Whoopy User Guide 
4. Operation
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© 2008 Atlas Revalidatie Techniek B.V. 
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44.. OOppeerraattiioonn 
Hexagonal key (Allen key)s number 4 and 6 are required for the initial settings. The other 
adjustments can be made by hand. The adjustments should be made when the user is not using 
the walking aid. 
4.1 Collapsing the frame 
• Storing and transporting is easier due to the fact that the 
walking aid is collapsible. 
• Before the walking aid can be collapsed, the handgrips must 
be turned aside: use hexagonal key (Allen key) number 6 to 
slightly loosen the adjusting screw at the back of the bar and 
swing the bar up (see illustration 7 and section 4.3, Width). 
Retighten the adjusting screw. Do the same thing with the 
other handgrip. 
• The walking aid can now be collapsed by pulling up the top bar 
at the back of the walking aid: pull on the top bar with one 
hand and keep the lower bar in place with the other hand. 
• When you unfold the walking aid, hold on to both bars at the 
back of the walking aid. Pay attention to avoid your fingers 
from becoming jammed between the two bars. 
4.2 The directional locks 
• The directional locks can be used if the child has difficulty 
steering while walking. 
• The directional locks (see illustration 4) are located on top of 
the two front wheels. Hold on to the walking aid with one hand 
and pull out the directional lock pin on one of the wheels with 
the other hand, and give it a quarter turn. As the pin is turned, 
the raised edge falls into a small groove. As the swivel wheel is 
turned, the pin automatically falls into the hole destined for this 
purpose, thus locking the swivel wheel. Verify that the locking 
mechanism is securely in place. 
To remove the directional lock, the pin must be pulled back up 
and turned a quarter turn thereby preventing the pin from 
dropping back into the small hole. 
Attention: 
Adopt a comfortable posture while making use of the hexagonal key (Allen key)s and the levers. 
Verify that everything is securely fastened after making the adjustments. 
Illustration 3: 
Collapsing the frame. 
Illustration 4: 
The directional lock.