Case CX490D, Operator'S Manual

Page: 254 / 370

6 - MAINTENANCE
Hydraulic oil return filter
WARNING
Burn hazard!
Before performing any service on the hydraulic system, you must allow it to cool. Hydraulic fluid
temperature should not exceed 40 °C (104 °F).
Failure to comply could result in death or serious injury.
W0241A
WARNING
Pressurized system!
Never attempt to drain fluids or remove filters when the engine is running. Turn off the engine and
relieve all pressure from pressurized systems before servicing the machine.
Failure to comply could result in death or serious injury.
W0905A
Replace the hydraulic oil return filter every 2000 h (After 250 h of operation in run-in period).
NOTICE: When the machine is a new vehicle, or when the main components of the hydraulic system are already
overhauled or replaced, replace the oil return filter after 250 h of operation. After that, replace the filter at specified
intervals.
NOTICE: If any attachment other than a bucket is used, reduce the interval of the hydraulic oil return filter replacement.
Refer to Chapter 9.
1. Release all the pressure in the hydraulic tank. Refer to
page 6-10 .
2. Clean the top of the hydraulic tank, and clean the cover
of the return filter.
3. Remove the cover (1) and the O-ring (2) .
4. Take out the spring (3) , the valve (4) , and the filter (5) .
5. Attach a new filter (5) .
Clean and attach the spring (3) and the valve (4) .
6. Replace the O-ring (2) .
7. Attach the cover (1) .
8. Check the hydraulic fluid level, and supply it if neces-
sary.
SMIL15CEXY544BB
1
6-60