LUBRICATION/FILTERS/FLUIDS
170
LEFT PAGE
Bur 6-34090EUR
Change the hydraulic/brake oil every
2000 hours of operation or one time
each year, or when ambient operating
temperatures require, whichever
occurs first. When changing the
hydraulic oil also replace both hydraulic
oil filters and clean the suction screen.
1. Make sure the hydraulic oil is at
operating temperature.
2. Park the machine on a level
surface. Lower the loader bucket to
the ground and apply the parking
brake.
3. Stop the engine. Put a DO NOT
OPERATE tag on the steering
wheel.
4. Make sure the accumulators are
completely discharged. Push down
and release one of the brake
pedals a minimum of 30 times.
5. Clean the area around the filler cap
and access cover. Slowly remove
the filler cap of the reservoir. This
will remove the air pressure from
the reservoir.
6. Remove the plug from the drain
valve and install a hose on the
drain valve.
7. Put the other end of the drain hose
into a container that will hold 32
gallons (121 litres).
8. Open the drain valve.
9. Replace the hydraulic oil filters.
10. Remove the access cover from the
hydraulic reservoir and remove the
suction screen. Turn the suction
screen counterclockwise to
remove.
11. Clean the inside of the hydraulic
reservoir with clean cloths.
12. Clean the suction screen in solvent
and dry the suction screen with
compressed air. Install the suction
screen.
13. Turn the reservoir drain valve to
OFF. Remove the drain hose and
install the plug in the drain valve.
14. Install the access cover with a new
seal and tighten the mounting bolt.
15. See Hydraulic System in this
manual for the correct type and
quantity of hydraulic oil. Put new oil
into the reservoir.
16. Install the reservoir filler cap.
17. Start the engine and run at 1000
rpm. Check for oil leaks around the
filters, access cover and the drain
plug. When the balance pressure
warning buzzer stops making
noise, run the engine at 1500 rpm.
18. Bleed the brake system to remove
old oil from the system. Remove a
minimum of 1 Liter of oil from each
bleed screw to make sure all old oil
is removed from the system (See
Bleeding the brake system in this
manual).
19. Operate the loader controls several
times to remove any air in the lines.
20. Lower the loader bucket to the
ground and stop the engine. Check
the hydraulic oil level.
21. Add oil as required.