Timberwolf TW 280PHB (Petrol) User manual

C190-0307 - Rev 1.0 EN
TW 280PHB Wood Chipper
INSTRUCTION MANUAL
(Original Instructions)

Published on: 11/01/2021
Document ID: C190-0307 - Revision 1.0
Contact address
Timberwolf Ltd
Entec House
Tomo Industrial Estate
Stowmarket
Suffolk
IP14 5AY
Website
.
English timberwolf-uk.com
French timberwolf.fr
German timberwolf-hacksler.de
Dutch timberwolf-houtversnipperaar.nl
Australian timberwolfchippers.com.au
Copyright
Copyright © 2021 Timberwolf All Rights Reserved.
Contains information owned by Timberwolf and/or its affiliates. Do not copy, store, transmit or disclose to
any third party without prior written permission from Timberwolf.
Other product and company names may be trademarks or registered trademarks of other companies, and
are the property of their owners. They are used only for explanation, without intent to infringe.

C190-0307 - Rev 1.0 EN 1/60
Contents
1 Introduction 5
1.1 Thank you for choosing Timberwolf 5
1.2 Important Health and Safety Information 5
1.3 Warning or Caution Symbols 6
1.4 Hazardous Materials 6
1.5 Purpose 6
2 Product Details 7
2.1 Specification 7
2.2 Location of Parts 8
2.2.1 Parts Locator 1 8
2.2.2 Parts Locator 2 9
2.2.3 Parts Locator 3 10
2.3 Tool Box 10
2.4 Safety Decals 11
2.5 Instruction Decals 12
2.6 Model Decals 14
2.7 Identification Plate 15
2.8 Guards 15
3 Safety Notes and Warnings 17
3.1 Safety Notices 17
3.2 Operator's Personal Protective Equipment (PPE) 17
3.3 Basic Woodchipping Safety 18
3.4 Operating Safely - You MUST 19
3.5 Operating Safely - You MUSTNOT 19
3.6 Noise Emissions 20
4 Towing and Handling 21
4.1 Safe Transportation 21
4.2 Hitching to the Towing Vehicle 21
4.3 Unhitching from the Towing Vehicle 22
TW 280PHB (Petrol)

4.4 Adjustable Tow Head 23
4.5 Stabilising the Chipper 24
5 Operating Instructions 25
5.1 Manual Controls 25
5.2 No Stress Control 26
5.3 Emergency Stopping 27
5.4 Discharge Controls 29
5.5 Engine Controls 29
5.6 Checks Before Starting 30
5.7 Starting the Engine 30
5.8 Controlling the Engine Speed 31
5.9 In-feed Safety Test 31
5.10 Chipping 32
5.11 Working in Dusty Conditions 32
5.12 Stopping the Engine 32
5.13 Blockages 33
5.14 Blade Wear 33
5.15 Check Hydraulic Oil Level 34
5.16 Check Fuel Level and Refuel 34
5.17 Troubleshooting 35
6 Maintenance Instructions 37
6.1 Safe Maintenance 37
6.2 Routine Servicing 38
6.2.1 Daily Servicing 38
6.3 Spares 38
6.4 Engine Servicing 39
6.5 Safe Lifting of the Chipper 39
6.6 Battery Safety Information 40
6.7 Check and Replace Fasteners 42
6.8 Change Blades 43
6.9 Adjust Rotor Drive Belt Tension 45
6.10 Adjust Hydraulic Pump Drive Belt Tension 45
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6.11 V-Belt Tensioning Procedure 46
6.12 Change Hydraulic Oil and Filter 48
6.13 Check Hoses 48
6.14 Grease the Discharge Tube Mounting Flanges 49
6.15 Grease the Roller Box Slides 49
6.16 Grease the Roller Splines and Rotor Bearings 50
7 Electrical System 51
7.1 Funnel Circuit 52
7.2 Funnel Circuit (Timberwolf Safety Plus Kit) 52
8 Hydraulic System 53
9 Storage 55
9.1 Preparing for Storage 55
9.2 Storage Conditions 55
9.3 3-Monthly Storage Checks 55
9.4 6-Monthly Storage Checks 55
9.5 12-Monthly Storage Checks 56
9.6 Recommissioning after Storage 56
10 Dismantling and Disposal 57
10 Declaration of Conformity 58
11 Notes 59
TW 280PHB (Petrol)

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1 Introduction
1.1 Thank you for choosing Timberwolf
Timberwolf wood chippers are designed to give safe and dependable service if operated in
accordance with the instructions.
This manual should be considered an important part of the machine and should
remain with it if the machine is resold.
This manual covers the operation and maintenance of the Timberwolf TW 280PHB and the
optional Timberwolf Safety Plus Kit. All information in this manual is based on the latest
product information available at the time of purchase.
This manual also covers the operation of the TW 280PHB when fitted with an adjustable
tow head.
All the information you need to operate the machine safely and effectively is contained
within this manual.
Ensure that all operators are properly trained for operating the TW 280PHB, especially in
safe working practices.
Timberwolf's policy of regularly reviewing and improving our products may involve major or
minor changes to this TW 280PHB or its 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 TW 280PHB and the text in this manual.
All TW 280PHB chippers have a full pre-delivery inspection before leaving the factory and
are ready to use.
1.2 Important Health and Safety Information
Before using your new chipper, please take time to read this manual. Failure to do so could
result in:
• personal injury.
• equipment damage.
• damage to property.
• 3rd party injuries.
TW 280PHB (Petrol)

1.3 Warning or Caution Symbols
Be aware of these symbols and where shown, carefully follow the instructions.
These symbols indicate important safety messages in this manual. When you see these
symbols, 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.
1.4 Hazardous Materials
The following hazardous materials are present within the TW 280PHB:
• Engine oil • Battery acid • Petrol
• Grease • Hydraulic oil • Copper Ease
• Loctite • Coolant
MATERIAL SAFETY DATA SHEETS FOR THESE HAZARDOUS MATERIALS ARE
AVAILABLE ON REQUEST. REFER TO THESE FOR FIRST AID AND FIRE
PROTECTION MEASURES.
Always follow recommended procedures for safe handling, removal and disposal of
hazardous materials. Safety precautions should be taken when handling hazardous
materials. The use of oil-resistant gloves and safety glasses is recommended. Avoid direct
contact with the substance. Store in a cool, well ventilated area. Avoid sources of ignition,
strong oxidising agents and strong acids. Ensure hazardous spillages do not flow into the
ground or drainage system. Ensure potential environmental damage is controlled safely,
according to local laws.
1.5 Purpose
The TW 280PHB is designed to chip solid wood material up to 210 mm (8 inches) in
diameter and is capable of chipping over 6.5 tonnes of brushwood per hour.
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2 Product Details
This chapter contains the specifications of the TW 280PHB.
It shows the locations of the main components of the chipper, lists all the decals used on the
machine, and describes the purpose of the various guarding assemblies.
2.1 Specification
The specifications of the TW 280PHB are shown in Table 1.
Length and weight will differ depending on whether the machine has a Fixed, or Adjustable
tow head.
Overall Height 2370 mm
Height with Discharge Tube Removed 1510 mm
Overall Length (Fixed Tow Head) 3860 mm
Overall length (Adjustable Tow Head) 4606 mm
Length with Feed Tray Folded (Fixed Tow Head) 3330 mm
Length with Feed Tray Folded (Adjustable Tow Head) 4076 mm
Width 1640 mm
Overall Weight (Fixed Tow Head) 1193 Kg
Overall Weight (Adjustable Tow Head) 1252 Kg
Engine Type Kubota 4-cylinder petrol
Maximum Power 42.5 kW (57 hp)
Cooling Method Water cooled
Starting Method Electric
Roller feed Twin series hydraulic motors
Maximum Material Diameter 210 mm (8 inches)
Fuel Capacity 38 litres
Hydraulic Oil Capacity 15 litres
Maximum Material Processing Capacity 6.5 tonnes/hr
Fuel Type Petrol
Table 1 - Specifications
TW 280PHB (Petrol)

2.2 Location of Parts
2.2.1 Parts Locator 1
1 Discharge bucket 12 Light board
2 Roller box guard 13 Reflector (both sides)
3 Lifting eye 14 Control box (both sides)
4 Air intake 15 Feed tray
5 Jockey wheel height adjuster 16 Safety bar
6 Tow head 17 In-feed funnel
7 Engine bay side panels (both sides) 18 Manual canister
8 Rotor housing 19 Push stick (Timberwolf Safety Plus Kit)
9 Reflectors (both sides) 20 Emergency stop (Timberwolf Safety Plus Kit)
10 Rotor housing blade access hatch 21 Discharge tube clamp
11 Hydraulic motor guard 22 Discharge tube
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2.2.2 Parts Locator 2
1 Lifting eye 8 In-line fuel filter
2 Electric panel 9 Drive belts
3 Air filter 10 Fuel tank
4 Exhaust 11 Hydraulic tank
5 Radiator 12 Prop stand
6 Engine block 13 Hydraulic filter
7 Fuel pump
2 Product Details TW 280PHB (Petrol)

2.2.3 Parts Locator 3
1 Fan section (x4) 8 Hydraulic pump
2 Rotor 9 Cutting blade (x2)
3 Rotor pulley 10 Greasing point
4 Belt tensioning pulley 11 Battery
5 Directional control valve 12 Top slide
6 Drive pulley 13 Control panel
7 Hydraulic pump pulley
2.3 Tool Box
The TW 280PHB is supplied with a tool box which contains:
• Combination spanner (17mm/19mm) • Access cover keys (x2)
• Rotor locking tool • Ignition keys (x2)
• Copper Ease • Keyring
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2.4 Safety Decals
Pt No Description
616 WARNING - Hot exhaust.
617 WARNING - High velocity discharge. Keep clear.
4099 DANGER - Rotating blades. Keep hands and feet out.
C192-
0102 DANGER - Do not climb into the feed funnel (Timberwolf Safety Plus Kit).
P637 DANGER - Do not operate without this cover in place.
P650 DANGER - Autofeed system fitted. Rollers may turn without warning. When the engine is
switched off the rollers will turn during the run down period.
P651 Fuel here. Risk of fire. Allow engine to cool for one minute before refuelling. Use
unleaded petrol only.
P653 DANGER - Rotating blades inside. Stop engine and remove key before removing
discharge unit.
P654 CAUTION - When transporting, discharge clamps may work loose. Check frequently.
P655 CAUTION - Avoid standing directly in front of feed funnel to reduce exposure to noise,
dust and risk from ejected material.
P656 DANGER - Do not use this machine without the discharge unit fitted. Failure to comply
may result in serious injury or damage.
P3611 DANGER - Rotating blades. Keep hands and feet out (Timberwolf Safety Plus Kit).
Table 2 - Safety Decal Descriptions
2 Product Details TW 280PHB (Petrol)

2.5 Instruction Decals
Pt No Description
670 Personal Protective Equipment required. (Section 3.2 "
Operator's Personal Protective
Equipment (PPE) " on page 17.)
1258 WARNING - Failure to maintain brake adjustment will result in damper failure. No
warranty liability will be accepted on this item.
1399 Push safety bar to stop.
1661 Refer to the instruction manual for greasing and maintenance information.
1662
The instruction manual with this machine contains important operating, maintenance and
health and safety information. Failure to follow the information in this instruction manual
may lead to death or serious injury.
2800 Reverse feed.
2801 Forward feed.
2949
Lifting eye is designed to lift the machine's weight only. Do not use hoist on lifting eye.
Use correctly rated safety shackle only through lifting eye. Lifting eye to be inspected
every 6 months and prior to each use. Do not use lifting eye if damaged.
3022 Clean under blades before refitting or turning. Failure to do so may result in blades
coming loose and damage being caused to the rotor housing.
18393 New drive belts need re-tensioning. When new belts are fitted check tension every 2-3
hours and adjust until tension remains constant.
19517
WARNING - Do not engage starter motor for more than 20 seconds. Allow one minute
before attempting to start. Investigate reasons for failure to start. Excessive cranking will
result in starter motor failure. This will not be covered under warranty.
P652 CAUTION -Do not put road sweepings in machine as grit will damage blades.
Table 3 - Instruction Decal Descriptions
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Pt No Description
P691 Do not pull here.
P1301 Push to stop. Pull to reset. (Engine.)
P1812 Torque blade bolts to 170 Nm (125 ft-lb).
C192-
0130 Engine control panel.
C192-
0144 Lifting eye maximum weight.
2 Product Details TW 280PHB (Petrol)

2.6 Model Decals
Pt No Description
1363 Timberwolf - Wolf head logo.
2998 Guaranteed Sound Power Level. (The maximum amount of acoustic energy emitted by
the machine.)
C192-
0107 Timberwolf - Left side panel.
C192-
0108 Timberwolf - Right side panel.
C192-
0114 Timberwolf - Left side panel.
C192-
0115 Timberwolf - Right side panel.
C192-
0147
Equivalent Continuous Sound Power Level. (The average amount of acoustic energy an
operator is subjected to during normal operations.)
Table 4 - Model Decal Descriptions
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2.7 Identification Plate
The Timberwolf TW 280PHB Identification Plate is mounted on the front outer face of the
right-hand chassis beam. It includes the unique machine Serial Number.
2.8 Guards
Ensure all the guards are correctly fitted during all operations. The guards may only be
removed for maintenance.
The TW 280PHB has the following fixed guards for protection of the operator, chipper and
environment:
Roller Box Guard
• Protects the rotor housing from damage or foreign matter.
• Protects the operator from injuries from moving rollers or from ejected material
during operation.
Hydraulic Motor Guard
• Protects the hydraulic motors from damage.
• Protects the operator from injuries due to heat or movement of the motor.
Rotor Housing Blade Access
• Protects the operator from rotating parts (e.g. cutting blades).
• The interlocking switch prevents the engine from running when the hatch is
opened, to stop the chipper from rotating.
Engine Bay Side Panels
• Protect the operator from moving parts (e.g. belts and pulleys), hot surfaces and
engine fluids.
• Protect the chipper from ingress of environmental debris.
2 Product Details TW 280PHB (Petrol)

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3 Safety Notes and Warnings
3.1 Safety Notices
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in moderate injury or
damage the machine.
3.2 Operator's Personal Protective Equipment (PPE)
DO NOT wear rings, bracelets, watches, jewellery, loose-fitting clothing or any other items
that could be caught in the material and draw you into the chipper.
Chainsaw safety helmet (EN 397) fitted with mesh visor (EN 1731)
and ear defenders (EN 352).
Work gloves with elasticated wrist.
Steel toe cap safety boots (EN 345-1).
Close-fitting heavy-duty non-snag clothing. High-visibility clothing
(EN 471) if risk assessment identifies the need.
Face mask if appropriate.
TW 280PHB (Petrol)

3.3 Basic Woodchipping Safety
It is the responsibility of the machine operator to carry out a full site Risk Assessment
before starting work. This Risk Assessment should consider the following points:
MAINTAIN A SAFETY EXCLUSION ZONE around the chipper of at least 10 metres for
the general public or employees without adequate protection. Use hazard tape to identify
this working area and keep it clear from debris build up. Chips should be ejected away from
any area the general public have access to.
HAZARDOUS MATERIAL - Some species of trees and bushes are poisonous. The
chipping 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 chipped
before you start. Avoid confined spaces and use respiratory protection where necessary.
BE AWARE when the chipper 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, it may push you to one side. Badly twisted material should be trimmed
before being chipped to avoid thrashing in the feed funnel.
BE AWARE that the chipper can eject chips 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).
NEVER leave the chipper unattended when running. Machines must be supervised at all
times when in use.
In the event of an accident, stop the machine, remove the key and call the emergency
services immediately.
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