HyPrecision 50S/60S/75S Operator Manual 808690 81
5 – Preventive maintenance
Preventive maintenance
Measure the hydraulic fluid temperature
Required parts, tools, and materials
Infrared thermometer
Other types of external-reading thermometers, such as the style that adheres to the outside of machinery, can
be used.
Do this task when the pump is running.
1. Remove a side panel from the pump so the hydraulic fluid tank is exposed.
2. Point an infrared thermometer at a large, flat surface on the tank.
The optimum operating temperature for hydraulic fluid in this system is 40.6°C (105°F) to 46.1°C (115°F). If the
temperature is outside of this range, adjust the hydraulic fluid temperature. Refer to page 82 for instructions.
CAUTION
Keep the hydraulic fluid temperature in the hydraulic fluid tank between 37.8°C (100°F)
and 51.7°C (125°F). Hydraulic fluid that is too hot can deteriorate and cause the pump to fail.
Hydraulic fluid that is too cool causes the pump to operate sluggishly.
Calibrate or check your thermometer for accuracy before use.
Service Interval
Measure the hydraulic fluid temperature After every 40 hours of operation
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