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PIN 0000127 - Caterpillar

0000127 PIN Caterpillar parts PIN
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Caterpillar 0000127 PIN

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This instruction gives the procedure for installing the double lip wiper seal in the head of hydraulic cylinders.Installation of the Seal
Illustration 1 g00997424
Use sandpaper or emery cloth to scuff the surfaces of the counterbore in the cylinder head and the outside diameter (1A) of the wiper seal's metal shell.
Clean the counterbore in head (2) and the outside diameter (1A) of the wiper seal's metal shell with 8T-9011 Component Cleaner or 6V-1541 Quick Cure Primer . Clean the counterbore and the metal shell until neither of the components discolor a clean white towel.Note: The metal shell of the wiper seal is coated with a corrosion inhibitor. This may prevent proper bonding of the wiper seal to the cylinder head if the inhibitor is not removed. After cleaning, do not touch the counterbore or the metal shell because the oil from your fingers may prevent a good bond. Handle the seal by the lip only.
Apply 6V-1541 Quick Cure Primer on the counterbore and the metal shell. Allow the primer to dry. The primer will dry in approximately 30 seconds.
Apply 7M-7456 Bearing Mount Compound evenly but do not apply the compound excessively. Apply the compound to the counterbore and to the metal shell. Do NOT allow the compound to contact the sealing lip.
Install double lip wiper seal (1) into the cylinder head. Surface (1B) must face the rod end. There are no raised markings on the seal. Refer to Illustration 1 for the correct assembly position. The seal should be firmly seated against the bottom of the counterbore. Wipe away any excess bearing mount compound. Allow the compound to dry for 15 minutes before assembling the hydraulic cylinder.
Lightly lubricate the seals with clean hydraulic fluid before installing the head on the cylinder rod.

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