Maintenance and Repair
4 - 7
4.6
Moisture Indicator Recharging
Procedure
Note: Dryer shutdown is not necessary to perform the fol-
lowing procedure and can be accomplished without remov-
ing the entire assembly.
1.
Close the Moisture Indicator Supply Valve, and en-
sure that the Moisture Indicator has fully depressur-
ized through bleed valve [5] before proceeding to step
#2 for disassembly. (See following WARNING.)
WARNING!
Ensure that Moisture Indicator is fully depressur-
ized before attempting disassembly. Failure to
do so may result in serious personal injury and/or
equipment damage.
2.
Remove sight dome assembly (items [2], [4], [6], [7],
and [9]) from body [8] by turning screw [6] counter-
clockwise.
3.
Remove screw [6] from sight dome [2] by exerting
pressure on screw’s threaded end. Drain granular
indicator.
4.
Remove porous disc [4] and clean sight dome. (see
following CAUTION.)
CAUTION: Sight Dome [2] is an acrylic plastic. Do
Not clean with any type of solvent.
5.
Replace O-ring [9], and re-install screw [6] in sight
dome [2].
6.
Carefully pour new granular indicator into sight dome
[2]. Slide porous disc [4] into place.
7.
Replace O-ring [7] and re-install sight dome assembly
(items [2], [4], [6], [7], and [9]) in body [8].
8.
Fully open the moisture indicator’s gas supply valve
(not shown).
9.
Adjust bleed valve [5] until only a very slight constant
gas bleed valve is felt exhausting from valve’s bleed
port. Ensure that granular indicator remains motion-
less after final adjustment.
Figure 4.2
MOISTURE INDICATOR