336E Excavator and 336E MHPU Mobile Hydraulic Power Unit Machine Systems Track - Connect - Press Fit Master Pin Caterpillar

Connection Procedure

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Illustration 1	g01206205

1. Use a Tooling (A) to position the track assembly. Raise the track until the pin bores in the track links are in alignment. Install Tooling (B) in position under the track shoe.
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   Illustration 2	g01998554

2. Install seals (4) into the link (5). Apply Tooling (D) to the lip of seals (4).
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   Illustration 3	g02000099

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   Illustration 4	g02024000
   Dimension (X) equals 2.00 mm (0.080 inch).

3. Use Tooling (C) to install master pin (3). The weight of Tooling (C) is approximately 136 kg (300 lb). Master pin (3) must be centered on the track link. Install master pin to a depth of approximately 2.00 mm (0.080 inch).

   Note: Do not allow any grease to be on the end of the pin. Grease on the end of the pin can cause the tooling to slip during the installation.

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   Illustration 5	g01167154

4. Use Tooling (A) to position track shoe (2). The weight of track shoe (2) is approximately 34 kg (75 lb). Install bolts (1). Tighten bolts (1) to the correct torque. Refer to Table 2.
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   Table 2

   Torque for Bolts (1)
   Torque	Torque to Additional
   500 ± 70 N·m (369 ± 52 lb ft)	120 Degrees
   700 ± 70 N·m (516 ± 52 lb ft)(1)

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   (1)	Only apply the higher torque value if you install 143-4891 Track Bolts or 216-4025 Track Bolts.

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   Illustration 6	g01174955

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   Personal injury or death can result from grease and oil coming out of the relief valve. Grease and oil are under high pressure coming out of the relief valve and can penetrate the body. Do not watch the relief valve to see if grease is escaping. Watch the track or track adjustment cylinder to see if the track is being loosened. Make sure the vent holes are clean before the tension is released on the track.

5. Remove Tooling (B) from both ends of the track assembly.

6. Adjust the track tension. Refer to Operation and Maintenance Manual, "Track Adjustment - Adjust".