splitting condition is occur-
ring. As the log is being split, DO NOT
reach forward and attempt to catch the
split wood — let it fall to the ground.
d. Once the wedge reaches its full for-
ward travel, pull back on the control
lever to the full retract position. The
ram of the cylinder will automatically
retract into the cylinder. It is not nec-
essary to hold the control lever as the
cylinder retracts. Stop the wedge if the
log sticks (see caution below). When
the cylinder is fully retracted, the con-
trol valve will automatically shift to a
neutral position.
e. DO NOT load another log or remove
split pieces until the wedge has com-
pletely stopped and the control handle
automatically returns to the neutral
position.
Depending on the type of wood
being split, a log may not always
break into two pieces and fall to
the ground. If a log sticks to the wedge,
place the valve handle in the neutral posi-
tion (stop the wedge from retracting) and
carefully remove the log from the wedge.
Allowing the log to remain attached to the
wedge when it is fully retracted could lead
to possible injury and/or damage to the log
splitter.
CAUTION
b. Only using your hand, push the control
lever forward (towards the log). If the
log moves before it is contacted by the
pusher plate, release the control lever
and then reposition the log. Operate
the log splitter only when standing in
the safe operating area, as shown in
the picture.
Make sure you stand clear from the
engine’s exhaust. Hot exhaust is
intense and can cause serious injury.
If you find you must hold the log
until the pusher plate touches it
and holds it in place, be very care-
ful not to put your hand between the log
and the pusher plate or the log and the
wedge. If you must, hold the log on top
and in the middle. Remove your hand
immediately when the splitting wedge
engages the log. Never use extension
devices to operate the valve control handle.
Do not operate the log splitter by
reaching across the rail. This is a
very UNSAFE method which can
cause personal injury or even death.
Do not reach or step across the
rail while the log splitter is run-
ning. This is a very UNSAFE
method which can cause personal injury
or even death.
WARNING
WARNING
CAUTION
CAUTION
Iron & Oak 22 815-672-8596 815-672-8596 23 Iron & Oak

NotesInspection and Maintenance
General Maintenance Check (before operating)
The hydraulic system (hoses, cylinder, and pump) should be carefully inspected before
each use. Also, inspect the mechanical parts at the same time. Make sure all clamps,
nuts, bolts, fittings, etc. are properly installed and tightened.
Do not check for leaks with your hand. Leaks can be located by pass-
ing a piece of cardboard or wood around the suspected leak and look-
ing for discoloration. High-pressure fluid escaping from a very small
hole can be almost invisible. Escaping fluid under pressure can have
sufficient force to penetrate skin, causing serious injury or even death.
If fluid is injected into your skin, it must be treated immediately by a doc-
tor familiar with this type of injury.
Always replace frayed, kinked, or cracked hoses and/or other damaged hydraulic com-
ponents with Iron & Oak Commercial Products authorized parts and components speci-
fied in the “Parts” section of this manual. Replacement parts from secondary suppliers
(not original Iron and Oak replacement parts) can lead to product damage and/or per-
sonal injury, and will void the warranty.
Do not remove the cap from the hydraulic tank or reservoir while the log
splitter is running. Hot oil, under pressure, could be expelled, resulting
in serious injury.
Should it become necessary to loosen or remove any hydraulic fitting or line, be sure to
relieve all hydraulic pressure by shutting off the engine, removing spark plug wire, and
moving the valve control handle back and forth several times until no cylinder movement
is visible.
Engine Service
Refer to the engine manufacturers’ manual for engine maintenance and repair.
Storage
Refer to the engine manufacturers’ manual for engine storage. No special procedures
are required for the hydraulic system to store the log splitter.
CAUTION
WARNING
Iron & Oak 24 815-672-8596 815-672-8596 25 Iron & Oak

4. Refill the hydraulic tank.
a. Reconnect inlet hose (2) to the pump.
b. Remove the hydraulic tank fill cap and
fill the tank with the recommended
type and quantity of oil. Replace the
cap.
5. Drain and refill the piston end of the
cylinder.
a. Hold the valve handle in the retract
position and pull the engine pull start
cord until the rod is fully retracted.
This step removes the old oil from the
piston end of the cylinder.
b. Reconnect return hose (1) to the oil
filter.
c. Extend the cylinder by holding the valve
handle forward and pulling on the
engine’s pull start cord until the cylinder
is completely extended. This step refills
the piston end of the cylinder.
6. Start the engine and cycle the cylinder.
a. Replace the spark plug and spark plug
wire.
b. Start the engine and cycle the cylinder
several times.
c. Retract the cylinder and shut off the
engine.
d. Recheck the hydraulic tank to make
sure oil is filled within approximately
one inch from the top of the tank.
Hydraulic Oil Change
Iron & Oak Commercial Products recommends an oil and filter change every 100 hours
of operation. Refer to the “Specifications” section in this manual for the type and quan-
tity of oil.
Important Notice
Never run the log splitter unless the hydraulic oil tank is full.
1. Drain the head end of the cylinder.
a. Remove the spark plug wire and spark
plug to help reduce the back pressure
on the engine and to prevent it from
starting.
b. Disconnect return hose (1) from the oil
filter housing and place it in a waste oil
container. (Please properly dispose of
the waste oil per local regulations.)
c. Extend the cylinder by holding the
valve handle forward and pulling on
the engine’s pull start cord until oil from
the return line stops flowing. This step
drains the head end of the cylinder.
2. Drain the hydraulic tank.
a. Place a waste oil container under inlet
hose (2).
b. Remove the inlet hose from the pump.
c. Slightly raise the front of the log splitter
to completely drain the tank.
3. Remove and replace the oil filter.
a. Remove the existing oil filter and prop-
erly dispose of it.
b. Apply a thin coat of oil to the rubber
seal of the new oil filter.
c. Screw the filter onto the filter head.
Once the filter makes contact with the
filter head, turn it an additional 3/4
turn. Hand-tighten only.
Iron & Oak 26 815-672-8596 815-672-8596 27 Iron & Oak

Troubleshooting
The following section details procedures for checking your log splitter, should you
encounter a malfunction. We recommend that you do not attempt to make repairs to the
log splitter. In the long run, it is better to take your log splitter to a servicing lawn and gar-
den dealer for repairs.
Problem: When the control handle is pushed forward (extend), the splitting pusher plate
does not move.
1. Check the hydraulic tank to make sure the oil level is one inch from the top
of the tank.
2. Remove the pump from the engine flange. Check the coupler, making
sure the drive keys are in place and there is no damage to the blue ure-
thane spider.
3. Disconnect the pusher plate from the cylinder. Grasp the hydraulic cylin-
der shaft and try to pull it out. If the rod comes out easily, you will need to
rebuild or replace the cylinder.
4. Once you have determined that the engine-to-pump coupler is intact and
the cylinder is in good condition, you will need to replace the pump.
Problem: The engine stalls when the pusher plate engages the wood.
1. The engine may not be properly adjusted. Take the engine to a service
center for repair and/or adjustment.
2. If all engine settings are correct, replace the pump.
Problem: The pusher plate moves slowly, but will split wood.
1. Check the oil level in the hydraulic tank and fill if necessary.
2. Check the high-pressure hose, fittings, and valve openings for dirt and
debris that may have obstructed the openings.
3. If the ram speed is still slow, replace the pump.
Problem: The ram will not automatically retract.
1. Check the slide rail or pusher plate for damage.
2. Push the valve handle to the retract position. If the handle will not stay in
this position, adjust valve detent, as described below.
Detent Adjustment Procedure
a. Locate adjustment screw on lower side of valve body.
b. Loosen locknuts.
c. Turn adjustment screw clockwise one-half turn and retighten locknuts.
d. Start the engine and test for detent operation. If detent does not work,
repeat Steps b and c.
3. If adjustment of detent does not correct the problem, replace the valve
assembly.
Problem: Oil squirts from the fill plug during operation.
1. The oil tank may be over-filled. Drain oil to 1 inch below the top of the tank.
2. The log splitter is not level. Make sure the log splitter is on level ground.
Specifications
Mechanical Specifications
Slide Rail . . . . . . . . . . . . . . . . . . . . . . . . . 6 x 6 inch reinforced, heavy-duty H-beam
Wedge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9”, High carbon steel, compound angle
Force/Tonnage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 tons1or 30 tons2
Cylinder Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 inches
Log Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 inch maximum
Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 seconds (approx.)
Operating Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Horizontal
Wheels & Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High-Speed, 4.80 x 12”
Safety Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard
2” Hitch Coupler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard
Engine . . . . . . . 5 HP1or 9 HP2horizontal shaft engine (Briggs & Stratton or Honda)
Hydraulic Specifications
Cylinder (Clevis-Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 24 inch1or 5 x 24 inch2
with 1-3/4 inch1or 2 inch2rod
Hydraulic Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 gallons
Hydraulic System Capacity (includes cylinder, tank, hoses, and filter) . . . . 9.5 gallons
Hydraulic Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Spin-on, 60 micron filter
Safety Release Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . Detent, auto return
Gear Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-stage, 11 GPM1or 16 GPM2
1Model BHH2003 only.
2Model BHH3003 only.
Replacement Filters
Replacement Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NAPA 1553
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FRAM PF1654
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WIX 51552
Hydraulic Oil Specifications (non foaming)
Tractor Hydraulic Oil
For extremely cold weather conditions . . . . . . . . . . . . . . . . . . . . . . . . . . SAE 10W
For extremely warm weather conditions . . . . . . . . . . . . . . . . . . . . . . . . . SAE 30W
Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dextron Ill
Important Notice
DO NOT mix tractor hydraulic oil with transmission fluid. Use one or the other.
Iron & Oak 28 815-672-8596 815-672-8596 29 Iron & Oak

Decals
Make sure all decals are attached to the log splitter and/or engine and
are legible at all times.
N
I
NG
AR
WARNING
Iron & Oak 30 815-672-8596 815-672-8596 31 Iron & Oak
(8) (NS)
Item Part No. Description Qty.
1 BR002627 Decal, Iron & Oak, 22 Ton 1
NA Decal, Iron & Oak, 30 Ton 1
2 BR002652 Decal, Notice 1
3 BR002621 Decal, Flag 1
4 BR002558 Decal, Warning 1
5 BR002555 Decal, Caution 1
6 BR002521 Decal, Serial Number 1
7 BR002557 Decal, Caution 1
8 (NS) BR002665 Decal, Warning Engine 1
9 BR002653 Decal, Maximum Speed 1
(6) (7)
NS - Not Shown
NA - Not Available
(5)
(2)
(4)
(3)
(9)

Parts
Iron & Oak 32 815-672-8596 815-672-8596 33 Iron & Oak
IO2030-B
10
1
18,19
15
16
17
13
14
3
4
2
7
9
3
6
5
8
11
12
Item Part No. Description Qty 1 BR021257 Weldment, Base Tank 1 2 BR008301B Seal, Inside 2 3 BR008301A Bearing, Tapered Roller 4 4 BR008317 Hub, Studded 2 5 BR008311 Tire, 4.8” x 12” 2 6 BR008301D Washer, Thrust 2 7 BR008301F Key, Cotter, 1/8 x 2” long 2 8 BR008301E Nut, Spindle 2 9 BR008301G Dust Cap 2 10 BR008317A Nut, Lug 8 11 BR007003 Fender 2 12 BR001209 Bolt, 5/16-18 x 3/4” long 4 13 BR001325 Locknut, 5/16-18 4 14 BR001212 Bolt, 5/16-18 x 1-3/4” long 4 15 BR001401 Washer, Flat, 5/16” 4 16 BR001402 Lockwasher, 5/16” 4 17 BR001303 Nut, 5/16-18 4 18 BR001022 Fill Plug, Vented 1 19 BR001025 O-ring, Vented Fill Plug 1
1Part of Model BHH2003 only. 2Part of Model BHH3003 only.

815-672-8596 35 Iron & OakIron & Oak 34 815-672-8596
6
5
IO2030-A
10
7
4
1
25
22
21
8
3
2
3
2
4
16
15
1312
9
20
19
18
17
25
24
23
14
Item Part No. Description Qty 1 BR021256 Weldment, Rail 1 2 BR001304 Nut, 1/2-13 4 3 BR001404 Lockwasher, 1/2” 4 4 BR001208 Bolt, 1/2-13 x 1-1/2” long 4 5 BR001304 Nut, 1/2-13 6 6 BR001404 Lockwasher, 1/2” 6 7 BR013103 Guide, Slide 2 8 BR013104 Retainer, Slide 2 9 BR001259 Bolt, Carriage, 1/2-13 x 2-1/2” 6 10 BR021259-03 Weldment, Slide Plate 1 11 — — 12 BR001203 Bolt, 1/2-13 x 3” long 2 13 BR008511 Safety Quick-Link 1 14 BR008508 Chain Assembly 2 15 BR008540 Coupler, Hitch, 2” 1 16 BR001321 Locknut, 1/2-13 2 17 BR001208 Bolt, 1/2-13 x 1-1/2” long 2 18 BR001404 Lockwasher, 1/2” 2 19 BR001304 Nut, 1/2-13 2 20 BR021450 Weldment, Jack Leg 1 21 BR001765 Pin, Clevis, 1/2 x 2-3/4” long 1 22 BR001761 Clip, Hairpin, 3/32 x 1-3/4” long 1
Item Part No. Description Qty 23 BR00405714” Cylinder 1
BR00406525” Cylinder
24 BR008531A Pin, Grooved, 1” dia. 1 25 BR001705 Clip, Hairpin (Cylinder) 2
1Part of Model BHH2003 only. 2Part of Model BHH3003 only.

Iron & Oak 36 815-672-8596 815-672-8596 37 Iron & Oak
IO2030-C
16
8
10
9
12
14
To Valve
13 654
3
2
21 7
11 22
24
25
23
1
15
26
27
28
26
26
19
18
18 18A
17
20
20A
Item Part No. Description Qty 1 BR0030051Engine, Briggs, 5 HP 1
BR0030082Engine, Briggs, 8 HP
2 BR0101041Key, Engine Shaft 1
BR0101052Key, Engine Shaft
3 BR0013831Screw, Set, 1/4-20 x 1/2” long 2
BR0013822Screw, Set, 5/16-18
4 BR006002C1Coupling, Engine 1
BR006001C2Coupling, Engine
5 BR006002B1Spider 1
BR006001B2Spider
6 BR006002D1Coupling, Pump 1
BR006001D2Coupling, Pump
7 BR0200101Flange, Engine 1
BR0201102Flange, Engine
8 BR001402 Lockwasher 4 9 BR0012661Bolt, 5/16-24 x 3/4” long 4
BR0012652Bolt, 5/16-24 x 1” long
10 BR002001BK1Key, Pump Shaft 1
BR002002BK2Key, Pump Shaft 1
11 BR002001H1Pump, Hydraulic 1
BR002002B2Pump, Hydraulic
12 BR001266 Bolt, 5/16-24 x 3/4” long 4
Item Part No. Description Qty 13 BR001112 Casting, Head Filter 1 14 BR001113 Element, Filter 1 15 BR005055 Hose, High-Pressure 1 16 BR005064 Hose, High-Pressure 1 17 BR004152 Valve Link 1 18 BR004153 Clevis Pin, Long 2 18A BR004154 Clevis Pin, Short 1 19 BR004215 Pin, Cotter, 3/32 x 1/2” long 3 20 BR004102B Handle, Valve 1 20A BR004102K Knob 1 21 BR004999 Clamp, Hose, No. 16 2 22 BR005080 Hose, Low-Pressure, 1 x 9” 1 23 BR004102 Control Valve 1 24 BR001052 Fitting, Straight 1 25 BR004002K Fitting, 90° Elbow 1 26 BR001017 Fitting, High Pressure, 90° 3 27 BR004119 Hose, High-Pressure 2 28 BR001241 End Cap 1
1Part of Model BHH2003 only. 2Part of Model BHH3003 only.