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INTRODUCTION
Hydraulic system safety
Hydraulic oil leaking under pressure can penetrate the skin and cause infection or other injury. To prevent personal
injury:
• Relieve all pressure before disconnecting fluid lines.
• Before applying pressure, make sure all connections are tight and components are in good condition.
• Never use your hand to check for suspected leaks under pressure. Use a piece of cardboard or wood for this
purpose.
• If injured by leaking fluid, seek medical attention immediately.
The hydraulic hoses and fittings on your machine meet engineering specifications for the particular function. When
replacing damaged, blown or worn hoses or fittings, use only manufacturer authorized service parts.
Care in hydraulic hose installation is a must:
• Make sure pressure is relieved before starting installation procedure.
• DO NOT kink or twist a hose, failure may occur.
• Properly route the hose.
• Have a certified hydraulic technician install the hose.
• Remove air from the hydraulic system after installing any hydraulic component.
DO NOT stand on or use a hose as a step. DO NOT pull or apply external forces to the hose. The hose may fail and
cause injury.
Keep all persons away from the working area. Mechanisms controlled by fluid power can become hazardous if a hose
fails. Lifted mechanisms can fall to the ground, machine steering may fail, etc.
Stay clear of a pressurized hose assembly that has blown apart. Hose fittings can be thrown off at high speed and a
loose hose can whip around with great force.
Hydraulic fluid can reach high temperatures. Allow fluid to cool before servicing the system.
Escaping fluid under pressure may form a mist or fine spray which can flash or explode upon contact with an ignition
source.
Vibration can reduce hose service life. Make sure all retaining clamps and/or devices are secured.
Environmental conditions can cause hose and fittings to deteriorate. Inspect hydraulic hoses periodically. Replace
worn or damaged hoses and fittings.
Periodically check hydraulic system for leaks or damage. Check for:
• Leaks at hose fittings or in hose.
• Damaged hoses and/or fittings.
• Kinked, crushed, flattened, hard blistered, heat cracked, charred, twisted, soft or loose covered hoses.
• Corroded or damaged fittings.
• Leaking ports.
• Excessive dirt and debris around hoses and/or fittings.
• Damaged or missing hose retaining clamps, guards, shields, etc.
47848279A 15/02/2017
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