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1. Ensure engine START/RUN/OFF switch (C) is in the OFF
Position.
2. Allow the unit to cool.
3. Disconnect spark plug wire.
4. Drain air tank.
5. Remove outer belt cover.
6. Place a straightedge
X
V
W
A1
A1
A2
A2 B1 B2
B1 B2
Y
(V) against the outside
of the flywheel (W) and
the engine drive pulley
(X).
7. Measure the distance
between the edge of
the belt (Y) and the straightedge at points A1 and A2 in Figure.
The difference between mea sure ments should be no more than
1/16" (1.6 mm).
8. If the difference is greater than 1/16" (1.6 mm), loosen the
setscrew holding the engine drive pulley to the shaft and adjust
the pulley's position on the shaft until the A1 and A2 mea sure-
ments are within 1/16" (1.6 mm) of each other.
9. Tighten the engine drive pulley setscrew. Torque to 145–180 in.-
lbs. (16.4– 20.3 Nm).
10. Visually inspect the engine drive pulley to verify that it is
perpendicular to the drive motor shaft. Points B1 and B2 of Figure
should appear to be equal. If they are not, loos en the setscrew of
the engine drive pulley and equal ize B1 and B2, using care not to
disturb the belt align ment per formed in Step 8.
11. Retighten the engine drive pulley set screw. Torque to
145– 165 in.-lbs. (16.4–18.6 Nm).
12. Reinstall belt guard.
13. Reconnect spark plug wire.
Recommended accessories for use with your tool are available
for purchase from your local dealer or authorized service center.
If you need assistance in locating any accessory for your tool,
please contact D
e
WALT Industrial Tool Co., 701 East Joppa Road,
Baltimore, MD 21286, call 1-800-4-D
eWALT (1-800-433-9258) or
visit our website www.dewalt.com.
CAUTION: The use of any other accessory not recommended for
use with this tool could be hazardous. Use only accessories rated
equal to or higher than the rating of the air compressor.
Please have the following information available for all service calls:
Model Number ____________ Serial Number ___________
Date and Place of Purchase ____________________________
To assure product SAFETY and RELIABILITY, repairs, maintenance
and adjustment should be performed by a D
e
WALT factory service
center, a D
e
WALT authorized service center or other qualified
service personnel. Always use identical replacement parts.
DeWALT heavy duty industrial tools are warranted for one year from
date of purchase. We will repair, without charge, any defects due
to faulty materials or workmanship. For warranty repair information,
call 1-800-4-D
e
WALT. This warranty does not apply to accessories
or damage caused where repairs have been made or attempted by
others. This warranty gives you specific legal rights and you may
have other rights which vary in certain states or provinces.