11
OPERATING INSTRUCTIONS
Oil Temperature and Duty Cycle Information
Heat is the enemy of every hydraulic system. Every
hydraulic system is susceptible to overheating, even
when operating in subzero temperatures.
While every precaution has been taken to ensure a
reliable system, the operator has a responsibility to
operate the system within the design limits.
IMPORTANT:
The maximum allowable oil
temperature is 180°F (82°C).
Above this limit, the oil viscosity can be reduced to the
point where it will not lubricate the pump sufficiently,
leading to system failure.
The oil temperature is a function of the amount of time
the system is working
, versus the “rest” time (running
but not working). The ratio of work time compared to
total run time is called the duty cycle.
Example:
A machine with a duty cycle of 50% is
meant to work 5 minutes out of every 10 minutes.
The following duty cycles only apply to systems
operating in ambient air temperatures from 0°F to
40°F (-18°C to 4°C).
HP35
– 75% duty cycle maximum
At ambient air temperatures above 40°F the duty
cycle is reduced.
A thermometer is located on the front side of the tank
to make monitoring oil temperature more convenient.
Things to DO while operating:
•
Monitor the system for leaks.
•
Monitor the cooler harness LED (if equipped) to
ensure that the fan is operating.
•
Monitor the system temperature if the cooler LED
light stays lit continuously.
•
Make sure the cooler is free of dirt and debris for
maximum cooling capacity.
Things to AVOID while operating:
•
Prolonged stalling of the attachment.
•
Operating for extended periods of time at
maximum power.
•
Operating with the cooler fan harness
disconnected.
•
Operating the power unit with a low oil level.
Содержание HP35
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