CONNECTOR AS 1695701 - Caterpillar

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 attachments have been lowered, 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.
Personal injury or death can result from escaping fluid under pressure.Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.Always use a board or cardboard when checking for a leak.
Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine.To prevent personal injury or death, perform the following:Park the machine on a smooth, level surface.Lower the work tool to the ground and engage the parking brake.Stop the engine and remove the key.Block the wheels and install the steering frame lock.
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.
The main hydraulic pump relief valve is common to the circuits. The auxiliary circuit and the tilt circuit have makeup valves and check valves in the head ends and in the rod ends in order to prevent cylinder drift during movement of the valve spool.The relief valves in the auxiliary circuit and in the tilt circuit protect the components from pressures in the circuits when the control valves are in the HOLD position.
The oil pressure for opening the relief valves for the main system and for the auxiliary circuits must be within the specifications. Pressures that are too low will cause a decrease in the lifting force and in the dig characteristics. Pressures that are too high will cause a decrease in the life of hoses and of other components.
Circuit drift is caused by leakage past cylinder pistons, past O-ring seals in the control valves, past check valves that do not seat correctly or past makeup valves that do not seat correctly. Poor adjustments of the control valves or incorrect fit may also contribute to circuit drift.
Cycle times that are longer than normal result from oil leakage, from pump wear, or from the pump speed.If the basic tests indicate a leak in the circuit, install a flow meter and perform a test. This procedure will help to find the