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Operating Instruction
Inspection /Maintenance
7.5 Oil Change Intervals
The oil must be changed after the �� 50
working hours, thereafter at intervals of 500
hours or at the latest every 2 years.
7.6 Checking the oil level
Sink the machine into its lowest position.
Read the oil level in the oil observation
bung.
The level should be in the upper third of
the bung.
Top-up when necessary.
Breather bung
Foot pedal
Oil observation bung
Lowering pedal
Fig. 10:
7.7 Oil Change
Sink the machine into its lowest position.
Place drip tray under pump.
Remove the hydraulic hose from the pump
and place in the drip tray.
Pump the foot pedal until no more oil is
discharged from the pump.
Reconnect hose.
Remove breather bung.
Fill oil until level is in the upper third of the
observation bung.
Tank volumes:
•
tank 250 mm long = 1,0 l
•
tank 300 mm long = 1,3 l
•
tank 450 mm long = 1,9 l
•
vertical Tank = 1,2 l
replace the breather bung.
7.8 Bleeding the hydraulics
Sink the machine into its lowest position.
Place drip tray under pump.
Loosen the bleed screws on the cylinders
When there are no bleed screws the cyl
inders are so constructed as to bleed
themselves
Pump until oil is discharged from the bleed
screws without any air bubbles
Tighten bleed screws
Check oil level and top-up if necessary
Bleed pump if necessary
see chapter 8.3
7.9 Control of the hydraulic hoses
A yearly check on the hydraulic hoses
for a safe working condition is stipu-
lated. The check must be carried out
by a ���� tradesman.
Control the following:
•
Can the following damage be observed on
the outer mantel of the hose rips, kinks,
cuts, unbending, abrasions or splitting?
•
Are there any deformities in the hose
when under or not under pressure?
•
Are there any leaks between the hoses
and the ���� Is the hose coming out of
the ����
•
When there is any damage the hose
should be changed.
•
Depending on the requirements the hos-
es should be changed at the latest after
six years.
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