Dewalt DXCMTB5590856 Instruction Manual - Page 25

Troubleshooting Codes

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English CODE 1 2 3 4 5 6 7 8 9 10 11 12 Troubleshooting Codes POSSIBLE CAUSE POSSIBLE SOLUTION Unloader valve does not release pressure when Unloader valve must be replaced. Contact a DeWALT factory air tank reaches blow-off pressure service center or a DeWALT authorized service center. Fittings are not tight Tighten fittings where air can be heard escaping. Check fittings with soapy water solution. DO NOT OVERTIGHTEN. Defective unloader valve Turn off engine, rotate manual lock unloader lever to the closed perpendicular position. If air leaks out of air tank through unloader valve, replace unloader valve. 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. Unloader valve restricted Remove, clean or replace. 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. 25

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25
English
Troubleshooting Codes
CODE
POSSIBLE CAUSE
POSSIBLE SOLUTION
1
Unloader valve does not release pressure when
air tank reaches
blow-off
pressure
Unloader valve must be replaced. Contact a D
E
WALT factory
service center or a D
E
WALT authorized service center.
2
Fittings are not tight
Tighten fittings where air can be heard escaping. Check fittings
with soapy water solution. DO NOT OVERTIGHTEN.
3
Defective unloader valve
Turn off engine, rotate manual lock unloader lever to the
closed
perpendicular position. If air leaks out of air tank through
unloader valve, replace unloader valve.
4
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.
5
Leaking seals
Contact a D
E
WALT factory service center or a D
E
WALT authorized
service center.
6
Defective safety valve
Operate safety valve manually by pulling on ring. If valve still
leaks, it must be replaced.
7
Prolonged excessive use of air
Decrease amount of air usage.
8
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.
9
Hole in air hose
Check and replace air hose, if required.
10
Unloader valve restricted
Remove, clean or replace.
11
Unit operating in damp or humid conditions
Move unit to a dry well ventilated area.
12
Restricted air intake filter
Clean or replace air intake filter.