Pilot Valve Adjustment Instructions - Quincy Compressor Industrial Series Instruction Manual

PILOT V PILOT V AL AL VE ADJUSTMENTS VE ADJUSTMENTS
PILOT VAL PILOT V PILOT V AL ALVE ADJUSTMENTS VE ADJUSTMENTS VE ADJUSTMENTS
All adjustments made to the pilot valve must be performed by a qualified technician. The adjustments must
be made while the unit is operating, therefore, extreme caution must be taken while working on the unit.
Observe all necessary precautions. Always use a back-up wrench and make all differential and unload pressure
adjustments in very small increments (1/8 turn).
The pressure switch and / or pilot valve are set at the factory for maximum efficiency. Adjustments to either
component must be performed by a qualified technician. Exceeding the factory recommended maximum pressure
will void the warranty and may cause personal injury.
Setting Unload Pressure
Step 1. Flip the toggle to the
"RUN" position as
shown, or turn the
knurled knob (if so
equipped) counter-
clockwise until it
stops.
Step 2. Loosen
(counterclockwise). *
Stabilize
back-up wrench!
Setting Differential Pressure
Step 5. Loosen locknut (counterclock-
wise). * Stabilize with back-up
wrench!
Industrial / Air Master Series
50161-105, March 2008
WARNING !
*
locknut
with
*
Step 3. Turn clockwise to increase unload pres-
sure, turn counterclockwise to decrease
unload pressure. Hold position with
wrench and proceed to Step 4.
Step 4. Tighten locknut (clockwise) with wrench.
* Stabilize with back-up wrench!
Step 6. Turn clockwise to decrease the
Step 7. Tighten locknut (clockwise)
32 3501 Wismann Lane, Quincy Ill. - 62305-3116
"MANUAL
UNLOAD"
position
(Ref.)
differential pressure and coun-
terclockwise to increase the dif-
ferential pressure. Hold posi-
tion with wrench and proceed
to Step 7.
with wrench. * Stabilize with
back-up wrench!
Quincy Compressor