SECTION 5 1600C LP USER MANUAL
63
CONTROL SYSTEM ADJUSTMENT
Refer to Figure 5-5. Prior to adjusting the control
system, it is necessary to determine the desired
operating pressure range as well as the maximum
pressure at which the machine is to operate. This
pressure must not exceed the maximum operating
pressure which is stamped on the machine serial
number plate. The following explanation applies to a
typical machine with a desired operating range of
100 to 150 psig (6.9 bar to 10.3 bar). This information
will apply to a machine with any other operating
range except for the stated operating pressure. For
high-pressure machines, adjustment pressures are
shown in parenthesis:
1. Start the machine and let it warm-up and
enter full “RUN” mode.
2. Open service valve slightly until engine tries
to speed up. Slowly close the service valve.
With service valve closed, check and adjust
the pressure at the reducing regulator to a
minimum of 60 psig (4.1 bar) and not to
exceed 75 psig (5.2 bar). With service valve
Figure 5-5: Control System Components
1. Pneumatic Inlet Valve 6. Low Pressure Regulator
2. Manifold Block 7. START/RUN Solenoid
3. Compass Controller 8. Recirculation Solenoid
4. HI/LOW Solenoid 9. Reducing Pressure Solenoid
5. High Pressure Regulator
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