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TOW BAR AND OVERRUN BRAKE
Coupling head check
Check coupling head for wear and correct operation.
Check the wear indicator (use within the "+" range
only).
Check the coupling head fastenings (see arrows,
Figure) at regular intervals for firm seating.
Brake play check
The check is carried out visually on the stroke (x) of
the overrun coupling.
As soon as this is more than 50 mm when the brakes
are applied, adjust the wheel brakes.
Check towbar, handbrake lever, spring actuator,
reversing lever, linkage and all movable parts for ease
of movement.
Height adjustment facility check
After every adjustment the clamping nuts must be
tightened and secured with the spring elements.
Tightening torque:
M 24 = 250 - 350 Nm
M 32 = 350 - 400 Nm
Check tight fit of the clamping nuts and correct
positioning of the adjustment facility.
Cable check
Check the safety cable for damage.
Check the Bowden cable on height adjustable tow bar
for damage.
After the first run, then every 2,000
kilometres.
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