5 - 5
Changing the Hydraulic oil
!!
WARNING
DO NOT remove the hydraulic tank filler cap or cover
plate when the engine is running. The hydraulic system
is under pressure. You or others could be injured. First
stop the engine and then release the pressure.
8-3-4-4/1
!!
WARNING
Hydraulic Pressure
Oil is toxic. If you swallow any oil, do not induce
vomiting, seek medical advice. Used engine oil contains
harmful contaminants which can cause skin cancer. Do
not handle used engine oil more than necessary. Always
use barrier cream or wear gloves to prevent skin
contact. Wash skin contaminated with oil thoroughly in
warm soapy water. Do not use petrol, diesel fuel or
paraffin to clean your skin.
INT-3-2-3
1 Prepare the Machine
Position the machine on level ground as at A. Stop the
engine. Remove the starter key.
2 Locate the Hydraulic oil tank or Filler Plate. See
Component Location Diagrams at the end of the
section.
3 Release Tank Pressure
See Releasing Tank Pressure.
a Remove the filler port cover B and 'O'-ring C.
b Use a pump and discharge the hydraulic oil into an
empty waste container.
c Remove the drain plug D on the bottom of the Tank
and drain the remaining oil from the tank (have a
drain pan ready).
4 Replace the Suction Strainer E
See Changing the Suction Strainer.
5 Replace the Return Filter F
See Changing the Return Filter.
6 Seal the system
a Refit Drain plug D.
b Refill the Tank
Refill the Tank with Hydraulic oil (See Lubricants
and Capacities for the type of fluid) to the specified
level see Checking the Fluid Level.
c Install the 'O'-ring C and filler port cover B.
Note: If the 'O'-Ring C is damaged, replace it with a new
one.
7 Bleed the Hydraulic Components
See Air Bleeding Procedures
8 Check for leaks
a Start the engine and run it for around 5 minutes
without load.
b Slowly operate the Travel, slew and cylinders
several times.
9 Check the fluid level
See Checking the Fluid Level.
Section 3 Routine Maintenance
9803/6410
Section 3
5 - 5
Issue 1
Hydraulics (continued)
A
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