GE M
EDICAL
S
YSTEMS
D
IRECTION
FK091075, R
EVISION
04
V
IVID
3N P
RO
/E
XPERT
S
ERVICE
M
ANUAL
Chapter 8 Replacement Procedures
8-113
8-6-9
Rear Wheel Replacement Procedure
NOTE:
This section describes the installation and removal procedure of the earlier-type of rear wheel
and the newer improved type. The installation procedure is the same for each type of rear wheel, as
described in the procedure below.
NOTE:
IMPORTANT - When replacing the earlier type with newer improved type make sure you replace
BOTH
rear wheels.
8-6-9-1
Tools
Use the appropriate flat and Phillips-type screw drivers and combination spanner as indicated in the
rear wheel replacement procedure.
8-6-9-2
Preparation
Shut down the Vivid 3N Pro/Expert ultrasound unit, as described in
Chapter 3 -
Installation
.
8-6-9-3
Rear Wheel Removal
Note:
The machine will remain stable, even after one wheel has been removed. However, for a safer
working environment, it is recommended to support the unit with wooden blocks or a jack.
WARNING: When BOTH rear wheels are being removed, the machine must be safely supported
on two wooden blocks (or on a jack capable of supporting the weight of the machine). Always
remove and replace one wheel at a time, before attempting to remove the second wheel.
1) Remove the Vivid 3N side covers and the rear cover, as described in
8-2-2-3 "Side Covers Removal
Procedure" on page 8-4
and the
8-2-4-3 "Rear Cover Removal Procedure" on page 8-7
.
2) Position the machine so that the wheel that is to be changed is not in contact with the ground, while
ensuring that the other three wheels remain on the ground. If replacing
both
wheels, support the
machine on two wooden blocks (or a suitable jack).
3) Loosen the shaft screw (see
Figure 8-97 "Rear Wheel Installation" on page 8-114
) and remove the
defective wheel from the machine chassis.
4) Proceed to the
8-6-9-4 "Rear Wheel Installation Procedure" on page 8-114
to install the new rear
wheel in place of the one removed.
5.) If replacing
both
wheels, repeat
step 3
above on the other wheel, then proceed to the
Rear Wheel
Installation Procedure
on page 8 - 114 to install the second new rear wheel and complete the rear
wheel installation procedure.
WARNING: Do not lean on the machine, or leave it unattended without support, if a wheel has
been removed.