Maintenance
306878ZAA
9
Maintenance
Flushing
Refer to
ing procedure.
Cleaning
When changing fluids or colors, the regulator should be
disassembled and cleaned. Regular cleaning and
inspection, and lubrication of the piston (15) and piston
packing (10) are necessary to keep the fluid regulator
working properly.
1.
Relieve all the air and fluid pressure in the system.
2.
Remove the regulator from the system.
3.
Disassemble the regulator. See
on page 10.
Clean and inspect all parts.
Repairing
Normally, only the ball support (21), seat (20) and piston
packing (10) will ever need replacement. Repair Kit
220139 is available to replace these parts. See
on
page 10.
1.
Lubricate the piston packing (10), piston (15), and
spring locater (11) with lithium base grease.
2.
Place the washer (19) over the pointed end of the
piston (15).
3.
Place the packing (10), with its lips facing down,
over the pointed end of the piston (15) and against
the washer (19).
4.
Insert the piston (15) into the bottom of the cylinder
(7) and gently work it into place.
5.
Reassemble the remaining parts in reverse order of
disassembly. Torque the valve seat (20) into the
housing to 175-200 in-lb (20-22 N•m). Over-tighten-
ing could break off the hex portion of the seat.
COMPONENT RUPTURE HAZARD
To reduce the risk of serious bodily injury, including
fluid injection or splashing in the eyes or on the skin:
•
page 7 before adjusting, cleaning, repairing, or
removing the regulator from the system.
•
Never
pressurize the system with the fluid regula-
tor adjusting knob removed.
•
Never
completely remove the adjusting knob
when system pressure is present.
NOTICE
Use special care when handling the hard carbide
portions of the piston (13) and seat (12). Damage
will cause poor operation and leakage.
