YATO YT-55560 Manual De Instrucciones página 16

Filling the oil tank and lubrication
It is required to have the following maintenance action realised in a specialised service point.
Dismantle the hydraulic cylinder from the crane, and then place it in such a manner that the piston is in vertical position.
Lower the pump and piston to the extreme lower position. Remove the plug of the oil tank.
Use only SAE 10 hydraulic oil. It is prohibited to use other liquids for this purpose. Fill the tank to the lower edge of the oil inlet.
Purge the hydraulic cylinder in accordance with the point „Purging the hydraulic system".
Replace the oil tank plug and check the operation of thee hydraulic cylinder.
In regular intervals (at least every ten working hours) lubricate the articulated connections and other moving elements of the
device.
Solution of problems
The crane
The crane does
lowers under
not lift a load
a load
X
X
X X
X X
O R I G I N A L
16
The crane does The pump
not lift a load to springs back
the full height during lifting
X X
X X
I N S T R U C T I O N S
GB
The crane Oil is leaking
does not lower from under the
completely plug
X
X
X
There may be insufficient quantity of oil in the
hydraulic cylinder. Fill the oil tank.
Air in the hydraulic system. Purge the hydraulic
system.
There may be excessive quantity of oil in the lift.
Remove the excess of oil
The valves may not close completely. Lift the arm
of the device a couple of times without any load
and then lower it.
Moving elements are not lubricated. Distorted
elements of the transmission system of the arm.
The release valve is not completely closed.
Close the release valve.