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TL49J
SERVICE AND REPAIR
non adjustable. Hook the cable on to the compressor
bracket. Adjust to ensure even braking on the brake,
not on the compensator.
Check that both wheels run freely in the forward direc-
tion. Apply the handbrake; the brakes should start to
hold on at the second click. The gas strut will ensure
that the handbrake is fully applied. If the trailer is mov-
ing backwards, the handbrake will move further up.
It is imperative that the gas strut is working correctly.
Without the gas strut, the brakes will not hold the
trailer on a slope.
Adjust brakes if required and check that all nuts are
secured. Grease the coupling head (Multipurpose
grease to DIN 51825 KTA 3K), clean and oil all other
moving parts.
WHEEL BEARINGS
The wheel bearings are sealed permanently and require no maintenance or grease. The service life for
a set of bearings is in the region of 20000 to 30000 miles depending on running conditions. It is vital
that the brakes have not been overheated as this will cause the grease in the sealed ball bearings to
evaporate and the bearings will fail. Never re-use the flanged nut when re-fitting the brake drum as the
wheel may come off when towing.
When purchasing a brake drum, the bearings are normally included fitted to the brake drum. If replac
-
ing the bearings only, contact Snorkel or its local representative for further information. Always use a
new flanged nut and torque to between 280 - 300 Nm when re-fitting the drum.
Figure 3-33
: View of the grease nipple
locations.
