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M51481A
Owner’s Manual
12V DC Portable Air Compressor
Instructions for Installation/Set-up, Operation, Maintenance & Storage
This NorthStar® compressor has a single-stage, single-cylinder pump made with a heavy-duty cast iron cylinder for
long life, and a compact design rated for 135 maximum PSI. Its continuous-duty rating ensures long-lasting
performance, and its cast iron pump head ensures superior heat dissipation.
Read and understand this Owner’s Manual completely before using. Keep this manual for future review. Failure to
properly set up, operate and maintain the compressor in accordance with this manual could result in serious injury or
death to operator or bystanders.
WARNING: SPECIAL HAZARDS
Injection Injury
: High-pressure air stream can pierce skin and underlying tissues, leading to serious injury and possible
amputation. Such an injection injury can result in blood poisoning and/or severe tissue damage.
Flying Debris
: High-pressure air stream can cause flying debris and possible surface damage.
Not For Breathing Air:
NorthStar compressors are NOT designed, intended, or approved for supplying breathing air. No
compressed air should be used for breathing unless air is treated in accordance with applicable standards.
Fire/Explosion
: Sparks from air powered tool heads or attachments can ignite fuel or other flammable liquids or vapors in
the vicinity. Exceeding the maximum pressure for air tools or attachments could cause them to explode.
Burns
: Compressor pump, motor and discharge tubing are hot surfaces that can cause burn injuries.
Electric Shock
: Operating equipment in wet conditions or where not properly grounded can cause electric shock.
Detailed safety
information about these hazards appears throughout this manual.
Equipment Protection Quick Facts
Inspect Upon Delivery:
FIRST! Inspect for missing or damaged components. See the
“Initial Set-Up”
section for
instructions on reporting missing or damaged parts.
Pump:
The
Pump is an oil-free design. No oil is required.
Regulator:
This air compressor includes a regulator to maintain constant pressure in the outlet hose line and provide
reduced pressure to the appropriate air tool being used.
Run Pump Unloaded for Break-in Period:
Before initial use, run the compressor for 30 minutes to break in the
pump parts.
Follow Maintenance Schedule:
Pump, air filter, and tank require periodic inspection and servicing to provide
efficient function and long life. See “
Maintenance Schedule
” for frequency of servicing.
ITEM NUMBER: 51481
SERIAL NUMBER: _____________
