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HYDRAULICS & LUBRICATIONHYDRAULICS & LUBRICATION
Testing Backhoe Hydraulic System
1. Set the parking brake, start the tractor, engage the PTO at idol and raise the
engine RPM until 540 is achieved at PTO.
2. Exit the tractor.
3. Sitting in the backhoe operator’s seat, fasten seatbelt and raise and lower the
stabilizer legs and extend and retract the dipper stick.
4. Exit backhoe, stop engine, and check hydraulic uid level in tractor.
NOTE: For long term storage, coat exposed cylinder rods with grease.
WARNING
Escaping hydraulic / diesel uid under pressure can penetrate
the skin causing serious injury. Do not use your hand to check for
leaks. Use a piece of cardboard or paper to check for leaks. Stop
engine and relieve pressure before connecting or disconnecting
lines. Tighten all connections before starting engine or pressurizing
lines. If any liquid is injected into the skin, obtain medical attention
immediately or gangrene may result.
Hydraulic hose failure due to rubbing is NOT COVERED UNDER
WARRANTY. It is the end user’s sole responsibility to ensure that
hoses are fastened in such a way to prevent rubbing on components
of the machine, including other hoses. Periodically inspect the
machine for rubbing, and adjust hoses accordingly to prevent hose
failure. This is particularly important for the pressure hose and the
return hose to the hydraulic pump. These hoses must be secured
by the end user to prevent them from rubbing on the frame of
backhoe, or coming in contact with the ground.
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