Book 35393065 (7/02)
34
( )
P175 -- 185 Speed and Pressure Regulator Adjusting Instructions
Before Starting
1.
At the Pressure Regulator (on service pipe
near receiver tank), remove the cover to
expose the adjusting screw. Loosen the
jam nut and turn screw counterclockwise
until tension is no longer felt at the screw.
Then, turn screw clockwise one full turn.
2.
Close service valve(s).
The engine idle and full speed settings are set and
sealed at the factory, and should not be adjusted.
Serious injury may result if the full speed is
increased. Removal of the seals without
authorization could affect the warranty. If speed
settings are lost due to engine fuel pump service
or other repairs, the speed settings can be reset
as follows:
3.
At air cylinder (A), loosen jam nut (B) on
adjusting rod (C). Turn rod (C) until it just
touches the piston inside of the cylinder.
This is determined by the movement of
the air cylinder piston rod (D). Rod (D)
should be fully retracted and just begin to
extend when the adjusting rod (C) is prop-
erly set.
4.
Lock jam nut (B).
6.
If equipped, place the Start--Run Valve
Switch to the “AIR” position. The unit
should speed up and then unload (and
drop back to IDLE). With the unit un-
loaded, turn the adjusting screw on the
pressure regulator clockwise until the dis-
charge
pressure
gauge
indicates
125--130 psi. Tighten the pressure regula-
tor jam nut. Replace cover.
7.
Open the service valve and adjust the dis-
charge pressure to 100 psi (700 kPa).
Now turn adjusting rod (C) until the proper
engine FULL speed setting (*) is reached.
8.
If necessary, loosen jam nut (J) on FULL
speed screw (K) and turn screw until it hits
a stop. Recheck the FULL speed setting
and reset if required. Tighten jam nuts (J)
and (H).
9.
Close the service valve and recheck IDLE
speed (*). If necessary, adjust speed us-
ing screw (L). Tighten jam nut (H).
10.
To obtain maximum cfm at any pressure
between 80 psi (550 kPa) and maximum
pressure rating (*), make adjustment at
the pressure regulator to obtain desired
discharge pressure at FULL engine
speed. Lock adjusting screw and replace
cover.
* See General Data Specifications.
After Starting Unit
5.
Allow unit to warm up at an engine speed
greater than IDLE speed (*) for at least five
minutes. Do this by loosening jam nut (H) on
the IDLE screw (L). Turn the IDLE screw until
the speed is properly set (*).
Содержание P130WJDU
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