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PISTON 2278553 - Caterpillar

2278553 PISTON Caterpillar parts PISTON
Alternative (cross code) number:
Caterpillar 2278553 PISTON

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For additional torque specifications, not included in this section, refer to "Torque Specifications," SENR3130, available from your Caterpillar dealer.Torque for Standard Hose Clamps - Worm Drive Band Type
The following chart gives the torques for initial installation of hose clamps on new hose and for reassembly or retightening of hose clamps on existing hose.
Torque for Standard Fasteners
The following charts give general torques for bolts, nuts and taperlock studs of SAE Grade 5 or better quality.
Torques for Bolts and Nuts With Standard Threads
Torques for Taperlock Studs
Torque for Metric Fasteners
Be very careful never to mix metric with U.S. customary (standard) fasteners. Mismatched or incorrect fasteners will cause machine damage or malfunction and may even result in personal injury.Original fasteners removed from the machine should be saved for reassembly whenever possible. If new fasteners are needed, they must be of the same size and grade as the ones that are being replaced.The material strength identification is usually shown on the bolt head by numbers (8.8, 10.9, etc.). The following chart gives standard torques for bolts and nuts with Grade 8.8.
Metric hardware must be replaced with metric hardware. Check parts manual for proper replacement.Torques for Bolts and Nuts
Torques for Taperlock Studs

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