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Application
1.
In order to raise the boom extension, close the hydraulic cylinder's release valve. Then attach
the lever to the hydraulic cylinder and utilise it by pumping until the boom extension has reached
the desired height.
2.
The length of the boom can be extended by removing the bolt and nut placed in the same,
before then pulling the boom extension out until the pre-drilled holes overlap. Now reinsert the
bolt and secure it with the appropriate nut.
3.
WARNING! The maximum lifting capacity of the crane must not be exceeded. Infringement can
lead to severe damage and injuries. Please be aware that the maximum lifting capacity de-
creases with an increasing boom length.
4.
Position the crane in a way that the object to be lifted is placed directly beneath the hook.
5.
By slightly opening the release valve the hook can be lowered, before the item you want to lift
can then be attached to the hook. Once the item has been attached to the hook, make sure that
the hook's safety latch is completely closed. The close the release valve and utilise the lever to
raise the boom.
6.
Exercise extreme caution when lifting loads, ensure that they have been secured appropriately
and make sure that they do not swing. Inappropriately secured or swinging loads carry an in-
creased risk of falling off the hook.
7.
Once the item has been lifted out of its mount, lower the boom in order to be able to slowly and
carefully transport the item.
Maintenance
1.
Always make sure to check the entire device before each use in order to ensure that the crane
is in pristine condition.
2.
Make sure that the hook and chain are clean and thereby free from grease, dirt and debris.
3.
In case the hydraulic system of the crane does not operate correctly, air might have entered the
same. Please abide to the following steps in order to remove the air from the system:
1.
First make sure that the boom is in its home position (the boom is completely lowered).
2.
Remove the oil fill plug and pour some additional hydraulic oil into the tank.
3.
Now begin to pump until the boom has reached its maximum height.
4.
Open the release valve and press the boom down until the cylinder has been completely
retracted.
5.
Add some more hydraulic oil and reinsert the oil fill plug.
6.
Repeat these steps if necessary.
4.
We advise the use of a wet towel in combination and a mild detergent for cleaning purposes.
5.
In case of a decrease of lifting capacity, please check the device's oil level and replenish it if
necessary.
© by WilTec Wildanger Technik GmbH
http://www.WilTec.de
http://www.aoyue.eu
http://www.teichtip.de
Dezember 2019
Version
2
Seite 6
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