CAT MT4400D AC Off-Highway Truck Machine Systems Caterpillar


Front Wheel, Bearing and Duo-Cone Seal - Remove

Usage:

MT4400D AC MH4

Removal Procedure

Start By:

  1. Remove the service brakes.

  1. Drain the oil from the wheel assembly into a suitable container for storage or disposal.



    Illustration 1g03658762

  1. Remove bolts (1). Remove cover (2) .



    Illustration 2g03658757

  1. Remove O-ring seal (3) from cover (2) .



    Illustration 3g03658996

  1. Disconnect bracket (4) and position out of the way.



    Illustration 4g03659003

  1. Disconnect hose assembly (5) .



    Illustration 5g03658889

  1. Attach a suitable lifting device to support wheel assembly (6). The weight of wheel assembly (6) is approximately 1719 kg (3790 lb).



    Illustration 6g03658894



    Illustration 7g03658906

  1. Remove wire lock (7). Remove bolts (8). Remove retainer (9) and shims (10) .

  1. Remove seal plate (11) .



    Illustration 8g03658965

  1. Remove O-ring seal (12) from seal plate (11) .



    Illustration 9g03658913

  1. Remove bearing cone (13).



    Illustration 10g03658889

  1. Remove wheel assembly (6) .



    Illustration 11g03658976

  1. Remove Duo-Cone seal (14) .



    Illustration 12g03658993

  1. Remove bearing cup (15) .



    Illustration 13g03659370

  1. Remove bolts (16). Use a suitable lifting device to remove brake disc (17). The weight of brake disc (17) is approximately 136 kg (300 lb).



    Illustration 14g03659575

  1. Remove bearing cup (18) .



    Illustration 15g03659021

  1. Remove bearing cone (19) .

  1. Remove bolts (20), seal carrier (21), and spacer (22) .



    Illustration 16g03659379



    Illustration 17g03659034

  1. Remove Duo-Cone seal (23) and O-ring seal (24) from seal carrier (21) .

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