10
Aerial work platform
ZED 20.3 HV
COD. UM0284_GB | REV. 0.0 | ED: 09/17
GB
Chapter 8
MAINTENANCE
CAUTiOn
The following operations should be carried out with the platform in its rest
position (stabilisers and booms fully retracted).
Change the hydraulic oil every 1000 hours, or at least one a year. At the same time, replace the
hydraulic oil ilters.
To replace it, get a suitable, large-enough receptacle or receptacles (see Section 3.6.1) and drain
the used oil by loosening the drainage cap (Fig. 8.2, 2) found under the tank. Close the drain plug
and reill the tank.
CAUTiOn
Avoid releasing hydraulic oil into the environment when changing it.
Dispose of the oil in accordance with current legislation.
8.6.6
Hydraulic oil ilter
There is a ilter near the tank (Fig. 8.3, 2). Each time the machine is used, check that the ilter clogging
indicator (Fig. 8.3, 1) is green. This check must be carried out in the operational phase. If the indicator
is in the red area, replace the ilter.
Replace the ilter after the irst 100 hours and then every three months or 500 hours. Observe the
checks and recommended intervals between replacements, as clogging of the ilter affects the working
order of the machine and can damage hydraulic components.
CAUTiOn
if parts of the hydraulic circuit have to be replaced due to serious failures, such
as seizing of the pumps, hydraulic motors or cylinders, which results in a large
quantity of impurities entering the hydraulic circuit, the ilter must be replaced
again following the instructions above.
Replace the hydraulic oil ilter as follows:
•
unscrew the ilter (Fig.
8.3,
2) using the special key if necessary;
•
insert the new ilter and tighten it, taking care to lubricate the sealing gasket with grease.
•
top up the hydraulic oil tank (Fig.
8.2
, 3) and check the level on the special indicator (Fig.
8.2
, 1).
1
2
Fig.
8.3
