
125
Maintenance Section
Hydraulic System Oil Filter - Replace
Note: The oil must be free of air bubbles. If air
bubbles are present in the hydraulic oil, air is
entering the hydraulic system. Inspect the hydraulic
suction line and the hose clamps.
15. If necessary, tighten any loose clamps or any
loose connections. Replace any damaged hoses.
i01556975
Hydraulic System Oil Filter -
Replace
SMCS Code: 5068-510
NOTICE
Care must be taken to ensure that fluids are contained
during performance of inspection, maintenance, test-
ing, adjusting and repair of the product. Be prepared to
collect the fluid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containing fluids.
Refer to Special Publication, NENG2500, “Caterpillar
Tools and Shop Products Guide” for tools and supplies
suitable to collect and contain fluids on Caterpillar
products.
Dispose of all fluids according to local regulations and
mandates.
g00813398
Illustration 205
The hydraulic oil filters are located in the hydraulic
oil tank. The hydraulic oil tank is located behind the
platform on the right side of the machine.
1. Remove the three bolts (2) and swing the
platform (1) away from the machine.
2. Remove the four bolts (3) from each of the
covers (4). Remove both of the covers.
3. Remove the filter elements. Discard the old
elements.
4. Clean the covers. Inspect the condition of the
seals. Replace the seals, if necessary.
5. Install new filter elements and install the covers.
Tighten the bolts to 58 ± 4 N·m (42.8 ± 2.9 lb ft).
6. Check the level of the hydraulic oil tank. Add oil,
if necessary.
7. Close the platform and install the three bolts.
i01561998
Hydraulic System Oil Level -
Check
SMCS Code: 5056-535-FLV
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Illustration 206
The hydraulic tank is located on the right side of
the machine.
Maintain the oil level above the “ADD COLD” mark
on sight gauge (2). If necessary, remove filler cap
(1) slowly and add oil.