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BLADE AS-SU 4Z8874 - Caterpillar

4Z8874 BLADE AS-SU Caterpillar parts BLADE
Alternative (cross code) number:
Caterpillar 4Z8874 BLADE AS-SU
Weight: 0.30 pounds 0 kg.

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Removal Procedure
Start By:
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Note: Before you begin the following procedure swing the upper structure in order to gain access to the cover that is located under the cab.
Illustration 1 g00704086
Loosen bolts (3).
Remove bolts (1) in order to remove cover (2).
Illustration 2 g00704095
Disconnect hose assemblies (4) from the pilot valve.
Illustration 3 g00704100
Disconnect hose assemblies (5) from the pilot valve.
Illustration 4 g00704108
Disconnect harness assembly (6). Remove left travel pressure switch (7).
Illustration 5 g00704110
Disconnect harness assembly (8). Remove the harness assembly from the clip. Remove right travel pressure switch (9).
Illustration 6 g00704117Note: Mark the location of fitting (11) for the filter for installation purposes.
Remove fittings (10) and (11) from the pilot valve.
Illustration 7 g01208315
Remove rubber floor mat (12) from the travel pedals.
Illustration 8 g00704120
Remove rubber pedal (13) and (14).
Illustration 9 g00704123
Remove bolts (17) and (18) in order to remove left travel pedal (15).
Illustration 10 g00704128
Remove bellows (19) from the pilot valve.
Illustration 11 g00704131
Remove bolts (20).
Remove pilot valves (21). Installation Procedure
Install pilot valves (21) in the reverse order of removal.

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