MAST,INNER 1113088 - Caterpillar

Removal Procedure
Start By:
Remove the blade cylinder. Refer to Disassembly and Assembly, "Blade Cylinder - Remove".
Put wood blocks under the arms of the blade in order to support the blade.
Illustration 1 g00555026
Remove the nuts and retaining bolt (1), and remove pin assembly (2). Repeat this procedure for the remaining blade arm.
Illustration 2 g00880642
Start the machine and carefully move the machine away from blade arms (3). The weight of the blade assembly is approximately 172 kg (380 lb).
Remove four lip seals (4), and remove sleeve bearings (5) from the blade arms. Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-0510 Driver Group 1
Thoroughly clean all mating surfaces before assembly.
Lower the temperature of the sleeve bearings. Position the sleeve bearings in the pin bore of the blade arms. Use Tooling (A) to install sleeve bearings (5) until the sleeve bearings are centered in the bores.
Illustration 3 g00880642
Use Tooling (A) to install four lip seals (4) in the arms of the blade. Install the seals with the lip toward the outside of the blade. Install the seals until the seals make contact with the sleeve bearings.
Illustration 4 g00880648
Attach a suitable lifting device to blade (6). Position the blade on the undercarriage frame.
Illustration 5 g00555026
Illustration 6 g00356648
Install two pin assemblies (2) that secure the blade assembly to the frame. Install retaining bolts (1) and the nuts. Tighten the outside nut until the nut is 0.5 mm (0.02 inch) above the end of the retaining bolt. Tighten the inside nut to a torque of 70 15 N m (50 10 lb ft).
Lubricate mounting pins (2) with 5P-0960 Molybdenum Grease. End By:
Install the blade cylinder. Refer to Disassembly and Assembly, "Blade Cylinder - Install".