Piper SEMINOLE PA-44-180, Maintenance Manual

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— Note —
Add one six ounce can of LW-16702 to the engine oil every 50 hours or at each oil
change in accordance with the latest revision of Lycoming Service Bulletin No. 446.
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.
2. Before discarding the throw away filter, remove the element for inspection by using Champion cutter tool
CT-470. Available from Champion Spark Plug Co., Toledo, Ohio 43601. It will cut open any spin-on type oil
filter for inspection. Examine the material trapped in the filter for evidence of internal engine damage such as
chips or particles from bearings. In new or newly overhauled engines, some small particles of metallic shavings
might be found; these are generally of no consequence and should not be confused with particles produced by
impacting, abrasion or pressure. Evidence of internal engine damage found in the oil filter justifies further
examination to determine the cause.
3. After the filter has been replaced, tighten the attaching bolt within 15 to 18 foot-pounds of torque.
Lockwire the bolt through the loops on the side of the housing to the drilled head of the thermostatic valve. Be
sure the lockwire is replaced at both the attaching bolt head and the thermostatic oil cooler bypass valve.
SCHEDULED SERVICING.
LANDING GEAR.
SERVICING OLEO STRUTS.
— CAUTION —
DO NOT EXCEED THESE TUBE EXPOSURES.
The air-oil type oleo strut should be maintained at proper strut piston tube exposures for best oleo action. The
nose gear strut must have approximately 2.70 +/- .25 inches of piston tube exposed, while the main gear strut
requires approximately 2.60 +/- .25 inches of tube exposure.
— Note —
Normal Static load is the empty weight of the airplane plus full fuel and oil.
These measurements are taken with the airplane sitting on a level surface under normal static load.
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
1 2 - 2 1 - 0 1
Page 12-04
Revised: May 15, 1989
1D4
PIPER AIRCRAFT