CODE
POSSIBLE CAUSE
13
Loose belt
14
Engine mount ing bolts are loose
15
Pump stiffener bracket bolt is loose
16
Loose pulley
17
Loose flywheel
18
Carbon build-up in pump
19
Belt to tight
20
Pulley misalignment
21
Air tank pressure is too high
POSSIBLE SOLUTION
Check belt tension, see Adjusting Belt Tension under
Maintenance.
Tighten mounting screws. Torque engine mounting bolts to
10– 20 ft.-lbs. (13.5–27.1 Nm).
WARNING: Risk of bursting. Excessive vibration could
weaken the air tank and cause it to rupture or explode.
Mounting screws must be kept tightened.
Check bolt and tighten if required. Torque pump stiffener
bracket bolt to 10– 20 ft.-lbs. (13.5–27.1 Nm).
WARNING: Risk of bursting. Excessive vibration could
weaken the air tank and cause it to rupture or explode.
Stiffener bracket bolt must be kept tightened. Never operate
the unit unless equipped with the stiffener bracket.
Tighten pulley set screw, torque to 145–180 in.-lbs.
(16.4– 20.3 Nm).
Tighten
flywheel
screw,
(29.8–35.26 Nm).
Contact a D
WALT factory service center or a D
E
authorized service center.
Check belt tension, see Adjusting Belt Tension under
Maintenance.
See
Motor
Pulley/Flywheel
Maintenance.
Open the regulator and reduce air tank pressure to less
than 40 PSI.
23
torque
to
22–26
ft.-lbs.
WALT
E
Alignment
under