621K, 623K, and 627K Wheel Tractor-Scrapers Systems Caterpillar


Hydraulic Cylinder (Bowl)

Usage:

621K WTA


Illustration 1g03452258

Table 1
Specifications for 345-9806 Bowl Cylinder 
Item  Qty  Part  Specification Description 
167-2235 Buffer Seal As  Lubricate the sealing lips of the buffer seal lightly with the lubricant that is being sealed. 
167-2299 U-Cup Seal  Lubricate the sealing lips of the U-Cup seal lightly with the lubricant that is being sealed. 
278-2324 Wiper Seal  Lubricate the sealing lips of the wiper seal lightly with the lubricant that is being sealed. 
Before assembly, Apply Loctite 609 to the groove for the wiper seal . 
346-5152 Cylinder As  Bore is 140 mm (5.5 inch)
346-5151 Rod As  Diameter is 69.950 ± 0.038 mm (2.7540 ± 0.0015 inch)
345-9799 Head  Bore over two lands is 70.58 ± 0.03 mm (2.779 ± 0.001 inch)
246-9113 Retainer  Before assembly, Apply blue Loctite 242 to the threads.
Torque to 35 ± 5 N·m (26 ± 4 lb ft)
2J-0564 Locknut  Before assembly, lubricate the threads with clean hydraulic oil.
Torque to 3400 ± 340 N·m (2508 ± 251 lb ft)
251-3587 Bearing  Bore before assembly is 57.4 mm (2.26 inch).
Installation depth is 2.6 ± 0.5 mm (0.10 ± 0.02 inch)

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