325F Excavator Engine Supplement Engine - Remove and Install Caterpillar


Engine - Remove and Install
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1.1. Removal Procedure
2.2. Installation Procedure

Removal Procedure

Start By:

  1. Remove the CEM package.

  2. Remove the counterweight.

  3. Remove the hoods.

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
A  6V-3145  Load Leveler Group  1 
477-3146  Lifting Eye Assembly 
386-6030  Lever Puller Hoist Gp 

------ WARNING! ------

Accidental machine starting can cause injury or death to personnel working on the machine.

To avoid accidental machine starting, turn the battery disconnect switch to the OFF position and remove the key. If the machine is not equipped with a battery disconnect switch, disconnect the battery cables from the battery and tape the battery clamps.

Place a do not operate tag at the battery disconnect switch location to inform personnel that the machine is being worked on.


------ WARNING! ------

At operating temperature, the hydraulic oil is hot and under pressure. Hot oils can cause burns.

To prevent possible personal injury, release the pressure in the work tool hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed.

Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch.



NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.

Dispose of all fluids according to local regulations and mandates.


  1. Turn the battery disconnect switch to the OFF position. Refer to Operation and Maintenance Manual, "Battery Disconnect Switch".


    Illustration 1g06023497

  2. Remove cable straps (2). Remove fan shroud (1).


    Illustration 2g06038052

  3. Disconnect harness assembly (3) .


    Illustration 3g06038186

  4. Loosen bolts (4) from fan. Remove belt (5).


    Illustration 4g06038355

  5. Remove bolts (4) Remove fan assembly (6) and pulley (7).


    Illustration 5g06038380

  6. Disconnect hoses (8), (9), (10) and (11). Remove p-clip (12).


    Illustration 6g06039504

  7. Disconnect harness assemblies (13), (14) and (19). Remove cable ties (15). Remove bolts (16) and (21) and clips. Disconnect hose assemblies (17), (18) and (22). Remove bracket (20) and ground strap (23).


    Illustration 7g06039622

  8. Disconnect hose assemblies (24).


    Illustration 8g06039643

  9. Loosen hose clamp and disconnect hose (25).


    Illustration 9g06039697

  10. Loosen hose clamp and disconnect hose (26).


    Illustration 10g06040058

  11. Disconnect cables and ground strap (27) from starter (28). Remove bolt (29) and clip.


    Illustration 11g06040131

  12. Disconnect harness (30). Remove cable straps (31).


    Illustration 12g06040566

  13. Remove bolt (32) and clip. Loosen clamp and remove tube (33). Disconnect hose assemblies (34).


    Illustration 13g06040705

  14. Remove panel (35) and remove floor plate (36).


    Illustration 14g06041183

  15. Remove guard (37) . Remove bolt (38) and clip.


    Illustration 15g06041816

  16. Attach Tooling (A) to engine (39). The weight of the engine is approximately 635 kg (1400 lb). Use tooling (B) to attach Tooling (C) to support main hydraulic pump when engine (39) is removed.


    Illustration 16g06042048

  17. Remove all bolts (41) from main hydraulic pump (40). Remove all engine mount bolts (42) and remove engine (39).

Installation Procedure

  1. Install engine (39) in the reverse order of removal.

Information System:

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