Sullair 02250175-949 R01, User Manual

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1600C LP USER MANUAL SECTION 5
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still closed and the “HIGH/LOW” switch in
the “LOW” position, adjust the low-pressure
back-pressure regulator so the service pres-
sure is between 100 to 150 psig (6.9 bar to
10.3 bar) with the engine at 1400 rpm. Open
the service valve to load the compressor to
maintain 100 psig (6.9 bar) discharge pres-
sure. Operating speed should be 1800 RPM
on the instrument panel. If not, repeat step,
but adjust the unload service pressure up or
down as needed until 100 psig (6.9 bar) is
maintained when engine speed is 1800 rpm.
3. For 200 psig (13.8 bar) “H” machines, turn
the “HIGH/LOW” switch to the “HIGH” posi-
tion. Close the service valve and set the “HI”
pressure control regulator to maintain 215 to
225 psig (14.8 to 15.5 bar) discharge pres-
sure. Open the service valve to maintain 200
psig (13.8 bar) and check for 1800 RPM full
load speed. If lower speed is observed, raise
the setting of the low pressure control regu-
lator until rated speed is achieved.
SEPARATOR ELEMENT REPLACEMENT
Refer to Figure 5-6 . When fluid carry-over is evident
after the fluid return-line strainer and orifice, as well
as the blowdown valve diaphragm, have been
inspected and found to be in satisfactory condition, or
if the separator restriction gauge reads in excess of
10 psig (0.7 bar), separator element replacement is
necessary. Follow the procedure explained below:
1. Remove all piping connected to the receiver
tank cover to allow removal (return line, ser-
vice line, etc.).
2. Remove the fluid return line from the fitting in
the cover.
3. Remove the twelve (12) 3/4 x 3”in capscrews
and lockwashers and lift the cover from the
receiver tank with the minimum pressure/
check valve in place.
4. Remove the separator element.
5. Scrape the old gasket material from the
cover and the flange on the receiver tank. Be
sure to keep all scrapings from falling inside
the tank.
6. Install the gaskets.
7. Make sure grounding staples are attached to
separator gasket.
DO NOT REMOVE STAPLES.
8. Replace the receiver tank cover. Install the
twelve (12) 3/4 x 3”in capscrews and lock-
washers in finger-tight, then gradually tighten
in a criss-cross pattern in 4 to 5 steps.
Always tighten the capscrews alternately at
opposite sides of the cover. Never tighten
capscrews adjacent to each other. Torque
capscrews to 251-266 ft. lbs (340-360 Nm).
9. Reconnect all piping. The fluid return line
should extend to the bottom of the separator
element or no more than 1/16 in (1.6 mm) up
from the bottom. This will assure the proper
fluid return flow.
10. Clean the fluid return line strainer and clear
the orifice prior to restarting the compressor.
Figure 5-6: Separator Element Assembly
1. Receiver Lid
2. Separator Element
3. Receiver Tank
* Replacement kit P/N 250034-082