AL-KO recommends cleaning the friction pads after every journey to prevent a build up of deposits on the towball, which can lead to a creaking/groaning whilst towing. This is particularly common when using a diesel vehicle. Simply remove the friction pads and wipe them with a fine grade emery paper to remove any build up.
Remove all paint from towball before use with AKS, and ensure towball is grease free and smooth.
Friction pads should be checked regularly to ensure they are in good working order.
CHECKING WEAR INDICATORS
1- Wear indicator for front & rear friction pads and the coupling mechanism.
2- Wear indicator for side friction pads. These friction pads are in a good order.
3- Wear indicator for side friction pads. These friction pads are worn out and need replacing.