INSULATION-SOUND SUPPRESSION 3920852 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A FT-2674 Vacuum Cap 1 Start By:
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "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.
Illustration 1 g01432111
Remove the cap from the hydraulic tank. Install Tooling (A) onto the hydraulic tank. Attach an air supply hose to Tooling (A). Apply 276 to 414 kPa (40 to 60 psi) of air. This procedure will pull vacuum on the hydraulic system.
Illustration 2 g01437903
Remove cover assembly (1).
Illustration 3 g01437938
Disconnect harness assemblies (2). Disconnect hose assemblies (3). Remove bolts (4) and solenoid valve (5).
Illustration 4 g01438347
Remove bolts (6) and valves (7).
Illustration 5 g01438352
Remove O-ring seals (8), (9), (10), and (11) from valve (7). Repeat for the remaining valve (7). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A FT-2674 Vacuum Cap 1
Illustration 6 g01438352
Install O-ring seals (8), (9), (10), and (11) onto valve (7). Repeat for the remaining valve (7).
Illustration 7 g01438347
Position valves (7) and install bolts (6). Tighten bolts (6) to a torque of 6.9 0.7 N m (61 6 lb in).
Illustration 8 g01437938
Position solenoid valve (5) and install bolts (4). Connect hose assemblies (3). Connect harness assemblies (2).
Illustration 9 g01437903
Install cover assembly (1).
Illustration 10 g01432111
Remove Tooling (A). Install the cap onto the hydraulic tank.