Pump adjustment – Smart Power Systems HR-30 User Manual
Page 46
Smart Power
®
Systems
A. C. MODULAR GENERATOR SYSTEM
Page 45 of 50
Pump Adjustment
WARNING:
The SPS Electronic Controlled Generators have been pre-set at the factory to
provide correct frequency and voltage, no pump adjustments are required. If it
appears the pump need to be adjusted, contact SPS at (231) 832-5525 before
proceeding. Damage to the generator from improper pump adjustments will void
the system’s warranty.
To prevent permanent, un-repairable damage to the generator, never adjust the
hydraulic pump so the generator’s output frequency exceeds 65 Hz.
Make adjustments to the hydraulic pump flow control with all electrical loads
disconnected from generator.
Never adjust the pump’s pressure control.
Reasons for adjusting the pump:
1.
Generated output frequency is “too low.” Verify output frequency when the vehicle
is in fast idle and oil temperature is below 160
°F. If the frequency drops below
59Hz, the pump output flow may need to be increased.
2.
The hydraulic system is running excessively hot: If the system’s oil temperature is
running above 160
°F with an ambient air temperature of 80°F, the pump output flow
may need to be decreased. Before making any adjustment, verify the system is
getting adequate ventilation, that the fans are both operating, the oil cooler air
passageways are not blocked or plugged and the hot air exiting the cooler is not
being drawn back through the cooler. Operate system after correcting ventilation
problems to validate whether the system still overheats prior to making pump
adjustment.
Note: The generator’s output frequency cannot be decreased by adjusting the pump
flow. If the generator output frequency is too high, contact SPS at (231) 832-5525 for
further instructions.
Pump adjustment procedure:
1.
Enable the generator Pump Set option.
The system controller has been designed to provide a Pump Set option. With this
option applied, the generator will turn at the maximum speed allowed by the
hydraulic pump to allow proper adjustment of the pump’s flow.