Checking Oil; Changing Oil - DeWalt D55151 Instruction Manual

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 On/Off switch is in the OFF position.
. Move compressor into an inclined position so drain valve (H) is
at the lowest point (this will assist in removing moisture, dirt, etc.
from air tanks)
. Place a suitable container under the drain valve to catch
discharge.
4. Grasp knurled knob on drain valve.
5. Slowly rotate knob to gradually bleed air from air tank.
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.
CAUTION: Risk of property damage. Drain water from air tank may
contain oil and rust, which can cause stains.
6. When air tank pressure gauge reads 10 PSI (68,9 kPa), rotate
valve to the fully open position.
7. Close drain valve when finished.
Compressor Pump oil (Fig. 1)

CHECkInG oIl

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.
. Place unit on a flat level surface.
. Remove dipstick (K) and wipe clean.
4. Reinsert dipstick fully into oil fill port for a few
seconds to allow oil to collect on the dipstick.
5. Remove oil dipstick to read oil level. Oil should
not exceed top raised line on dipstick. If oil is
below lower mark, add D
and follow Steps 4 - 6.
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: Risk of unsafe operation. Overfilling with
oil will cause premature compressor failure. Do not
overfill.
6. Replace dipstick.

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.
. Allow the unit to cool.
. Remove air compressor plug from outlet.
4. Drain air tank.
5. Locate a suitable container under pump drain plug (L).
6. Remove the dipstick (K) from crankcase.
16
K
WALT synthetic oil
e
MAX
MIN
L