Filling Oil Sump; Oil Screen (Suction); Recommendations For Changing Oil; Oil Filter (Full Flow) - Piper PA-32R-301 SARATOGA SP Maintenance Manual

H. FILLING OIL SUMP
The oil sump should normally be filled with oil to the mark on the engine dipstick. The quantity of oil
required for the engine may be found in Chapter 6. The specified grade of oil may be found in Chart 1201,
the Lubrication Chart, or on the right cowl panel or each engine oil filter access door. To service the engine
with oil, open the quick release access door on top of the cowl and remove the oil filler cap with dipstick.
I. OIL SCREEN (SUCTION)
The oil suction screen, located on the bottom aft end of the engine sump is installed horizontally. To
remove, cut the safety wire and remove the hex head plug. The screen should be cleaned at each oil change
to remove any accumulation of sludge and to examine for metal filings or chips. If metal particles are
found in the screen , the engine should be examined for internal damage. After cleaning and inspection,
place the screen inside the recess in the hex head plug, to eliminate possible damage to the screen. Insert
the screen into the housing and when certain that the screen is properly seated, tighten and safety the plug
with MS-20995-C41 safety wire.
J. RECOMMENDATIONS FOR CHANGING OIL
Refer to the latest revision of Lycoming Service Instruction
No. 1014 and Lycoming Service Letter No. L185.
(1) In engines that have been operating on straight mineral oil for several hundred hours, a change to
additive oil should be made with a degree of caution, since the cleaning action of some additive
oils will tend to loosen sludge deposits and cause plugged oil passages. When an engine has been
operating on straight mineral oil and is known to be in excessive dirty condition, the switch to
additive or compounded oil should be deferred until after the engine is overhauled.
(2) When changing from straight mineral oil to compounded oil, the following precautionary steps
should be taken:
(a) Do not add additive oil to straight mineral oil. Drain the straight mineral oil from the engine
and fill with additive oil.
(b) Do not operate the engine longer than five hours before the first oil change.
(c) Check all oil screens for evidence of sludge or plugging and change oil every ten hours if
sludge conditions are evident. Resume normal oil drain periods after sludge conditions
improve.
K. OIL FILTER (FULL FLOW)
(1) The oil filter should be replaced after each 50 hours of engine operation; this is accomplished by
removing the lockwire from the bolt head at the end of the filter housing, loosening the bolt, and
removing the filter assembly from the adapter.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
— NOTE —
1F10
12-10-00
Page 12-7
Reissued: July 1, 1993