7-6 Adjustments
7.3 Caster Adjustment
There are 3 total braking casters and 1 direction braking caster of the main unit.
For total braking casters: tread the “On” pedal downwards by foot to lock the caster as shown in
figure 2, tread the “Off” pedal downwards by foot to release the caster. When locking or releasing
the casters, move the casters if necessary.
RELEASING LOCKING
For direction braking caster: when the pedal is in the same line as the forwarding direction, tread
the “On” pedal downwards by foot to lock the caster so as to move it along a straight line, as shown
in figure 2; tread the “Off” pedal downwards to release the caster so as to move it freely, as shown
in figure 1. If the “On” pedal fails to lock the caster, you can move the system forward or manually
adjust the caster, until a crack sound is heard and the caster is locked.