English – DeWalt D55273 User Manual
Page 23
23
English
CODE
POSSIBLE CAUSE
POSSIBLE SOLUTION
21
Air tank pressure is too high
Open the regulator and reduce air tank pressure to less
than 40 PSI (275.8 kPa).
22
Engine problem
Contact a D
E
WALT factory service center or a D
E
WALT
authorized service center
23
Engine or pump oil is low
Add D
E
WALT synthetic compressor oil to pump. See
Compressor Pump Oil under Maintenance.
24
It is normal for some pressure drop to occur
If there is an excessive amount of pressure drop when the
accessory is used, adjust the regulator as instructed in
Regulator under Features.
NOTE: Adjust the regulated pressure under flow conditions
while accessory is being used.
25
Damaged regulator
Replace.
26
Detergent type oil being used in pump
Drain oil and refill pump with D
E
WALT synthetic compressor
oil.
27
Extremely light duty cycles
Run unit for longer duty cycles. It is recommended to run at
high throttle 50-75% of the run time and idle for 25% of the
run time.
28
Piston rings damaged or worn
Contact a D
E
WALT factory service center or a D
E
WALT
authorized service center
29
Cylinder or piston damaged or worn
Contact a D
E
WALT factory service center or a D
E
WALT
authorized service center
30
Compressor cylinder finish worn
Contact a D
E
WALT factory service center or a D
E
WALT
authorized service center
31
Water in pump oil
Drain oil and refill pump with D
E
WALT synthetic compressor
oil.