DeWalt DXCMTB5590856 Instruction Manual page 18

NOTE: All compressed air systems generate condensate that
accumulates in any drain point (e.g., tanks, filter, aftercoolers,
dryers). This condensate contains lubricating oil and/or
substances which may be regulated and must be disposed of in
accordance with local, state, and federal laws and regulations.
1. Ensure engine ON/OFF switch (C) is in the OFF position.
2. Place a suitable container under the drain valve to catch
discharge.
3. Grasp black lever on drain valve.
WARNING: Risk of bursting. Drain air tank daily. Water will con-
dense in air tank. If not drained, water will corrode and weaken
the air tank causing a risk of air tank rupture.
NOTICE: Risk of property damage. Drain water from air tank may
contain oil and rust, which can cause stains.
4. Slowly rotate lever to gradually bleed air from air tank.
5. When air tank pressure gauge reads 10 psi, rotate valve to the
fully open position.
6. Close drain valve when finished.
Compressor Pump Oil
WARNING: Hot surfaces. Risk of burn. Tubes, 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.
NOTICE: Risk of property damage. Use air compressor oil only.
Multi-weight automotive engine oils like 10W30 should not be used
in air compressors. They leave carbon deposits on critical compo-
nents, thus reducing performance and compressor life.
NOTE: Use synthetic blend non-detergent air compressor oil.
NOTE: Crankcase oil capacity is approximately 16 fluid ounces
(473 ml).
(refer to Fig. 4)
Checking
1. Ensure engine START/RUN/OFF switch (C) is in the OFF
Position.
2. The oil level should be to the middle of the sight glass (V).
3. If needed remove oil fill plug (K) and slowly add oil until it
reaches the middle of the sight glass.
Changing
WARNING: Hot surfaces. Risk of burn. Tubes, 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.
WARNING: Drain tank to release air pressure before removing
the oil fill cap or oil drain plug.
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 the oil fill plug (K).
6. Remove the oil drain plug (L) and drain oil into a suitable con-
tainer.
7. Replace the oil drain plug (L) and tighten securely
8. Slowly add compressor oil until it reaches the middle of the
sight glass (V). NOTE: When filling the crankcase, the oil flows
very slowly into the pump. If the oil is added too quickly, it will
overflow and appear to be full.
CAUTION: Overfilling with oil will cause premature compressor
failure. Do not overfill.
9. Replace oil fill plug (K) and tighten securely.
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