DE-18 USER MANUAL SECTION 7
86
REPLACEMENT OF ELEMENT
1. Unscrew filter from vent line.
2. Replace with a new filter.
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
strainer. 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 cir-
cular 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.
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.
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.-Ibs.. (163
Nm).
*Replacement Element P/N 02250118-258
Figure 7-6: Sump Breather Filter
(P/N 02250120-860)
*Repair Kit P/N 02250122-080
Figure 7-7: Blowdown Valve
(P/N 02250119-351)
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