Hydraulic Tank; Change The Hydraulic Tank Filter; Change The Hydraulic Oil - Skyjack SJ85 AJ Service Manual

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Hydraulic Tank

5.7 Hydraulic Tank
Maintaining the hydraulic components and hydraulic
oil at the proper level are essential to the good
performance and service life of the MEWP .

5.7-1 Change the Hydraulic Tank Filter

1. Place a suitable container under the hydraulic
tank filter.
2. Remove the oil filter and catch any escaping oil.
WARNING
Dispose of hydraulic oil in accordance with local
and federal regulations.
3. Clean inside the filter head.
4. Apply a thin layer of clean hydraulic oil to the
new oil filter gasket.
5. Install the filter and tighten it firmly.
6. Clean up any oil that may have spilled during
this procedure.
7. Start the engine from the base control console.
8. Check for leakage.
SJ85 AJ

5.7-2 Change the Hydraulic Oil

1. Turn the engine on and allow the hydraulic oil to
warm up.
2. Shut the engine off.
3. Place a suitable container under the hydraulic
tank drain port.
4. Remove the oil drain plug and allow all of the
hydraulic oil to drain into the container.
WARNING
Dispose of hydraulic oil in accordance with local
and federal regulations.
5. Install the oil drain plug with a new seal ring and
tighten it firmly.
6. Refill the hydraulic tank with new oil as per the
specifications (refer to
Features - Engines &
7. Check for leakage.
8. Clean up any oil that may have spilled during
this procedure.
9. Check the hydraulic oil level on the sight gauge.
The oil level should be at or slightly above the
top mark on the sight gauge.
NOTE
Samples of hydraulic oil should be drawn from
the reservoir and tested annually. These samples
should be taken when the oil is warmed through
normal operation of the system. The sample
should be analyzed by a qualified lubrication
specialist to determine if it is suitable for
continued use. Oil change intervals will depend
on the care used in keeping the oil clean, and
the operating conditions. Dirt and/or moisture
contamination will dictate that the oil should be
changed more often. Under normal use and
operating conditions, the hydraulic oil should be
changed every two years.
Section 5 – Procedures
2.13 Specifications and
Fluids).
229044ADA
193

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