Sage Acoustic Fluid Logger III, Reference Manual

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Sage Technologies
34
Charge Hose - Maintenance
The charge hose that is used to charge the CO
²
bottle may occasionally need a change of its
internal valve core, if the hose seems to be leaking air during a charge.
To determine if there is a leak in the charge hose, first, make sure the hose contains a Teflon
washer in the large end connector, and that the large end connector is tightened securely to the CO
²
bottle
with an adjustable wrench. Insert the charge hose in the gun. If after removing the charge hose from the
gun, gas continues to exit from the charge hose, the valve core will need to be changed. Use one of the
valve cores in the gun repair O-ring kit supplied at the time of purchase.
Carefully remove the charge hose tip from the charge hose, with the tip pointing downward, as
shown below. Inside the tip, there will be a large o-ring, a flat washer, and a small o-ring. Save these to be
re-installed later. (If they are missing or damaged, you will need to order a charge hose tip kit.)
With the gun maintenance tool, unscrew the internal valve core from the end of the charge hose,
and replace it with a new valve core. Hand tighten securely. Then, rebuild the charge hose tip, as shown
below, first placing the small o-ring in the bottom of the tip, followed by the flatwasher and then the
larger o-ring. Insert the end of the charge hose into the tip and hand tighten securely.
CO² Bottle Set-up
Often the compressed gas bottle is fitted with the charge hose in the shop, and transported to the
field with the hose attached. To set up the compressed gas bottle, first, make sure the bottle contains CO
²
.
A simple rule of thumb when filling the 2.5 pound bottle supplied with the Acoustic Fluid Logger System
is to weigh the empty bottle, then fill it with 2.5 pounds of compressed gas.
When attaching the charge hose, first place the Teflon O-ring (attached to the charge hose at time
of sale) is inside the charge hose connection on the large end of the black fill hose. Then, tighten the hose
connection onto CO
²
bottle with an adjustable wrench.