30
308986
Shutdown and Care of the System
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
follow the
Pressure Relief Procedure
on page 23 whenever you are instructed
to relieve the pressure.
System Shutdown
To shut the system down, shut off the air to all pumps,
trigger the dispensing valve into a grounded metal
waste container. Close the mixer manifold valves.
Flush all the mixed fluid out of the mixer manifold,
hoses and dispensing equipment. See page 21. Then
follow the
Pressure Relief Procedure
, page 23.
Pump Inlet Strainer Cleaning
If the fluid pressure from the feed pump to the propor-
tioning pump cannot be maintained on the propor-
tioning pump intake gauge (J1), check and clean the
strainer (V). See Fig. 19, page 26.
1.
Relieve all feed pump pressures.
2.
Remove “Y” strainer, clean, and replace.
3.
Restart feed pumps and check for open inlet feed
lines.
Clean Static Mixer
Visually inspect the static mixer (G)
weekly
. Replace
the static mixer if clogged or damaged. See Fig. 21.
1.
Follow the
Pressure Relief Procedure
on page 23.
2.
Remove the hose (H) from the static mixer (G).
3.
Unscrew the static mixer (G) from the mix man-
ifold.
4.
Push the mixer element out of the static mixer by
inserting a wooden dowel at the adapter (I) end.
Clean all parts with a compatible solvent, and
reassemble.
5.
Install the static mixer (G). The arrow on the static
mixer must point down. Apply tape and sealant to
the threads of the static mixer.
Fig. 21
1
2
8352A
H
I
G
Arrow must point down.
Apply tape and sealant to threads.
1
2
Pump Throat Packing Nuts or Cup Care
Keep the throat packing nuts or cup (JJ) filled with
appropriate lubricant and check the tightness of the
packing nut weekly. See Fig. 22.
Always follow the
Pressure Relief Procedure
, page
23, before adjusting the packing nut. The packing nut
should be tight enough to prevent leakage; no tighter.
Too tight an adjustment causes the packings to bind or
wear prematurely and leak.
Fig. 22
JJ
Summary of Contents for HYDRA-CAT FIXED RATIO
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