CASE CONSTRUCTION CX75C SR, Operator'S Manual

Page: 207 / 256

6 - MAINTENANCE
Hydraulic return filter
NOTICE: when using the hydraulic breaker, reduce the interval of the return filter replacement. Refer to page 6-12 .
NOTICE: when using biodegradable oil, reduce the interval of the return filter replacement to 1000 hours.
WARNING
Burn hazard!
Before performing any service on the hy-
draulic 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 fil-
ters 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
To replace the hydraulic oil return filter proceed as
follows:
1. Release all pressure in the hydraulic reservoir.
Refer to page
6-11
2. Clean the top of the hydraulic reservoir and
clean the return filter cover.
3. Remove the cover (1) , O-ring (2) and compres-
sion spring (3) .
4. Remove the filter (4) .
5. Install a new filter (4) .
6. Check the O-ring (2) and replace it if it is worn
or damaged.
7. Install the compression spring (3) and cover
(1) .
8. Install the upper plate on the hydraulic tank.
9. Check the hydraulic oil level and top up as nec-
essary. Refer to page
6-17 .
NOTICE: if metal particles are found in the old filter, consult
your CASE CONSTRUCTION Dealer.
SMIL13CEX2797AB
1
SMIL13CEX2798AB
2
6-61