Page 52 - QR CIMAR LASER SCREED

CHANGING HYDRAULIC OIL

Periodically it will be necessary to change the hydraulic oil to prevent deterioration of the systems
components. Also oil ages with use the special chemical additives in the oil, which resist corrosion,
break down and become less effective. Therefore it is important to periodically replace as much of hte
oil as possible with fresh oil. It is impractical to change all the oil in the system due to oil being trapped
in the various components of the system.

To change hydraulic oil:
1) Pressure wash the machine. Pay special attention to cleaning the top of the hydraulic tank in the

area of the hydraulic reservoir access covers. The top of the tank should be as clean as possible so
that no dirt can fall into the tank when the oil filter assembly is removed.
2) Drain the oil from the hydraulic tank by opening the return port at the bottom of the tank. Drain the
old oil into a large drain pan of capacity equal to or greater than the oil capacity of the reservoir (3
gallons/11.4l).
3) Once all the oil has drained from the tank, it may be best to remove the oil filter assembly for an
inspection and cleaning of the inside of the reservoir.
4) The hydraulic oil filter assembly is removed by removing the hex bolts in the base plate of the oil
filter assembly.
5) The filter element is located under the cover of the oil filter assembly.
6) With the oil filter assembly removed, the interior of the hydraulic reservoir can be inspected and
cleaned. After cleaning, replace the oil filter assembly with the sealing gasket in proper position.
7) Replace the fittings on the return port and refill the hydraulic tank to the correct level with new
hydraulic oil.

CHECKING WHEEL LUG NUT TIGHTNESS
Periodically check the tightness of the wheel lug nuts.

VIBRATOR GEAR BOX Grease bearings daily
CAUTION: DO NOT ATTEMPT TO
LUBRICATE OR PERFORM ANY OTHER
MAINTENANCE ON ANY FUNCTION
WHILE IT IS IN OPERATION.

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