Timberwolf TW-2HD User manual

OPERATOR’S
OPERATOR’S
MANUAL
MANUAL TW-2HD, TW-5, TW-6
Log Splitters
www.timberwolfcorp.com

TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL
TW-2HD, TW-5, TW6
Log Splitter Operation Manual
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This manual and all its contents Copyright © 2017
Timberwolf Firewood Processing Equipment
Record your log splitter ID numbers here:
Model # ___________________________________________ Serial # __________________________________________
Engine # __________________________________________ VIN # ___________________________________________

Timberwolf Firewood Processing Equipment
2235 Clarks Corners Road
Marathon, NY 13803
Toll Free: 800-340-4386
Phone: [phone]
FAX: [phone]
E-mail: [email protected]
www.timberwolfcorp.com
©Timberwolf is a trademark of Timberwolf Firewood Processing Equipment. All other brands or product names are
trademarks or registered trademarks of their respective holders.
©Timberwolf Firewood Processing Equipment 2017. Printed in the USA
No part of this work covered by copyright may be reproduced in any form. Reproduction, adaptation, or translation without prior written
permission is prohibited, except as allowed under the copyright laws.
Timberwolf Firewood Processing Equipment provides this document “as-is” without warranty of any kind, either expressed or implied.
This includes, but is not limited to, implied warranties or conditions of merchantability or fi tness for a particular purpose. Timberwolf
Firewood Processing Equipment shall not be liable for any errors or omissions that may occur in this document, nor for incidental or
consequential dam ages of any kind resulting from the furnishing, performance, or use of this document.
The information in this document refl ects current or planned product features, functions, and characteristics as of the publication date.
Because of on-going product improvements and feature additions, information in this document is subject to change without notice.
Revised September 15, 2017
Every eff ort has been made to ensure the accuracy of this document.
TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT

TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL
Read Entire Manual Before Operating the Log Splitter
Safety Note
Please take time to read this manual and learn how to operate and maintain the log splitter safely. If you have any
questions regarding assembly, use, safety, or maintenance, please call Timberwolf at 1-802-775-4227. The log
splitter is a powerful piece of equipment that can generate more than 50,000 pounds of force. Incorrect use of the
log splitter can cause serious injury or death.
About This Manual
Thank you for buying a Timberwolf log splitter. This machine is made with high quality components and will provide years of service
under normal working conditions.
Please study this manual before operating the unit as it contains important information relating to safety, operation and maintenance.
Timberwolf Firewood Processing Equipment strongly suggests you keep it safely stored.
If you have questions regarding anything outlined in this manual, please call Timberwolf at 1-802-775-4227.

Caution! Residual Hydraulic Energy!
Residual energy must be released from the pressurized hydraulic fluid before any maintenance or repair
work is done on the log splitter. Hydraulic fluid can remain highly pressurized even while the splitter’s
motor is off. Escaping pressurized hydraulic fluid can penetrate skin and cause serious injury.
To release residual hydraulic energy:
1. Shut off engine
2. Move control valve back and forth, from one limit of travel to the other, at least four times
3. Hold valve for three seconds at each limit of travel
TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT

Safety
General Safety Instructions ................................................1-8
Decal Locations .....................................................................9
Features
General Description and Features .................................. 10-11
Two Stage Hydraulic Pump ................................................. 12
Single Handle Valve (TW-2HD) ...........................................12
Wedges................................................................................ 12
4-Way Slip-on Wedges ........................................................13
6-Way Slip-on Wedge .......................................................... 13
Hydraulic Wedge Lift............................................................14
Optional Table Grate ............................................................14
Log Cradle ...........................................................................14
Optional Hydraulic Log Lift .................................................. 15
Features .............................................................................. 16
Before You Start
Operational Placement of the Log Splitter ........................... 17
Attaching the Table Grate ....................................................18
Check All Fluids................................................................... 18
Operating Instructions
Starting and Using the Splitter..............................................19
Using the Log Lift.................................................................20
Wedge Lift Operation ...........................................................20
TW-2HD Single Handle Control...........................................21
Transporting the Log Splitter...........................................22-24
Maintenance
Daily Maintenance ...............................................................25
General Maintenance .....................................................25-26
Hydraulic Oil Filter ...............................................................26
Wedge .................................................................................27
Wheel Bearings ...................................................................27
Hydraulic Control Valve Maintenance...................................27
Specifi cations .......................................................................... 28
Limited Warranty ................................................................29-30
Maintenance Log .....................................................................31
Table Of Contents
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL

Read this entire manual before starting or operating this
log splitter! Failure to do so could result in serious injury
or death!
Attention Rental Companies
It is extremely important that you familiarize operators with the following safety instructions and that you keep a
manual with the machine at all times. Require all users to read the manual before operation and are aware of all
warnings and hazards.
High Pressure Warning!
Escaping hydraulic fl uid can penetrate skin and cause
serious injury!
Caution! Residual High Pressure Hydraulic Energy
Your log splitter has been tested at the factory and is delivered to you ready to run. That means that there may be
residual pressure in the hydraulic system. If for some reason you need to perform any maintenance or repair to the
machine, you must release that pressure before any work can begin. Please refer to page 7 for instructions.
Safety
1
TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT

2
General Use:
This machine was designed to split logs into fi rewood only. Timberwolf strongly recommends that this machine not be
modifi ed and/or used for any application other than that for which it was designed. If you have any questions relative to
a particular application, do not use the machine until you have fi rst contacted Timberwolf or an authorized Timberwolf
dealer to determine if modifi cations can or should be performed on the product.
• Only qualifi ed personnel, 18 years and older, may operate the log splitter and ONLY after reading this manual.
Operators who are improperly trained or unfamiliar with this log splitter risk serious injury to themselves and the
equipment
• Before operating this log splitter, the user must become familiar with proper emergency shut down procedures
• Do not stand on any part of the machine while it is running, for any reason; pinching or crushing injury is possible
• Never operate the log splitter while under the infl uence of alcohol or drugs
• Never touch parts of the engine as burns can result
• Never operate the machine indoors or without adequate ventilation. Ensure that plenty of fresh air is available.
Failure to do so could result in carbon monoxide poisoning
• You should always wear eye protection, hearing protection, snug fi tting work gloves (loose gloves and clothing
increase risk of snagging) and steel toed boots when you operate or work near this machine
Safety
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL

Safety
Drawing In/Trapping Hazard
Drawing in/trapping points exist where objects are pulled into equipment, e.g., when a log drops onto the log cradle
from the log lift. Machines are stronger and faster than people; always stop the equipment before attempting to remove
an item that is stuck. Remember, guards cannot be provided for all situations and equipment must be able to function
in the capacity for which it was designed.
Impact Hazard
Impact hazards can be broken down into two categories: forceful collision and contact. The fi rst type of impact hazard,
forceful collision, is the result of machinery or processes where any movement of tools, machine elements or particles
could impact an operator. The second type of impact hazard, contact, refers to the movement of personnel that could
result in collision with stationary or moving objects. For example, an operator could collide with a part of the log splitter
while handling wood in preparation to splitting. Guarding may not be feasible for these types of hazards. Be aware
of your surroundings, never place yourself in a situation where you are in the path of a moving piece of
equipment.
Burn Hazard
The potential for burns exist in and around the engine. Be careful not to touch any of these surfaces, which are
covered in the manufacturer’s safety warnings. Read the engine manufacturer’s warnings and follow their instructions
carefully.
3
TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT

4
Safety
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL
Fire Hazard - Flammable
• Since this machine uses a gasoline powered engine, there is a risk of fi re. Read and follow all safety
precautions outlined by the engine manufacturer or fi re and serious injury may result
• Store fuel and oils in an approved fl ammable liquid storage container
• Dispose of waste liquids, spill-cleaning material and oil-soaked rags in an appropriate covered fi reproof
container(s) located at least 25 feet from the log splitter
• Only use dry powder, foam, or CO2 type fi re extinguishers on or near the log splitter
• Never use water to extinguish any gasoline or oil fi re
Moving the Log Splitter
• Only use suitable rated transport devices to move your log splitter
• The log splitter is heavy and requires the proper equipment to lift or move. Observe proper procedures
for lifting and/or moving the log splitter
• Wear steel-toed boots when moving or operating the log splitter
Residual Risk
Residual Risk is defi ned as the portion of risk that remains after all safety measures have been taken.
Although we have taken extensive measures to protect the operator and/or maintenance personnel from
injury, all hazards cannot be removed. This manual provides graphical illustrations to aid in identifying
potentially hazardous areas associated with your Timberwolf log splitter.

Safety
Crushing Hazard
Crush points are created when two moving objects move towards each other or when one object moves
towards a stationary object. For example, the push block moving towards the splitting wedge.
To prevent being crushed or pinned, learn to recognize and avoid potentially dangerous situations.
Shear Hazard
Shear points are hazardous because of their cutting force and they often move so rapidly that they may not
be visible, so it is easy to forget they are there. For example, shear points are created when the edges of two
moving objects move close or across one another with enough speed or force to cut a soft material. Because
some shear points cannot be guarded, it is important to be aware of their potential hazard and stay alert during
operation.
Entanglement Hazard
Rotating shafts are the most common source of entanglement accidents, although any exposed machine part
that rotates can be a potential entanglement hazard. A cuff , sleeve, pant leg, long hair, or just a thread can
catch a rotating shaft and result in serious injury or death. Entanglement with a wrap point can pull you into the
machine, or clothing may become so tightly wrapped that you are crushed or suff ocated. In other cases, you
could be thrown off balance and fall into other machine parts. Even a perfectly round shaft can be hazardous
if there is enough pressure to hold clothing against the shaft. Hazards increase with shafts that are not round.
Ends of the shafts that protrude beyond bearings are also dangerous. Check all equipment for potential
entanglement points and be alert to their potential danger.
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TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT

6
Safety
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL
Log Handling
• ALWAYS grasp logs in the middle and NOT by the ends
• NEVER put anything into a partially split log as it may close suddenly and
eject or pinch the item
• NEVER put anything between the log and cradle
• NEVER climb over or straddle the splitter
General Warnings for Safe Splitter Operation
Always do the following:
• Read this manual before using the log splitter
• Locate the log splitter only on firm level ground
• Site must provide solid footing for operator (not slippery underfoot)
• Site must be free of tripping hazards (stumps, roots, stones, debris, etc.)
• Wear goggles or face shield and always use appropriate hearing and foot protection
• Keep away from the splitting area and push block while operating
• Stand ONLY in the operator area when operating the splitter

Safety
General Cautions
• NEVER split anything other than wood logs
• DO NOT move or reposition the log splitter when the engine is running
• DO NOT alter or modify the log splitter in any way
• DO NOT operate the log splitter with another person - one person operation only
• Only one person must position the logs and operate the controls
• Keep all bystanders at least 10 feet away from the log splitter
• NEVER operate the log splitter if you are under the infl uence of drugs, alcohol or medication or when you are tired
• DO NOT allow an untrained person to operate the log splitter
• DO NOT allow anyone under the age of 18 to operate the log splitter
• DO NOT leave the machine unattended with the engine running
What You SHOULD Do
• Inspect hydraulic hoses every day – check for worn, frayed, kinked, and cracked areas
• Replace any damaged or worn hoses
• Use sheet of cardboard or piece of wood to check for hydraulic leaks while system is running
• Depressurize system to release residual hydraulic energy before starting any repairs
1. Shut off splitter engine
2. Move control valve handle back and forth, from one limit of travel to the other, at least four times
3. Hold valve for three seconds at each limit of travel
• Contact Timberwolf or an authorized Timberwolf dealer to replace worn components
7
TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT

8
Safety
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL
What You SHOULD NOT Do
• Never split anything other than logs
• Don’t handle logs by their ends when you position them
• Never place your hands at pinch points where they can get caught between a log and the wedge,
push block, or log cradle
• Don’t put any part of yourself, your clothing, or your personal protective equipment into a crack in a log
that’s being split. It might close suddenly and with great force
• Don’t put anything between the log cradle and the side of a log. Logs spread as they’re forced against the wedge
• Do not straddle or climb over the log splitter at any time
• Do not move or reposition the log splitter with the engine running
• Do not modify or alter the machine in any way, at any time
• Never team up with another person to operate the log splitter – it’s a one-person job
• Never operate log splitter under the infl uence of alcohol, drugs, or medication
• Never allow an untrained operator to use the log splitter
• Never allow anyone under age eighteen to operate the log splitter
• Never leave log splitter unattended with its engine running
• Never remove cap from hydraulic tank while engine is running or while tank is still warm after engine is shut off. Hot pressurized
oil can cause serious injury, so wait for hydraulic tank to cool, then release residual energy before removing cap (see page 30)
• Never use any connectors, valves, or fittings that are different from the ones originally installed on the log splitter

Safety
9
TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT
Decal Locations
18
29
310
411
512
TW-2HD
TW-5
TW-6
6
7
1
2
3
4
5
6
7
8
9
10
11
12
6

10
Features
Features: TW-2HD, TW-5, TW-6 Log Splitters
The drawings on this page and
the next identify various log splitter
components by the names used
throughout this manual.
Operator Zones identify areas
to stand in while operating the
log splitter and log lift. DO NOT
reach across to the controls from
anywhere else. Go around the
trailer hitch to move between
Operator Zones.
General Description and Features
(Continued on next page)
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL

Features
11
TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT
This is a typical side view of a Timberwolf log splitter.
General Description and Features (Continued)

12
Features
• Timberwolf log splitters feature a two-stage hydraulic pump
• Pump normally moves the push block at high speed with low force
• Pump shifts automatically to low speed and high force when the push block encounters more resistance
• Pump may shift two or three times while splitting some logs
Note
If the two-stage hydraulic pump stays in one stage all the time, contact your local dealer or other authorized Timberwolf service facility.
Two-Stage Hydraulic Pump
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL
Single Handle Valve
1. To split log, move the valve handle toward the wedge and hold it until the log is split
2. Move the valve handle away from the wedge into detent position and release it for
the return stroke
Wedges
All Timberwolf log splitters have a permanently installed, single-blade, fi xed wedge. The fi xed wedge splits logs into two pieces. There
are also two slip-on wedges and a wedge lift feature available for greater versatility and control.
Note
Do not use a slip-on wedge for splitting logs that have more than one knot or that have twisted grain. Knotty or twisted logs increase
stress on the slip-on wedge, and may displace or damage it.

Features
6-Way Slip-on Wedge
Splits log into six pieces with one thrust of the ram.
• For use on log splitters with a 5 inch or larger hydraulic cylinder
• Optional on TW-5 and TW-6 log splitters
• Not available on TW-2 HD log splitter
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TIMBERWOLF FIREWOOD PROCESSING EQUIPMENT
• Splits log into quarters on each cycle
• Vertical wedge/mounting sleeve slides over the log splitter’s permanently installed single wedge
• Horizontal wedge height should be close to center of log
• Choose low or high horizontal wedge position by turning over the slip on 4-way wedge
• Low or high position aff ects range of heights available with wedge lift
• Low or high position is the 4-way wedge’s only adjustment on a TW-2HD log splitter without a wedge lift (see illustration on next page)
• 4-way wedge is standard on TW-5, and TW-6 log splitters
• 4-way wedge is optional on the TW-2 HD log splitter
4-Way Slip-on Wedge

14
Features
Hydraulic Wedge Lift
Moves slip-on wedge up and down.
• 4 inches of vertical travel to adjust wedge height close to center of log
• One-lever hydraulic control
• Standard on TW-5, TW-6 log splitters
• Optional on TW-2 HD log splitter
TW-2HD, TW-5, TW-6 OPERATOR’S MANUAL
Optional Table Grate
• Tubular steel grate mounts behind wedge
• Enables convenient repositioning for second pass on large pieces
• Chips and debris fall through, providing cleaner fi nished product
• DO NOT transport the splitter with the Table Grate installed
Log Cradle
• Steadies log on beam
• Standard on all log splitters
• Heavy duty bolt-on cradle panels
• Two panels, one on each side of beam, when log lift not installed
• One panel opposite installed log lift