Bil-Jax Wheelchair XLB-4232 DC Benutzerhandbuch

The XLB-4232 DC Boom Lift is equipped with a manual emergency lowering valve that 
can lower the basket in case of a power failure or an emergency situation. The emergency 
lowering valve is located at the base of the lift cylinder.  

Before lowering, it may be necessary to manually rotate the boom if it is over hanging an 
obstruction. See the following section for this procedure. 

To lower the work basket, push and turn the knurled knob counter-clockwise to desired 
speed of descent (Figure 3-4). After lowering, press and turn the knob clockwise to close 
the valve. 

EMERGENCY

LOWERING

KNOB

 

The boom lift is equipped with an emergency rotation handle (crank) that can be used to 
rotate the boom in case of a power failure or other emergency situation. 

Use the following procedure to manually rotate the boom: 

1.  Loosen the crank stowage tube thumbscrew (Figure 3-5). 

2.  Remove the crank. 

3.  Install the crank on the hex end of the worm gear drive screw as shown. 

4.  Turn the crank handle to rotate the boom. 

CRANK

STOWAGE

TUBE

CRANK

IN USE

THUMBSCREW