DD15 Engine

Section 2.1 General Safety Precautions to Observe When Working On the System

Section 2.1
General Safety Precautions to Observe When Working On the System

The following safety measure is essential when servicing components of the fuel system.‪

warning

PERSONAL INJURY

To prevent the escape of high pressure fuel that can penetrate skin, ensure the engine has been shut down for a minimum of 10 minutes before servicing any component within the high pressure circuit. Residual high fuel pressure may be present within the circuit.‪

Section 2.1.1
EXHAUST (START/RUN ENGINE)

Before starting and running the engine, adhere to the following safety precautions:‪

caution

EXHAUST FUMES

To avoid injury or injury to bystanders from fumes, engine or vehicle fuel system service operations should be performed in a well ventilated area.‪

warning

HOT EXHAUST

During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if directed at combustible materials. The vehicle must be parked outside.‪

warning

PERSONAL INJURY

To avoid injury, never remove any engine component while the engine is running.‪

warning

PERSONAL INJURY

To avoid injury from hot surfaces, wear protective gloves, or allow engine to cool before removing any component.‪

warning

PERSONAL INJURY

To avoid injury when removing or installing a heavy engine component, ensure the component is properly supported and securely attached to an adequate lifting device to prevent the component from falling.‪

Section 2.1.2
FLUIDS AND PRESSURE

Be extremely careful with fluids under pressure.‪

warning

FIRE AND TOXICITY

Some pressurized fluid may be trapped in the system. To avoid personal injury, loosen all connections slowly to avoid contact with fluid. When required, spray fluid into a proper container. The engine starting fluid used in DDEC Ether Start Systems contains extremely flammable and toxic substances.‪

warning

PERSONAL INJURY

To avoid injury from penetrating fluids, do not put your hands in front of fluid under pressure. Fluids under pressure can penetrate skin and clothing.‪

Fluids under pressure can have enough force to penetrate the skin. These fluids can infect a minor cut or opening in the skin. If injured by escaping fluid, see a doctor at once. Serious infection or reaction can result without immediate medical treatment.‪

Section 2.1.3
GLASSES

Select appropriate safety glasses for the job. It is especially important to wear safety glasses when using tools such as hammers, chisels, pullers, or punches.‪

caution

EYE INJURY

To avoid injury from flying debris, wear a face shield or goggles.‪

Section 2.1.4
FIRE

Keep a charged fire extinguisher within reach. Be sure you have the correct type of extinguisher for the situation. ‪

Fire Extinguisher

Work Environment

Type A‪

Wood, Paper, Textile, and Rubbish‪

Type B‪

Flammable Liquids‪

Type C‪

Electrical Equipment‪

Table 10. The Correct Type of Fire Extinguisher
warning

FIRE

To avoid injury from fire caused by heated diesel-fuel vapors:‪

  • Keep those people who are not directly involved in servicing away from the engine.
  • Stop the engine immediately if a fuel leak is detected.
  • Do not smoke or allow open flames when working on an operating engine.
  • Wear adequate protective clothing (face shield, insulated gloves and apron, etc.).
  • To prevent a buildup of potentially volatile vapors, keep the engine area well ventilated during operation.

Section 2.1.5
BATTERIES

Electrical storage batteries give off highly flammable hydrogen gas when charging and continue to do so for some time after receiving a steady charge.‪

Disconnect the battery from the starting system by removing one or both of the battery cables (disconnect negative [ground] cable first). With the electrical circuit disrupted, accidental contact with the starter button will not produce an engine start.‪

warning

Battery Explosion and Acid Burn

To avoid injury from battery explosion or contact with battery acid, work in a well ventilated area, wear protective clothing, and avoid sparks or flames near the battery. If you come in contact with battery acid:‪

  • Flush your skin with water.
  • Apply baking soda or lime to help neutralize the acid.
  • Flush your eyes with water.
  • Get medical attention immediately.

Section 2.1.6
CLOTHING

Make sure that safe work clothing fits and it is in good condition. Use work shoes that are sturdy and rough soled. Bare feet, sandals, or sneakers are not acceptable foot wear when adjusting and/or servicing an engine. Do not wear rings, wrist watches, bracelets, necklaces, and loose fitting clothing that could catch on moving parts causing serious injury.‪

warning

PERSONAL INJURY

To avoid injury when working near or on an operating engine, remove loose items of clothing and jewelry. Tie back or contain long hair that could be caught in any moving part causing injury.‪

Section 2.1.7
AIR

Observe the following caution when using compressed air.‪

warning

EYE INJURY

To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 276 kPa (40 psi) air pressure.‪


DD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037
Generated on 10-13-2008

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