326F, 329F and 330F Excavators Machine Systems Caterpillar


Cab - Remove and Install

Usage:

330F B32

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
138-7575  Link Bracket 
Loctite 271 

Start By:

  1. Release the hydraulic system pressure.

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

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.


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

Personal injury can result from contact with refrigerant.

Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury.

Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant.

Always use precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area.

Personal injury or death can result from inhaling refrigerant through a lit cigarette.

Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas, can cause bodily harm or death.

Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.

Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system.


  1. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct recovering and charging procedures. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the correct tools.


    Illustration 1g02334717

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


    Illustration 2g02216333

  3. Disconnect hose assemblies (3).


    Illustration 3g02216275

  4. Disconnect hose assemblies (5) and ground strap (6). Reposition hose (4).


    Illustration 4g02217394

  5. Disconnect hoses (7) and hose assemblies (8).


    Illustration 5g02217433

  6. Disconnect hose assemblies (9) and (10).


    Illustration 6g02478148

  7. Open the cab guard and remove the front bumper (11).


    Illustration 7g02478149

  8. Disconnect hose (12) and harness assembly (13).


    Illustration 8g02223693

  9. Disconnect harness assemblies (14) and (15). Disconnect cable assemblies (16) and (17).

  10. Disconnect bracket (18).


    Illustration 9g02224633

  11. Disconnect cable (19).


    Illustration 10g02334520

  12. Disconnect hose (20).


    Illustration 11g02334536

  13. Disconnect bracket (21).

  14. Attach Tooling (A) and a suitable lifting device to cab guard (22). The weight of cab guard (22) is approximately 82 kg (181 lb).

  15. Remove cab guard (22).


    Illustration 12g02334539

  16. Attach Tooling (A) and a suitable lifting device to cab (23). The weight of cab (23) is approximately 890 kg (1962 lb).


    Illustration 13g02334540

  17. Remove bolt (24).


    Illustration 14g02334600

  18. Remove bolt (25).


    Illustration 15g02334601

  19. Remove bolts (26) and (27).


    Illustration 16g02334539


    Illustration 17g02334602

  20. Remove bolts (28) and cab (23).

Installation Procedure

  1. Install cab (23) in the reverse order of removal.

    1. Apply Tooling (B) to the threads of bolts (2).

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