Manual de servicio

PDF Hydraulic Cylinder Service Manual

Hydraulic Cylinder Service Manual.1. Always drain the pressure from a hydraulic system before performingany service work. Disconnect hydraulic lines from head and cap ports of cylinder. 2. Completely disassemble the cylinder using the exploded and assembly views as reference. No special tools are required except internal snap ring pliers. The piston rod assembly consisting of piston, piston rod and head cushion bushing (where used) are locktited and secured at the factory and are not to be disassembled. 3. After disassembling the cylinder, wash all metal parts in a non-fl ammable solvent. Rinse each part thoroughly and blow dry with a low-pressure air jet. Arrange the parts on a clean surface. Examine each part carefully. Replace all seals and any other worn or damaged parts. 4. Particular attention should be given to the piston rod (item 10) since cylinder leakage can result from a damaged rod. A scored rod might damage the rod bearing and, subsequently, the rod packing. Rod cartridge kits come with a new rod bearing plus seals (see Seal Kit table on page 6 of this manual.). 1. Remove the hex head bolts (item 15) from the head end (item 1). On the ME5 mount only, the rod cartridge retainer plate is held in place by socket head cap screws, which must also be removed. 2. Remove the retainer plate or fl ange (item 5) from the head end. Locate the screwdriver slot along the top of the rod bearing (item 16). Using a fl athead screwdriver, carefully pry the rod cartridge loose from the head in a fashion similar to opening a can of paint. The rod bearing assembly includes the wiper (item 19a), the rod seal (item 19b), the bearing o-ring and backup ring (items 19c-d), and the rod bearing (item 16) itself.

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