Pedestrian Aeration Equipment — Equipment Check Guidance

This document provides guidance on pre-use and end-use checks for pedestrian aerators, core aerators, and scarifiers used in professional sports venue grounds maintenance. It covers equipment checks, operator safety considerations, and hand-arm vibration (HAV) obligations — which are particularly relevant for this category of equipment due to the high vibration levels typically produced during operation.

For consistency, this document uses machine to refer to each individual aerator or scarifier unit. Checks described here are visual and operational only and do not replace inspection or servicing by a competent person. Where a defect involves mechanical, electrical, or safety-critical components, the machine should be assessed by a competent person before it is returned to service. This guidance should be used alongside your organisation's site-specific risk assessments and safe working procedures.

Hand-Arm Vibration — Why This Equipment Matters

Pedestrian aerators and core aerators are among the highest-vibration machines used in grounds maintenance. Operators can accumulate significant hand-arm vibration exposure in a relatively short period of use — particularly when working on dry or compacted ground, where vibration levels increase significantly compared to softer conditions.

The Control of Vibration at Work Regulations 2005 requires employers to manage HAV exposure and keep daily exposure below defined thresholds. Vibration output is also directly affected by the maintenance state of the machine — worn, damaged, or unbalanced tines produce higher vibration than those in good condition, making pre-use checks directly relevant to operator health.

Pre-Use Check

A pre-use check should be completed each time a pedestrian aerator, core aerator, or scarifier is brought into use. Where vibration exposure is tracked in Toolminder, the pre-use check is presented automatically before timing begins, so it is completed as part of starting the machine. Checks are typically completed in 2–3 minutes per machine where no issues are found.

PPE Requirements

• Safety footwear — steel or composite toe-capped boots with slip-resistant soles should be worn at all times when operating this equipment
• Hearing protection — pedestrian aerators and core aerators produce significant noise levels during operation. Hearing protection should be worn and operators should be aware of their cumulative daily noise exposure
• Eye protection — safety glasses or goggles should be worn when operating scarifiers or any machine that may throw debris during use
• Gloves — general purpose gloves may be worn for grip and warmth. Anti-vibration gloves should not be relied upon as a control measure for HAV exposure — the HSE advise that their effectiveness against the vibration frequencies produced by this category of equipment is limited, and relying on them risks giving operators a false sense of protection. Reducing exposure time and maintaining equipment in good condition are the only effective controls

Tines, Blades & Working Parts

The condition of tines and working parts is the single most important factor affecting both machine performance and operator vibration exposure. Worn or damaged tines produce higher vibration and should be replaced before use.

• All tines or blades present, secure, and undamaged — no bent, cracked, or missing tines
• Tine uniformity across the full set — on professional pitches, even small variations in tine length or wear across the drum will produce uneven aeration depth, affecting drainage consistency and root development. Tines should be replaced as a full set rather than individually where possible
• Tine wear within acceptable limits — excessively worn tines reduce effectiveness and increase vibration output
• Tine bolts and fixings tight — no loose or missing fasteners
• Tine cassette correctly seated and all locking mechanisms engaged — on quick-change cassette systems, confirm the cassette is fully locked before operation. A partially seated cassette can shift during use, causing uneven depth and potential machine damage
• Cassette configuration recorded before starting — tine type, tine spacing, and working depth should be logged in the observations field in Toolminder. At professional venues, aeration depth is part of the pitch maintenance record and should be consistent and traceable across all sessions
• Drive mechanism free from debris and grass build-up that could cause imbalance during operation
• Correct tine type fitted for the intended operation — hollow, solid, or slit tines as appropriate

Engine & Mechanical Checks

• Fuel level sufficient for the planned work — refuel before starting rather than mid-operation
• Refuelling should only be carried out on a hard standing away from the pitch surface — never refuel on the pitch or near drainage channels. Allow the engine to cool before refuelling and never refuel with the engine running. A spill kit should be available at the refuelling point and any spillage contained and cleaned up immediately before returning to the pitch
• Engine oil at correct level — check dipstick before each use
• No visible fuel, oil, or hydraulic fluid leaks — check under the machine and around hose connections
• Spill kit available and accessible before work begins — on reinforced or hybrid turf surfaces, a hydraulic or fuel leak can cause significant damage to the grass reinforcement mesh and root zone. Operators should know the location of the nearest spill kit and be prepared to respond immediately if a hose bursts during operation
• Air filter clean and seated correctly — a blocked filter increases engine load and wear
• Drive belts visually intact — no cracking, fraying, or obvious slack
• Wheels and tyres in good condition — no flat spots or damage that could affect machine stability or tracking
• Machine clean and free from packed soil, reno sand, or top-dressing debris from previous use — even small amounts of sand or dressing material in the drum can cause imbalance and micro-vibration that affects machine precision over time

Hydraulic System Checks

On machines with hydraulic depth and drive control, the hydraulic system should be checked as part of every pre-use inspection. Hydraulic faults can cause sudden changes in tine depth or drive behaviour during operation, affecting both surface consistency and operator control.

• Hydraulic fluid level at correct mark on reservoir sight glass — low fluid indicates a leak that should be found before work begins
• All hydraulic hoses visually inspected along their full length — no bulging, cracking, chafing, or wet patches indicating seepage
• Hydraulic ram and cylinder rods clean and undamaged — no scoring, pitting, or hydraulic fluid weeping from seals
• Depth control hydraulics responding correctly — tine depth adjusts smoothly and holds position without creeping
• No unusual noise from hydraulic pump during initial run — cavitation or whining indicates low fluid or pump wear

Guards, Controls & Safety Devices

• All guards and covers in place and correctly fitted — tine guards, belt covers, and engine covers
• Operator presence control (dead man's handle) functioning correctly — machine should stop immediately on release
• Throttle and depth controls operating smoothly with no sticking or excessive play
• Emergency stop or blade engagement disengagement functioning as expected
• Handle height and grip condition suitable for the operator — correct handle height reduces operator fatigue and vibration transmission
• Anti-vibration mounts on handles intact and not perished — damaged mounts significantly increase vibration transmitted to the operator

Isolation & Lock-Off

Before any maintenance, adjustment, or blockage clearance is carried out on a machine, it should be fully isolated to prevent accidental starting.

• Engine switched off and key removed before attempting any maintenance or clearing a blockage
• On petrol engines, spark plug lead disconnected before working on tines, blades, or any driven component
• Machines taken out of service due to a safety-critical defect should be tagged or labelled clearly to prevent use by another operator — do not rely on verbal communication alone
• Defective machines should be physically separated from serviceable machines in storage where possible, with a service job raised in Toolminder so the fault is formally recorded and tracked

Operational Check & Ground Conditions

• Machine starts cleanly and runs smoothly at idle before engaging tines — no excessive vibration, knocking, or unusual noise at startup
• Tine engagement smooth with no sudden shock loading or excessive vibration on contact with the ground
• Ground conditions assessed before starting — dry or heavily compacted ground will produce significantly higher vibration than normal conditions, and operator exposure times should be reduced accordingly. Vibration levels may also change following recent irrigation cycles, as moisture content directly affects ground hardness and machine behaviour — conditions should be reassessed if the pitch has been watered since the last use of the machine
• Working depth set correctly for the intended operation and confirmed before beginning — depth should be verified with a physical check of tine penetration on a test pass, not assumed from the last session setting. Record the confirmed working depth in Toolminder observations
• Where the pitch has under-soil heating (USH) or sub-surface irrigation infrastructure, working depth should be cross-referenced with the pitch as-built drawings before starting. Tines should never reach the depth of USH pipes, sensors, or irrigation laterals — contact with any sub-surface installation can cause serious and costly damage. As-built drawings should be accessible to the operator or head groundskeeper before aeration work begins on any pitch where sub-surface systems are installed
• Under-soil heating interaction — where USH is active, ground temperature will be higher than ambient conditions suggest, which affects ground hardness and machine behaviour. Vibration output and tine penetration should be assessed on the first pass and exposure plans adjusted accordingly
• Any failed task should prompt a reason for failure and supporting photos — raise a service job immediately within the app
• Use the observations field to note early signs of wear, unusual noise, or increased vibration — proactive reporting prevents unplanned downtime and protects operator health

Pitch Protection & Operational Rules

• Tines should not be engaged when turning at the end of each pass — turning with tines down causes unnecessary surface disruption and accelerates tine wear. On reinforced or hybrid turf surfaces, tight turns should be avoided even with tines raised — sharp turning movements with heavy pedestrian machinery can cause surface shear and bruising of the synthetic fibres, which is difficult to repair and affects surface consistency
• Entry and exit routes onto the pitch should follow the agreed access points — avoid crossing areas not included in the aeration programme and protect goalmouths and high-wear areas unless specifically included in the work plan
• Working patterns should avoid irrigation heads, soil moisture sensors, and any other in-ground installations — locations should be known before work begins and marked if necessary
• Pre-match cut-off times should be observed — aeration work should be planned to allow sufficient recovery time before the pitch is needed. Confirm scheduling constraints with the head groundskeeper before starting
• On waterlogged or frost-affected ground, work should not proceed — operating in these conditions causes surface damage and produces unpredictable machine behaviour that increases operator risk

Manual Handling & Transport

• Pedestrian aerators and core aerators are heavy machines — loading and unloading from vehicles or trailers should use ramps rated for the machine weight and involve a second person where practicable
• Machines should be driven rather than pushed across hard surfaces where self-propelled — pushing heavy machines manually on hard standing is a common cause of back and shoulder injury
• Tines should be raised or cassettes removed before transporting the machine — engaged tines are a serious hazard during loading and movement
• Machines should be secured on vehicles using appropriate tie-down points — not by strapping across the engine cover or handle bars

End-Use Check

An end-use check should be completed each time a machine is finished with and returned to storage. Where exposure is tracked in Toolminder, an end-use check can be configured to run automatically when the machine is stopped. Completing it closes the operator's usage record for that session, which is important for accurate HAV exposure tracking.

Pitch Surface Inspection

Before the machine is moved off the pitch, a visual inspection of the worked area should be completed. At professional venues, any surface issues should be identified and reported immediately while the work area is still accessible.

• Aeration pattern visually even across the worked area — no missed strips, overlaps, or areas of noticeably different depth
• No surface disruption beyond the intended aeration — no excessive tearing, displacement of turf, or surface cracking
• On reinforced or hybrid surfaces, confirm no displacement of reinforcement mesh is visible at the surface — any mesh disturbance should be reported to the head groundskeeper immediately
• No fuel, oil, or hydraulic fluid on the pitch surface — if a spill has occurred, contain and clean immediately and record the incident
• Any surface concerns photographed and recorded in the Toolminder end-use check observations before leaving the pitch

Condition & Damage Checks

• Confirm no damage has occurred during use — tines, cassette, guards, frame, handles, hydraulic hoses, and controls all visually checked
• Tine condition reviewed after use — note any tines that have bent, broken, or worn significantly during the session. On cassette systems, check the full cassette for damage before removing
• Any new fuel, oil, or hydraulic leaks identified during use recorded and flagged — note exact location of leak on the machine to assist with repair
• Any defects recorded with notes and photos before the machine is returned to storage — raise a service job if a fault requires attention before next use

Cleaning & Storage Preparation

• Machine cleaned after use — soil, organic material, reno sand, and top-dressing debris removed from tines, cassette, drum, and underside. Sand and dressing material is abrasive and accelerates wear if left on moving parts
• Where equipment is moved between different pitches or sites — for example between the stadium and a training ground — tines and working parts should be cleaned and disinfected before transfer. This reduces the risk of cross-contamination of turf diseases or soil-borne pathogens between surfaces. Follow your organisation's site-specific bio-security procedure where one exists
• Tine cassette removed for cleaning and inspection where the machine allows — easier to identify tine damage or wear once the cassette is out and debris is cleared. Cassette locking mechanisms should also be cleaned and checked for wear
• Fuel management — follow manufacturer guidance on whether to run the tank dry or store with fuel stabiliser for extended storage periods
• Machine stored in a dry, secure location — not exposed to frost or standing water
• Check saved to the asset history — operator usage time recorded and visible to supervisors for HAV exposure monitoring

HAV Exposure — Operator Responsibilities

Operators using pedestrian aeration equipment should be aware of their cumulative daily vibration exposure and should report any symptoms of hand-arm vibration syndrome (HAVS) — including tingling, numbness, or whitening of the fingers — to their supervisor immediately. Early reporting is important as HAVS is a progressive condition and symptoms can become permanent if exposure continues without intervention.

Operators should also be aware that vibration exposure on a given day is cumulative across all equipment used, not just aeration equipment. If other high-vibration tools have already been used earlier in the day, the available time on aeration equipment before reaching the EAV or ELV may be significantly reduced.

Common Situations

Important Notice

This document is intended as general guidance only and does not constitute legal, safety, or compliance advice. It does not replace any statutory obligations, manufacturer instructions, or the requirements of relevant legislation including PUWER, the Control of Vibration at Work Regulations 2005, or HSE guidance on hand-arm vibration where applicable. Organisations are responsible for determining appropriate inspection intervals, exposure limits, and procedures for their own equipment and circumstances. Earlsmere Limited accepts no liability for any loss or damage arising from reliance on this document.