Daily Maintenance; Lubricating System; Maintenance; Maintenance, Daily - Champion A Series Operating And Service Manual

DAILY MAINTENANCE

Before and during maintenance work
be absolutely sure these rules are fol-
lowed:
A. Main electrical switch for motor
driven units is off and marked so
it cannot be accidentally turned
on.
B. Pressure in the air system is com-
pletely released.
C. Never reach hand into the crank-
case without being conscious of
the fact that the crankshaft can ro-
tate due to the position of the
counterweights.
D. Proper equipment and tools are
used.
Failure to observe these precautions
will result in injury or death.
1. Air filter -- see "Air Filter," page 5, for complete
details.
2. Check oil pressure and level. Unit must be
stopped for proper oil level check.
3. Listen to compressor valves for unusual noise, in-
dicating worn or leaking valves.
4. Observe if control is normally loading and unload-
ing unit (where used).
5. Drain condensate from air receiver, moisture
traps and drop legs if used. Local humidity condi-
tions will govern frequency condensate must be
drained.
6. Inspect for air or oil leaks.
7. Check relief valve and intercooler relief valve (two
stage units) by manual operation.
Although the compressor is designed for unattended
operation, frequent inspection may reveal some mal-
function and save serious damage.

MAINTENANCE

Compressor efficiency and life depend on the quality of
maintenance the unit receives. Maintenance must be
done regularly and with care. Clean work space, tools,
APL Comp & VAC Pump
Oil Pump End
cleaning solvents and wiping rags are necessary to
avoid transferring dirt into the unit. Clean the exterior of
the unit before starting work to prevent dirt from enter-
ing the suction manifold, valve pockets, crankcase, etc.
A maintenance chart listing the unit and scheduling reg-
ular maintenance is valuable. A good program well
executed, is less costly than major repairs and down
time.
Oil pump rotation is preset. Refer to il-
lustration to reverse operation.
LUBRICATING SYSTEM -- All APL and APO models
are equipped with a gear type oil pump driven by the
crankshaft for pressure lubrication to the crankpin
bearings. Oil pressure of 15 to 20 pounds is maintained
with unit operating at maximum rated speed and oper-
ating temperature. Cylinders, piston pins and main
bearings are spray lubricated.

RECOMMENDED LUBRICANTS --

recommended lubricant for these compressors is
ChampLubt
Lubricant of the correct viscosity should be used for ex-
isting temperature ranges. Refer to FIGURE 1, page
3.
The correct weight of oil for existing temperatures is
most important. Oil which is too heavy cannot be picked
up by the oil pump or splash freely and will cause bear-
ing damage and subsequent failure. For extreme cold
weather operation it is very important that pour point of
the oils is suitable for the existing temperatures and in
some cases, heating the oil in the crankcase prior to
starting the unit may be necessary.
C1- -1- -608 Page 4
Two pins on back side of
cover engage in recessed
area of pump as shown
CCLW Shaft Rotation
of Oil Pump with Cover
Removed
NOTE: Suction Port of Pump Shaded
FIGURE 3 - - OIL PUMP ROTATION
CLW Shaft Rotation
of Oil Pump with
Cover Removed
The