Repair
313540L
45
Inlet Fluid Strainer Screen
The inlet strainer at each proportioning pump filters out
solid matter that can plug the inlet check valves. Inspect
the screens daily as part of the startup routine, and
clean as required.
Isocyanate can crystallize from moisture contamination
or from freezing. If the chemicals used are clean and
proper storage, transfer, and operating procedures are
followed, there should be minimal contamination of the
A-side screen.
NOTE: Clean the A-side screen only during daily
startup. This minimizes moisture contamination by
immediately flushing out any isocyanate residue at
the start of dispensing operations.
1. Close the material supply valve at the pump inlet to
prevent material from being pumped while the
strainer plug (C) is removed.
2. Place a container under the strainer base to catch
drain off when removing the strainer plug.
3. Remove the screen (A) from the strainer manifold.
Thoroughly flush the screen with gun cleaner and
shake it dry. Inspect the screen for blockage. No
more than 25% of the mesh should be restricted. If
more than 25% is blocked, replace the screen.
Inspect the strainer gasket (B) and replace as
required.
4. Ensure the pipe plug (D) is securely screwed into
the strainer plug (C). Install the strainer plug with the
screen (A) and gasket (B) in place and tighten. Do
not overtighten. Let the gasket make the seal.
5. Open the material supply valve, ensure that there
are no leaks, and wipe the equipment clean.
6. Proceed with operation.
* Fluid filter screen (within 161c) replacements:
Change Hydraulic Fluid and
Filter
See Table 8 for recommended frequency of oil changes.
NOTE: Change break-in oil in a new unit after first
250 hours of operation or within 3 months, which-
ever comes first.
Table 8: Frequency of Oil Changes
1. Relieve pressure, page 28.
2. Allow hydraulic fluid to cool.
F
IG
. 15. Y Strainer Components
Part
Description
26A349 KIT, filter, replacement; 2 pack
26A350 KIT, filter, replacement; 10 pack
187758 Replacement gasket
Ambient
Temperature
Recommended
Frequency
0 to 90°F
(-17 to 32°C)
1000 hours or 12 months,
whichever comes first
90°F and above
(32°C and above)
500 hours or 6 months, which-
ever comes first
161c
A*
D
C
B
Содержание Reactor H-VR
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