DeWalt D55270 Guide D'utilisation page 18

fOR k PUmP UNITS
The oil level should be at "Add" on the dipstick.
fOR G PUmP UNITS
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 dipstick/oil fill plug and tighten securely.
1. Reconnect spark plug wire.
Checking Belt Tension (Fig. 1)
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 ON/OFF switch (C) is in the OFF position.
. Allow the unit to cool.
3. Disconnect spark plug wire.
4. Drain air tank.
5. fOR k PUmP UNITS
Remove six belt guard mounting screws (two on the pump head
and four on the deck)
fOR G PUmP UNITS
Remove seven belt guard mounting screws and J-hook (two on
the pump head and four on the deck).
6. Remove outer 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.
Adjusting Belt Tension
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.
. Scribe a mark at the base of the pump on the deck to be used
as a reference.
3. Loosen four pump mounting nuts.
4. fOR k PUmP UNITS ONly
Loosen but do not remove pump stiffener bracket bolt.
5. Remove the belt.
6. Scribe a mark approximately 1/8" from the original mark.
7. Slide the pump to the new mark and retighten the pump mount-
ing 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 pump 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 pump mounting nuts (Torque
to 6–8 ft.- lbs./8.1–10.8 Nm), stiffener bracket bolt (Torque to
10–1 ft.- lbs./13.5–16.3 Nm), and replace belt cover.
11. Reconnect spark plug wire.
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