Graco PrecisionFlo 233678, Инструкция-перечень запасных частей

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Service
Closer Service
WARNING
SKIN INJECTION HAZARD
To reduce the risk of a serious injury,
including an injection injury, follow the
Pressure Relief Procedure on page 5
before checking or servicing the equipment and
whenever you are instructed to relieve the pres-
sure.
1. Relieve the pressure in the system.
2. Disconnect the electrical cable (C) from the Meter-
ing Valve connector (E). See Fig. 2, page 4.
3. Disconnect the fluid lines from the metering valve
fluid inlet (A) and outlet (B).
4. Disconnect the closer air line from the closer air
inlet (G). See Fig. 4.
5. Unmount the Metering Valve and take it to a clean
work area with a compressed air supply.
6. Connect a compressed air supply to the closer air
inlet (G). Actuate the cylinder with about 50 psi
(3500 kPa, 3.5 bar) air pressure to retract the
closer rod and keep the closer spring compressed.
WARNING
MOVING PARTS HAZARD
The valve air cylinder is spring-loaded
and parts may fly out or spring apart
when the valve is disassembled and
cause serious injury. During service procedures
that will expose internal meter parts, wear protec-
tive eyewear and keep the closer spring com-
pressed, as instructed in step 6.
7. Remove the eight screws (3) from the closer
assembly (2), and remove the closer assembly.
See Fig. 4.
8. Slowly relieve the air pressure from the Metering
Valve
to release the closer.
9. Disconnect the air line from the closer air inlet (G).
10. Press down on the cylinder body cover to prevent
the parts from springing apart, and remove the
screws (107) from the closer cover. See Fig.6.
11. Remove the cylinder cap (111) from the cylinder
(108).
12. Remove the o-rings (103) from the cover (104).
WARNING
MOVING PARTS HAZARD
The rod extension (102) and spring cup
(112) may fly apart as the rod extension
is unscrewed from the cylinder rod (R),
due to the pressure from the spring (113). Wear
eye protection to reduce the risk of serious injury
from moving parts.
Fig. 4
2
G
TI1392A
3
Fig. 5
110
102
TI1392A
107