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English
CODE POSSIBLE CAUSE POSSIBLE SOLUTION
2 Defective air tank Air tank must be replaced. Do not repair the leak.
WARNING: Risk of bursting. Do not drill into, weld or other-
wise modify air tank or it will weaken. The air tank can rupture or
explode.
3 Leaking seals Contact a DeWALT factory service center or a D
e
WALT authorized
service center.
4 Defective safety valve Operate safety valve manually by pulling on ring. If valve still
leaks, it must be replaced.
5 Prolonged excessive use of air Decrease amount of air usage.
6 Compressor is not large enough for accessory Check the accessory air requirement. If it is higher than the SCFM
or pressure supplied by your air compressor, a larger compressor
is needed to operate accessory.
7 Hole in air hose Check and replace air hose, if required.
8 Unit operating in damp or humid conditions Move unit to a dry well ventilated area.
9 Restricted air intake filter Clean or replace air intake filter.
10 Loose belt
Check belt tension, see Adjusting Belt Tension under
Maintenance.
11
Loose pulley Tighten pulley set screw, torque to 85-90 in.-lbs. (9.6–10.2Nm).
12
Loose flywheel Tighten flywheel screw, torque to 14–18 ft.-lbs.
(20.0–24.4 Nm).
13
Carbon build-up in pump Contact a D
e
WALT factory service center or a D
e
WALT authorized
service center.
14
Belt to tight
Check belt tension, see Adjusting Belt Tension under
Maintenance.
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