CAP GP-HUB 4712842 - Caterpillar

Introduction
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.This document provides two procedures:
Track seal leak check – pulls a vacuum (optional)
Track joint lubrication – adds oil to prolong track joint life
Illustration 1 g06243020
8T-3115 Lubricator Gp - Portable Track
The 8T-3115 Lubricator Gp - Portable Track provides the following benefits:
Provides easy method of lubricating track link joints in the field
Can be used to evacuate track link joints and then to fill the track link joints to the correct level
Easier to transport than the former 5P-2420 Lubricator Gp - Track, and does not need compressed air to operateThis track joint inspection can be performed while the track is installed on the machine.The tractor should be operated for a few minutes prior to inspection. Operating the tractor will allow for articulation of the components and breaking loose of any debris around the seals that could inhibit the vacuum leak check.Note: Refer to Special Instruction, SMHS8557 for the operating instructions for 8T-3115 Lubricator Gp - Portable Track.Safety Section
Do not attempt to disassemble or assemble this machine until you read and understand the disassembly and assembly instructions. Improper disassembly and assembly procedures could result in injury or death.
Required Tools
Table 1
Required Tools
Item Qty Part Number Description
1 1 8T-3115 Lubricator Gp - portable Track
2 1 226-1905 Pin Punch 3/16 or equivalent
3 1 242-3466 Synthetic Gear Oil (75W140)
4 1 6Y-0473 Plastic Plug
5 1 5P-7419 Plug Installer Inspection and Lubrication Procedure
Drive plastic plug (bullet) (4) into rubber stopper with 4.76 mm (0.187 inch) (3/16) diameter punch (2). To prevent damaging of plastic plug (bullet) (4), a larger diameter punch may be required to break the plug loose initially. Drive Plug (4) approximately 25.4 mm (1 inch) before the plug will fall into the track pin reservoir.
Illustration 2 g06243401
Move 3-way ball valve lever (A) to the left side. moving 3-way ball valve lever (A) to the left side will allow a vacuum to be pulled on the track joint & associated seals.
Illustration 3 g06243648
Insert lubricator tip (B) into rubber stopper (C). Pull 20-25" (67.73-84.66 kPa) vacuum on the pin by using the vacuum pump handle. Pulling may evacuate some of the pin oil. Some oil that is below the lubricator tip may remain in the pin. Occasionally check the level of used oil in the plastic catch bottle on the pump canister so that the oil does not overflow.
Illustration 4 g06243684
Monitor the gauge for 30 seconds for loss of vacuum. A slow leak (1” Hg (3.39 kPa) in 30 seconds may not warrant immediate pin replacement, but should be monitored. However, a rapid drop to 0 psi (0 kPa) should be considered a failed pin and should be replaced as soon as possible. Molybdenum (NLGI #1) grease 452-5996 can be injected into a failed pin to help slow the internal wear until repairs can be made.
After the vacuum check is complete, jog 3-way ball valve lever (A) back and forth to