Welch Allyn Tycos - Classic Wall and Mobile Aneroid Gauges; Opening, Removing, and Replacing Parts

Welch Allyn Inc. Aneroid Sphygmomanometers Service Manual
Revision A
Welch Allyn Inc. Page 16 of 40
Section 4: Classic Wall and Mobile Aneroid Gauge
4.1 Opening/Removing and Replacing Parts of the Wall
and Mobile Gauge.*
7670 series Wall and Mobile Aneroid.
1. Remove the bezel from the case by prying the 4 tabs up and
pulling out on the bezel.
2. Remove the crystal and aside.
3. Remove the pointer by using the pointer removal tool (T105243B)
visually inspect, straighten and aside.
4. Remove the screws of the dial by using the torque driver
(T112459) and remove the dial and aside.
5. Remove the screws that are holding down the mount to the case
of the gauge by using a Phillips head screwdriver.
Reassemble in reverse order
* - See section 8.3 for exploded view drawing of 7670 Series Wall
and Mobile Aneroid.
Classic Wall and Mobile Aneroid.
1. Remove crystal by pushing down and out at the top. Set crystal
aside.
2. Remove pointer by using the pointer removal tool (T105243B).
Inspect, straighten and aside pointer.
3. Remove the dial by removing the screws with the torque driver
(T112459) and aside.
4. Remove the movement and the mount by unscrewing the
standoffs and removing them from the case.
Reassemble in reverse order
* - See section 8.4 for exploded view drawing of the Classic Wall and
Mobile Aneroid.