Maintenance Schedule

To prevent accidents stop the engine and remove the ignition key before attempting to carry out the daily maintenance procedures on the mower.

Check engine oil level

If the oil level is below the upper mark on the dipstick, top up with the correct grade of engine oil to the required level.

The oil should be MIL-L-2104C and have properties of API classification CD grades or higher.

SAE 10W - 30
SAE 10W - 40

Check engine radiator coolant level

WARNING: PREVENT ACCIDENTS - Avoid scalding. DO NOT remove the radiator filler cap unless the engine is cool.

System A

Turn the filler cap slowly to release system pressure before removing the filler cap completely. The coolant level should be 30mm (1.2") - 40mm (1.6") below the top of the filler neck. Top up with correct coolant mixture.

System B

Keep coolant between "Full" and "Low" when engine is cold.
Top up with current coolant mixture into the expansion bottle.

Coolant Mixture

When the anti-freeze is mixed with water, the anti-freeze mixing ratio must be 48 - 50%.

Air Cleaner

a) Filter blockage indicator

If you see RED in the Filter Blockage Indicator the air filter needs cleaning.

b) Cleaning the air cleaner:
Remove the air filter and tap it repeatedly with the palm of the hand to remove dust particles.
DO NOT damage the air filter by hitting it against a hard object.
Inspect the air filter for signs of damage.

IMPORTANT: PREVENT DAMAGE - Always replace a damaged air filter or damage to the engine will result. NEVER run the engine without the air filter correctly fitted.

Clean the inside of the cleaner dust bowl with a dry cloth and check that the dust boot is unobstructed.

Replace the air filter and assemble the dust bowl, with the dust boot facing downwards.

Clean Radiator Screen

Radiator primary screen Oil cooler Secondary screen

Clean the primary radiator screen

Clean the primary radiator screen. Check the oil cooler, secondary screen and engine radiator grille for debris and clean as necessary using a brush or airline.

Clean the radiator screen

Clean the radiator screen. Check the oil cooler and engine radiator grille for debris and clean as necessary, using a brush or airline.

IMPORTANT:

1. PREVENT DAMAGE - NEVER operate the mower with a damaged radiator screen or engine damage could result from overheating. Clean the radiator screen more regularly in dry conditions.
2. Always wear eye protection when cleaning the radiator with an airline.
3. Always blow the radiator out from the fan side.

Check Fuel Level

Top up as necessary with diesel fuel. Always top up before storing the mower over-night to prevent water condensation from contaminating the fuel.

Diesel fuel oil grade ASTM D975
Be sure to use a strainer when filling the fuel tank, dirt and sand in the fuel may cause trouble in the diesel injection pump and injectors.
Be careful not to let the fuel tank become empty, or air can enter the fuel system, necessitating bleeding before next engine start.

Check Hydraulic oil level

If the oil level is below the upper mark on the sight level gauge which can be viewed through the platform, top up with the correct grade of hydraulic oil.

WARNING : PREVENT DAMAGE - If there is noticeable hydraulic oil loss, the leakage source must be rectified before using the mower. NEVER operate the mower when the hydraulic oil level is below the bottom mark on the sight level gauge. NEVER operate the mower with contaminated oil.

Oil grade: ISO 46 hydraulic oil.
Never use multi-grade oils, should you be in any doubt please contact your Hayter Dealer. Using incorrect grades will cause premature wear of hydraulic components and invalidate the warranty.

Check Hydraulic hose-lines

Inspect hydraulic hose-lines for signs of wear or damage.

WARNING: PREVENT ACCIDENTS - ALWAYS replace worn or damaged hydraulic hose-lines immediately. DO NOT operate the mower with defective hydraulic hose-lines.

Inspect the mower for signs of oil leakage. Tighten fittings or replace seals as required.

Check fasteners

Check that all nuts, bolts and pins are secured correctly in place and in good condition.

Check safety devices

WARNING: PREVENT ACCIDENTS - Ensure that all safety guards, shields and protective devices are securely in place and in good working order.

Check tyres

Examine the condition of the tyres and check that inflation pressures are correctly.

WARNING: PREVENT ACCIDENTS - Ensure that damaged tyres are replaced. Ensure that tyre tread depths comply with road traffic regulations.

Tyre Pressures

Wheel Nut Torque Setting:
Front axle - 200Nm (148 Ibf.ft)
Rear axle - 54Nm (40 Ibf.ft)

Check Cutterblades

Ensure that each cutterblade is balanced. Use a screw driver with a round shaft to support the cutterblade throught its centre hole. Hold the cutterblade horizontal and then release. A balanced cutterblade will remain horizontal. If the cutterblade is not balanced the heavy end will rotate downwards. Regrind the heavy end until the cutterblade is correctly balanced.

Grease Points

(a) Grease all rear axle components
(b) Grease deck wheel axles
1) 2 - Front deck
2) 3 - Left/right deck

Grease type: Good quality medium grease
Use grease charts as per machine manual, example shown overleaf.

Check Forward /reverse pedal action

With the engine switched 'off', operate the forward and reverse travel pedals through the full range of articulation and ensure that the mechanism returns freely to the neutral position.

WARNING - PREVENT ACCIDENTS: Do not operate the machine if there are any signs of 'Stickness' in the pedal mechanism which prevents a free return to the neutral condition.

Operator presence controls

WARNING: PREVENT ACCIDENTS - Keep bystanders away when checking operator presence control interlock switches. DO NOT use the mower unless the operator presence controls work correctly as described below. If difficulties arise, consult your 'Hayter delaer'.

Operator presence seat switch

Sit on the operator seat and start the engine. Lower the cutterheads to the ground and engage the cutter drive in the forward direction. Rise from the operators seat and check that the cutting cylinders come to a stop after an initial 0.5 to 1 second delay. Repeat with the cutting cylinders running in reverse.

Cutter drive interlock switch

Stop the mower engine. Operate the cutter drive switch to the 'off' position and turn the ignition key to position 'I'. The cutterhead drive switch indicator light should illuminate.

Operate the switch to the 'forward' position. The indicator light should go out and the engine should not start when the ignition key is turned. Repeat for the 'reverse' position.

Parking brake interlock switch

Stop the engine. Engage the parking brake and turn the ignition key to position 'I'. The parking brake indicator light should illuminate.
Disengage the parking brake. The indicator light should go out and the engine should not start when the ignition key is turned.
Sit on the operator seat and start the engine. Release the parking brake. Rise from the operator seat and check that the engine stops.

Transmission neutral interlock switch

Stop the mower engine and remove the foot from the forward/reverse travel pedals. Turn the ignition key to position 'I' and the transmission neutral indicator light should illuminate. Application of light pedal pressure in a forward and reverse direction should cause the indicator light to go out. Take extreme care to ensure that the area around the mower is clear before checking that the engine will not start under this condition.