9600 Service Manual - gmecorp-usa.com

Mechanical Assemblies 19
REAR CASTERS
Unlike the front wheels the two rear wheels have three modes of operation. All
three modes of operation are selected by steering pedals located above each
rear wheel. Engaging either pedal drives a cam operated actuator shaft that
operates both rear wheels. The following modes of operation are selectable:
Free Swivel Mode - allows the rear wheel's casters to move in any direction and
the wheels turn freely.
Steering Mode -locks the rear wheel casters in the forward steering position or
the lateral (side-to-side) steering position. The forward steering position improves
tracking down corridors and steering around corners and the lateral steering
position improves tracking during side-to-side positioning in the operating room.
Lock Mode - locks the caster in its current position and engages a brake pad
which stops wheel movement.
Older Versions
Steering pedals on -01 versions operate in reverse from later versions. A lateral
(side-to-side) movement is standard on all systems except the -02 version. The -
02 version of the Surgi-glide I steering system does not have side scan.
The lateral (side-to-side) feature may be engaged on rear casters equipped with
side scan, by placing the pedal in steering mode while the rear casters are
pointed perpendicular to the Mobile C-Arm.
FRONT CASTERS
Two front wheel casters support the Mobile C-Arm and allow movement in any
direction, much like a shopping cart. Refer to the Repair Replacement section
for an illustration.
BALANCE WHEEL
A balance wheel is located underneath the battery trays. The balance wheel has
been designed to prevent the Mobile C-Arm from tipping backwards and pinching
an operators foot or toe. Refer to the Repair Replacement section for an
illustration.