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Maintenance
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4
1. Ensure that the pressure to the air inlet of the filter/regulator from air line does not
exceed the maximum pressure specified in the instructions.
2. Before applying inlet pressure, pull the knob upwards until you hear the click, turn it
counterclockwise to release all force on the regulating spring. Then push the knob
downwards until you hear the click.
3. Air inlet pressure can be approached by turning the knob. Pull the knob upwards
until you hear the click, turn it clockwise to increase the pressure or counterclockwise
to decrease the pressure. When the desired pressure is obtained, pull the knob
downwards until you hear the click to secure the knob.
4. The set air pressure can be read on the pressure gauge.
5. Always approach the desired pressure gradually, either from a lower pressure to a
higher pressure, or from a higher pressure to a lower pressure.
6. The filter/regulator is equipped with a manual drain. Turn the drain valve to drain
accumulated liquids inside the bowl. Take care to drain the liquids from the bowl
whenever necessary and always keep the liquids below baffle.
7. The filter element should be replaced when the pressure drop across the element
exceeds 15 psi. When an excessive pressure drop across a saturated but
uncontaminated element occurs, it may indicate that the tool being operated exceeds
the maximum flow rate (CFM) of the filter
(See Specifications)
. Refer to the
maximum flow rate of your filter/regulator and make sure that the required CFM of the
tool is within the maximum flow rate of your filter/regulator for best tool operation.
OPERAtING INStRUctIONS (See Figure 2)
5
figure 1
DIAGRAMS
Gettin
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Specifica
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Maintenance
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Maintenance Steps
1
disassembly (See figure 2)
• Filter/regulator can be disassembled without removal from air line.
• Shut OFF inlet pressure. Reduce pressure in inlet and outlet lines to zero.
• Turn knob fully counterclockwise.
• Unscrew the clamp ring to force unit out of yoke.
• Disassemble in general accordance with the parts illustrated in Figure 2. Do not
remove the drain unless replacement is necessary. Remove and replace only
when drain malfunctions or converting to automatic drain.
2
cleaning(See figure 2)
• Clean parts with warm water and soap. Do not submerge knob type bonnets in
solution as lubricant will be removed.
• Rinse and dry parts. Blow out internal passages in body with clean, dry,
compressed air. Blow air through filter element from inside to outside to remove
surface contaminants.
• Inspect parts. Replace those found to be damaged.
3
assembly (See figure 2)
• Lubricate O-rings, adjusting screw threads, and valve stem and body with
O-ring grease.
• Lubricate bonnet threads with a small amount of anti-seize compound .
• Assemble unit as shown in Figure 2. Screw baffle on rod until contact is made
with element, then tighten an additional 1/4 turn.
• Assemble "Sight Glass Assy." to bowl. Apply a 2 to 4 pound clamping force
to upper and lower sigh glass brackets to pull brackets together, then tighten
screw (A) per torque table.
• Torque these parts listed in Torque Table.
• Turn the bowl into body until arrowhead is in line with or to the right of the
arrowhead on body.
torque table
Parts Ref. No.
Inch Pounds (N-m)
Bonnet
550 to 600 (62 to 68)
Nut
20 to 25 (2.3 to 2.8)
Screw
16 to 20 (1.8 to 2.3)
MAINtENANcE
