When cool/cold hydraulics are strong. After working and heating up the hydraulics get weaker. Travel is slower and will not pull out of a steep area. Swivel is slower, hydraulic pump 'noise' sounds 'noisier'. Digging is less 'strong'.
As a -purchased- Cat I was wondering if 'old' hydraulic OIL might be the cause. Lower VISCOSITY under heat ?
Or . . . is the PUMP not putting out the VOLUME at higher temperatures.
45 gallons of hydraulic oil is -expensive-. . . . ....
Cat 312 every function SLOWS when hot
Cat 312 every function SLOWS when hot
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