Troubleshooting Codes - DeWalt D55170 Guide D'utilisation

CODE POSSIBLE CAUSE
1 Pilot valve does not release pressure when air tank reaches
blow-off pressure
2 Fittings are not tight
3 Defective pilot valve
4 Defective air tank
5 Leaking seals
6 Defective safety valve
7 Prolonged excessive use of air
8 Compressor is not large enough for accessory
9 Hole in air hose
10 Pilot valve restricted
11 Unit operating in damp or humid conditions
12 Restricted air intake filter

Troubleshooting Codes

POSSIBLE SOLUTION
Pilot valve must be replaced. Contact a D
vice center or a D
Tighten fittings where air can be heard escaping. Check fit-
tings with soapy water solution. DO NOT OVERTIGHTEN.
Turn off motor, rotate manual lock unloader lever to the closed
perpendicular position. If air leaks out of air tank through
pilot valve, replace pilot valve.
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.
Contact a D
authorized service center.
Operate safety valve manually by pulling on ring. If valve still
leaks, it must be replaced.
Decrease amount of air usage.
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.
Check and replace air hose, if required.
Remove, clean or replace.
Move unit to a dry well ventilated area.
Clean or replace air intake filter.
27
WALT factory ser-
E
WALT authorized service center.
E
WALT factory service center or a D
E
WALT
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