MOUNTING GP-CYLINDER 3378935 - Caterpillar

Caterpillar Products:
AllReference: Special Instructions, REHS1391, "Installation of Double Lip Wiper Seal"Reference: Special Instructions, REHS1392, "Installation of Vented Buffer Seal Assembly, U-Cup Seal Assembly, and Double Lip Wiper Seal for Hydraulic Cylinders"The double lip wiper seal must be installed in the correct orientation. The double lip wiper seal is installed differently than the single lip wiper seal.
Illustration 1 g00942173
(1) single lip wiper seal (1A) Can (2) Double lip wiper seal (2A) CanWhen single lip wiper seal (1) is installed, the flat surface of can (1A) faces out of the cylinder head. When double lip wiper seal (2) is installed, the metal lip of can (2A) faces into the cylinder head.The references can provide additional information regarding the installation of double lip wiper seals. The references are packaged with the applicable parts. The references can also be obtained through the normal literature distribution system. The references are also available through the Caterpillar Service Information System (SIS).