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AIR COMPRESSOR 11-GALLON (41.6 L) - 058-8386-8
AIR COMPRESSOR 11-GALLON (41.6 L) - 058-8386-8
To check safety valve
WARNING!
Risk of bursting. If the safety valve does not work properly, over-
pressurization may occur, causing air tank rupture or an explosion.
•
Before starting compressor, pull the ring on the safety valve (D) to make
sure that the safety valve operates freely. If the valve is stuck or does
not operate smoothly, contact a trained service technician.
To drain tank
NOTE:
Allow unit to cool before draining tank. Drain valve (I) becomes hot during
operation.
1.
Set the pressure switch (C) to the
OFF
position.
2.
Unplug the power cord (K).
3.
Turn air pressure regulator knob (E) counter-clockwise to set the outlet pressure to zero.
4.
Pull and hold ring on safety valve (D), allowing air to bleed from the tank until air pressure is
minimized.
5.
Place suitable container under unit to catch water.
6.
Slightly tilt unit and turn drain valve (I) counter-clockwise to open.
WARNING!
Risk of bursting. Water will condense in the air tank. If not drained,
water will corrode and weaken the air tank, causing a risk of air tank rupture.
7.
After the water has been drained, close the drain valve (I) (clockwise). The air compressor can
now be stored.
WARNING!
If any of the following symptoms appears while operating the product, stop
using the product immediately, or serious personal injury could result. Only an authorized
service centre should perform repairs on this product.
Disconnect the electrical plug and disconnect any tools from air supply before attempting any
adjustment.
NOTE:
Troubleshooting problems may have similar causes and solutions.
PROBLEM
POSSIBLE CAUSES
SOLUTIONS
The motor
will not run or
start.
The power cord is not plugged in.
Plug the power cord into a grounded outlet.
The pressure switch is in the
OFF
position.
Set the pressure switch to the
ON
position.
The extension cord is the wrong
wire gauge or is too long.
Check
Technical Specifications
proper wire gauge and cord length.
The motor’s thermal overload
protection has tripped.
Turn the air compressor off, unplug the power
cord and wait until the motor has cooled
down. Plug in the power cord only after the
motor has cooled down, however wait at least
5 minutes to make sure the thermal overload
protector has recovered.
A fuse has blown or a circuit
breaker has been tripped.
Replace the fuse or reset the circuit breaker.
Verify that the fuse has the proper amperage.
Check for low voltage conditions.
Disconnect any other electrical appliances
from the circuit or operate the compressor on
a dedicated circuit.
The air tank pressure exceeds the
preset pressure switch limit.
The motor will start automatically when the
tank pressure drops below the cut-in
pressure.
The safety valve is stuck open.
Clean or replace the safety valve.
Electrical connections are loose.
Have the compressor serviced by a qualified
technician.
The motor, capacitor or safety
valve is defective.
Have the compressor serviced by a qualified
technician.
The motor
runs
continuously
when the
pressure
switch is in the
ON
position.
The pressure switch does not
shut off the motor when the air
compressor reaches the cut-out
pressure and the safety valve
activates.
Set the pressure switch to the
OFF
position.
If the motor does not shut off, unplug the air
compressor. If the pressure switch is defective,
replace it.
The compressor’s capacity is not
enough.
Check the air requirements of the accessory
that is being used. If it is higher than the SCFM
(
Standard Cubic Feet per Minute
, page 3) and
pressure supplied by the compressor, a larger
capacity air compressor is needed. Most
accessories are rated at 25% of actual SCFM
while running continuously.
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058-8386-8-Mastercraft-11G-3HP-Air-Compressor-EN-08.indd 19-20
7/4/12 11:26 AM
