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CODE POSSIBLE CAUSE POSSIBLE SOLUTION
13 Loose belt Check belt tension, see Adjusting Belt Tension under
Maintenance.
14 Engine mount ing bolts are loose Tighten mounting screws. Torque engine mounting bolts to
15– 22 ft-lbs (20-30 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.
15 Pump stiffener bracket bolt is loose Check bolt and tighten if required. Torque pump stiffener
bracket bolt to 15– 22 ft-lbs (20-30 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.
16
Loose pulley Tighten pulley set screw, torque to 145–180 in.-lbs.
(16.4– 20.3 Nm).
17
Loose flywheel Tighten flywheel screw, torque to 15–18 ft.-lbs.
(20.3–24.4 Nm).
18
Carbon build-up in pump Contact a D
e
WALT factory service center or a D
e
WALT
authorized service center.
19
Belt to tight Check belt tension, see Adjusting Belt Tension under
Maintenance.
20
Pulley misalignment See Motor Pulley/Flywheel Alignment under
Maintenance.
21
Air tank pressure is too high Open the regulator and reduce air tank pressure to less
than 40 psi.