5. Remove the sliding tungsten shield. To reduce exposure when
removing the shield, Troxler recommends that the operator stand to
the side of the gauge. With a steel brush or rag, remove as much dirt as
possible from the cavity.
6. Clean the sliding tungsten block. Replace the sliding block with the
angled side up. If installed incorrectly, the source rod will not extend
into the measurement position.
7. Apply a light coating of Magnalube-G→ paste to the top angled
surface of the block. Do not grease any other surfaces on the sliding
block or in the sliding block area. Remove any excess lubricant.
8. Replace the bottom plate. Do not over-tighten screws in the
aluminum base. Ensure that the source rod moves up and
down freely.
Procedure – Source Rod Bearing Maintenance
If the source rod does not slide up and down freely, the source rod bearing
may require lubrication and cleaning. Lubricate the source rod bearing with
Magnalube-G paste.
NOTE
Troxler Electronic Laboratories, Inc. assumes no
responsibility for bearing life if lubricants other than
Magnalube-G are used.
1. Carefully remove the gauge top shell by first removing the four 7/64-
inch head screws. Tie the top shell to the source/index rod.
2. To catch any grease, place a rag or cloth under the vent valve located
below the grease fitting on the source rod tower.
3. Using a standard 16-oz. grease gun with a Magnalube-G cartridge,
apply five shots of lubricant or until all dirty grease is ejected from the
vent valve and clean grease is visible.
NOTE
The vent valve was not installed on earlier gauges. Instead, an
Allen-head screw was located below the grease fitting. On
these gauges, remove the Allen-head screw before applying
lubricant to allow the old grease to be ejected. Failure to
remove the Allen-head screw may result in severe mechanical
damage to the base assembly.
4. Remove any grease that was ejected. Reseat the top shell taking care
to properly seat the post gasket and replace the screws. Do not over-
tighten the screws.
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