DeWalt DXCMH1393075 Instruction Manual page 20

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 53 fluid ounces
(1567 ml).
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 (S).
3. If needed remove oil fill plug (I) 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.
(refer to Fig. 4, pg. 20)
4. Drain air tank.
5. Remove the oil fill plug (I).
6. Remove the oil drain plug (J) and drain oil into a suitable con-
tainer.
7. Replace the oil drain plug (J) and tighten securely
8. Slowly add compressor oil until it reaches the middle of the
sight glass (S). 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 (I) and tighten securely.
10. Reconnect spark plug wire.
NOTE: Pump oil contains substances that are regulated and must
be disposed of in accordance with local, state and federal laws and
regulations.
T = Full
U = Add
J = Oil drain plug
S = Oil level sight glass
I = Oil fill plug
20
I
S
J
Fig. 4