DeWalt D55170 Guide D'utilisation page 22

4. Replace dipstick/oil fill plug and tighten securely.
CHANGING OIL
NOTE: Pump oil contains substances that are regulated and must
be disposed of in accordance with local, state and federal laws and
regulations.
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 On/Off switch is in the OFF position.
2. Allow the unit to cool.
3. Remove air compressor plug from outlet.
4. Drain air tank.
5. Locate a suitable container under pump drain plug (J).
6. Remove the dipstick/oil fill plug (K) from crank case.
7. Remove the oil drain plug (L).
8. Allow ample time for all oil to drain out. (Tilting the compressor
towards the drain plug will assist in draining.)
9. Install the oil drain plug.
10. Fill pump with D WALT synthetic compressor oil.
E
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.
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 On/Off switch is in the OFF position.
2. Allow the unit to cool.
3. Remove air compressor plug from outlet.
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.
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.
2. 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. Remove the belt.
5. Scribe a mark approximately 1/8" (3.2 mm) from the original
mark.
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