IWT Eventa L Tandem, Руководство пользователя

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7.3.2 Coupling Unit Service Intervals
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The general condition of the overrun coupling unit should be checked monthly.
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To minimize wear on your towing ball and coupling head, clean out the cup in the coupling
head monthly and apply new grease.
Service as follows every 3000 miles or 6 months, whichever is the sooner:–
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Thoroughly examine all moving parts for wear and correct functioning.
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Grease the drawtube bearings by means of the grease nipples.
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Clean and grease bearing parts and pivot pins.
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Ensure correct functioning of all pivot pins and levers and oil monthly.
7.3.2.1 Drawtube Reaction Test
Fully apply the handbrake lever. Push the coupling head as far back into the housing as possible. (It
will move slowly under steady pressure.) On release, the coupling head should slide gradually
forward under the pressure of the gas-filled shock absorber. If it either fails to return to the forward
position or returns immediately, contact your authorized distributor for advice.
7.3.2.2 Checking the Coupling Head for Excessive Wear
With the coupling disconnected from the tow ball, observe the position of the wear indicator lug
relative to the “MAX” line. Then, with the coupling attached to the tow ball, re-check the position of
the lug (see diagram). The gap between the base of the lug and the “MAX” line should be greater. If
it is unchanged, excessive wear has taken place on the coupling head, the coupling ball, or both.
If this is the case, make a further check using a new 50mm
ball.
If the gap is still unchanged the coupling head is excessively
worn and should be replaced. However, if the gap is greater,
your original 50mm ball should be replaced.
Note: If you need to replace your coupling head, carry out
the check once more, as your tow ball may also need to be
replaced. It is recommended that the coupling head and ball
are replaced at the same time, as this will extend the service
life of both components.
7.4 Jockey Wheel
The jockey wheel should be checked monthly. Any damaged or worn parts should be replaced
immediately. Lubricate the wheel spindle and screw thread every 6 months.
7.5 Leaf Springs
Check the tightness of the self-locking nuts on the U bolts every 1000 miles or 2 months. Or at every
brake service check, whichever is sooner. Tightening torque: 140 Nm.