Servicing And Cleaning; Replacing Friction Pads; How To Check The Wear Of The Brake Lining Of The - AL-KO AKS3004 Service Information

QUALITY FOR LIFE
show a high degree of wear.
Establish the diameter of the tow ball so that conclusions may be drawn as to
the wear of the brake lining of the AKS 2004/AKS 3004 friction pads (ball
4.

Servicing and Cleaning

4.1 Replacing friction pads (lateral friction pads)
This should be done when the arrow on the pressure plate has
reached or passed the "replace" marking on the housing
(Figure 15/3).
Uncouple AKS 2004/AKS 3004.
Remove protective caps (Figure 16/1) with the aid of a
screwdriver. Press out the worn out friction pads (fig. 16/2)
inwards and remove (use punch and hammer).
Insert new friction pads from below with the pin in the sleeve
and press in as far as they will go. (Pin will engage no tools
necessary). Re-insert shim rings, if present.

4.2 How to check the wear of the brake lining of the

friction pads The brake lining of the AKS 2004/AKS 3004
friction pads are subject to a certain degree of mechanical
wear after high mileage. To show when the friction pads are
worn, a wear indica-tor is built into the handle (Figure 17/1).
Couple the AKS 2004/AKS 3004 onto the towing vehicle (do
not activate stabilizer unit). If a green indicator is visible (figure
18/2) then the AKS 2004/AKS 3004 is in a new condition or
the wear of the ball and the AKS 2004/AKS 3004 is within
permissible limits.
If only a red indicator is visible (Figure 19/3) then this can have
the following causes:
AKS 2004/AKS 3004 is not worn but the tow ball has reached
its lowest limit of wear ( 49 mm or smaller)
AKS 2004/AKS 3004 and the tow ball show signs of wear
Tow ball is in a new condition (50 mm) but the brake lining of
the AKS 2004/AKS 3004 friction pads (Figure 14/2 and 3)
FIGURE 1 FIGURE 2 FIGURE 3 5