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993K Wheel Loader Engine Supplement Caterpillar


Engine - Remove

Usage:

993K Z9K

Removal Procedure

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Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7575     Link Bracket     2    
B     1U-9200     Lever Puller Hoist     1    
C     189-0411     Shackle As     3    
D     309-2793     Load leveler     1    

Start By:

  1. Release the hydraulic system pressure. Refer to Disassembly and Assembly, " Hydraulic System Pressure - Release".
  2. Remove the refrigerant condenser. Refer to Disassembly and Assembly, "Refrigerant Condenser - Remove and Install".
  3. Remove the fuel cooler. Refer to Disassembly and Assembly, "Fuel Cooler - Remove and Install".
  4. Remove the steering oil cooler. Refer to Disassembly and Assembly, "Steering Oil Cooler - Remove and Install".
  5. Remove the hydraulic tank. Refer to Disassembly and Assembly, "Hydraulic Tank (Implement, Hydraulic Fan) - Removel".

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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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.

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    Illustration 1g01446654

  1. Remove four tubes (1) from the aftercoolers.
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    Illustration 2g01446659

  1. Remove shrouds (2) .
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    Illustration 3g01446295

  1. Disconnect hose assembly (3) that is located on the left rear side of the engine compartment.
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    Illustration 4g01446297

  1. Disconnect tube assemblies (5). Remove panel (4) .
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    Illustration 5g01446300

  1. Disconnect hose assembly (6) .
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    Illustration 6g01446301

  1. Attach Tooling (A) and a suitable lifting device to panels (8). The weight of panels (8) is approximately 77 kg (170 lb). Remove bolts (7). Remove panels (8) .
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    Illustration 7g01446302

  1. Loosen clamps (10). Disconnect hoses (9) .
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    Illustration 8g01446304

  1. Close the shut off valves for heater hoses (11) and (12). Disconnect hose assemblies (13) and (14) .
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    Illustration 9g01446305

  1. Disconnect hose assembly (15) .
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    Illustration 10g01446306

  1. Disconnect hose assemblies (16) from the bottom of the engine.
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    Illustration 11g01446307

  1. Remove clip (17) from the bottom of the engine.
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    Illustration 12g01446313

  1. Remove bracket (18) from the bottom of the engine.
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    Illustration 13g01446319

  1. Remove clip (19) from the bottom of the engine.
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    Illustration 14g01446320

  1. Disconnect hose assembly (20) .
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    Illustration 15g01446321

  1. Remove clip (22). Disconnect hose assembly (21) .
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    Illustration 16g01446323

  1. Close the valve. Disconnect hose assembly (23). Remove clip (24) .
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    Illustration 17g01446326

  1. Disconnect clip (25) .
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    Illustration 18g01446341

  1. Remove clip (26) from the flywheel housing.
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    Illustration 19g01446342

  1. Disconnect hose assembly (27) .
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    Illustration 20g01446344

  1. Disconnect hose assembly (28) .
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    Illustration 21g01446345

  1. Disconnect cable assemblies (29). Remove clamps (30). Remove ground strap (31) .
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    Illustration 22g01446346

  1. Remove hose (32) .
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    Illustration 23g01446348

  1. Remove pipe (33) .
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    Illustration 24g01446350
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    Illustration 25g01446351
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    Illustration 26g01446352

  1. Attach Tooling (B) and Tooling (C) in order to support the pump drive when the engine is removed. Attach Tooling (B), Tooling (D) and a suitable lifting device to engine (34). The weight of engine (34) is approximately 3538 kg (7800 lb).
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    Illustration 27g01446353

  1. Disconnect hose assemblies (35) .
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    Illustration 28g01446356

  1. Disconnect harness assembly (36) .
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    Illustration 29g01446357
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    Illustration 30g01446358

  1. Remove bolts (37). Leave two bolts (37). Remove hose assemblies (38) .

  1. Remove bolts (39). Remove remaining two bolts (37) .
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    Illustration 31g01446359

  1. Remove engine (34). Ensure that the bell housing clears pilot (40) .

Installation Procedure

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Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7575     Link Bracket     2    
B     1U-9200     Lever Puller Hoist     1    
C     189-0411     Shackle As     3    
D     309-2793     Load leveler     1    

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.

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    Illustration 32g01446351
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    Illustration 33g01446352
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    Illustration 34g01446350

  1. Attach Tooling (B) and Tooling (C) in order to support the pump drive when the engine is removed. Attach Tooling (B), Tooling (D) and a suitable lifting device to engine (34). The weight of engine (34) is approximately 3538 kg (7800 lb).
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    Illustration 35g01446358

  1. Tighten bolts (39) to a torque of 800 ± 100 N·m (590 ± 74 lb ft).
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    Illustration 36g01446357

  1. Install hose assembly (38). Install bolts (37) .
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    Illustration 37g01446356

  1. Connect harness assembly (36) .
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    Illustration 38g01446353

  1. Connect hose assemblies (35) .
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    Illustration 39g01446348

  1. Install pipe (33) .
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    Illustration 40g01446346

  1. Install hose (32) .
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    Illustration 41g01446345

  1. Connect cable assemblies (29). Install ground strap (31). Install clamps (30) .
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    Illustration 42g01446344

  1. Connect hose assembly (28) .
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    Illustration 43g01446342

  1. Connect hose assembly (27) .
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    Illustration 44g01446341

  1. Install clip (26) .
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    Illustration 45g01446326

  1. Connect clip (25) .
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    Illustration 46g01446323

  1. Install clip (24). Connect hose assembly (23). Close the valve.
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    Illustration 47g01446321

  1. Connect hose assembly (21). Install clip (22).
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    Illustration 48g01446320

  1. Connect hose assembly (20) .
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    Illustration 49g01446319

  1. Install clip (19) .
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    Illustration 50g01446313

  1. Install bracket (18) .
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    Illustration 51g01446307

  1. Install clip (17) .
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    Illustration 52g01446306

  1. Connect hose assemblies (16) .
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    Illustration 53g01446305

  1. Connect hose assembly (15) .
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    Illustration 54g01446304

  1. Connect hose assemblies (13) and (14). Open the shut off valves for heater hoses (11) and (12).
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    Illustration 55g01446302

  1. Connect hoses (9). Tighten clamps (10).
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    Illustration 56g01446301

  1. Attach Tooling (A) and a suitable lifting device to panels (8). The weight of panels (8) is approximately 77 kg (170 lb). Install panels (8). Install bolts (7) .
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    Illustration 57g01446300

  1. Connect hose assembly (6) .
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    Illustration 58g01446297

  1. Install panel (4). Connect tube assemblies (5).
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    Illustration 59g01446295

  1. Connect hose assembly (3) that is located on the left rear side of the engine compartment.
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    Illustration 60g01446659

  1. Install shrouds (2) .
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    Illustration 61g01446654

  1. Install four tubes (1) to the aftercoolers.

End By:

  1. Install the hydraulic tank. Refer to Disassembly and Assembly, "Hydraulic Tank (Implement, Hydraulic Fan) - Install".
  2. Install the steering oil cooler. Refer to Disassembly and Assembly, "Steering Oil Cooler - Remove and Install".
  3. Install the fuel cooler. Refer to Disassembly and Assembly, "Fuel Cooler - Remove and Install".
  4. Install the refrigerant condenser. Refer to Disassembly and Assembly, "Refrigerant Condenser - Remove and Install".

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