Page 1
Timber Ax
Skid-steer Mounted Tree Shredder
43AXH 53AXH 63AXH 73AXH 83AXH
Operator’s Manual & Parts Book
(2004)
Model Number: _________________
Serial Number:
Date of Purchase: ________________
Specialized
Equipment, Inc.
650 So. Main Street - PO Box 337 - Hector, MN 55342
Business Phone: 320-848-6266 * Fax: 320-848-6269 * Toll Free: 1-800-828-7624
01-100 Thru 01-168
N14867 January, 2004
Page 2
LOFTNESS SPECIALIZED EQUIPMENT, INC.
WARRANTY POLICY
The warranty policy begins upon delivery of the unit to the original customer.
Loftness one (1) year warranty policy covers only the Crop Shredders, Snowblowers, Kwik-Piks, and Sod Unrollers.
Loftness six (6) month warranty policy covers Timber Axes, Brush Shredders, Flail Mowers, and BPOs.
If any Loftness product is used as a rental unit, the warranty period extends for only 30 days from the delivery date to the
original customer.
Loftness Specialized Equipment, hereinafter referred to as LOFTNESS, a manufacturer of quality machinery since 1956, warrants new
LOFTNESS machinery and/or attachments at the time of delivery to the original purchaser, to be free from defects in material and
workmanship when properly set up and operated in accordance with the recommendations set forth in the LOFTNESS Operator’s
Manual.
LOFTNESS’ liability for any defect with respect to accepted goods shall be limited to repairing the goods at an authorized dealer or
other LOFTNESS designated location, or replacing them as LOFTNESS shall elect. The above shall be in accordance with
LOFTNESS warranty adjustment policies. This warranty shall not apply to any machine or attachment which shall have been repaired
or altered outside the LOFTNESS factory or authorized LOFTNESS dealership or in any way so as in LOFTNESS’ judgment, to
affect its stability or reliability, nor which has been subject to misuse, negligence or accident, nor to any machine or attachment which
shall not have been operated in accordance with LOFTNESS’ printed instructions or beyond the company recommended machine
rated capacity.
WARRANTY REQUIREMENTS
Warranty registration form must be filled out and returned to Loftness Specialized Equipment to validate all future warranty
claims.
LIMITATIONS OF WARRANTY
All Shredders – LOFTNESS shredders are designed to provide years of dependable service when proper use and maintenance is
adhered to. The potential for misuse in many applications exists, therefore a limited warranty is provided as follows:
All Shredders – Rotor Balance: Critical rotor balance can be affected by conditions beyond LOFTNESS’ control, such as the operation
of a shredder beyond the Company’s rated capacity, improper knife replacement, missing knives, striking foreign objects, lack of
lubrication, etc. Any failure resulting from running in as “out-of-balance” condition, such as, but not limited to bearing and or driveline failure, metal fatigue, cracks, etc. will be considered abuse and will not be covered under warranty. LOFTNESS may elect to have
an area representative evaluate the condition of the machine before warranty is considered.
To receive a warranty claim, a return authorization from LOFTNESS must be obtained. The failed part may then be returned in an
untampered status. This warranty does not include freight or delivery charges incurred when returning machinery for servicing. Dealer
mileage, service calls and pick-up/delivery charges are the customer’s responsibility.
EXCLUSIONS OF WARRANTY
Except as otherwise expressly stated herein, LOFTNESS makes no representation or warranty of any kind, expressed or implied, and
makes no warranty of merchantability in respect to its machinery and/or attachments and makes no warranty that its machinery
and/or attachments are fit for any particular purpose. LOFTNESS shall not be liable for incidental or consequential damages for any
breach of warranty, including but not limited to inconvenience, rental or replacement equipment, loss of profits or other commercial
loss. Upon purchase the buyer assumes all liability, all personal injury and property damage resulting from the handling, possession or
use of the goods by the buyer.
No agent, employee, or representative of LOFTNESS has any authority to bind LOFTNESS to any affirmation, representation or
warranty concerning its machinery and/or attachments except as specifically set forth h
erein.
February, 2004
Page 3
Owner’s Manual (Timber Ax)
Skid-steer Mounted Tree Shredder
Table of Contents
Section 1 - Safety Page
Safety Instructions ..............................................................................................................................................................1-1
Safety Instructions for Operation......................................................................................................................................1-2
Section 2 - Operating
Operating Instructions ........................................................................................................................................................2-1
Set-up.....................................................................................................................................................................................2-1
Section 3 – Maintenance
Lubrication............................................................................................................................................................................3-1
General Service..................................................................................................................................................................... 3-1
Storage ...................................................................................................................................................................................3-2
Trouble Shooting ................................................................................................................................................................. 3-3
Torque Chart ........................................................................................................................................................................3-4
Section 4 – Service Parts
Service Parts Ordering.........................................................................................................................................................4-1
Return Policy ........................................................................................................................................................................4-1
Decals.....................................................................................................................................................................................4-2
Parts Lists and Drawings ....................................................................................................................................................4-5
Page 4
Specialized
Equipment, Inc.
650 So. Main St. - PO Box 337 - Hector, MN 55342
Business Phone: 320-848-6266 * Fax: 320-848-6269 * Toll Free: 1-800-828-7624
Dear Customer:
Thank you for your decision to purchase a Timber Ax Skid-steer Mounted Tree Shredder from Loftness
Specialized Equipment, Inc. It has been designed to provide years of profitable and dependable service. To
insure maximum performance of your shredder, it is mandatory that you thoroughly study the owner’s manual
and follow its recommendations. Proper operation and maintenance are essential to maintain and maximize the
life of the machine and to prevent damage or injury.
It is the owner’s responsibility to:
*Operate and maintain this shredder in a safe manner and in accordance with all
applicable local, state, and federal codes, regulations and/or laws, and in
compliance with on-product labeling and these instructions.
*Make sure that all personnel have read this owner’s manual and thoroughly
understand safe and correct operating, installation, and maintenance procedures.
*Provide impact-resistant shielding on the power unit to protect the operator from
the possible dangers of flying debris.
*Make sure the shredder is set-up correctly before being placed in service. It should
be serviced at regular intervals thereafter, in accordance with procedures outlined in
this manual.
*Fulfill all warranty obligations so as not to void the warranties. The warranty
section at the beginning of this manual outlines the warranty policy of Loftness
Specialized Equipment, Inc.
Loftness Specialized Equipment, Inc. reserves the right to make product improvements to the equipment at any
time.
We welcome you to the satisfied family of Loftness equipment owners.
Gloria Nelson, President
Steve Nelson, Vice-President
Dave Nelson, Vice-President
Page 5
Section
1
Safety
Page 6
WARNING
Because of the potential safety hazard to eyes from
hydraulic leaks and/or flying debris, “USE OF
PROTECTIVE EYEWEAR IS ABSOLUTELY
MANDATORY” for operator and others in the work
area.
Due to the possible danger of flying debris, it is
“ABSOLUTELY MANDATORY that IMPACTRESISTANT SHIELDING” be provided on the
power unit to protect the operator. The owner is
responsible for providing the operator protection
devices on the power unit.
Page 7
Owner’s Manual (Timber Ax)
Safety Instructions
Safety First
Accidents can be prevented by recognizing the
causes or hazards before an accident occurs, and
doing something about them. Read this manual
carefully and become familiar with the controls and
proper use of the machine. Know how to stop the
unit by disengagement of the controls. Be sure the
operator knows how to exercise the mandatory
shut-down procedure.
Regardless of the care used in the design and
construction of this equipment, there are some areas
that cannot be safeguarded without interfering with
accessibility and efficient operation.
These message alert symbols, shown below, are
intended to identify and provide information that
must be heeded for proper safe operation of the
equipment and to prevent damage or deterioration
of the equipment. In this manual and on labels used
on this flail mower the words “Danger”, “Warning”,
and “Caution” are used to indicate the following:
The following safety information is a general
overview of precautions that should be adhered to:
1. Read this manual carefully. Become
thoroughly familiar with the controls
and proper use of the machine. Insure
that all operators know how to stop the
unit by disengagement of the controls
using the “Mandatory Shut-Down
Procedure” (page 1-2 Section 1).
2. Remember, it is the owner’s
responsibility for communicating all
information on the safe use and proper
maintenance of this machine.
3. Never allow children to operate
equipment. Allow adults to operate the
equipment only after receiving the
proper instructions. Keep the area of
operation clear of all unauthorized
persons.
4. Remove from area of operation all
foreign objects such as sticks, wire,
rocks, etc., that might become tangled in
the rotor, causing damage to the mower
DANGER - (white lettering on red
background) Warns of an
immediate hazard which, if
not avoided, will result in
severe personal injury or
death.
or thrown from the mower striking
other objects.
5. Never attempt to make any adjustments
while the engine is running or the key is
in the “ON” position of the skid-steer
loader. Before leaving the operator’s
WARNING - (black lettering on orange
background) Refers to a
potentially hazardous
situation which, if not
avoided, could result in
severe personal injury or
death.
Safety Instructions for Operation and
position, disengage power to the mower
and remove ignition key.
6. Disengage hydraulic valve and place
skid-steer controls in neutral or park
before starting engine.
Maintenance
CAUTION - (black lettering on yellow
background) Refers to a
potential hazard or unsafe
practice which may result
in minor personal injury.
The following safety warnings are used here and on
the brush shredder. Become familiar with them
before operating this machine.
N14867 1 - January, 2004
1
Page 8
Owner’s Manual (Timber Ax)
Safety Instructions for Operation and
Maintenance Continued:
• Keep children, spectators and other workers off
and away from the machine while it is operating
or engine is running. Do not carry passengers.
Mandatory Shut-Down Procedure:
• Move throttle to idle position.
• Disengage all power to the brush shredder.
• Shut off engine and remove the key.
• Wait until the rotor has stopped completely
before inspecting the unit.
• Before inspecting, cleaning, lubricating,
adjusting or servicing any part of the brush
shredder, always exercise the “Mandatory
Shut-Down Procedure” (page 1-2 Section 1).
After service has been performed, be sure to
restore all guards, shields and covers to their
original position.
• Read and observe all warnings decals on the
machine before attempting to operate the brush
shredder. Do not attempt to operate this
machine unless all factory devices and decals are
in place. Keep safety decals clean of dirt and
CAUTION:
• Failure to follow safety, operating, and
maintenance instructions could result in death or
serious injury to the operator or bystanders,
poor operation, or costly breakdown.
• Become familiar with and know how to use all
safety devices and controls on the brush
shredder before attempting to operate the unit.
Know how to stop the unit before starting it.
• Repeated impact of the knives with hard objects
can cause excessive wear and damage to the
skid-steer or shredder. Be sure to maintain
recommended ground clearance as specified in
this manual.
• Should excessive vibration occur, disengage the
hydraulic valve immediately and shut off skidsteer. Do not continue to operate the machine
until the problem has been determined and
corrected.
• Do not start, operate, or work on this machine
until you have carefully read and thoroughly
understand the contents of this manual, the
operator’s manual for your loader, and the EMI
skid-loader safety manual provided with the
brush shredder.
N14867 1 - January, 2004
2
grime. Keep all guards, shields and decals in
place.
• The operator must not use drugs or alcoholic
drinks which would impair his alertness or
coordination while working. An operator who is
taking prescription drugs must get medical
advice to determine if he can safely operate a
machine.
• Stay alert for hidden hazards or traffic.
• Before using a brush shredder on a new job site,
check the rules and regulations at the location.
The rules may include an employer’s work safety
requirements.
• Never operate the brush shredder without good
light and visibility.
• Make sure all controls, (levers, pedals and
switches), are in NEUTRAL position before
starting the loader engine.
• To prevent serious personal injury from
escaping high pressure fluid, never attempt to
inspect, service or disassemble any part of the
hydraulic system until all pressure has been
relieved from the system. Do not use your
hands to check for hydraulic leaks.
Page 9
Owner’s Manual (Timber Ax)
Safety Instructions for Operation and
Maintenance Continued:
• Do not operate the mower above the rated
RPM.
WARNING:
• Keep all guards, shields and decals in place.
• Always repair or replace any damaged front
guard chains.
• Keep hands, feet and clothing away from
moving components.
• Do not wear loose or baggy clothing around
rotating machinery. Machine must be clear of
people, tools, and other objects before engaging
hydraulic valve.
DANGER:
• DANGER: Before leaving the operator’s
position for ANY reason or allowing anyone
near the brush shredder, always exercise the
following “Mandatory Shut-down
Procedure” ( page 1-2 Section 1).
Operation Safety:
Because this machine will be operated in a
potentially hazardous environment, it is
ABSOLUTELY MANDATORY that you read
and follow these safety precautions.
• Before working under any hydraulically
controlled implement, be certain it is securely
blocked!
• Because of the potential safety hazard to eyes
from hydraulic leaks and/or flying debris, USE
OF PROTECTIVE EYEWEAR IS
ABSOLUTELY MANDATORY for operator
and others in the work area.
• Always use an approved roll bar and seatbelt for
safe operation. Overturning a loader without a
roll bar and seatbelt can result in injury or death.
• Use the handholds and step plates when getting
on and off the loader to prevent falls. Keep
steps and platform cleared of mud and debris.
• Operate the brush shredder only from the
operator’s seat.
• Keep your feet on the pedals, (floor plates) seat
belt fastened snuggly and seat bar lowered, (if
equipped), when operating the brush shredder.
• Never operate the brush shredder in a lifted
position. Work only on the surface that the
loader is standing on.
N14867 1 - January, 2004
3
WARNING:
• Stay alert for hidden hazards or traffic. Do not
carry passengers.
• Never operate the shredder without good light
or visibility.
• After striking a foreign object, be sure to
exercise mandatory shut-down procedure.
Thoroughly inspect shredder for any damage
before restarting and operating the shredder.
• Repeated impact of knives with ground or hard
objects can cause excessive wear and damage to
the skid-steer or mower. Be sure to maintain
recommended ground clearance as specified in
this manual.
• Should excessive vibration occur, disengage
hydraulic valve immediately. Do not continue
operation of shredder until the problem has
been detected and corrected. Be sure to exercise
the “Mandatory Shut-Down Procedure”.
• Disengage power to shredder when transporting
or not in use.
Page 10
Owner’s Manual (Timber Ax)
Operation Safety Continued:
• When transporting the shredder on the road at
day or night, provide adequate warning to the
operators of other vehicles.
• Never park on a steep incline.
• Do not leave equipment in raised position.
• Due to the possible danger of flying debris,
impact-resistant shielding must be provided for
the operator. The owner is responsible for
providing the operator protection devices on the
power unit.
• DO NOT allow ANY people or animals within
1000 feet of the work area while operating this
machine.
• THOROUGHLY clear the work area of ALL
foreign objects such as bottles, rocks, wire, etc.
before starting shredder.
• ALWAYS operate shredder level with the
ground (front to rear).
• NEVER operate shredder over 2 feet above the
ground.
• When high pressure fluid escapes, it can be
almost invisible, yet have enough pressure to
penetrate the skin and enter the blood stream.
Never attempt to use hands to search for
suspected oil leak. If injured by escaping fluid,
consult a doctor at once! Serious reaction or
infection can occur if proper medical treatment
is not obtained immediately.
• Always cut in an up and down direction on
slopes. To avoid loss of control and to prevent
overturn, never cut across the slope.
• Reduce speed when turning.
• Do not operate on extremely steep slopes.
• Before servicing or adjusting the shredder, or
removing material from it, be sure to exercise
the “Mandatory Shut-Down Procedure”
(page 1-2 Section 1).
• Be sure the rotor has stopped completely before
checking knives.
• Be especially careful not to touch attachment
parts which might be hot from operation.
Allow such parts to cool before attempting to
maintain, adjust, or service.
DANGER:
• Never get off skid-steer while it is in motion!
• Keep hands and feet out! Do not step on or
climb over the unit while machine is in
operation, or engine is running. Do not carry
passengers.
WARNING:
• Never operate the shredder without guards,
shields, plates or other safety precaution devices
in place. Shields are for your protection, please
keep all shields in place.
N14867 1 - January, 2004
4
Page 11
Section
2
Operating
Page 12
WARNING
Because of the potential safety hazard to eyes from
hydraulic leaks and/or flying debris, “USE OF
PROTECTIVE EYEWEAR IS ABSOLUTELY
MANDATORY” for operator and others in the work
area.
Due to the possible danger of flying debris, it is
“ABSOLUTELY MANDATORY that IMPACTRESISTANT SHIELDING” be provided on the
power unit to protect the operator. The owner is
responsible for providing the operator protection
devices on the power unit.
Page 13
Owner’s Manual (Timber Ax)
Operating and Set-up Instructions
Operating:
The Loftness hydraulic brush shredder is an
effective, reliable machine used for maintaining
grass, weeds and brush up to 1-1/2” in diameter
continuous duty and up to 6” in diameter
intermittent duty. For best results, operate the
machine as low to the ground as possible without
the blades striking ground or other obstructions.
Lifting or tilting the shredder increases the risk of
flying debris. Because of the high speed of the
blades, the life of the blade will be reduced if it is
operated in rocky terrain or in areas where many
obstacles are present. Areas to be mowed should be
free of debris such as rocks, bottles, large branches
etc. The blades cut and pulverize the grass, weeds
and brush. The shredder deposits cut material over
the entire width-of-cut, which eliminates bunching
or windrowing behind the machine.
The shredder rotor is equipped with two rows of
stationary cutting knives, plus an adjustable cutter
bar that restricts the feed rate of the material being
shredded. This is located behind the deflector in the
cutting chamber and preset at 1/8” clearance for the
slowest feed rate to lower power requirements. The
more powerful systems can use a wider opening to
increase the feed rate (see page 4-5 Section 4).
The Loftness Hydraulic Brush Shredder can be
attached to any skid-steer with an auxiliary hydraulic
system of 21 - 54 GPM, which has a standard
universal skid steer hitch.
Operating Speed:
Various mowing conditions, and desired finishedcut appearance, will determine proper ground speed.
Heavy brush will require a forward stop and go
movement to allow the shredder to properly mow
the brush.
WARNING:
Do not operate the shredder above the rated
RPM. Check with your Loftness dealer to be
sure your shredder is set-up with the correct
hydraulic motor to match the hydraulic flow
(Gallons per Minute) of your loader.
WARNING:
Flying debris can gather on the skid-steer
and needs to be cleaned off, especially
around the radiator and oil cooler screens,
engine compartment and exhaust areas.
Periodic cleaning will prevent the possibility
of fire.
Equipment Set-up:
Attachment to Loader Using Standard Universal
Mounting Plate:
• Pull the attachment-locking levers all the way
up.
• Tilt the loader-mounting plate ahead. Drive
forward with the loader and hook the top edge
of the mounting plate under the flange on the
brush shredder mount. Be careful not to
damage the locking levers on the loader-
mounting plate.
• Tilt the loader-mounting plate back until you
feel the weight of the brush shredder transfer to
the loader tires, but do not lift the attachment
off the ground. Stop the engine.
WARNING:
Before you leave the operator’s seat: Lower
the lift arms, put the attachment on the
ground. Stop engine and remove ignition
key. Engage the parking brake.
N14867 2 - January, 2004
1
Page 14
Owner’s Manual (Timber Ax)
Operating and Set-up Instructions Continued:
Equipment Set-up Continued:
• Push locking-levers down into the locked, over-
center position.
WARNING:
Locking-wedge pins must extend through
the holes in attachment-mounting plate.
Levers must be fully down in the locked
over-center position. Failure to secure
wedge pins can allow attachment to come
off, causing serious injury or death.
• Connect hydraulic quick-couplers from flail
mower to auxiliary hydraulic outlets on loader.
Belt Tension:
The rotor drive belts should have 1/2” maximum
deflection at the midpoint between the pulleys.
N14867 2 - January, 2004
2
Page 15
Section
3
Maintenance
Page 16
Page 17
Owner’s Manual (Timber Ax)
Maintenance
Lubrication:
The operation and component lifetimes of this
machine are very dependent on regular and proper
lubrication. The frequency of lubrication
recommended is based on normal conditions.
Severe or unusual conditions may determine actual
service requirements.
Replace any broken or missing grease fittings. Be
sure to clean fittings before greasing.
NOTE: Rotor bearings cannot be damaged by
over-greasing. Grease bearings until a small amount
of grease is purged from the bearing.
The following items require lubrication every (8)
hours of running time:
A) Rotor bearings - located on each end of
machine and on the driveline side,
located under belt cover.
The following items require lubrication every (25)
hours of running time:
A) Belt idler bracket - located under belt
cover.
B) Drive pulley shaft bearing - located
under belt cover, behind drive pulley.
General Service
When reassembling components, always use new
lock nuts and a thread-locking compound to insure
against vibration loosening. Use an anti-seize
compound on all bearing/shaft contacts.
Knife Replacement:
When the knives become dull or broken, they must
be replaced. If a knife is replaced, the knife on the
opposite side of rotor must be replaced to maintain
the balance.
1) Refer to page 4-8 in Section 4 for an illustrated
parts listing.
2) Remove the 5/8” UNF bolt, lock nut and knife.
3) Install new knives (bolt must be inserted
through the knife mount from the rotor side to
allow the nut to be on the outside).
4) Apply a thread-locking compound to the nut
and tighten to torque values listed in chart.
Belt Removal:
1) Refer to page 4-7 in Section 4 for an illustrated
parts listing.
2) Remove belt cover from left end of the mower
to expose the belt and its components.
3) Unlock the 5/8” nuts on the threaded rod of the
belt tightener tube and thread them in to relieve
the spring tension on the belt.
4) Remove the 1/2” nut and lock washer from the
1/2” bolt. Remove the bolt and pulley and the
two spacers.
5) Remove the belt.
6) Reverse the above steps to reinstall the belt.
Pulley Removal:
1) Refer to page 4-7 in Section 4 for an illustrated
parts listing.
2) Remove the (2) screws from the taper lock
bushing of the rotor pulley.
3) Insert (1) screw into the threaded hole.
4) Tighten screw until bushing grip is released. (If
excessively tight, lightly hammer face of
pulley using drift pin or sleeve). NOTE: Never
hit pulley directly with hammer.
5) Replace the pulley by cleaning the shaft, bore of
bushing, outside of bushing and hub bore of all
oil, paint and dirt. File away any burrs.
N14867 3 - January, 2004
1
Page 18
Owner’s Manual (Timber Ax)
General Service Continued
Pulley Removal Continued:
6) Insert bushing into hub. Match the hole pattern,
not threaded holes (each complete hole will be
threaded on one side only).
7) Apply a thread-locking compound to set screws
and thread into the two opposing holes.
8) Position assembly on shaft and alternately
torque set screws to 35 ft. lbs.
9) To increase gripping force, hammer face of
bushing using drift or sleeve. (Do not hit
bushing directly with hammer).
10) Re-torque screws after hammering.
11) Recheck screw torque after initial run-in, and
periodically thereafter, repeat steps 4, 5 & 6 if
loose.
12) Check alignment of the pulleys. Repeat pulley
removal and assembly procedures if necessary.
Rotor Removal (Mower in Upside Down
Position):
This service section is written as if the mower is
upside down. If procedure is done with machine in
operating position, movable jacks will be needed to
support and move the rotor.
1) Refer to page 4-8 in Section 4 for an
illustrated parts listing.
2) Attach a lifting device to both ends of
rotor, and apply a light tension.
3) Remove the bearing guard by removing
the (2) 5/8” bolts and lock washers on
the right side of the shredder.
CAUTION: Excessive screw torque may
cause damage to the bushing or sheave.
Rotor Removal (Mower in Operating Position):
The belt and pulley should be removed with the
mower in operating position, but the procedures
for rotor removal and installation are greatly
simplified if the machine is turned upside down.
CAUTION:
If procedure is initiated with mower in
operating position, proper lifting devices
must be used to lift and move rotor.
A mower rotor weighs approximately 100
lbs./ft - i.e., a 73 inch mower rotor weighs
approximately 608 lbs.
4) Loosen the set screws on the bearings.
5) Remove the (4) 1/2” bolts and lock
washers holding the bearing to the side
plate and anti-wrap plate (located on the
inside of the side plate) on the left hand
side of the mower. Remove the bearing.
N14867 3 - January, 2004
2
Page 19
Owner’s Manual (Timber Ax)
Rotor Removal (Mower in Upside Down
Position) Continued:
6) Remove the remaining (6) 5/8” bolts
and lock washers that hold the anti-wrap
to the inside of the side plate.
7) Repeat step 4, 5, and 6 on left hand side.
8) Lift rotor out of machine.
9) Slide anti-wrap plates off rotor shaft.
Remove spacers from right and left hand
ends of rotor shaft.
10) Reverse the above noted procedure
for installation.
Storage:
End of the Season:
• Clean entire mower thoroughly.
• Clean the belt and pulleys, relax the belt tension.
• Lubricate all parts of the machine (see
lubrication, page 3-1 Section 3)
• Make a list of all worn or damaged parts and
replace them.
• Paint all parts that are worn or rusted.
• Store mower in a clean, dry area.
• Review your operator’s manual
Beginning of the Season:
• Review your operator’s manual.
• Lubricate all parts of the machine (see
lubrication, page 3-1 Section 3).
• Tighten all bolts, nuts, and set screws.
• Reapply tension to the belt so there is 1/2”
deflection at mid point between the pulleys.
N14867 3 - January, 2004
3
Page 20
Owner’s Manual (Timber Ax)
Trouble shooting:
WARNING: When high pressure fluid escapes, it can be almost invisible, yet have enough pressure
to penetrate the skin and enter the blood stream. Never attempt to use hands to search for suspected oil leak. If
injured by escaping fluid, consult a doctor at once! Serious reaction or infection can occur if proper medical
treatment is not obtained immediately.
SYMPTOM POSSIBLE CAUSE SOLUTION ____
Excessive Vibration *Broken or missing knife. *Replace knife
*Mud and/or debris wrapped around *Clean the machine
the rotor
* Bearing malfunction *Check and replace faulty
rotor and drive line bearings.
*Damage to rotor, includes bent end *Return to factory for repair
of shafts missing balance weights, or
actual rotor deformity from striking
rocks, etc.
Uneven Cut *Knives dull or worn excessively. *Reverse or replace knives.
*Engine RPM too slow. *Operate at full throttle
*Ground speed too fast. *Reduce ground speed and
increase rotor speed.
*Roller not properly adjusted. *Readjust roller.
Rotor Does Not Turn *Bearings malfunction *Check and replace.
*Belt damaged or slipping. *Adjust tension or replace.
N14866 3 - August, 2003
4
Page 21
Owner’s Manual (Timber Ax)
Torque Charts
Minimum Hardware Tightening Torques
In Foot Pounds (Newton-Meters) for Normal Assembly Applications
Inches Hardware and Lock Nuts
SAE Gr. 2 SAE Grade 5 SAE Grade 8 Lock Nuts
Nominal Unplated Plated Unplated Plated Unplated Plated Grade Grade
Sizeor W/ZnCr or W/ZnCr or W/ZnCr W/Gr.5 W/Gr.8
Plated Plated Plated Bolt Bolt
Silver Gold Silver Gold Silver Gold
1/4 55 (6.2) 72 (8.1) 86 (9.7) 112 (13) 121 (14) 157 (18) 61 (6..9) 86 (9.8)
5/16 115 (13) 149 (17) 178 (20) 229 (26) 250 (28) 324 (37) 125 (14) 176 (20)
3/8 17 (23) 22 (30) 26 (35) 34 (46) 37 (50) 48 (65) 19 (26) 26 (35)
7/16 27 (37) 35 (47) 42 (57) 54 (73) 59 (80) 77 (104) 30 (41) 42 (57)
1/2 42 (57) 54 (73) 64 (87) 83 (113) 91 (123) 117 (159) 45 (61) 64 (88)
9/16 60 (81) 77 (104) 92 (125) 120 (163) 130 (176) 169 (229) 65 (88) 92 (125)
5/8 83 (112) 107 (145) 128 (174) 165 (224) 180 (244) 233 (316) 90 (122) 127 (172)
3/4 146 (198) 189 (256) 226 (306) 293 (397) 319 (432) 413 (560) 160 (217) 226 (306)
7/8 142 (193) 183 (248) 365 (495) 473 (641) 515 (698) 667 (904) 258 (350) 364 (494)
1 213 (289) 275 (373) 547 (742) 708 (960) 773 (1048) 1000 (1356) 386 (523) 545 (739)
N14866 3 - August, 2003
5
Page 22
Owner’s Manual (Timber Ax)
Torque Charts
Minimum Hardware Tightening Torque
Inch Pounds for Normal Assembly Applications
Metric Hardware and Lock Nuts
Class 5.8 Class 8.8 Class 10.9 Lock Nuts
Nominal Unplated Plated Unplated Plated Unplated Plated Class 8
Size or W/ZnCr or W/ZnCr or W/ZnCr W/CL.8.8
Plated Plated Plated Bolt
Silver Gold Silver Gold Silver Gold
M4 15 (107) 19 (2.2) 23 (2.6) 30 (3.4) 33 (3.7) 42 (4.8) 16 (1.8)
M6 51 (5.8) 67 (7.6) 79 (8.9) 102 (12) 115 (13) 150 (17) 56 (6.3)
M8 124 (14) 159 (18) 195 (22) 248 (28) 274 (31) 354 (40) 133 (15)
M10 21 (28) 27 (36) 32 (43) 41 (56) 45 (61) 58 (79) 22 (30)
M12 36 (49) 46 (63) 55 (750 72 (97) 79 (107) 102 (138) 39 (53)
M16 89 (121) 117 (158) 137 (186) 177 (240) 196 (266) 254 (344) 97 (131)
M20 175 (237) 226 (307) 277 (375) 358 (485) 383 (519) 495 (671) 195 (265)
M24 303 (411) 392 (531) 478 9648) 619 (839) 662 (897) 855 (1160) 338 (458)
N14866 3 - August, 2003
6
Page 23
Section
4
Service Parts
Page 24
Page 25
Owner’s Manual (Timber Ax)
Service Parts
Ordering Service Parts:
To assist our customer service department in providing you with the correct replacement parts promptly and
accurately, follow the ordering instructions as listed below.
1. Order replacement parts by providing the following information:
A) Shredder serial number – Refer to serial number plate, which also includes the model number,
located on left hand side of the unit near the overhung load adapter.
Or if the plate is missing, check the top area of the main body near
the front of the cylinder/ratchet mount (serial number is stamped
into the main body).
B) Part description - Illustration drawings are provided to assist in identifying the parts by
description and part numbers. Use this information to insure that
correct service parts are ordered and sent to you.
C) Quantities - Order the exact number of parts required, do not order by “sets”.
D) Shipping instructions - Give company/customer name, shipping point or will call and
mailing addresses notification if different than shipping point. State
whether freight, express, parcel or other handling is desired.
Confirm telephone orders in writing.
2. Inspection of parts when received is important. Damages or shortages should be brought to the
attention of the carrier at the time the parts are accepted. Shipper’s responsibilities cease upon delivery
of shipment, in good order, to the customer.
Return Policy:
Return of parts for either warranty or incorrect parts received, must have a “Return of Materials Authorization”
(RMA) number. Call Loftness Specialized Equipment, Inc. service department for this return number. To receive
this number, you will need your “Sales Order, Invoice and Part Numbers” with quantities of parts to be
returned. Credit information and shipping instructions will be given to you when you have received your “RMA”
number. Be sure to place this number on the outside of the shipping package and on any document placed
inside.
Rotors damaged, during the warranty period, must be returned complete with the knives still attached for
warranty considerations.
Illustrated Parts Listings:
Illustrated parts drawings are included in this section, starting with page 4-3, that will assist you in identifying
your brush shredder and the parts available for service. These pages include part numbers, descriptions and
quantities required for the 43”, 53”, 63”, 73” and 83” brush shredders. Include this information on our purchase
orders to insure correct receiving of replacement parts.
N14867 4 - January,
2004
1
Page 26
Owner’s Manual (Timber Ax)
Service Parts Continued
Decals:
Refer to illustration drawing on page 4-3 for placement of below listed decals:
4135: Danger-Rotating Knives - (2) required.
4137: Grease - (3) required.
4138: F.E.M.A. - (1) required.
4189: Warning-Rotating Parts - (1) required.
4334: Danger Stay Back - (1) required.
N12684: Small 3D Loftness – (1) required.
N13517: Made in the USA (not shown) – (1) required.
N13721: Model &Serial Number Tag – (1) required.
N13863: Danger – Flying Debris - (1) required.
N13864: Timber Ax – (2) required
N13872: Rotation – (1) required
4189
Model Number
Serial Number
4135
N13872
N13864
N12684
4334
N13721
4137
4138
N14867 4 - January,
2004
2
Page 27
Page 28
Page 29
Page 30
Page 31
Page 32
Page 33
Page 34
Page 35
Page 36
Page 37
Page 38
Page 39
TIMBER AX STARTER KIT #N13906
The Timber Ax starter kit contains the following items:
Part No. Oty. Description
N13804 4 Knife, Timber Ax (9-5/8”)
N13802 2 Knife, Timber Ax (4-5/8”)
N13870* 1 Tachometer
4042 6 Bolt, 5/8 UNF x 2” Grade 8
4057 6 Nut, 5/8” UNF Top Lock
N16137* 1 Gauge, 0 – 6000 PSI Pressure
N13879* 1 Bushing (Mounted on Gauge)
N13880* 1 Bushing (Mounted on Gauge)
N/A 2 Caps, Aluminum (Bushing Covers)
N13996 1 Gauge, Angle Knife
N/A 1 Tube, Loctite (Small)
N14867 1 Operator’s Manual & Parts Book (Warranty Included)
4187 6 Pin, 3/4" x 4-1/4” Plated
4099 4 Pin, Cotter 1/8” x 1-1/2”
4336 2 Clip, Hairpin 1/8” x 2-1/4”
N16279* 1 Case, Protective Gauge
*To order the “Diagnostic Gauge Kit” only (Parts N13870, N16137, N13879, N13880 & N16279), use part
number N16340.
4-15
Page 40
COMMERCIAL HYDRAULIC MOTOR
INSTALLATION INSTRUCTIONS
1. Use the motor selection chart to select the proper hydraulic motor to correspond
with the GPM flow rating of the loader to be used.
2. Install O-ring (PN / N11859) in groove at rear of the bearing block (PN / N10533).
It may be helpful to use grease to hold the O-ring in position.
3. Start the motor output shaft into the splined coupler of the bearing block and
carefully slide the motor forward till the motor mounting flange mates with the
mounting surface of the bearing block. Be sure the O-ring stayed in position and
didn’t get damaged.
(Note: The body of the motor is offset from the output shaft. Install with the belly
side of the motor hanging down.)
4. Install 2 / 1-1/4” x ½” UNC Gr. 8 bolts in the lower 2 holes of the motor mount.
(Note: It may be necessary to grind a corner off the head of the 1-1/4” bolts to
allow clearance for installation into the lower 2 holes of the motor mounting flange.)
5. Install 4 / 1-1/2”x ½” UNC Gr.8 bolts in the remaining 4 mounting holes.
Use a thread locking compound to assure that all 6 bolts will stay securely fastened.
6. Using a staggered pattern, tighten all 6 bolts to 50 ft.lbs. of torque, then to 75 ft.lbs.,
and finally to the maximum torque setting of 100 ft.lbs.
7. Replace hydraulic fittings and hoses as shown in the operator’s manual.
8. Follow the Dealer Pre-Delivery Set-up Instruction sheet to prepare the cutter for
operation.
9. After carefully checking for hydraulic leaks, the cutter should be ready to go.
(Note: Because there is no shaft seal used with this motor setup, it is extremely
important to protect the internal parts of the spare motors from foreign materials
by enclosing the complete motor in a plastic bag or other sealed container.)
4-16
Page 41
Motor Selection Chart 1-1-03 Please Note:Theoretical Rotor Speed in RPM's @ 95% Effeciency
r
r
GPM
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
27
28
29
30
31
32
33
34
35
36
37
Motor
Numbe
Displacement
1.47 109071
2
3
4
5
6
7
8
9
10
11
1.97 10908
2.46 10909
2.95 10910
3.44 10911
3.94 10912
4.46 10913
5.1 10914
5.74 10915
6.23 10916
7.2 13928
High Pressure Motors Only
26 3.76 16001
27 4.26 12770
Loftness
Part Numbe
Flail & BMO
Rotor RPM
1930 1493
2123 1642
2316 1791
1872 1448
2016 1560
2161 1671
2305 1782
1961 1517
2076 1606
2192 1695
2307 1784
2020 1562
2116 1637
2212 1711
2308 1785
2062 1595
2145 1659
2227 1722
2310 1786
2089 1615
2161 1671
2233 1727
2305 1782
2099 1624
2163 1673
2227 1722
2290 1771
2354 1821
2114 1635
2170 1678
2225 1721
2281 1764
2337 1807
2126 1644
2175 1682
2225 1720
2274 1759
2323 1797
2373 1835
2232 1726
2277 1761
2323 1796
2368 1832
2414 1867
2459 1902
2168 1676
2207 1707
2246 1737
2286 1768
2325 1798
2365 1829
2038
2113 1634
2188 1693
2264 1751
2339 1809
2131 1648
2198 1700
2265 1751
2331 1803
2398 1855
2464 1906
Timber Ax
Rotor RPM
1576
Page 42
TIMBER AX
DEALER PRE-DELIVERY SET-UP INSTRUCTIONS
1. Before hooking up to Timber AX, Check the relief valve setting of the auxiliary
hydraulic circuit on the loader. Adapt a hydraulic pressur
appropriate quick coupler and install in the pressure outlet of the high flow
hydraulic circuit. Engage the switch or lever for the auxiliary hydraulic circuit
with engine running at approximately half throttle and record the PSI reading.
Compare to factory specs. If reading falls short of factory specifications you
will need to address that with the loader’s manufacturer.
2. After establishing the relief setting of the loader being us
(paint stripe or colored tape) on the face of the AX pressure gauge at a
reading approximately 500 PSI less than the relief setting and instruct the
operator to try to avoid operating above that mark. This will help him operate
more efficiently and help to avoid overheating the hydraulic oil.
3. Hook loader up to Timber AX mount plate. Install 2 hos
approximately 7ft ) from the pressure side of the loader to the rear port of the
Timber AX valve, and from the front port of the valve back to the return side of
the auxiliary outlets. ( NOTE: On High Pressure Models AXH-26 / -27,
presssure line goes to port “B” and port “A” is the return line back to the
loader.) If possible, route the hoses down the back of the machine to a point
even with the mounting plate hinge point, then back up to the outlets. This
allows the hoses to bend at the hinge point rather than stretching, shortening,
and getting tangled as the machine is rotated. Secure with straps to avoid
pinch points.
4. Start machine and check that rotor shaft is rotating the correct direction. The
end of the rotor shaft is visible on the right end of the machine. Ref
arrow on the rotation decal to be sure rotor is turning Counter Clockwise
looking at the right end of the machine.
5. Use a electronic or mechanical tachometer ( access thru the bearing guard )
to check the rotor speed with engine at full throttle. Rotor RPM should
approximately match the speed called for on the Motor Selection Chart for the
GPM specified for the loader being used. The rotor RP
range of 200 RPM higher than the goal, or 100 RPM less than the goal. If it is
outside this recommended range, it may be necessary to disconnect the AX
and test the hydraulic output of the loader with a Flow Meter to see if it
corresponds with the factory specifications. If performance falls short, you
may need to contact loader manufacturer for assistance, or call Loftness for
other options.
6. Set the Push Bar in it’s most forward position. This is the most desirable set-
up for almost all situations.
7. The TIMBER AX should be ready to cut.
1/28/03
e gauge to the
ed, place a mark
es ( ¾ x
er to the
M should fall within a
Loading...