TIP-LONG 1U3252 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     6V-6080     Torque Multiplier     1    
B     156-7168     Main Bearing Tool Group     1    
C     153-8488     Stud Tensioner Tool Gp (Crankshaft Main Bearing)     2    
D     156-7166     Electric Hydraulic Pump Gp (1)     1    
156-7167 Manual Hydraulic Pump (1)     1    
178-9312 Hose As     2    
178-9313 Coupler Block Gp     1    
E     160-4901     Tray Support     2    
F     160-0475     Tray     1    
G     8T-2681     Main Bearing Driver     1    
H     185-0683     Pressure Gauge As (Comparison)     1    
( 1 ) Either pump may be used for this procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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: With this procedure, the main bearing caps can be lowered approximately 230 mm (9.0 inch). If the main bearing caps must be lowered further, additional equipment for jacking up of the main bearing cap will be required. For more information on the use of the Tooling, see Tool Operating Manual, NEHS0762.
Illustration 1 g01214891
Tooling (B) (1) Lifting bracket (2) Lift assembly (3) Air cylinder (4) Base (5) Air control
Illustration 2 g01214894
Tooling (C) (6) Stud tensioner support (7) Stud tensioner
Drain the engine oil from the engine oil pan into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Engine Oil and Filter - Change".
Illustration 3 g01214902
Illustration 4 g01214970
Typical example
Remove side covers (8) from both sides of the crankshaft main bearing that will be serviced. Remove side covers (8) from both sides of the engine. A total of four side covers must be removed for each crankshaft main bearing.
Removal of the bolts that support the main bearing cap will allow the main bearing cap to fall when the nuts that support the main bearing cap are removed from the studs. This will cause damage to the engine. DO NOT remove the bolts that support the main bearing cap until the main bearing cap is supported by other means.
Use Tooling (A) to loosen bolts (9) that support the main bearing cap. Loosen bolts (9) on both sides of the engine. DO NOT remove bolts (9) at this time.
Illustration 5 g01214906
Remove thermocouple (10) from the main bearing cap that will be serviced. If necessary, remove the adjacent thermocouples in order to avoid damage to the harness assemblies.
Illustration 6 g01214923
Rear view of the lifting