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Hydraulic Oil
Level Check
Interval: Daily
Maintain the oil level in the main hydraulic oil reservoir at a point approximately 2 - 3 inches be-
low the top of the reservoir. Lift up the cover over the hydraulic oil reservoir to gain access to the
breather cap. Clean area around the breather cap, remove the cap and check the level. If oil is low,
add ISO Grade 68 hydraulic oil as needed.
Change Hydraulic Oil
Interval: Every 250 Hours
The most important element in maintaining hydraulic oil is to keep it clean, filtered and do not allow
it to over heat. Clean filtered oil is tan colored, and if properly maintained is usable for a long period
of time. Because it is possible to encounter contamination and possible high temperature applica-
tions, it is recommended that the oil be changed every 250 hours of operation. Any time the oil is
changed, the hydraulic oil filter should also be changed. See “Hydraulic Oil Filter Change” section.
If the oil color turns very dark brown, it is burned from overheating. If it is milky colored it has be-
come contaminated. If either of these conditions are observed, the oil and filter must be changed
regardless of the time interval.
Change oil as follows:
WARNING
Allow hydraulic oil and reservoirs to cool before proceeding. Hot hydraulic oil
can cause severe burns.
1. Place a suitable container (capable of holding 20 gallons) under the plug at the right end of the
lower reservoir.
2. Remove the drain plug from the underside of the lower reservoir to drain the lower reservoir. Al-
low both reservoirs to drain completely.
Drain Plug
Auxiliary Hydraulic
Reservoirs
