Unloader Valve - DeWalt D55271 Instruction Manual

WARNING: RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN
• Unsafe op er a tion of your air
compressor could lead to se ri-
ous in ju ry or death to you or
others.
HOW TO PREVENT IT
• Review and understand all
instructions and warnings in this
manual.
• Be come fa mil iar with the op er-
a tion and con trols of the air
compressor.
• Keep operating area clear of all
persons, pets, and obstacles.
• Keep chil dren away from the air
compressor at all times.
• Do not operate the product
when fatigued or under the
influence of alcohol or drugs.
Stay alert at all times.
• Never defeat the safety fea tures
of this prod uct.
• Equip area of operation with a
fire extinguisher.
• Do not op er ate machine with
missing, broken, or un au tho-
rized parts.
• Never stand on the compressor.
WARNING: RISK OF INJURY FROM LIFTING
WHAT CAN HAPPEN
• Serious injury can result from
attempting to lift too heavy
an object.
CAUTION: RISK FROM NOISE
WHAT CAN HAPPEN
• Under some conditions and
duration of use, noise from
this product may contribute to
hearing loss.
SAVE THESE INSTRUCTIONS
FOR FUTURE USE
FEATURES

UNLOADER VALVE

When the maximum air tank pressure is obtained, the unloader
valve (H) will blow-off. This will cause the compressor to exhaust
the air to the atmosphere and not the tank.
Manual Lock: The manual lock allows you to manually unload the
compressor with air pressure in the air tank. To operate the manual
lock:
10
HOW TO PREVENT IT
• The compressor is too heavy
to be lifted by one person.
Obtain assistance from others
before lifting.
HOW TO PREVENT IT
• Always wear certified safety
equipment: ANSI S12.6
(S3.19) hearing protection.