Terex Evoquip Bison 120, Руководство по эксплуатации, Страница: 28 / 224

2 Safety
Operations Manual
Bison 120
20-07-2018
Page 2-12
Revision 2.0
(6) Hydraulic and Pneumatic Safety
Only persons having special knowledge and experience in hydraulic and pneumatic systems
must carry out work on hydraulic and pneumatic equipment. Never disable or alter any hydraulic
circuit or component without consulting with EvoQuip.
Relieve all pressure in the hydraulic system by returning all controls to the neutral position. Turn
off the machine and isolate power supply before any pipes, filter caps, filters, or hydraulic fittings
are disconnected or removed. Depressurize all system sections and pressure pipes (hydraulic
system, compressed air system) to be removed in accordance with the specific instructions for
the unit concerned before carrying out any repair work.
Hydraulic oil and equipment can become hot when working. There is a high risk of a burn hazard.
A minimum cooling down time of 90 minutes must be allowed before any maintenance activities
are carried out on the engine and powerunit. These cool down times reduce the risk of a burn
hazard. Wear gloves when working with hydraulic and pneumatic equipment. Gloves must always
be worn when working with hydraulic and pneumatic equipment.
Check for leaks in tanks or tubing with flashlights or other proper equipment. Never check for
leaks using an open flame to. Always check for leaks by using a piece of cardboard. Do not use
your hand. Hydraulic fluid under pressure can penetrate the skin causing serious injury. If fluid is
injected under the skin, it must be surgically removed or gangrene could result. Get medical help
immediately if this occurs. Wear personal protective equipment including goggles and gloves.
Check all lines, hoses, and screwed connections regularly for leaks and obvious damage. Splashed
oil can cause injury and fire. Repair any damage immediately.
Hydraulic and compressed air lines must be laid and fitted properly. Ensure that no connections
are interchanged. The fittings, lengths, and quality of the hoses must comply with the technical
requirements.
Always practice extreme cleanliness when servicing hydraulic components.
Do not exceed safe limits. Never set a pressure relief valve to a pressure higher than the factory
setting.
For questions concerning accumulators, which are pressure-containment vessels, contact your
EvoQuip distributor. Malfunctioning valves or poor maintenance practices can result in build-up
of high hydraulic and/or pneumatic pressures inside the accumulator.