•
Maintenance has to be performed regularly in order to guarantee the secure and correct func-
tion of the device. It, however, should only be performed by specially trained personnel. In
case of questions please contact the producer or an authorised service partner.
•
Please note that this product is not suited for lifting aircraft engines or other aircraft parts.
•
Do not try to move the crane while it is carrying weight with its boom in a raised position as
this shift in weight greatly increases risk of the crane tipping over.
•
Only use the crane on even ground capable of withstanding the weight in order to avoid cave-
ins and inadvertent rolling. This at the same times minimises the swinging of the load, which in
turn minimises the risk of injury.
•
Make sure that no one else is standing in the path of the crane when moving the same.
Application
In order to raise the boom extension, close the release valve of the hydraulic cylinder. Then
attach the lever to the hydraulic cylinder and pump it until the boom extension has reached the
desired height.
The boom length can be extended by removing the bolt and nut placed therein, before then
pulling the boom extension out until the pre-drilled holes overlap. Now reinsert the bolt and se -
cure it with the appropriate nut.
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
decreases with an increasing boom length.
Position the crane in a way that the object to be lifted is placed directly beneath the hook.
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 safety latch of the hook is completely closed. The close the release valve and utilise
the lever to raise the boom.
Be extreme cautious 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.
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
Always make sure to check the entire device before each use in order to ensure that the crane
is in pristine condition.
Make sure that the hook and chain are clean and thereby free from grease, dirt and debris.
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:
o
First make sure that the boom is in its home position (the boom is completely
lowered).
o
Remove the oil fill plug and pour some additional hydraulic oil into the tank.
o
Now begin to pump until the boom has reached its maximum height.
o
Open the release valve and press the boom down until the cylinder has been com-
pletely retracted.
o
Add some more hydraulic oil and reinsert the oil fill plug.
o
Repeat these steps if necessary.
We advise the use of a wet towel in combination and a mild detergent for cleaning purposes.
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
Item 62025
Page 4
http://www.WilTec.de
http://www.aoyue.eu
03 2021
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