Specifications

RotorWay International

Exec 162F Maintenance Manual

Section 7: Oil System

The oil sump/heat exchanger is a combined sump tank and oil cooler. Oil is drawn from the sump tank into the oil pump.

From the oil pump it circulates through the oil filter, then through the engine. It then drains back into the sump tank and

flows over the heat exchanger, where it is cooled by circulating engine coolant.

A dipstick is attached to the oil filler cap as a means of easily checking the oil level. Engine oil and oil filter should be

changed every 25 hours. Refer to the engine manual for these procedures.

Reference prints: E13-2000, E30-2000, E37-2000

SERVICE NOTES:

1. CAUTION: Do not overfill the oil sump. If too much oil is added, the sump must be drained and then re-filled to the

proper level. If any oil is spilled, it must be cleaned up before flight.

2. Rubber hoses used in the oil system should normally be replaced at 500 hours, the specified number of years, or on

condition, whichever comes first. Shelf life, or time before entering service, is not included if the hoses have not been

exposed to the environment and have not been affected by aging.

3. NOTE: THE STEEL BRAIDING ON THE OIL HOSES IS EXTREMELY ABRASIVE. THE HOSES MUST BE

POSITIONED SO THAT THEY DO NOT CONTACT OR RUB ON ANYTHING ELSE.

CAUTION: Teflon lined steel braided hoses have a tendency to “set” after being exposed to heat and pressure.

Attempting to change the curvature of a hose after it has set may cause the lining to crack.

INSPECTION CHART

PART NO.

E28-7150 Oil Sump/Heat Exchanger 100 HR OC 7-1

E28-1192 Valve Cover Drain Hose 100 HR 500 HR/OC or 5 yrs 7-2

E28-1230 Main Oil Drain Hose 100 HR 500 HR/OC or 3 yrs 7-2

E28-1110 Oil Filter 25 HR 25 HR/OC

E28-6112 Hose Assembly 100 HR 2000 HR/OC 7-3

E28-6122 Hose Assembly 100 HR 2000 HR/OC 7-3

E28-6142 Hose Assembly 100 HR 2000 HR/OC 7-3

DESCRIPTION

SERVICE

REFERENCE

INSPECTION

INTERVAL

R.C.O.

Rev. 2 10/01