Sullair DE-18, Operator'S Manual And Parts List

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2. Replace with a new filter.
7.9.6 OIL SUMP STRAINER MAINTENANCE
The suction line of the oil pump is fItted with a 100
mesh, stainless steel strainer to protect its internals
from foreign matter. To service the cleanable strain-
er, proceed as follows:
1. With the power turned off, remove sump-to-oil
pump hose and disconnect oil bypass hose.
2. Loosen/remove bolts/washers securing circular
cover plate to sump tank.
3. Remove cover plate and gasket away from sump
tank- some 1/4” control tubing may have to be
removed to provide clearance.
4. Inspect, clean, and/or replace strainer.
5. Reassemble in reverse order.
7.9.7 BLOWDOWN VALVE MAINTENANCE
Refer to Figure 7-7 . The blowdown valve (P/N
02250119-351) vents air to atmosphere in unload
mode. To maintenance the blowdown valve, follow
these directions:
1. Loosen/remove bolts/washers and nuts securing
cover to valve body.
2. Remove cover.
3. Remove diaphragm.
4. Replace diaphragm with new diaphragm.
7.9.8 DRIVE COUPLING MAINTENANCE
Refer to Figure 7-8 . The compressor unit and motor
are rigidly connected via a rigid adapter piece. Thus
the shafts are maintained in proper alignment at
assembly. Verify that the bolts connecting the
adapter to the engine are torqued to 120 ft.-lbs.
(163 Nm).
Section 7
MAINTENANCE
36
Figure 7-7 Blowdown Valve (P/N 02250119-351)
*Repair Kit P/N 02250122-080
Figure 7-8 Drive Coupling