BEARING-BALL 4646322 - Caterpillar

Introduction
This Special Instruction outlines the basic steps and procedures that are needed in order to fold the left side of the 289-8448 Foldable Blade . This Special Instruction also covers the maintenance of the foldable blade. The blade is used on D6K XL Track-Type Tractors.
Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Caterpillar dealer for replacement manuals. Proper care is your responsibility.
Table 1
289-8448 Foldable Blade    
Weight of the Blade     1272 kg (2800 lb)    
Width of the blade (end bits)    
3078 mm (121.2 inch)    
Blade height    
1147 mm (45.2 inch)    
Width of the tractor (transportation)    
2500 mm (98.43 inch) with foldable blade    Procedure to Unfold the Blade
Illustration 1 g01168144
Remove two pins (1) and extract bar (2) .
Illustration 2 g01170925
Place the end of the bar in the hole at the top left corner of blade (3) and push in order to unfold.
Illustration 3 g01170965
Place the bar at the rear of the blade and attach the bar with two cotters. Place pins (4) in order to secure the blade in the working position. Secure the pins with cotters.Procedure to Fold the Blade
In order to fold the blade, reverse the above procedure and place the blade in position for transporting. The blade will be fully angled to the left.Maintenance Interval Schedule
Table 2
Maintenance Interval for the Foldable Blade    
Description     Interval (Service Hours)    
Pin Lubrication     150    
Illustration 4 g01171376
Note: Use only Cat Multipurpose Grease ( MPGL) to lubricate grease zerks (5). MPGL is used for heavily loaded bearings and heavily loaded joints. Cat MPGL is an extreme pressure grease that maximizes the life of Caterpillar equipment. The multipurpose grease has an operating temperature of −28 to 149°C (−18 to 300°F).