A New Clutch Piston Is Now Used on Certain 735C, 740C Ejector, and 745C Articulated Trucks {3030, 3160, 3170} Caterpillar


A New Clutch Piston Is Now Used on Certain 735C, 740C Ejector, and 745C Articulated Trucks {3030, 3160, 3170}

Usage:

735C LFJ


Articulated Truck
735C (S/N: LFJ1-254; TFJ1-254)
740C EJECTOR (S/N: LFN1-276; TFN1-187)
745C (S/N: LFK1-1442; TFK1-1422)

Description Of Change: A new clutch piston is now used on the machines listed above. The new clutch piston increases the stroke and improves clutch pack lubrication. The improved clutch piston will increase the clutch life and decrease required maintenance.

Adaptable To: The following parts are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

Refer to Table 1 for a list of new and former part numbers.

Table 1
Parts Required 
Item  Qty  Part Number  Description  Former Part Number 
510-4903  Clutch Piston  353-3938 
511-0210  Plate  467-0185 
518-3168  Seal Ring  9G-8976 
466-6259  Retaining Ring   
9U-9484  Seal Ring   
353-3954  Plate   
385-3940  Friction Disc   

Rework Procedure



Illustration 1g06114422

  1. Remove transmission (A). Refer to Disassembly and Assembly, UENR4227, "Transmission - Remove and Install" for details.

  2. Disassemble transmission Planetary (B). Refer to Disassembly and Assembly, UENR4227, "Transmission Planetary- Disassemble" for details.

  3. Update clutch piston (1), plate (2), seal ring (3), retaining ring (4), and retaining ring (5) as shown above.

  4. Replace plates (6), friction discs (7) as needed.

  5. Reassemble transmission Planetary (B). Refer to Disassembly and Assembly, UENR4227, "Transmission Planetary- Assemble" for details.

  6. Reinstall the transmission (A). Refer to Disassembly and Assembly, UENR4227, "Transmission - Remove and Install" for details.

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