Precautions With The Battery; Handling High-Pressure Hoses; Precautions With High-Pressure Oil; Maintenance Near High Temperatures And High Pressures - Komatsu 730E Shop Manual

Precautions With The Battery

• When repairing the
electrical system, or
when arc welding,
remove the negative (-)
terminal of the battery to
stop the flow of current.
Handling High-Pressure
Hoses
• DO NOT bend or hit high-pressure hoses. DO
NOT use bent or cracked piping, tubes, or hoses.
They may burst during use.
• Repair any loose or broken hoses. Fuel and/or oil
leaks may result in a fire.

Precautions With High-Pressure Oil

• Hydraulic circuits may be pressurized. Ensure
that all pressure is released before loosening
hydraulic fittings or hoses.
• DO NOT service a system before completely
releasing the internal pressure.
• Small, high-pressure pinhole leaks are extremely
dangerous. The jet of high-pressure oil can
pierce the skin and eyes. Wear safety glasses
and thick gloves. Use a piece of cardboard or a
sheet of wood to check for oil leakage.
A03048
Maintenance Near High Temperatures And High
Pressures
• Immediately after stopping, the
engine coolant and operating
oils are at high temperature and
may be pressurized. In these
conditions, opening the system
or replacing the filters, may
result in burns or other injury. Wait for the
temperature to cool and the pressure to subside
before servicing.

Rotating Fan And Belts

• Keep a safe distance from
rotating parts, such as the
radiator fan and fan belts.
• Serious bodily injury may
result
indirect
rotating parts and flying objects.

Waste Materials

• DO NOT dump oil or other
harmful fluids into a sewer
system, rivers, etc.
• Obey appropriate laws and
regulations when disposing
of harmful objects, such as
oil, fuel, coolant, solvent,
filters, batteries, and others.
• Drain
appropriate containers. DO NOT drain fluids
directly onto the ground.
General Safety & Operation
from direct or
contact with
fluids from your machine into the
A3-15