Dewalt DXCM251 Instruction Manual - Page 26

Troubleshooting Codes

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English CODE 1 2 3 4 5 6 7 8 9 10 11 12 13 Troubleshooting Codes POSSIBLE CAUSE POSSIBLE SOLUTION Fittings are not tight. Tighten fittings where air can be heard escaping. Check fittings with soapy water solution. DO NOT OVERTIGHTEN. Defective air tank. Air tank must be replaced. Do not repair the leak. WARNING: Risk of bursting. Do not drill into, weld or otherwise modify air tank or it will weaken. The air tank can rupture or explode. Leaking seals. Contact a DeWALT factory service center or a DeWALT authorized service center. Defective safety valve. Operate safety valve manually by pulling on ring. If valve still leaks, it must be replaced. Prolonged excessive use of air. Decrease amount of air usage. 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. Hole in air hose. Check and replace air hose, if required. Unit operating in damp or humid conditions. Move unit to a dry, well ventilated area. Restricted air intake filter. Clean or replace air intake filter. Loose belt. Check belt tension, see Adjusting Belt Tension under Maintenance. Loose pulley. Tighten pulley set screw, torque to 145-180 in.-lbs. (16.4-20.3 Nm). Loose flywheel. Tighten flywheel screw, torque to 13-16 ft.-lbs. (17.6-21.7 Nm). Carbon build-up in pump. Contact a DeWALT factory service center or a DeWALT authorized service center. 26

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26
English
Troubleshooting Codes
CODE
POSSIBLE CAUSE
POSSIBLE SOLUTION
1
Fittings are not tight.
Tighten fittings where air can be heard escaping. Check fittings
with soapy water solution. DO NOT OVERTIGHTEN.
2
Defective air tank.
Air tank must be replaced.
Do not repair the leak.
WARNING:
Risk of bursting. Do not drill into, weld or otherwise
modify air tank or it will weaken. The air tank can rupture or
explode.
3
Leaking seals.
Contact a D
E
WALT 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 145-180 in.-lbs. (16.4–20.3 Nm).
12
Loose flywheel.
Tighten flywheel screw, torque to 13–16 ft.-lbs. (17.6–21.7 Nm).
13
Carbon build-up in pump.
Contact a D
E
WALT factory service center or a D
E
WALT authorized
service center.