336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Engine Rear Mount - Remove and Install Caterpillar


Engine Rear Mount - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
Loctite 242 

Start By:

  1. Remove the exhaust elbow.


    Illustration 1g02177953

  1. Remove two bolts (5).

  2. Remove bolts (1) and plate assembly (2).

  3. Remove bolts (4) and plate assembly (3).


    Illustration 2g02147375

  4. Remove cover assembly (6).


    Illustration 3g02147395

  5. Disconnect clamp (7).


    Illustration 4g02206375


    Illustration 5g02206377
    View with counterweight off.

  6. Disconnect bracket assembly (10).

  7. Attach a suitable lifting device to engine (8) in order to support the front of the engine. The approximate weight of engine (8) is approximately 862 kg (1900 lb). Apply a slight lifting tension to engine (8).

  8. Remove bolt (12) and washer (13). Remove bolts (9), bracket assembly (11), and engine rear mount (14). Repeat for the opposite side.

Installation Procedure

  1. Install engine rear mount (14) in the reverse order of removal.

    1. Tighten bolts (12) to a torque of 900 ± 100 N·m (664 ± 74 lb ft).

    2. Apply Tooling (A) to the threads of bolts (1), (4), and (5).

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