Maintenance and Care
n To remove a drive wheel, loosen the 4 Allen head
screws in the middle of the wheel (Figure 47) and re-
move the wheel.
n If the inner tube of a drive wheel needs to be replaced,
loosen all Allen head screws on the inside of the rim and
pull apart the two-piece rim.
The defective inner tube is now freely accessible and can be
replaced.
Figure 47 Disassembling the drive wheel
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To change the tyre of a caster wheel, proceed as follows:
n To remove the caster wheel, loosen the axle screw with
a size 6 Allen key (see Figure 48, item 1) and pull out
the axle.
n Loosen all Allen head screws (see Figure 48, item 2)
and separate the two-piece rim.
The defective inner tube is now freely accessible and can be
replaced.
Figure 48 Disassembling the caster wheel
1 Axle screw
2 Allen head screw
02/2010
B600