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heated air must be well-circulated and must not be
over 1800 F. Do not use a light bulb for drying. Also,
compressed air must not be used for drying, as the
pressure will rupture the element when wet. Re-
gardless of the drying procedure, always inspect
the element for damage prior to installation. (See
element inspection.)
Method 2: Cleaning the Element with Compres-
sor Air.
When cleaning the element with compressed air,
never let the air pressure exceed 30 PSI. Reverse
flush the element by directing the compressed air
up and down the pleats in the filter media from the
"clean side" of the element. Continue reverse flush-
ing until all dust is removed. Should any oil or
greasy dirt remain on the filter surface, the element
should then be cleaned by Method Number 1.
When the element is satisfactorily cleaned, inspect
thoroughly prior to installation. (See element in-
spection.)
Element Inspection.
1. Place a bright light inside the element to inspect
for damage or leak holes. Concentrated light will
shine through the element and disclose any
holes.
2. Inspect all gaskets and gasket contact surfaces
of the housing. Should faulty gaskets be evi-
dent, correct the condition immediately.
3. If the clean element is to be stored for later use,
it must be stored in a clean container.
4. After the element has been installed, inspect and
tighten. if necessary, all air inlet connections
prior to resuming operation.
PRIMARY SEPARATOR REPLACEMENT
When separator maintenance indicator shows red,
separator replacement is necessary. Use primary
separator replacement kit number 11173. Follow
the procedure explained below for separator re-
placement.
1. Remove all piping connected to the sump cover
to allow removal (return line, service line, etc.).
2. Remove cover bolts and lift cover from sump.
3. Remove separator element.
4. Scrape old gasket material from cover and
flange on sump.
5. Install gaskets.
6. Install element.
7. Inspect secondary separator element and re-
place if necessary (see Secondary Separator
Replacement) .
8. Replace sump cover and bolts.
MAINTENANCE
9. Reconnect all piping. Return line tube should ex-
tend to the bottom of the separator element or
no more than 1/2" up from the bottom. This will
assure proper coolant return flow.
10. Clean the return line strainer prior to re-starting
the machine.
SECONDARY SEPARATOR REPLACEMENT
When replacing the primary separator. check the
secondary separator for any holes or cracks that
would allow fluid to flow through and replace if nec-
essary. Use secondary separator replacement kit
number 13631. Follow the procedure explained be-
low for separator replacement.
1. Remove bolts holding separator to the sump
cover.
2. Remove separator element.
3. Scrape old gasket from sump cover.
4. Install new gasket.
5. Place new separator on the sump cover.
6. Replace bolts.
7. Follow steps 8, 9, and 10 in primary separator re-
placement instructions.
CONTROL SYSTEM ADJUSTMENT
Refer to Figures 5-3,
5-4
the Control System, it is necessary to determine the
desired operating pressure range and also the
maximum pressure at which your machine is to op-
erate. (This pressure must not exceed the maxi-
mum operating pressure which is stamped on the
machine serial no. nameplate.) The following ex-
planation applies to a typical installation with a de-
sired operating range of 100-110 PSI. This informa-
tion will apply to a machine with any other operat-
ing range excepting the stated pressures.
Remove the appropriate panels and covers to the
pressure switch. pressure regulator and Sullicon
control. With the shut off valve closed or slightly
cracked open, start the machine. Observe the line
pressure gauge and pressure switch contacts.
When the line pressure reaches 110 PSI, the pres-
sure switch contacts should open. If the pressure
switch contacts do not open or they open prior to
the desired pressure, the pressure switch setting
will require adjustment.
Adjust the Penn pressure switch #40427 setting by
turning the 9/16" nut (shown in Fig. 5-3) either
clockwise to increase the pressure setting, or
counterclockwise to decrease the setting.
After adjusting the desired maximum operating
pressure on the Penn switch, it is necessary to set
the differential between the pressure at which the
contact points of the pressure switch open (cut-out
pressure 110 PSI), and the pressure at which they
Section 5
and 5-5. Prior to adjusting
17
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