the proper lubricant to the level of the sight glass (5) and
operation conditions. Apply the lubricant as directed by
replace the filler plug.
e. Refrigeration System. The refrigerant must
(3) Open the inlet (6) and outlet shut-off valves
on the receiver tank (7) to allow the refrigerant to
be pumped down into the receiver tank before adding or
recirculate through the system.
f. Adding or Changing the Compressor
(4) Place the unit in operation and inspect the
oil level in approximately 30 minutes. Add more oil, if
Crankcase Lubricating Oil.
necessary, using the above procedure.
Pump down the compressor before
(1) To drain the oil, remove one of the bottom
Sparingly grease friction surfaces of camshaft (fig. 4-5),
capscrews and remove the filler plug (8, fig. 4-4) to
cam roller and cam, and anchor pins by direct
allow the oil to drain freely.
application of grease to camshaft supports, fittings as
(2) After the oil has drained, replace the
capscrew in the bottom of the compressor. Fill with
Figure 4-5. Axle with brake system parts removed