Appendix C–10
CAUTION
The use of any unapproved cleaning agents such as
methyl-ethyl-ketones, amines and methylene chloride
will damage the top shell and void the warranty.
LUBRICATING THE SOURCE ROD
If the source rod does not slide up and down freely, the source rod
bearing may require lubrication.
Carefully remove the gauge top shell and slide it up, out of the
way. To keep it out of the way, tie the top shell to the handle.
To catch any grease, place a rag or cloth under the vent valve
located below the grease fitting on the source rod tower.
Using a standard 16-oz grease gun loaded with a Magnalube
cartridge, apply 5 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 this screw may result in
severe mechanical damage to the base assembly.
Re-assemble the gauge.
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