Makita MAC1200 Air Compressor User Manual


 
STORAGE
Before you store the air compressor, make sure you do the
following:
1.
Review the “Maintenance” and ”Operating Procedures”
sections and perform maintenance as necessary. Be sure
to drain water from the air tank.
2.
Protect the electrical cord and air hose from damage (such
as being stepped on or run over), Wind them loosely around
the compressor handle.
Store the air compressor in a clean and dry location.
TROUBLESHOOTING
GUIDE
PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED AIR
SOURCES. PRIOR TO AlTEMPTING ANY REPAIRS, UNPLUG THE
COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.
PERSONAL INJURY MAY OCCUR.
PROBLEM
Excessive tank pressure -safety
valve pops
off.
Air leaks at fittings.
Air leaks ator inside checkvalve.
Air leaks at pressure switch re-
lease valve.
Air leaks in air tank or at air tank
welds.
Air leaks between head anc
valve plate.
Pressure reading on the regu
lated pressure gauge dropc
when an accessory is used.
Air leak from safety valve.
:AWE
’ressure switch does not shut
off
mo.
or when compressor reaches “cut,
~t“ pressure.
Pressure switch “cut-out” too high.
Tube fittings are not tight enough.
~~ ~
lefective or dirty check valve.
3efective pressure switch
release valve.
Defective check valve.
Defective air tank.
Leaking gasket.
It
is
normal for “some” pressure drop t’
occur.
Possible defect in safety valve.
9
CORRECTION
Move the pressure switch lever to the
“OFF“
position.
If
the outfit doesn’t shut
off,
unplug.
If
the electrical
contacts are welded together, replace the pressure
switch.
If the contacts are good, check
to
see
if
the pin in the
pressure release valve is stuck.
If
it
does not move
freely, replace the vaive.
Return the outfii to an authorized dealer to check and
adjust, or replace switch.
Tighten fittings where air can be heard escaping.
Check fittinas with soaw water solution.
DO
NOT
OVER-TIGHTEN.
J
A
defective check valve resutts in a constant air leak
at the pressure release valve where there
is
pressure
in the tank and the compressor is shut
off.
Remove
and clean or replace check valve.
DO NOT OVER-
TIGHTEN.
Remove and replace the release valve.
.
c
&
A
defective check valve results in a constant air leak
at the pressure release valve when there is pressure
in the tank and the compressor
is
shut
off.
Remove
and clean or replace check valve.
DO NOT OVER-
TIGHTEN.
Air tank must be replaced.
Do
not repair the leak.
DO
NOT DRILL INTO, WELD OR OTHERWISE
MODIFY AIR TANK OR IT WILL WEAKEN. THE
TANK CAN RUPTURE OR EXPLODE.
Torque head screws to
10
ft.
Ibs.
If
this does not stop
leak, replace gasket.
If there is an excessive amount
of
pressure drop when
the accessory is used, adjust the regulator following
the instructions on page 6.
NOTE
Adjust the regulated pressure under flow conditions
(while accessory is being used).
Operate safety valve manually by pulling on ring. If
valve still leaks, it should be replaced.