Dirty Hand Tools 100171 User manual

22-Ton, 27-Ton, 28-Ton & 35-Ton
Vertical/Horizontal Log Splitters
is safety alert symbol identies important safety messages in
this manual. Failure to follow this important safety information
may result in serious injury or death.
MODEL #’s 100171 (22-Ton), 100408 (27-Ton), 100342 (28-Ton), 100466 (35-Ton)
Operation Manual
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Part # 100164 Rev E
Effective November 15, 2016

1100 W 120th Ave, Suite 600
Westminster, CO 80234 • 720-287-5182
For Service or Questions
Call 1-877-487-8275
720-287-5182
www.dirtyhandtools.com
Dirty Hand Tools® is a brand of

Table of Contents
Important Safety Information .....................................................4
Intended Use ..............................................................................4
Personal Protective Equipment ..................................................4
Safety Decals ..............................................................................5
General Safety ............................................................................6
Preparation of the Log ...............................................................6
Work Area ................................................................................. 6
Operation of the Log Splitter .....................................................7
Repair and Maintenance Safety ..................................................8
Hydraulic Safety .........................................................................8
Fire Prevention ...........................................................................9
Towing Safety ...........................................................................10
Assembly Instructions
1. Assembly Overview ..............................................................11
Hardware Kit.........................................................................12
Log Catcher Kit ....................................................................13
2. Unpacking the Container ......................................................14
3. Tank and Wheel Assembly ....................................................18
4. Tank and Tongue Assembly...................................................19
5. Tank and Engine Assembly (28/35-Ton)...............................20
6. Beam Bracket Assembly ........................................................21
7. Beam and Tank Assembly......................................................22
8. Hydraulic Line Connection...................................................23
9. Log Catcher Installation........................................................24
10. Final Installation Check.......................................................24
Operating Instructions
Operating Instructions ..............................................................25
Hydraulic Oil Recommendations .............................................25
Engine Oil Recommendations .................................................25
Starting Instructions .................................................................26
Towing ..................................................................................... 27
Maintenance .............................................................................28
Assembly Details/Parts Lists
Tank/Engine Assembly ..............................................................29
Pump/Engine Assembly.............................................................30
Beam Assembly ..........................................................................31
Tongue Assembly .......................................................................32
Specications & Warranty .........................................Back Cover
3

Important Safety Information
WARNING: Read and understand the complete Operation
Manual before assembling or using this product! Failure
to comprehend and comply with warnings, cautions and
instructions for assembly and operation could result in serious
injury or death.
Do not permit children to operate this equipment at any time. Do
not permit others that have not read and understood the complete
Operation Manual to operate this equipment. Operation of power
equipment can be dangerous. It is the sole responsibility of the
operator to understand the assembly and safe operation of this
product.
Call our customer service department at 720-287-5182,
1-877-487-8275, or visit www.dirtyhandtools.com if you have any
questions or concerns about the safe operation of this equipment.
INTENDED USE
Do Not Use the log splitter for any purpose other than splitting
wood, for which it was designed. Any other use is unauthorized
and may result in serious injury or death.
PERSONAL PROTECTIVE EQUIPMENT
When operating this log splitter it is essential that you wear safety
gear including goggles or safey glasses, steel toed shoes and tight
fitting gloves (no loose cuffs or draw strings). Always wear ear
plugs or sound deafening headphones to protect against hearing
loss when operating this log splitter.
Do Not wear loose clothing or jewelry that can be caught by
moving parts of the log splitter. Keep clothing and hair away
from all moving parts when operating this log splitter.
4
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WARNING
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DANGER
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CAUTION

5
Important Safety Information
SAFETY DECALS
Make sure all safety warning decals are attached and in readable
condition. Replace missing or defaced decals. Contact Dirty Hand
Tools at 1-877-487-8275 for replacement decals.
Operator Zone Decal Part # 100399
Oil Level Decal Part # 100207
Operation Decal Part # 100212
Warning Decal Part # 100208
Pinch Point Decal Part # 100204

6
Important Safety Information
GENERAL SAFETY
Failure to follow warnings, cautions, assembly and operation
instructions in the Operation Manual may result in serious
injury or death.
Read the Operation Manual before operation.
• Do not permit children to operate this equipment at any time.
Do not permit others that have not read and understood the
complete Operation Manual to operate this equipment.
• Keep all people and pets a minimum of 10 feet away from the
work area when operating this log splitter. Only the operator is
to be near the log splitter during use.
• Do not operate the log splitter when under the influence of
alcohol, drugs or medication.
• Do not allow a person who is tired or otherwise impaired or not
completely alert to operate the log splitter.
PREPARATION OF THE LOG
Both ends of the log should be cut as square as possible to prevent
the log from rotating out of the splitter during operation.
Do not split logs greater than 25 in. in length.
WORK AREA
• Do not operate the log splitter on icy, wet, muddy or otherwise
slippery ground. ONLY operate your log splitter on level ground.
Operating on a slope could cause the log splitter to roll over or
logs to fall o of the equipment, which could result in injury.
• Do not operate the log splitter in an enclosed area. Exhaust
fumes from the engine contain carbon monoxide which can be
harmful or deadly when inhaled.
• Do not move the log splitter over hilly or uneven terrain without
a tow vehicle or adequate help.
• Use a tire chock or block on the wheels to prevent movement of
the log splitter while in operation.
• Operate the log splitter in daylight or under good artificial light.
• Keep the work area free of clutter. Remove split wood from
around the log splitter immediately after each use to avoid
potential tripping.
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DANGER
!
DANGER

7
Important Safety Information
OPERATION OF THE LOG SPLITTER
Operate the log splitter from within the operation zone as shown
in the diagrams below. e operator has the safest and most
efficient access to the control valve and the beam in these locations.
Failure to operate the log splitter in this position can result in
serious injury or death.
• Make sure the operator knows how to stop and disengage the
controls before operating.
• Do not place hands or feet between the log and splitting wedge
during forward or reverse stroke. Serious injury or death could
result.
• Do not straddle or step over the log splitter during operation.
• Do not reach or bend over the log splitter to pick up a log.
• Do not attempt to split two logs on top of each other.
• Do not attempt to cross split a log.
• Do not attempt to load your log splitter when the ram or wedge
is in motion.
• Use your hand to operate the control lever on the valve. Do not
use your foot, a rope or any extension device.
• Do not move the log splitter while the engine is running.
• Never leave the equipment unattended while the engine is
running. Shut off the engine even if you are leaving the log
splitter for a short period of time.
• Avoid contact with the muffler and other hot areas of the engine
during operation or after running to prevent burns.
!
DANGER
!
DANGER

8
Important Safety Information
REPAIR AND MAINTENANCE
• Do not operate the log splitter when it is in poor mechanical
condition or in need of repair. Frequently check that all nuts,
bolts, screws, hydraulic fittings and hose clamps are tight.
• Do not alter the log splitter in any manner. Any alteration will
void the warranty and could cause the log splitter to be unsafe
to operate. Perform all recommended maintenance procedures
before using the log splitter. Replace all damaged or worn parts
immediately.
• Do not tamper with the engine to run it at excessive speeds.
e maximum engine speed is preset by the manufacturer and is
within safety limits. See Kohler engine manual.
• Remove the spark plug wire before performing any service or
repair on the log splitter.
• Always check the level of hydraulic oil and engine oil before
operation.
• Replacement parts must meet manufacturer’s specifications.
HYDRAULIC SAFETY
e hydraulic system of the log splitter requires careful inspection
along with the mechanical parts. Be sure to replace frayed, kinked,
cracked or otherwise damaged hydraulic hoses or hydraulic
components.
• Check for hydraulic uid leaks by passing a piece of paper or
cardboard underneath or over the area of the leak. Do not check
for leaks with your hand. Fluid escaping from the smallest hole,
under pressure, can have enough force to penetrate the skin causing
serious injury or death.
• Seek professional medical attention immediately if injured
by escaping hydraulic uid. Serious infection or reaction can
develop if medical treatment is not administered immediately.
• Relieve all pressure by shutting off the engine and moving the
valve control handle back and forth should it become necessary to
loosen or remove any hydraulic fitting.
• Do not remove the cap from the hydraulic tank or reservoir while
the log splitter is running. e tank could contain hot oil under
pressure which could result in serious injury.
• Do not adjust the hydraulic valve. e pressure relief valve on
the log splitter is preset at the factory. Only a qualied service
technician should perform this adjustment.
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WARNING

9
Important Safety Information
FIRE PREVENTION
• Do not operate the log splitter near an open flame or spark.
Hydraulic oil and gasoline are ammable and can explode.
• Do not fill the gas tank while the engine is hot or running.
Allow the engine to cool before refueling.
• Do not smoke while operating or refueling the log splitter. Gas
fumes can easily explode.
• Refuel the log splitter in a clear area with no gas fumes or spilled
gas. Use an approved fuel container. Replace the gas cap securely.
If gasoline has spilled, move the log splitter away from the area
of the spill and avoid creating any source of ignition until the
spilled gas has evaporated.
• Keep a Class B fire extinguisher on hand when operating this log
splitter in dry areas as a precautionary measure against possible
flying sparks.
• Drain the fuel tank prior to storage to avoid the potential fire
hazard. Store gasoline in an approved, tightly sealed container.
Store the container in a cool, dry place.
• Turn the fuel shut off valve on the engine to the “OFF” position
before towing the log splitter. Failure to do so may result in
flooding the engine.
IMPORTANT NOTE:
is 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 applicable
local or state laws (if any). If a spark arrester is used, it should be
maintained in effective working order by the operator. In the state
of California a spark arrester is required by law. Other states have
similar laws.
Federal laws apply on federal lands. A spark arrester muffler
(optional by manufacturer) is available as an accessory at your
nearest engine dealer. Always check the legal requirements in your
area.
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CAUTION
!
CAUTION

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Important Safety Information
TOWING SAFETY
•Check all local and state regulations regarding towing, licensing,
and lights before towing your log splitter.
• Check before towing to make sure that the log splitter is
correctly and securely attached to the towing vehicle and that the
safety chains are secured to the hitch or bumper of the vehicle
with enough slack to allow turning. Always use a Class I, 2” ball
with this log splitter.
• Do not carry any cargo or wood on the log splitter.
• Do not allow anyone to sit or ride on the log splitter.
• Disconnect the log splitter from the towing vehicle before
operating it.
• Use care when backing up with the log splitter in tow to avoid
jack-knifing. Allow for added length of the log splitter when
turning, parking, crossing intersections and in all driving
situations.
• Do not exceed 45 mph when towing your log splitter. Towing
the log splitter at speeds higher than 45 mph could result in loss
of control, damage to the equipment, serious injury or death.
Adjust towing speed for terrain and conditions. Be extra cautious
when towing over rough terrain especially railroad crossings.
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CAUTION

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1. Assembly Overview
List of tools needed for assembly:
• Hammer • Needle nose pliers • Box cutters • #2 Phillips screw driver
• 6mm hex key wrench • 8mm driver • 13mm wrench or socket wrench
• 17mm wrench or socket wrench • 19mm wrench or socket wrench
• 22mm and 24mm wrenches or cresent wrench • 28mm socket wrench
Item # Part # Description Qty.
1 100104 Tank & Engine Assembly (22-Ton) 1
100488 Tank & Engine Assembly (27-Ton)
100391 Tank Assembly (28-Ton)
101466 Tank Assembly (35-Ton)
2 100065 Tongue & Stand Assembly (22/27-Ton) 1
100379 Tongue & Stand Assembly (28/35-Ton)
3 100025 Beam & Cylinder Assembly (22-Ton) 1
100471 Beam & Cylinder Assembly (27-Ton)
100180 Beam & Cylinder Assembly (28-Ton)
101435 Beam & Cylinder Assembly (35-Ton)
4 100062 Wheel/Tire Assembly, 4.80 x 8 in. 2
5 100150 Beam Lock Bracket 1
6 100087 Beam Pivot Bracket 1
7 100179 Log Catcher Kit 1
8 100392 Engine/Pump Assembly (28/35-Ton)* 1
*Item not shown
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CAUTION
On pre-filled log splitters, DO NOT
REMOVE the end caps from the
hydraulic hoses until Step 8.

Item # Part # Description Qty.
1 100166 Hardware Kit 1
2 100150 Beam Lock Assembly 1
3 100087 Beam Pivot Bracket Plate 1
4 100063 Hub Cap 2
5 100162 Hub Cap Tool 1
6 100143 Cotter Pin, 1/8 in. x 1-1/2 in. 2
7 100140 Castle Nut, 3/4 in.16 2
8 100142 Flat Washer, 3/4 in. 2
9 100021 Hex Bolt, M12 x 1.75 x 35mm, G8.8 6
10 100023 Lock Washer, M12 8
11 100022 Hex Nut, M12 x1.75, G8.8 8
12 100164 Manual, 22/27/28/35 Ton 1
13 100200 Hex Bolt, M12 x 1.75 x 110mm, G8.8 2
14 100181 Flat Washer, M12 10
6
8
7
4
5
9
2
1
10
11
3
14
13
B
12
Hardware Kit

Item # Part # Description Qty.
1 100157 Log Catcher Grate 1
2 100154 Log Catcher Support Plate 2
3 100155 Log Catcher Mount, Lower 2
4 100152 Log Catcher Mount, Upper 2
5 100165 Hex Bolt M10X1.5 x 30mm, G8.8 8
6 100089 Lock Washer, M10 10
7 100009 Hex Nut M10 x 1.5, G8.8 10
8 100161 Flat Washer, M10 12
9 100064 Button Head Screw, M10 x 1.5 x 30mm, G8.8 2
13
Log Catcher Kit
7
8
4
5
2
6
3
1
9

2. Unpacking the Container
Step 2.1 Remove top and sides of crate
Use a #2 phillips head and 8mm driver to remove hardware from
the plywood shipping crate (shown above). Due to the use of wood
staples, it may be necessary to use a hammer and/or a crow bar to
fully remove the packaging top and sides.
Step 2.2 Remove the log catcher box, wheels and hardware box
from the crate. en remove the Tongue & Stand Assembly from
the crate.
14

2. Unpacking the Container (continued)
Step 2.3 Remove restraining bolts (tee nut bolts) from the beam.
Use a 13mm wrench or socket to remove the two hex
bolts that are securing the beam to the crate bottom (as
shown below). Please note that the two hex bolts are
located diagonally opposed to each other.
15

2. Unpacking the Container (continued)
16
A
A
22-Ton/27-Ton
28-Ton/35-Ton
Step 2.4 Use a 13mm wrench or socket to remove the single
hex bolt that is securing the tank assembly to the crate
bottom (as shown below).
REMOVE
BOLT
REMOVE
BOLT

2. Unpacking the Container (continued)
17
Step 2.6 Remove Tank & Engine Assembly from crate, then
remove the Beam & Cylinder Assembly. Lift Beam &
Cylinder Assembly to its vertical position standing on
the footplate.
A
Step 2.5 Use a 13mm wrench or socket to remove the two hex
bolts that secure the Kohler engine to the crate bottom
(as shown below).
28-Ton/35-Ton ONLY
REMOVE
BOLTS

18
3.Tank and Wheel Assembly
Installing the wheels:
Step 3.1 Remove disposable spindle covers and wheel bearing covers.
Step 3.2 Slide Wheel/Tire Assembly 2 on to the spindle with valve stem
of tire facing outwards.
Step 3.3 Install the Flat Washer, 3/4 in. 3 onto the spindle.
Step 3.4 read the slotted Castle Nut, ¾ in. 4onto the spindle. e
slotted nut should be attached with a 28mm socket tight enough
to eliminate the free-play of the wheel assembly and not tighter.
Make sure the wheels can freely rotate.e Castle Nut needs to be
oriented to allow for the installation of the Cotter Pin, 1/8 in. 5.
Step 3.5 Install the Cotter Pin, 1/8 in. 5 through the Castle Nut, ¾ in. 4
and spindle. Bend pin ends around spindle to secure its position.
Step 3.6 Install the Hub Cap 6using the Hub Cap Tool 7. Gently tap on
the hub cap tool with a hammer to drive the hub cap into place.
Step 3.7 Repeat these steps to install the 2nd wheel.
NOTE: THE 28 AND 35-TON TANK ASSEMBLY
EXCLUDES THE ENGINE. ENGINE INSTALLED
IN STEP 5 OF INSTRUCTIONS
Item # Part # Description Qty.
1 100104 Tank & Engine Assembly (22-Ton) 1
100488 Tank & Engine Assembly (27-Ton)
100391 Tank Assembly (28-Ton)
101466 Tank Assembly (35-Ton)
2 100062 Wheel/Tire Assembly, 4.80 x 8 in. 2
3 100142 Flat Washer, 3/4 in. 2
4 100140 Castle Nut, 3/4-16, Clear Zinc 2
5 100143 Cotter Pin, 1/8 in. x 1-1/2 in. 2
6 100063 Hub Cap 2
7 100162 Hub Cap Tool 1

19
4.Tank & Tongue Assembly
Step 4.1 Attach the Tongue & Stand Assembly 2 to the Tank
& Engine Assembly 1with Hex Bolt, M12 x 1.75 x
1.10mm 3; Flat Washer, M12 4; Lock Washer, M12
5; and Hex Nut, M12 x 1.75 6in two places. Tighten
securely using 19mm socket wrenches.
Item # Part # Description Qty
1 100104 Tank & Engine Assembly (22-Ton) 1
100488 Tank & Engine Assembly (27-Ton)
100391 Tank Assembly (28-Ton)
101466 Tank Assembly (35-Ton)
2 100065 Tongue & Stand Assembly (22/27-Ton) 1
100379 Tongue & Stand Assembly (28/35-Ton) 1
3 100200 Hex Bolt M12 x 1.75 x 1.10mm, G8.8 2
4 100181 Flat Washer, M12 10
5 100023 Lock Washer, M12 8
6 100022 Hex Nut, M12 x 1.75, G8.8 8

20
Item # Part # Description Qty.
1 100505 Tank Assembly (28-Ton) 1
101466 Tank Assembly (35-Ton)
2 100392 Kohler Engine, 17.5 GPM Pump 1
3 100135 Suction Line Tube, Wire Reinforced 1
4 100138 Hose Clamp, 15/16 in. to 1-1/4 in. 2
5 100129 Hex Bolt, M8 x 45mm, G8.8 4
6 100130 Flat Washer, M8 8
7 100162 Hex Nut, Nylock, M8 x 1.25, G8.8 4
5.Tank and Engine Assembly (28/35-Ton ONLY)
Step 5.1 Remove Engine Bolts 5 from tank.
Step 5.2 Place Engine 2 on tank.
Step 5.3 Secure Engine on Tank 1 in 4 places with Hex Bolt, M8 x 45mm, G8.8 5,
Flat Washer, M8 6 and Hex Nut, Nylock, M8 x 1.25, G8.8 7.
Step 5.4 Attach Suction Line Tube 3 to Pump.
Step 5.5 Fasten the Suction Line Tube to the Pump Assembly with Hose Clamp 4.