Return Filter Replacement; Ultra Clean Filter Replacement - Case CX75SR Operator's Manual

CT02D073

RETURN FILTER REPLACEMENT

1. Release all pressure in the hydraulic reservoir.
See Rel easing Pres sur e in the Hydraulic
System.
2. Clean the top of the hydraulic reservoir and clean
the return filter cover.
3. Remove the cover (1) and O-ring (2).
4. Take out the spring (3), valve (4) and return filter
(5).
5. Install a new filter. Clean the spring (3) and valve
(4) and install them.
6. Check O-ring (2) and replace it if worn or
damaged.
7. Install the cover (1).
8. Check the level of the hydraulic fluid and add
more if necessary. See Filling the reservoir.
CX75SR, CX80
To access the filter, see Accessing the hydraulic
reservoir.
3
CI98M156
CX135SR
To access the filter, remove the screws and the upper
plate.
6-34551NA
CHAPTER 5 - LUBRICATION, FILTERS, AND FLUIDS
Figure 99
1
2
4
5
Figure 100
Issued 8-04 Bur
CT02D073

ULTRA CLEAN FILTER REPLACEMENT

1. Release all pressure in the hydraulic reservoir.
See Rel easing Pre ssur e in th e Hydraulic
System.
2. Clean the top of the filter with solvent.
3. Remove the four screws (1) from the cover and
remove the cover (2). Remove the O-ring (3) and
the spring (4).
4. Carefully lift the old filter element (6) out of the
body (5).
5. Use a clean cloth and clean out the filter body
(5).
6. Carefully install a new filter element (6) in the
body (5).
7. Install the spring (4), new O-ring (3) and cover
(2).
8. Start the engine and run it at low speed.
9. Loosen the vent plug (7) on top of the cover.
When air free hydraulic fluid comes out of the
vent hole, tighten the vent plug (7). Clean all fluid
from the filter body.
10. Check the level of the hydraulic fluid and add
more if necessary. See Filling the reservoir.
7
2
4
5
CS02A544
Figure 101
1
3
6
Figure 102
5-37