Precaution For High Fuel Pressure; Safety Handling High-Pressure Hoses; Precaution For High Voltage - Komatsu PC750LC-7 Operation Manual

SAFETY MAINTENANCE INFORMATION SAFETY MAINTENANCE INFORMATION
There is a hazard that high-pressure oil leaking from small holes
may penetrate your skin or cause blindness if it contacts your
eyes directly. If you are hit by a jet of high-pressure oil and suffer
injury to your skin or eyes, wash the place with clean water, and
consult a doctor immediately for medical attention.

PRECAUTION FOR HIGH FUEL PRESSURE

High pressure is generated inside the engine fuel piping when the engine is running. When carrying out inspection
or maintenance of the fuel piping system, wait for at least 30 seconds after stopping the engine to let the internal
pressure go down before starting inspection or maintenance.

SAFETY HANDLING HIGH-PRESSURE HOSES

If oil or fuel leaks from high-pressure hoses, it may cause fire or defective operation, which may lead to serious
injury. If any loose bolts are found, stop work and tighten to the specified torque. If any damaged hoses are found,
stop operations immediately and contact your Komatsu distributor.
Replace the hose if any of the following problems are found.
Damaged or leaking hydraulic fitting.
Frayed or cut covering or exposed reinforcement wire layer.
Covering swollen in places.
Twisted or crushed movable portion.
Foreign material embedded in covering.

PRECAUTION FOR HIGH VOLTAGE

When the engine is running and immediately after it is stopped,
high voltage is generated inside the engine controller and the
engine injector, and there is danger of electrocution. Never
touch the inside of the controller or the engine injector portion.
If it is necessary to touch the inside of the controller or the engine
injector portion, please contact your Komatsu distributor.
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SAFETY SAFETY