Ingersoll-Rand HP1300WCU, Руководство по эксплуатации, техническому обслуживанию и каталог запасных частей

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Book 54757919 (5/02)
4. Insure that pressure is maintained at rated
pressure, then turn regulator adjustment
screw (H) counterclockwise until engine
speed just begins to be reduced.
Note: Turning regulator adjustment screw (H)
clockwise will raise pressure at full speed.
5. Close service valve (engine will slow to no
load or idle speed).
Normally, regulation requires no adjusting, but if proper
adjustment is lost, proceed as follows:
Before Starting Unit --
1. Atop separator cover at pressure regulator (PR)
loosen locknut (G) counterclockwise. Turn ad-
justment screw counterclockwise on full turn.
After Starting Unit --
2. Allow unit to warm up, then push “Service Air
Switch” on control panel.
3. Open and adjust service valve on outside of the
unit to obtain the rated operating pressure on
the discharge pressure gauge.
6. If necessary, repeat steps 3 and 4.
7. At pressure regulator (PR) tighten lock nut
(G).
8. To adjust the unloaded pressure to any
pressure between 80 PSI (550 kPa) and
the rated operating pressure, turn adjust-
ment screw (H) of pressure regulator (PR)
to obtain desired discharge pressure at full
load engine speed. Always lock and protect
pressure setting of adjusting screw (H) with
locknut (G).
9. Ensure unloader solenoid (US) acts to hold
pressure in inlet unloader (IU) after shut-
down. After start--up, the compressor
controller will open unloader solenoid (US).
Pressure Regulation
IU
US
PR
G
H
22054399
Note: If the rated operating pressure cannot be main-
tained with engine at full load speed, turn regulator
adjustment screw (H) clockwise and adjust service
valve until engine maintains rated full load speed.