78 HyPrecision 50S/60S/75S Operator Manual 808690
5 – Preventive maintenance
Preventive maintenance
Check the hydraulic fluid level
Do this task when the pump is running.
Make sure that the hydraulic fluid level is at the top mark on the sight gauge. Add hydraulic fluid, if necessary.
Add hydraulic fluid
The capacity of the hydraulic fluid tank is 151 L (40 gallons). For air-cooled systems, increase the hydraulic fluid
available by at least 19 liters (5 gallons) to fill the hoses and the air cooler.
Required parts, tools, and materials
Antiwear (AW) mineral oil or synthetic hydraulic fluid, ISO viscosity grade (VG) 32 or 46
Recommended materials
Clean funnel
Service Interval
Check the hydraulic fluid level Before every work shift
DANGER
People who maintain and repair this equipment can be injured or killed if hazardous energy is not
properly controlled. Injuries can include burns, cuts, fractures, or electrocution.
Turn off electrical power and relieve all water and hydraulic pressure from the pump before starting
maintenance or repairs.
Disconnect and lock out or tag out the electrical main before opening the electrical enclosure or
doing maintenance or repair procedures. Refer to
page 97 for additional information.
DANGER
People who work on deenergized machinery can be seriously injured or killed if someone removes
lock-out or tag-out devices and reenergizes machinery without their knowledge. All workers must
respect lock-out and tag-out devices and that only the person(s) who applied these devices remove
them.
1 Filler-breather cap
2 Sight gauge
3 Drain valve
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