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Plough pre-season maintenance checklist

Use the following checklist to ensure rippers are ready for use and to minimise downtime

This article provides some basic information on pre-season and daily checks needed to keep deep rippers in optimal working conditions. The information assumes the plough is using the #9 Shank Assembly, however, the basic information is applicable to all ploughs in the Agrowplow range. More detailed information is available in the plough operators manual

Refer to your parts manual for part numbers if you are using a plough with a different assembly. 

On this page

Cracks in the swing arms and shank carriers

hydraulic shank swing arm and carrier

How to check

Visually check the swing arms and shank carriers for cracks. 

When to check

As part of a daily pre-start check or after hitting a rock reef

How to fix

Order replacement parts: 

Wear on the blades and shinguards

How to check

Visually inspect the blades and shinguards for signs of wear. Check that all the tungsten teeth are still present, that the tungsten grit has not worn down or off the top, sides, and undersides, and that the blade and shinguard body has not been worn down. 

When to check

As part of a daily pre-start check or pending conditions. 

How to fix

Re-apply tungsten grit if the blade or shinguard body is not yet worn. Otherwise, order replacement parts: 


Lift cylinders phased

How to check

Fully lift and lower the wheel arms, then hold on relief for 2 to 3 seconds. Repeat this process 3 times to phase all the wheel lift cylinders.

Lift the plough to the maximum height at the end of each row. 

When to check

As part of a daily pre-start check and a full lift at the end of each row. 


Shank carrier mounting bolts

How to check

Use a socket wrench to check the bolts are properly secured. 

When to check

Once per week or when any bolt is replaced. 

How to fix

Tighten the bolts with a 30mm socket wrench. See Agrowplow Torque Guide for more information. 

Air in the hydraulics

purge hydraulic air testHow to check

Lower the hydraulic pre-charge to 0PSI and lean with your body weight on the shanks. The shanks should be tight and not break back when you apply your weight. 

When to check

As part of a daily pre-start check and periodically though the day as the pressure will change significantly with ambient temperature. 

How to fix

See: how to purge air from the hydraulics

Hydraulic cylinder gland cap secure

How to check

Visually inspect the cylinder gland caps to make sure the tack weld on the cap is present and secures the cap. 

When to check

As part of the daily pre-start check. 

Hydraulic pressure

How to check

Visually inspect the pressure gauge to ensure the pressure is within acceptable limits.

Note: the following values are for the #9 Hydraulics Shank working in a reasonably clean country. See Hydraulic Shank Operational Limits in the operator's manual for more information.

Accumulator pre-charge Minimum pressure Maximum pressure
115 bar (1660psi) 125 bar (1800psi) 150 bar (2200psi)
140 bar (2030psi) 145 bar (2100 psi) 165 bar (2400psi)

When to check

Periodically throughout the day. 

Nitrogen bottles charged

How to check

Pre-charge the hydraulic system to above the pre-charge pressure in the accumulator. Then slowly release pressure from the system and watch the gauge for when it changes speed. 

See Accumulator Pre-Charge Pressure and Testing in the operators manual for more information. 

When to check

As part of the pre-season check. 

How to fix

Use a nitrogen charge kit to recharge the bottles. The recommended charge is 120-140 bar. 



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