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10. Fill pump with DeWALT synthetic compressor oil. Oil should not
exceed top raised line on side of crackcase. (Oil will be even with
bottom of threads in crankcase fill port.)
11. Replace oil fill plug and tighten securely.
12. Reconnect spark plug wire.
WARNING: Hot surfaces. Risk of burn. Aftercooler, pump head,
and surrounding parts are very hot, do not touch (see the Hot
Surfaces identified in Fig. 2). Allow compressor to cool prior to
servicing.
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 six belt guard mounting screws (two on the pump head
and four on the deck).
6. Remove belt cover.
7. Measure belt tension. Proper tension is achieved when a three
(3) pound weight or equivalent finger pressure applied midway
between the motor pulley and compressor flywheel causes a
1/4" (6.35 mm) deflection of the belt. If adjustment is needed see
Adjusting Belt Tension under Maintenance.
8. Replace belt guard.
9. Reconnect spark plug wire.
WARNING: Hot surfaces. Risk of burn. Aftercooler, pump head and
surrounding parts are very hot, do not touch (see the Hot Surfaces
identified in Fig. 2). Allow compressor to cool prior to servicing.
1. Follow procedures 1-6 in Checking Belt Tension under
Maintenance.
NOTE: The engine will be mounted in the slotted holes on the deck,
determine this before continuing.
2. Scribe a mark at the base of the engine (whichever is mounted
in the slotted holes) on the deck to be used as a reference.
3. Loosen but do not remove four engine mounting nuts.
4. Loosen but do not remove bolt securing stiffener bracket to
engine.
5. Remove the belt.
6. Scribe a mark approximately 1/8" (3.2 mm) from the original
mark.
7. Slide the engine to the new mark and retighten the engine
mounting nuts.
WARNING: Risk of moving parts. Use caution when rolling
belt onto flywheel, fingers can get caught between the belt and
flywheel.
8. With the engine secure, roll the belt over the flywheel and the
pulley.
9. Check the belt tension again. See Step 7 in Checking Belt
Tension under Maintenance.
10. When tension is correct, torque four engine mounting nuts
(torque to 15– 22 ft-lbs/20-30 Nm), stiffener bracket bolts (Torque
to 15–22 ft.- lbs./20-30 Nm), and replace belt cover.
11. Reconnect spark plug wire.
The air compressor flywheel and engine pulley must be in-line (in
the same plane) within 1/16" (1.6 mm) to ensure belt retention within
flywheel belt grooves. To check alignment: