SYMPTOM
Insufficient pressure at air tool or
accessory.
Air compressor not making enough
air.
Air leaks from easy start valve.
Air continues to leak at pressure
switch bleed off while motor is run-
ning.
Air continues to leak at pressure
switch bleed off while motor is
stopped.
Air blowing from air intake filter.
Air leaks at pump.
Air leaks from safety relief valve.
Mi-T-M
Hand Carry Electric Air Compressor Manual
®
TROUBLESHOOTING
PROBABLE CAUSE
Pressure regulator not turned to
high enough pressure or defective.
Air leaks or restrictions.
Restricted air intake filter.
Hose or hose connections are too
small or long.
Air compressor is not large enough
for air requirement.
Restricted check valve.
Restricted air intake filter.
Defective (reed) valve.
Defective or incorrectly sized easy
start valve.
Defective pressure switch.
Air bleed off line is loose.
Defective check valve.
Defective inlet (reed) valve.
Defective gaskets.
Possible defective safety relief
valve.
Excessive air tank pressure.
REMEDY
Adjust pressure regulator to proper
setting or replace.
Check for leaks and repair.
Clean or replace air intake filter.
Replace with larger hose or
connectors.
Check the accessory air require-
ment. If it is higher than the
CFM or pressure supply of the air
compressor, you need a larger air
compressor.
Clean or replace.
Clean or replace.
Drain air tank and measure pump
up time. Compare to specifications.
If lower, remove pump head and in-
spect valve plate, clean or replace.
If air tank pressure gauge registers
over 40 PSI, easy start valve is
defective. Replace.
If air tank pressure gauge registers
under 40 PSI, your altitude may
require an easy start valve with a
lower PSI rating.
Replace.
Tighten connection.
Remove, clean or replace.
Replace.
Replace gaskets and torque head
bolts as stated in parts list.
Operate safety relief valve manual-
ly by pulling on ring. If it still leaks,
it should be replaced.
Defective pressure switch. Reset
or replace.
17