VENTURI 1F662 2F7951 - Caterpillar

Removal Procedure
Start By:
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release" for the correct procedure.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed.Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death.Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
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Remove cover (1) .
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Release the hydraulic pressure from the cylinder. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release" for the correct procedure.
Remove four bolts (2) and the washers in order to remove lock valve (3) from telescoping cylinder (4) .
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Remove three O-ring seals (5) from lock valve (3) .Installation Procedure
Clean all parts and inspect all parts. If any parts are worn or damaged, use new Caterpillar parts for replacement.
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Apply a thin coat of 1U-6396 O-Ring Assembly Compound to O-ring seals (5) before installing the O-ring seals into lock valve (3) .
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Position lock valve (3) onto telescoping cylinder (4) and install four bolts (2) and the washers.
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Install cover (1) .