Timberwolf TW PTO/S426 User manual

CONTENTS
Section Page No.
INTRODUCTION 1
PURPOSE OF MACHINE 2
MACHINE DIMENSIONS & SPECIFICATIONS 2
PARTS LOCATION DIAGRAMS 3 & 4
SAFE WORKING 5
Operator’s Personal Protective Equipment Required 5
Basic Shredding Safety 5
General Safety Matters - Do’s and Dont’s 6
Noise Test 7
OPERATING INSTRUCTIONS 8
Delivery 8
Operator’s Personal Protective Equipment Required 8
Daily Checks Before Starting Tractor 8
Connecting to Tractor 8
PTO Shaft 8
Moving the Shredder 8
Before Using the Shredder 9
Manual Controls 9
Auto Controls 10
Stopping the Shredder 10
Emergency Stopping 10
Starting the Shredder 10
Starting to Shred 10
Discharge Controls 11
Hydraulic Oil Lever Indicator 11
Shredding 11
Blockages 11
SERVICE INSTRUCTIONS 12
Service Schedule 13
Safe Maintenance 14
Checking/Top up Gearbox Oil Level and Oil Change Procedure 14
Service Schedule 14
Change Hydraulic Oil and Filter 15
Safe Lifting of the Shredder 15
Spares 16
Copper Ease Safety Information 16
Check Free Rotation of Rotor Drum and Hammers 17
PTO Drive Shaft Maintenance 17
Change Hammers 18
Check Hoses 18
Grease Drum Bearings 19
Tension Drive Belts 19
Grease the Roller Box Slides 20
Grease the Roller Spline and Bearing 20
Grease the Discharge Flange 20
Grease the Main Drive and Pump Drive 20
WARRANTY STATEMENT 21
EC DECLARATION OF CONFORMITY CERTIFICATE 22
DECALS 23 - 24
ELECTRICAL DETAIL 25
HYDRAULIC LAYOUT 26
CIRCUIT DIAGRAM 27
PARTS LISTS 28 - 40
22nd June 09

TIMBERWOLF PTO S426 1
Thank you for choosing this Timberwolf shredder. Timberwolf shredders are designed
to give safe and dependable service if operated according to the instructions.
Before using your new shredder, please take time to
read this manual which contains
IMPORTANT HEALTH AND SAFETY INFORMATION
and explains the shredder controls. Failure to do so could result in:
- personal injury
- equipment damage
- damage to property
- a member of the general public becoming injured
This manual covers the operation and maintenance of the Timberwolf PTO S426.All
information in this manual is based on the latest product information available at the
time.
NOTE - Also supplied with this manual - 1 x Prop shaft instruction sheet.
All the information you need to operate the machine safely and effectively is contained
within pages 2 to 11. Ensure that all operators are properly trained for operating this
machine, especially with regard to safe working practices.
Timberwolf's policy of constantly improving their products may involve major or minor
changes to the shredders or their accessories. Timberwolf reserves the right to make
changes at any time without notice and without incurring any obligation.
Due to improvements in design and performance during production there may be, in
some cases, minor discrepancies between the actual shredder and the text in this
manual.
The manual should be considered a permanent part of the
machine and should remain with it if the machine is resold.
CAUTION or WARNING
Be aware of this symbol and where shown,
carefully follow the instructions.
This caution symbol indicates important safety messages in this manual. When
you see this symbol, be alert to the possibility of injury to yourself or others, and
carefully read the message that follows.
Always follow safe operating and maintenance practices
INTRODUCTION
!

Serial No. Location
The serial number can be
found on the identification
plate located on the gear
box guard.
1600mm
DIMENSIONS
2420mm
2795mm with standard tow head (2205mm with feed tray folded)
1355mm
PURPOSE OF MACHINE
TIMBERWOLF PTO S426 SPECIFICATION
TIMBERWOLF PTO S426 2
WARNING - LIMITATIONS ON MATERIALS.
To properly control the speed of material entering the shredder chamber, the machine
relies on the large feed roller to grip the material. The feed roller can grip material down to 15mm in diameter.
The machine will not tolerate or process items such as tyres, mattresses, heavy duty plastic containers (used
for oils, chemicals, etc.), carpets, reinforced concrete, metallic items exceeding lightweight domestic door
furniture, commercial plastic gas pipe, alkathene water pipe, metal reinforced drainage/irrigation pipe, baler
twine, rope, metal banding, computer hard drives (which contain magnets) and any similar objects to the
above.
Ejection of material – Warning! The PTO S426 shredder ejects material at high speed. Ensure there is an
adequate safety zone and that ejected material is aimed away from operators into a safe area, i.e. an
enclosure or container with a back stop (i.e. wall) behind it to prevent ejected material from leaving the work
area and causing injury and damage. If loading into a truck or trailer, ensure the structure is strong enough to
cope with the impact from ejected material.
!!
The Timberwolf PTO S426 is a high speed, heavy duty professional shredder. It is designed to shred general
green waste (brash, prunings, hedge trimmings, Leylandii, Christmas trees, rootballs, etc.),brushwood up to
150mm/6” (depending on tractor horsepower), pallets, domestic doors, wooden and plastic window frames (all
pre-cut to fit feed aperture), contaminated timber, chipboard, MDF, packaging materials, uPVC plastic,
cardboard, wooden furniture, fence posts and similar items. The machine will tolerate drinks cans, plastic
bottles, stones, rocks and concrete (up to fist size), nails, metal door furniture, glass bottles and similar items.
Power source Tractor PTO drive
Overall weight 1260kg
(without prop shaft)
Type of feed Hydraulic
Maximum diameter material 225mm (9")
Material processing capacity 3 tonnes/hr
Required engine power 80 - 115hp
PTO speed 1000rpm

PARTS LOCATOR 3
FEED FUNNEL
DISCHARGE
TUBE
DISCHARGE
BUCKET
SAFETY BAR
ROTOR
HOUSING
GEAR BOX
GUARD
ROLLER
CONTROLS
DISCHARGE
HEIGHT
CONTROL
FEED TRAY CLEARING
PLATE
FRAME
DISCHARGE
ROTATION
CONTROL
3 POINT
LINKAGE
PROP
SUPPORT

PARTS LOCATOR 4
ROTOR
PULLEY
DRIVE
BELTS
FUEL
TANK
TRIGGER
GEAR BOX
TOP
ROLLER
SLIDE
HYDRAULIC
OIL TANK
HYDRAULIC
OIL FILTER
MOTOR
ROTOR
DRUM
HAMMERS
HYDRAULIC
PUMP
DRIVE
PULLEY
PTO
CONNECTION
TRAILER
PLUG
ELECTRICAL CONTROL PANEL

SAFE WORKING 5
BASIC SHREDDING SAFETY
The operator should be aware of the following points:
MAINTAIN A SAFETY EXCLUSION ZONE around the shredder of at least 10 metres for the
general public or employees without adequate protection. Due to the nature of material being
shredded and the distance/velocity of discharge, the exclusion zone must be extended to 20
metres in front of the discharge tube exit. Use hazard tape to identify this working area and
keep it clear from debris build up. Shredded material should be ejected away from any area the
general public have access to.
HAZARDOUS MATERIAL - Some species of trees and bushes are poisonous. The shredding
action can produce vapour, spray and dust that can irritate the skin. This may lead to
respiratory problems or even cause serious poisoning. Check the material to be shredded
before you start. Avoid confined spaces and use a facemask if necessary.
BE AWARE when the shredder is processing material that is an awkward shape. The material
can move from side to side in the funnel with great force. If the material extends beyond the
funnel, the brash may push you to one side causing danger.
BE AWARE that the shredder can eject material out of the feed funnel with considerable force.
Always wear full head and face protection.
ALWAYS work on the side of the machine furthest from any local danger, e.g. not road side.
WARNING
The shredder will feed material through on its own. To do this, it relies on
the hammers to be free to swing. DO NOT put bricks, large stones, string,
carpet, tyres or metal into the shredder. !
!
OPERATOR'S PERSONAL PROTECTIVE EQUIPMENT REQUIRED
Chainsaw safety helmet
fitted with mesh visor and
recommended ear defenders
to the appropriate
specifications.
Work gloves with
elasticated wrist.
Close fitting heavy-duty
non-snag clothing.
Face mask if
appropriate.
DO NOT
wear rings, bracelets,
watches, jewellery or any
other items that could be
caught in the material and
draw you into the shredder.
Steel toe cap safety boots.

SAFE WORKING 6
GENERAL SAFETY MATTERS
DO NOT use shredder unless available light is
sufficient to see clearly.
DO NOT attempt to engage PTO without the
feed funnel, belt guard, guards and discharge unit
securely in place.
DO NOT operate the shredder unless properly
guarded.
DO NOT stand directly in front of the feed funnel
when using the shredder. Stand to one side.
DO NOT allow -
DO NOT smoke when
refuelling.
DO NOT let anyone who has
not received instruction
operate the machine.
DO NOT climb on the machine at any time.
DO NOT handle material that is partially engaged
in the machine.
DO NOT touch any exposed wiring while
machine is running.
DO NOT use the shredder inside buildings.
- to enter the machine, as damage is likely.
ALWAYS stop the tractor engine and disconnect
the PTO shaft before making any adjustments,
refuelling or cleaning..
ALWAYS check machine has stopped rotating
and remove tractor ignition key before
maintenance of any kind, or whenever the
machine is to be left unattended.
ALWAYS check machine is well supported and
cannot move.
ALWAYS run tractor engine at required speed to
acheive correct PTO speed.
ALWAYS check (visually) for fluid leaks.
ALWAYS take regular breaks. Wearing personal
protective equipment for long periods can be
tiring and hot.
ALWAYS keep hands, feet and clothing out of
feed opening, discharge and moving parts.
ALWAYS use the next piece of material or a push
stick to push in short pieces. Under no
circumstances should you reach into the funnel.
ALWAYS keep the operating area clear of people,
animals and children.
ALWAYS keep the operating area clear from
debris build up.
ALWAYS keep clear of the discharge tube.
Foreign objects may be ejected with great force.
ALWAYS ensure protective guarding is in place
before commencing work. Failure to do so may
result in personal injury or loss of life.
ALWAYS use shredder in a well ventilated area -
exhaust fumes are dangerous.
BRICKS STRING METAL
CLOTH OR
CARPET
RUBBER LARGE
STONES
!
DO’S AND DON’TS



SAFE WORKING 7
MACHINE:
NOTES:
TW S426TDHB / PTO S426
NOISE LEVELS REFLECT SHREDDING 120mm X 120mm
CORSICAN PINE WITH A S426TDHB. LEVELS WILL VARY ON
THE PTO S426, DEPENDING ON THE SIZE AND MODEL OF THE
TRACTOR USED.
Noise levels above 80dB (A) will be experienced at the working position. Wear ear protection
at all times to prevent possible damage to hearing. All persons within a 4 metre radius must
also wear good quality ear protection.
NOISE TEST
95.1 dB
94.8 dB
97.2 dB96.6 dB
R= 4 metres
100.7 dB
95.1 dB
R= 10 metres
9
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9
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B
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d
9
0
.
9
d
B
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d
9
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.
9
d
B
C
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Model shown S426TDHB

OPERATING INSTRUCTIONS 8
CONNECTING TO TRACTOR
WARNING
Ensure the tractor is turned off and the ignition key removed before
connecting the PTO. PTO shafts are the major cause of incidents on
agricultural machinery. !
!
DO NOT move the shredder with the drum running.
MOVING THE SHREDDER
DELIVERY
All Timberwolf PTO S426 machines have a full pre delivery inspection before leaving the factory and are
ready to use. Read and understand this instruction manual before attempting to operate the shredder.
In particular, read pages 5 - 7 which contains important health and safety information and advice.
OPERATOR’S PERSONAL PROTECTIVE EQUIPMENT REQUIRED
CHAINSAW safety helmet fitted with visor and
recommended ear defenders to an appropriate
specification.
HEAVY-DUTY gloves with elasticated wrist area.
CLOSE - FITTING heavy-duty non-snag clothing.
SAFETY footwear.
FACE MASK (if appropriate).
See page 5 for more detailed information.
CHECK the angle of the prop shaft when connected to the tractor, which should not exceed 16o.
CHECK that when the machine is lifted for transport the prop shaft does not reach an angle
that causes damage.
IF the prop shaft is supplied with a torque limiter or clutch, this must be fitted to the shredder
end of the drive shaft.
PTO SHAFT
DAILY CHECKS BEFORE STARTING TRACTOR
ENSURE drive shaft ends are securely fitted to PTO shaft and implement input shaft.
CHECK for properly guarded PTO shaft, implement input and drive shaft.
CHECK that guard chains are securely attached to stationary frame to prevent rotation of guard.
CONNECT power cable from tractor to shredder and turn on tractor side lights.
LOCATE the machine on firm level ground.
CHECK the discharge unit is in place and fastened securely.
CHECK discharge tube is pointing in a safe direction.
CHECK the feed funnel to ensure no objects are inside.
CHECK controls as described on page 9.
For parts location see diagrams on pages 3 & 4.

MANUAL CONTROLS
Roller control boxes- two control boxes are located on either side of the feed tray. Their function is
to control the feed roller that draw material into the machine. They do not control the main rotor.
RED SAFETY BAR = This is the large red bar that surrounds the feed tray and side of the feed funnel.
The bar is spring loaded and connected to a switch that will interrupt the power to the roller. The
switch is designed so that it only activates if the bar is pushed to the limit of its travel. The roller will
stop instantly, but can be made to turn again by pressing either the GREEN FEED or BLUE
REVERSE control buttons.
GREEN BUTTON = Forward feed - Push the button once - this activates the roller and will allow you
to start shredding (if the rotor speed is high enough).
BLUE BUTTON = Reverse feed - allows you to back material out of the roller. The roller will only turn
in reverse as long as you keep pressing the button.
OPERATING INSTRUCTIONS 9
GREEN
FORWARD
FEED
PANEL
BLUE
REVERSE
FEED
PANEL
RED SAFETY BAR
Control Box Diagram
Do not rely on the red bar to keep the roller
stationary if it is necessary to clear or touch the
roller. Always switch off the machine and remove
ignition key before approaching the roller.
There are two control boxes, located on
either side of the feed tray.
ENSURE feed funnel, feed roller guard, prop shaft guards and access covers are fitted and
secure, and that discharge unit is fitted and pointing in a safe direction.
WHEN ready to start shredding, increase PTO speed slowly until 1000 rpm is achieved.
IT IS ESSENTIAL TO CARRY OUT THE FOLLOWING TESTS to check safety equipment - this
sequence of tests will only take a few seconds to carry out. We recommend that these tests
are carried out daily. Observing the function as described will confirm that the safety circuits
are working correctly. This is also a good opportunity to remind all operators of the control and
emergency stop systems. .
BEFORE USING THE SHREDDER
3
12
PRESS THE GREEN
BUTTON
THE ROLLER
SHOULD TURN FORWARDS
PRESS THE RED
SAFETY BAR
THE ROLLER
SHOULD STOP
PRESS THE BLUE BUTTON
THE ROLLER SHOULD TURN
BACKWARDS ONLY WHILE THE
BUTTON IS PRESSED
WITH THE ROTOR RUNNING AT 1000RPM

OPERATING INSTRUCTIONS 10
AUTO CONTROLS
The no stress unit controls the feed rate of the material going into the shredding chamber. If the engine
speed is below the predetermined level, the no stress unit will not allow the feed roller to work in the
forward “infeed” direction, until the rotor speed rises above the predetermined level. At this point, the
feed roller will start turning without warning. The reverse function will work at any engine speed.
PUSH the RED safety bar (see control panel diagram on page 9).
KEEPING PTO engaged set tractor speed to idle.
WHEN idle speed steady stop tractor engine.
WHEN engine stationary disengage PTO clutch.
DO NOT disengage the PTO clutch while engine is running as the shredder cutting disc may
continue to free wheel for a long time.
STOPPING THE SHREDDER
Push the RED SAFETY BAR
Turn off tractor ignition key or operate tractor stop lever.
The emergency stop will prevent any more material being fed into the shredder. The rotor will still
be turning. The tractor must be disengaged or powered down to stop the rotor.
EMERGENCY STOPPING
STARTING THE SHREDDER
WARNING
Do not use or attempt to start the shredder without the protective guarding
and discharge unit securely in place. Failure to do so may result in
personal injury or loss of life.
!!
CONNECT the tractor power cable.
START tractor.
TURN ON side lights to allow 12 volts to the shredder - the socket and side lights must work.
GENTLY engage PTO clutch.
INCREASE tractor revs until tractor PTO speed = 1000 rpm.
DO NOT RUN ON ANY OTHER PTO SPEED SETTING.
CHECK that shredder is running smoothly.
PRESS the green control button. The roller will commence turning.
STAND to one side of the feed funnel.
PROCEED to feed material into the feed funnel.
STARTING TO SHRED
WARNING
Do not use or attempt to start the shredder without the protective
guarding and discharge unit securely in place. Failure to do so may
result in personal injury or loss of life.
!!
CHECK that shredder is running smoothly.
RELEASE the catches on the feed tray and lower.
PRESS the green control button. The roller will commence turning.
STAND to one side of the feed funnel.
PROCEED to feed material into the feed funnel.
AT the end of operations allow sufficient time for all shredded material to be ejected from the
discharge before switching off.

OPERATING INSTRUCTIONS 11
DISCHARGE CONTROLS
Controlling the discharge is an essential part of safe working.
ROTATION
Slacken nut ‘C’ using integral handle, rotate tube, retighten nut.
BUCKET ANGLE
Adjust the bucket to the desired angle by loosening clamp ‘A’ and
pushing/pulling handle ‘B’. When angle achieved retighten clamp ‘A’.
NOTE: Handle ‘B’ can be positioned in either upper or lower
holes according to operator preference.
CLEARING PLATE
Unclip catches ‘D’ on both sides to open the clearing plate.
C
D
A
B
HYDRAULIC OIL LEVEL INDICATOR
This can be viewed through the wall of the tank. Maximum and minimum marks are provided.
SHREDDING
WARNING
Limitations on materials.
To properly control the speed of material entering the shredder chamber, the machine relies on the large feed
roller to grip the material. The feed roller can grip material down to 15mm in diameter. The machine will not
tolerate or process items such as tyres, mattresses, heavy duty plastic containers (used for oils, chemicals,
etc.), carpets, reinforced concrete, metallic items exceeding lightweight domestic door furniture, commercial
plastic gas pipe, alkathene water pipe, metal reinforced drainage/irrigation pipe, baler twine, rope, metal
banding, computer hard drives (which contain magnets) and any similar objects to the above.
Ejection of material – Warning! The PTO/S426 shredder ejects material at high speed. Ensure there is an
adequate safety zone and that ejected material is aimed away from operators into a safe area, i.e. an enclosure
or container with a back stop (i.e. wall) behind it to prevent ejected material from leaving the work area and
causing injury and damage. If loading into a truck or trailer, ensure the structure is strong enough to cope with
the impact from ejected material.
!!
BLOCKAGES
Always be aware that what you are putting into the shredder must come out. If the material stops coming out
of the discharge tube but the shredder is taking material in - STOP IMMEDIATELY. Continuing to feed material
into a blocked machine may cause damage and will make it difficult to clear. Two areas of the machine can
become blocked - the discharge tube and the rotor housing. To clear a blockage proceed as follows:
STOP the tractor engine and remove the ignition
keys. Ensure rotor has stopped turning by
observation of the drive shaft.
REMOVE the two rotor housing securing nuts and
open the rotor housing until it rests against the
rubber stop. WARNING! Ensure the weight of the
discharge tube is fully supported whilst opening the
rotor housing, to avoid injury and damage.
REMOVE any blockage from the discharge tube,
ensuring that it is clear along its entire length.
WEARING gloves, reach into the rotor housing and
remove the material causing the blockage, including
any material that may have also entered the side fan
casing. WARNING! Beware of turning the rotor whilst
clearing a blockage, as this could lead to injury.
CLOSE the rotor housing and replace and tighten the
two securing nuts. WARNING! Ensure the weight of
the discharge tube is fully supported whilst lowering
the rotor housing, to avoid injury and damage.
RESTART the tractor, engage the PTO and run at
working speed. Allow sufficient time for the machine to
clear any residual material before recommencing work.
Continuing to feed the shredder with material once
it has become blocked will cause the shredder to
compact material in the rotor housing and
discharge chute and it will be difficult and time
consuming to clear.
AVOID THIS SITUATION - WATCH THE
DISCHARGE TUBE AT ALL TIMES.

SERVICE INSTRUCTIONS 12
THE FOLLOWING PAGES DETAIL ONLY
BASIC MAINTENANCE GUIDELINES SPECIFIC
TO YOUR SHREDDER.
THIS IS NOT A WORKSHOP MANUAL.
THE FOLLOWING GUIDELINES ARE NOT EXHAUSTIVE AND DO NOT EXTEND
TO GENERALLY ACCEPTED STANDARDS OF ENGINEERING/MECHANICAL
MAINTENANCE THAT SHOULD BE APPLIED TO ANY PIECE OF MECHANICAL
EQUIPMENT AND THE CHASSIS TO WHICH IT IS MOUNTED.
AUTHORISED TIMBERWOLF SERVICE AGENTS ARE FULLY TRAINED IN ALL
ASPECTS OF TOTAL SERVICE AND MAINTENANCE OF TIMBERWOLF
SHREDDER. YOU ARE STRONGLY ADVISED TO TAKE YOUR SHREDDER TO AN
AUTHORISED AGENT FOR ALL BUT THE MOST ROUTINE MAINTENANCE AND
CHECKS.
TIMBERWOLF ACCEPTS NO RESPONSIBILITY FOR THE FAILURE OF THE
OWNER/USER OF TIMBERWOLF SHREDDERS TO RECOGNISE GENERALLY
ACCEPTED STANDARDS OF ENGINEERING/MECHANICAL MAINTENANCE
AND APPLY THEM THROUGHOUT THE MACHINE.
THE FAILURE TO APPLY GENERALLY ACCEPTED
STANDARDS OF MAINTENANCE, OR THE PERFORMANCE
OF INAPPROPRIATE MAINTENANCE, MAY INVALIDATE
WARRANTY IN WHOLE OR IN PART.
PLEASE REFER TO YOUR AUTHORISED
TIMBERWOLF SERVICE AGENT FOR
SERVICE AND MAINTENANCE.
! !
! !

SERVICE INSTRUCTIONS 13
SERVICE SCHEDULE
Check feed funnel, feed roller cover, access covers,
and discharge unit are securely fitted. 
Check for free rotation of rotor drum and hammers. 
Check air intake is clear. 
Check (and lubricate if necessary) PTO shaft 
coupling grease nipples.
Check hoses for signs of chafing or leakage. 
Grease the drum bearings.
Grease the roller box slides. 
Grease the roller spline and bearing. 
Check for tightness all nuts, bolts and fastenings
making sure nothing has worked loose. 
Check tension of main drive belts
(and tension if necessary). 
Grease discharge flange. 
Check for loose electrical wiring. 
Replace hydraulic oil filter - every year or 100 hours
after service or repair work to the hydraulic system. 
Replace hydraulic oil. 
Inspect anvil and roller feed blades. Return to
dealer for replacing or sharpening as appropriate. 
Replace anvils.
Replace drum bearings.
Daily
Check
50
Hours
100
Hours
500
Hours
1
Year
RETURN TO DEALER
EVERY 1500 HOURS OR 3 YEARS
WARNING
Always immobilise the machine by stopping the engine, removing the ignition
key and disconnecting the battery before undertaking any maintenance work.
SERVICE SCHEDULE
!
!
OR
OR
OR AS REQUIRED - SEE PAGE 20
OR AS REQUIRED - SEE PAGE 20
GREASE DAILY OR AS REQUIRED WITH
INFREQUENT USE - SEE PAGE 19
NOTE: Your Timberwolf shredder is covered by a full 12 months parts and labour warranty. Subject
to correct maintenance and proper machine usage, the bearings are guaranteed for 12 months
regardless of hours worked by the machine. In conditions of 'heavy usage' - i.e. in excess of 500 hours
per year - it is recommended that the bearings are changed annually to ensure that the machine
retains optimum working performance.
OR

SERVICE INSTRUCTIONS
ALWAYS stop the tractor engine before
installing or removing the prop shaft.
HANDLE hammers with extreme caution
to avoid injury. Gloves should always be
worn when handling the hammers.
THE drive belts should be connected
while changing hammers, as this will
restrict sudden movement of the drum.
THE major components of this machine
are heavy. Lifting equipment must be
used for disassembly.
CLEAN machines are safer and easier to
service.
AVOID contact with hydraulic oil.
SAFE MAINTENANCE
14
ALWAYS IMMOBILISE THE TRACTOR BEFORE UNDERTAKING ANY MAINTENANCE WORK ON
THE SHREDDER .
To top up the gearbox oil (EP80 or EP90).
1. Remove the prop shaft.
2. Remove the gearbox guard
3. Locate the filler cap shown and remove.
4. Locate the level bolt and remove; this will
indicate the appropriate oil level.
NOTE: If oil runs out, topping up is NOT
required. Jump to step 6
5. Slowly pour the oil into the gearbox via the
filler hole, when the oil appears at the top oil
level hole stop.
6. Replace the level bolt and filler plug.
CHECKING/TOP UP GEARBOX OIL LEVEL AND OIL CHANGE PROCEDURE
Always remove the Shredder from the tractor before performing maintenance.
To change the gearbox oil (3.3 litres EP80 or EP90).
1. Locate the drain plug, place a suitable contain
to catch the 3.3 Litres of oil under the drain
point.
2. Remove the drain plug. Leave to stand for 10
minutes.
3. Replace drain plug.
Follow steps 1 to 6 to fill the gearbox with new
oil. You will need 3.3 litres of EP80 or EP90
gear oil.
4. Dispose of the waste oil responsively according
to local legislation.
34
1

SERVICE INSTRUCTIONS 15
WARNING
Use plastic gloves to keep oil off skin and dispose of the used oil and filter in
an ecologically sound way. The oil and filter should be changed once a year
or at any time it becomes contaminated. Before starting check that the
shredder is standing level.
CHANGE HYDRAULIC OIL AND FILTER
1. Remove the black screw cap from the top of the
filter housing.
2. Partially remove filter element from inner cup.
Leave filter to drain for 15 minutes.
3. Remove filter element from cup when clear of
hydraulic oil.
4. Remove drain plug and drain oil into a suitable
container.
5. Replace drain plug.
6. Refill with VG 32 hydraulic oil until the level is
between the min and max lines marked on the tank
(about 15 litres).
7. Refit the filter cup, install a new filter element and
refit the black screw cap to the filter housing,
ensuring o-ring remains in place.
2
! !
1
SAFE LIFTING OF THE SHREDDER
2
13
1500mm
1200mm
All slings used for the lifting procedure should be
rated at 2000kg.
Feed a sling through each lifting point in the roller
box marked with 1000kg (1&2). The length of each
rigged sling should be approximately 1200mm.
Use the top PTO link as the third lifting point (3). The
length of this rigged sling should be approximately
1500mm.
1200mm

SERVICE INSTRUCTIONS 16
Product name: Copper Ease.
Copper Ease contains no hazardous ingredients at or above regulatory disclosure limits, however,
safety precautions should be taken when handling (use of oil-resistant gloves and saftey glasses are
recommended - respiratory protection is not required). Avoid direct contact with the substance and
store in a cool, well ventilated area avoiding sources of ignition, strong oxidising agents and strong
acids. Dispose of as normal industial waste (be aware of the possible existance of regional or national
regulations regarding disposal), do not discharge into drains or rivers.
In case of fire: in combustion the product emits toxic fumes, extinguish with alcohol or polymer foam,
carbon dioxide or dry chemical powder. Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
FIRST AID
Skin contact: there may be mild irritation at the site of contact, wash immediately with plenty of soap
and water.
Eye contact: there may be irritation and redness, bathe the eye with running water for 15 minutes.
Ingestion: there may be irritation of the throat, do not induce vomiting, wash out mouth with water.
A safety data sheet for this product can be obtained by writing to the manufacturer at the
following address: Comma Oil and Chemicals Ltd., Deering Way, Gravesend, Kent DA12 2QX.
Tel: [phone], Fax: [phone].
COPPER EASE SAFETY INFORMATION
The TW PTO S426 is subject to large vibrations during the normal course of operation. Consequently
there is always a possibility that nuts and bolts will work themselves loose. It is important that periodic
checks are made to ensure the security of all fasteners. Fasteners should be tightened using a torque
wrench to the settings listed below . Uncalibrated torque wrenches can be inaccurate by as much
as 25%. It is therefore essential that a calibrated torque wrench is used to achieve the
tightening torques listed below.
Size Pitch Head Torque Ibft Torque Nm
Rotor Housing Clamp Nuts M16 Standard 24 mm Hex 40 54
Hyd Motor Retaining Cap Screws M12 Standard 10 mm Allen Key 60 81
Roller Box Retaining Bolts M16 Standard 24 mm Hex 105 140
Rotor Shaft Retaining Screws M12 Standard 10 mm Allen Key 105 140
Funnel Retaining Nuts M12 Standard 19 mm Hex 60 80
General M8 Standard 13 mm Hex 17 23
General M10 Standard 17 mm Hex 34 46
General M12 Standard 19 mm Hex 60 80
CHECK FITTINGS
Only fit genuine Timberwolf replacement screws and shredder spares. Failure to do so will
result in the invalidation of the warranty and may result in damage to the shredder, personal
injury or even loss of life.
SPARES

SERVICE INSTRUCTIONS 17
WARNING
Wear heavy gloves for the rotor drum/hammer checking operation.
CHECK FREE ROTATION OF ROTOR DRUM AND HAMMERS
!
!
2
3
1. Turn off tractor and remove key.
2. Using a 24 mm spanner remove the two M16 nuts clamping the
drum housing shut.
3. Carefully lift the drum housing until it rests on its stop.
4. Using the paddles to turn the drum, set a bank of hammers at
12 o'clock.
5. Check that each of the 9 hammers in this bank all rotate freely
through 360o.
6. Turn the drum to check the second bank of hammers.
7. Check all 9 hammers in second bank also rotate freely through
360o.
8. Lower the top of the drum housing and reinstall the two M16 nuts.
9. Torque these to 65lbft.
5
PTO DRIVE SHAFT MAINTENANCE
1. Lubricate regularly. At least every 16 hours on
coupling grease nipples and 8 hours on all other
lubricated points.
Replace prop shaft shear bolts only with correct
grade of bolt available from the shaft supplier.
SEE SEPARATE PROP SHAFT INSTRUCTION SHEET FOR FULL DETAILS.
Further information on the safe use of PTO shafts can be found in HSE leaflet AS 24
1

SERVICE INSTRUCTIONS 18
WARNING
Wear heavy gloves for the hammer changing operation.
CHANGE HAMMERS
!
!
8
7
34
1. Turn off tractor and remove key.
2. Disconnect PTO shaft from the shredder.
3. Using a 24 mm spanner remove the two
M16 nuts clamping the drum housing shut.
4. Carefully lift the drum housing until it rests
on its stop.
5. Using the paddles to turn the drum, set a
bank of hammers at 12 o'clock.
6. With a 6mm hex key undo and remove
the bolt in the hammer at each end of the
bank of hammers.
7. The shaft can now be withdrawn. The
shaft will need to be tapped away from
the main drive pulley side.
8. As the shaft is removed the hammers will be
released off the shaft. These need to be
held and removed as the shaft is withdrawn.
9. The hammer replacement is the reverse of
the above with the addition of some copper
slip on the hammer retainer bolts. Note the
hammer bushes should not be greased or
lubricated in any way. Any build up of debris
should be removed from both the shaft and
the hammer bushes so the hammer can
swing freely.
10. Turn the drum to change the second bank of
hammers.
11. Lower the top of the drum housing and
reinstall the two M16 nuts.
12. Torque these to 65lbft.
6
CHECK HOSES
All the hydraulic hoses should be regularly inspected for chafing and leaks. The hydraulic system is
pressurized to over 200 Bar and thus the equipment containing it must be kept in good condition.
Identify the hoses that run to the top motor. These have the highest chance of damage as they are
constantly moving. If any hydraulic components are changed new seals should be installed during
reassembly. Fittings should then be retightened correctly.

SERVICE INSTRUCTIONS 19
2
GREASE THE DRUM BEARINGS
1. Remove the rotor housing guard, situated on the offside of the
machine.
2. Apply two pumps of grease to the bearing taking care not to
over grease.
3. Refit guard.
2
34
1. Remove the rotor housing guards, (as shown in Fig.1 above).
2. Slacken the six M12 bolts but do not remove (there are three
located on each side of the machine).
3. Slacken the M8 tension nut from the adjuster bracket about
5mm on both sides of roller box.
4. Tension each of the M8 adjuster nuts drawing the drum
housing, roller box and funnel away from the PTO gearbox.
For instructions on checking belt tension & correct belt tension
values, please refer to the Timberwolf V-Belt Tensioning Data
Table (page 40).
5. Check the belt tension and repeat as necessary.
6. Once belt tension is correct lock off the M8 nut against the
tension bracket.
7. Retighten the six M12 bolts.
8. Refit the belt guard when finished.
Both bearings need regularly greasing.
1. Using a 24 mm spanner remove the two M16 nuts clamping the
drum housing shut.
2. Carefully lift the drum housing until it rests on its stop.
3. Apply two pumps of grease to the bearing taking care not to
over grease.
4. Lower the top of the drum housing and reinstall the two M16
nuts.
5. Torque these to 65lbft.
NOTE: There will normally be a rapid drop in tension during run-in period for new belts. When new
belts are fitted, check the tension every 2 - 3 hours and adjust until the tension remains constant.
Belt failures due to lack of correct tensioning will not be covered under your Timberwolf warranty.
2
3
TENSION DRIVE BELTS
Fig.1