際際滷

際際滷Share a Scribd company logo
the company you want to do business with
The Benefits of Ferris Independent Suspension
The overview
There are seven key points (sweet spots) to
consider when assessing Ferris independent
suspension.
They are summarised in the following slides
and covered in detail later in this course.
The Seven Sweet Spots
1 Productivity
 You can mow for longer, legally
The Seven Sweet Spots
1 Productivity
2 Accuracy
 All the steering wheels are on the ground, all the time
The Seven Sweet Spots
1 Productivity
2 Accuracy
3 Safety
 All the braking wheels are on the ground, all the time
The Seven Sweet Spots
1 Productivity
2 Accuracy
3 Safety
4 Cutting Quality
 The cutting deck floats level with the ground at all
times
The Seven Sweet Spots
1 Productivity
2 Accuracy
3 Safety
4 Cutting Quality
5 Reliability
 A new 4-year warranty on independent suspension
parts
The Seven Sweet Spots
1 Productivity
2 Accuracy
3 Safety
4 Cutting Quality
5 Reliability
6 Unique
 Only available from Ferris
The Seven Sweet Spots
1 Productivity
2 Accuracy
3 Safety
4 Cutting Quality
5 Reliability
6 Unique
7 Chassis life
 Suspension reduces chassis stress
The Seven Sweet Spots
Productivity
The Health & Safety Executive (HSE) stipulates
how long a machine can be used each day
based on how much vibration it generates.
Two vibration measurements affect mowers:
 Whole Body Vibration (WBV)
 Hand Arm Vibration (HAV)
Lower vibration, longer hours
Independent suspension dramatically reduces
Whole Body Vibration.
By reducing vibration, Ferris ride-on mowers
can legally be used for longer than many
other mowers.
Lower vibration, longer hours
Local Authorities are especially conscious of
HSE recommendations. It is cheaper and more
responsible to follow HSE recommendations
than face litigation from injured staff.
Lower vibration, longer hours
The HSE publish calculators that specify how
long a machine can be used based on its
vibration.
Proving the point
Whole Body Vibration calculator
 www.hse.gov.uk/vibration/wbv/calculator.htm
Proving the point
Hand Arm Vibration calculator
 www.hse.gov.uk/vibration/hav/vibrationcalc.htm
Proving the point
The results to focus on are:
 Exposure Action Value (EAV)
 Exposure Limit Value (ELV)
These numbers illustrate the amount of
vibration an operator has been subjected to
during a days work.
Proving the point
Exposure Action Value (EAV)
 If a mower exceeds this value during a day the owner is
advised to show they have assessed the risk to the
operator and taken necessary precautions.
A mower with independent suspension
vibrates less so it can be used longer before
reaching the EAV.
Proving the point
Exposure Limit Value (ELV)
 The operator must stop using a machine once this
value has been reached.
A mower with independent suspension
vibrates less so it can be used longer before
reaching the ELV.
Proving the point
Productivity summary
Independent
suspension
Less vibration
Longer
working hours
Higher
productivity
Reduced costs
Accuracy
Independent suspension keeps the drive
wheels on the ground.
Wheels on the ground can steer the mower.
Wheels in the air cant.
Better steering, more accuracy
Safety
Independent suspension keeps the braking
wheels on the ground. This can become
critical when loading and unloading mowers.
Wheels on the ground can stop the mower.
Wheels in the air cant.
Effective braking, enhanced safety
Cutting quality
The cutting deck floats with the wheels not
the mowers main chassis.
As the wheels follow the terrain, so does the
cutting deck.
Floating deck, better cut
Reliability
All new Ferris ride-on mowers have a 4-year
warranty on the independent suspension
parts.
This covers the lifetime of most Local
Authority contracts.
This is in addition to standard warranty.
4-year warranty
Unique
Ferris is the only manufacturer to offer all-
wheel independent suspension.
If you want the advantages independent
suspension brings, theres only one option.
Only with Ferris
Chassis life
All-round independent suspension extends
the working life of a mower by reducing three
types of chassis stress:
 Torsional stress from uneven ground
 Jolts from holes, bumps and kerbs
 Vibration from general use
Less vibration, longer life

More Related Content

Similar to IPU: The benefits of Ferris independent suspension (20)

Tyre Protector - Permanent Puncture Prevention
Tyre Protector - Permanent Puncture PreventionTyre Protector - Permanent Puncture Prevention
Tyre Protector - Permanent Puncture Prevention
Geoff24
Rex and Link-Belt Spherical Roller Bearing Units Rexnord
Rex and Link-Belt Spherical Roller Bearing Units RexnordRex and Link-Belt Spherical Roller Bearing Units Rexnord
Rex and Link-Belt Spherical Roller Bearing Units Rexnord
Arve
Monitoring plain bearings with ultrasound
Monitoring plain bearings with ultrasoundMonitoring plain bearings with ultrasound
Monitoring plain bearings with ultrasound
Barrak Al Fares
Important alignment
Important alignmentImportant alignment
Important alignment
Encik Rafa Benitez
Bearings and lubrications
Bearings and lubricationsBearings and lubrications
Bearings and lubrications
Muhammad Nadeem
Tyre Secure PPT
Tyre Secure PPTTyre Secure PPT
Tyre Secure PPT
Maroof Shah
How Frequently Should You Schedule an Alignment for Your Audi
How Frequently Should You Schedule an Alignment for Your AudiHow Frequently Should You Schedule an Alignment for Your Audi
How Frequently Should You Schedule an Alignment for Your Audi
Mint Automotive
Gear Fundamentals & _Failure Analysis.pdf
Gear Fundamentals & _Failure Analysis.pdfGear Fundamentals & _Failure Analysis.pdf
Gear Fundamentals & _Failure Analysis.pdf
Ziad Salem
2016_03_SF Product Presentation
2016_03_SF Product Presentation2016_03_SF Product Presentation
2016_03_SF Product Presentation
Gary Ballinger
A1.pdf
A1.pdfA1.pdf
A1.pdf
Mahamad Jawhar
BRAKES PPT.........................................
BRAKES PPT.........................................BRAKES PPT.........................................
BRAKES PPT.........................................
ayushambadare99
Alignment.pptx
Alignment.pptxAlignment.pptx
Alignment.pptx
syedmuhammedarifain
suspension system.ppt
suspension system.pptsuspension system.ppt
suspension system.ppt
RAMESHKUMARB6
Wind turbine grease sampling and analysis
Wind turbine grease sampling and analysisWind turbine grease sampling and analysis
Wind turbine grease sampling and analysis
Rich Wurzbach
universal joint
universal jointuniversal joint
universal joint
akmalzuhri96
Gen iii aluminumnewarcnocontrols
Gen iii aluminumnewarcnocontrolsGen iii aluminumnewarcnocontrols
Gen iii aluminumnewarcnocontrols
Don Neubauer
Internship.pptx
Internship.pptxInternship.pptx
Internship.pptx
EphremAbabiya1
Mech disc brakes ppt
Mech disc brakes  pptMech disc brakes  ppt
Mech disc brakes ppt
rockboy1999
Unit 3 : Wheels,Tyre and Braking System
Unit 3 : Wheels,Tyre and Braking SystemUnit 3 : Wheels,Tyre and Braking System
Unit 3 : Wheels,Tyre and Braking System
Vishal Niphade
10 Drum Brakes - Automotive Engineering .pptx
10 Drum Brakes - Automotive Engineering .pptx10 Drum Brakes - Automotive Engineering .pptx
10 Drum Brakes - Automotive Engineering .pptx
somenewguyontheweb
Tyre Protector - Permanent Puncture Prevention
Tyre Protector - Permanent Puncture PreventionTyre Protector - Permanent Puncture Prevention
Tyre Protector - Permanent Puncture Prevention
Geoff24
Rex and Link-Belt Spherical Roller Bearing Units Rexnord
Rex and Link-Belt Spherical Roller Bearing Units RexnordRex and Link-Belt Spherical Roller Bearing Units Rexnord
Rex and Link-Belt Spherical Roller Bearing Units Rexnord
Arve
Monitoring plain bearings with ultrasound
Monitoring plain bearings with ultrasoundMonitoring plain bearings with ultrasound
Monitoring plain bearings with ultrasound
Barrak Al Fares
Bearings and lubrications
Bearings and lubricationsBearings and lubrications
Bearings and lubrications
Muhammad Nadeem
Tyre Secure PPT
Tyre Secure PPTTyre Secure PPT
Tyre Secure PPT
Maroof Shah
How Frequently Should You Schedule an Alignment for Your Audi
How Frequently Should You Schedule an Alignment for Your AudiHow Frequently Should You Schedule an Alignment for Your Audi
How Frequently Should You Schedule an Alignment for Your Audi
Mint Automotive
Gear Fundamentals & _Failure Analysis.pdf
Gear Fundamentals & _Failure Analysis.pdfGear Fundamentals & _Failure Analysis.pdf
Gear Fundamentals & _Failure Analysis.pdf
Ziad Salem
2016_03_SF Product Presentation
2016_03_SF Product Presentation2016_03_SF Product Presentation
2016_03_SF Product Presentation
Gary Ballinger
BRAKES PPT.........................................
BRAKES PPT.........................................BRAKES PPT.........................................
BRAKES PPT.........................................
ayushambadare99
suspension system.ppt
suspension system.pptsuspension system.ppt
suspension system.ppt
RAMESHKUMARB6
Wind turbine grease sampling and analysis
Wind turbine grease sampling and analysisWind turbine grease sampling and analysis
Wind turbine grease sampling and analysis
Rich Wurzbach
universal joint
universal jointuniversal joint
universal joint
akmalzuhri96
Gen iii aluminumnewarcnocontrols
Gen iii aluminumnewarcnocontrolsGen iii aluminumnewarcnocontrols
Gen iii aluminumnewarcnocontrols
Don Neubauer
Mech disc brakes ppt
Mech disc brakes  pptMech disc brakes  ppt
Mech disc brakes ppt
rockboy1999
Unit 3 : Wheels,Tyre and Braking System
Unit 3 : Wheels,Tyre and Braking SystemUnit 3 : Wheels,Tyre and Braking System
Unit 3 : Wheels,Tyre and Braking System
Vishal Niphade
10 Drum Brakes - Automotive Engineering .pptx
10 Drum Brakes - Automotive Engineering .pptx10 Drum Brakes - Automotive Engineering .pptx
10 Drum Brakes - Automotive Engineering .pptx
somenewguyontheweb

Recently uploaded (20)

Soil Properties and Methods of Determination
Soil Properties and  Methods of DeterminationSoil Properties and  Methods of Determination
Soil Properties and Methods of Determination
Rajani Vyawahare
AIR FILTER system in internal combustion engine system.ppt
AIR FILTER system in internal combustion engine system.pptAIR FILTER system in internal combustion engine system.ppt
AIR FILTER system in internal combustion engine system.ppt
thisisparthipan1
Environmental Product Declaration - Uni Bell
Environmental Product Declaration - Uni BellEnvironmental Product Declaration - Uni Bell
Environmental Product Declaration - Uni Bell
ManishPatel169454
Instruction execution cycle _
Instruction execution cycle                  _Instruction execution cycle                  _
Instruction execution cycle _
SwatiHans10
IoT-based-Electrical-Motor-Fault-Detection-System.pptx
IoT-based-Electrical-Motor-Fault-Detection-System.pptxIoT-based-Electrical-Motor-Fault-Detection-System.pptx
IoT-based-Electrical-Motor-Fault-Detection-System.pptx
atharvapardeshi03
Design and Analysis of Algorithms Unit 5
Design and Analysis of Algorithms Unit 5Design and Analysis of Algorithms Unit 5
Design and Analysis of Algorithms Unit 5
sureshkumara29
How to Build a Speed Sensor using Arduino?
How to Build a Speed Sensor using Arduino?How to Build a Speed Sensor using Arduino?
How to Build a Speed Sensor using Arduino?
CircuitDigest
Defining the Future of Biophilic Design in Crete.pdf
Defining the Future of Biophilic Design in Crete.pdfDefining the Future of Biophilic Design in Crete.pdf
Defining the Future of Biophilic Design in Crete.pdf
ARENCOS
ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3
ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3
ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3
prasadmutkule1
Improving Surgical Robot Performance Through Seal Design.pdf
Improving Surgical Robot Performance Through Seal Design.pdfImproving Surgical Robot Performance Through Seal Design.pdf
Improving Surgical Robot Performance Through Seal Design.pdf
BSEmarketing
Zero-Trust-Architecture-Reimagining-Network-Security.pptx
Zero-Trust-Architecture-Reimagining-Network-Security.pptxZero-Trust-Architecture-Reimagining-Network-Security.pptx
Zero-Trust-Architecture-Reimagining-Network-Security.pptx
yash98012
INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...
INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...
INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...
csijjournal
Turbocor Product and Technology Review.pdf
Turbocor Product and Technology Review.pdfTurbocor Product and Technology Review.pdf
Turbocor Product and Technology Review.pdf
Totok Sulistiyanto
Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...
Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...
Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...
SnehPrasad2
PPt physics -GD.pptx gd topic for physics btech
PPt physics -GD.pptx gd topic for physics btechPPt physics -GD.pptx gd topic for physics btech
PPt physics -GD.pptx gd topic for physics btech
kavyamittal2201735
AI ppt on water jug problem by shivam sharma
AI ppt on water jug problem by shivam sharmaAI ppt on water jug problem by shivam sharma
AI ppt on water jug problem by shivam sharma
ShivamSharma588604
INTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptx
INTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptxINTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptx
INTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptx
bmit1
Dilatometer Test in Geotechnical engineering an over view .pptx
Dilatometer Test in Geotechnical engineering an over view .pptxDilatometer Test in Geotechnical engineering an over view .pptx
Dilatometer Test in Geotechnical engineering an over view .pptx
RaghuramChallaC011
惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸
惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸
惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸
o774656624
-PPT-5-Wind-Energy conversion slides contents
-PPT-5-Wind-Energy conversion   slides contents-PPT-5-Wind-Energy conversion   slides contents
-PPT-5-Wind-Energy conversion slides contents
senthilkumarmamse
Soil Properties and Methods of Determination
Soil Properties and  Methods of DeterminationSoil Properties and  Methods of Determination
Soil Properties and Methods of Determination
Rajani Vyawahare
AIR FILTER system in internal combustion engine system.ppt
AIR FILTER system in internal combustion engine system.pptAIR FILTER system in internal combustion engine system.ppt
AIR FILTER system in internal combustion engine system.ppt
thisisparthipan1
Environmental Product Declaration - Uni Bell
Environmental Product Declaration - Uni BellEnvironmental Product Declaration - Uni Bell
Environmental Product Declaration - Uni Bell
ManishPatel169454
Instruction execution cycle _
Instruction execution cycle                  _Instruction execution cycle                  _
Instruction execution cycle _
SwatiHans10
IoT-based-Electrical-Motor-Fault-Detection-System.pptx
IoT-based-Electrical-Motor-Fault-Detection-System.pptxIoT-based-Electrical-Motor-Fault-Detection-System.pptx
IoT-based-Electrical-Motor-Fault-Detection-System.pptx
atharvapardeshi03
Design and Analysis of Algorithms Unit 5
Design and Analysis of Algorithms Unit 5Design and Analysis of Algorithms Unit 5
Design and Analysis of Algorithms Unit 5
sureshkumara29
How to Build a Speed Sensor using Arduino?
How to Build a Speed Sensor using Arduino?How to Build a Speed Sensor using Arduino?
How to Build a Speed Sensor using Arduino?
CircuitDigest
Defining the Future of Biophilic Design in Crete.pdf
Defining the Future of Biophilic Design in Crete.pdfDefining the Future of Biophilic Design in Crete.pdf
Defining the Future of Biophilic Design in Crete.pdf
ARENCOS
ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3
ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3
ESIT135 Problem Solving Using Python Notes of Unit-2 and Unit-3
prasadmutkule1
Improving Surgical Robot Performance Through Seal Design.pdf
Improving Surgical Robot Performance Through Seal Design.pdfImproving Surgical Robot Performance Through Seal Design.pdf
Improving Surgical Robot Performance Through Seal Design.pdf
BSEmarketing
Zero-Trust-Architecture-Reimagining-Network-Security.pptx
Zero-Trust-Architecture-Reimagining-Network-Security.pptxZero-Trust-Architecture-Reimagining-Network-Security.pptx
Zero-Trust-Architecture-Reimagining-Network-Security.pptx
yash98012
INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...
INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...
INVESTIGATION OF PUEA IN COGNITIVE RADIO NETWORKS USING ENERGY DETECTION IN D...
csijjournal
Turbocor Product and Technology Review.pdf
Turbocor Product and Technology Review.pdfTurbocor Product and Technology Review.pdf
Turbocor Product and Technology Review.pdf
Totok Sulistiyanto
Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...
Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...
Common Network Architecture:X.25 Networks, Ethernet (Standard and Fast): fram...
SnehPrasad2
PPt physics -GD.pptx gd topic for physics btech
PPt physics -GD.pptx gd topic for physics btechPPt physics -GD.pptx gd topic for physics btech
PPt physics -GD.pptx gd topic for physics btech
kavyamittal2201735
AI ppt on water jug problem by shivam sharma
AI ppt on water jug problem by shivam sharmaAI ppt on water jug problem by shivam sharma
AI ppt on water jug problem by shivam sharma
ShivamSharma588604
INTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptx
INTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptxINTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptx
INTERNET OF THINGSSSSSSSSSSSSSSSSSSSSSSSSS.pptx
bmit1
Dilatometer Test in Geotechnical engineering an over view .pptx
Dilatometer Test in Geotechnical engineering an over view .pptxDilatometer Test in Geotechnical engineering an over view .pptx
Dilatometer Test in Geotechnical engineering an over view .pptx
RaghuramChallaC011
惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸
惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸
惠悋惡 悋惠悋惶 悋悋愆悋悧 愆悛惠 悋悽惘愕悋悸
o774656624
-PPT-5-Wind-Energy conversion slides contents
-PPT-5-Wind-Energy conversion   slides contents-PPT-5-Wind-Energy conversion   slides contents
-PPT-5-Wind-Energy conversion slides contents
senthilkumarmamse

IPU: The benefits of Ferris independent suspension

  • 1. the company you want to do business with The Benefits of Ferris Independent Suspension
  • 3. There are seven key points (sweet spots) to consider when assessing Ferris independent suspension. They are summarised in the following slides and covered in detail later in this course. The Seven Sweet Spots
  • 4. 1 Productivity You can mow for longer, legally The Seven Sweet Spots
  • 5. 1 Productivity 2 Accuracy All the steering wheels are on the ground, all the time The Seven Sweet Spots
  • 6. 1 Productivity 2 Accuracy 3 Safety All the braking wheels are on the ground, all the time The Seven Sweet Spots
  • 7. 1 Productivity 2 Accuracy 3 Safety 4 Cutting Quality The cutting deck floats level with the ground at all times The Seven Sweet Spots
  • 8. 1 Productivity 2 Accuracy 3 Safety 4 Cutting Quality 5 Reliability A new 4-year warranty on independent suspension parts The Seven Sweet Spots
  • 9. 1 Productivity 2 Accuracy 3 Safety 4 Cutting Quality 5 Reliability 6 Unique Only available from Ferris The Seven Sweet Spots
  • 10. 1 Productivity 2 Accuracy 3 Safety 4 Cutting Quality 5 Reliability 6 Unique 7 Chassis life Suspension reduces chassis stress The Seven Sweet Spots
  • 12. The Health & Safety Executive (HSE) stipulates how long a machine can be used each day based on how much vibration it generates. Two vibration measurements affect mowers: Whole Body Vibration (WBV) Hand Arm Vibration (HAV) Lower vibration, longer hours
  • 13. Independent suspension dramatically reduces Whole Body Vibration. By reducing vibration, Ferris ride-on mowers can legally be used for longer than many other mowers. Lower vibration, longer hours
  • 14. Local Authorities are especially conscious of HSE recommendations. It is cheaper and more responsible to follow HSE recommendations than face litigation from injured staff. Lower vibration, longer hours
  • 15. The HSE publish calculators that specify how long a machine can be used based on its vibration. Proving the point
  • 16. Whole Body Vibration calculator www.hse.gov.uk/vibration/wbv/calculator.htm Proving the point
  • 17. Hand Arm Vibration calculator www.hse.gov.uk/vibration/hav/vibrationcalc.htm Proving the point
  • 18. The results to focus on are: Exposure Action Value (EAV) Exposure Limit Value (ELV) These numbers illustrate the amount of vibration an operator has been subjected to during a days work. Proving the point
  • 19. Exposure Action Value (EAV) If a mower exceeds this value during a day the owner is advised to show they have assessed the risk to the operator and taken necessary precautions. A mower with independent suspension vibrates less so it can be used longer before reaching the EAV. Proving the point
  • 20. Exposure Limit Value (ELV) The operator must stop using a machine once this value has been reached. A mower with independent suspension vibrates less so it can be used longer before reaching the ELV. Proving the point
  • 23. Independent suspension keeps the drive wheels on the ground. Wheels on the ground can steer the mower. Wheels in the air cant. Better steering, more accuracy
  • 25. Independent suspension keeps the braking wheels on the ground. This can become critical when loading and unloading mowers. Wheels on the ground can stop the mower. Wheels in the air cant. Effective braking, enhanced safety
  • 27. The cutting deck floats with the wheels not the mowers main chassis. As the wheels follow the terrain, so does the cutting deck. Floating deck, better cut
  • 29. All new Ferris ride-on mowers have a 4-year warranty on the independent suspension parts. This covers the lifetime of most Local Authority contracts. This is in addition to standard warranty. 4-year warranty
  • 31. Ferris is the only manufacturer to offer all- wheel independent suspension. If you want the advantages independent suspension brings, theres only one option. Only with Ferris
  • 33. All-round independent suspension extends the working life of a mower by reducing three types of chassis stress: Torsional stress from uneven ground Jolts from holes, bumps and kerbs Vibration from general use Less vibration, longer life