Section H – CD14 Tester Maintenance
CD14 Tester & CD AutoPlus Autosampler User Guide—75-108-800 Rev. B—31 May 2021
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EAR99 technology subject to restrictions on cover page.
O-Ring Inspection and Replacement
To replace O-rings, use the O-ring replacement tool (74-107-
003).
1.
The top O-ring can be removed using the hook end
of the tool and sliding it to the O-ring through the slot
in the spindle.
2.
The bottom O-ring requires that the O-ring first be
pushed out, using the small dowel pin. With the O-
ring pushed out slightly toward the center of the
spindle, it can be hooked using the tool.
3.
When replacing the O-rings, use the tool to guide
each O-ring into place; the spindle shaft can be
used to help roll it into place.
NOTE: The tension of the spindle shafts in the
spindles can be adjusted by the application of
silicone grease. If the shafts become too loose after
the application, they can be tightened by wiping the
shaft with ethanol to remove some of the grease.
Belt Replacement
Teledyne Hanson recommends replacing all belts at one time.
1.
Grasp the drive head cover on both sides and lift
straight up to remove the cover.
2.
Use a 5/32 hex key to loosen the tensioners – do
not remove the tensioner.
3.
Loosen and remove all belts from the spindles.
4.
The two small belts going to the center positions
may require the pulley to be loosened and lifted from
the spindle to change the belt.
5.
Route the new belt around the spindles and
tensioners in the same manner as the old belts.
6.
Readjust tensioners. All belts should have about
6 – 10 mm of deflection before they become tight.
Test this by pushing with your finger in-between
pulleys.
7.
Replace the cover and then press down until it pops
back into place.
