- 12 -
2.
Apply 60 psig air to end cap. The packing and bushing will be forced
out of their counter bores, which will result in an air leak.
3.
Remove air supply once the bushing and packing are forced out.
4.
Remove end cap, bushing, and packing from the actuator and repeat at
other end of actuator.
5.
Place red indicator cap over the actuator stem threads.
6.
Wipe stem clean. Lubricate new packings with Tri-Clover C137
lubricant.
7.
Slide new packing over the red indicator cap/stem with the "v" side facing the actuator.
Partially insert packing into smallest counter bore using a flat tool to assist the outer lip.
DO NOT DAMAGE OR ROLL THE PACKING LIP DURING INSTALLATION.
8.
Remove the red indicator cap. Place bushing on top of the packing. Push on the bushing
until outer flange is flush with the actuator.
9.
Repeat to the other end of the actuator.
ACTUATOR STEM NYLON LOCK REPLACEMENT
The Nylon Locking Pin located in the middle of the stem thread keeps the valve stem from
becoming loose due to vibrations. After every disassembly, the nylon locking pin must be
replaced. Punch out the old nylon pin with an
1
/
8
inch or smaller diameter punch. Insert a
new nylon locking pin.
ACTUATOR LUBRICATION
For optimum performance, lubricate once annually. Inject OCP-V1 into the unthreaded thru
hole in each end of the actuator. Roll actuator on a flat surface repeatedly to obtain uniform
coverage of lubricant. Do not over lubricate. This is not a remedy for actuator failure.
1.
Remove end cap from actuator. Separate clear stem protector
from the end cap. Fasten the end cap without stem protector to
one end of the actuator.
Air
CAUTION
To prevent personal injury, keep hands and tools out of
and away from valve bodies and stems when applying or
releasing air to an actuator. The actuator stem assembly
moves with extreme force and suddenness.
MAINTENANCE
CAUTION
To prevent personal injury, do not attempt to remove the
bushing or packing without the endcap fastened to the
actuator. The packing and bushing will be forced out of
the actuator under air pressure and will be trapped by the
end cap.
Содержание 741 Series
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