* Oil and oil filter cartridge are first changed at the 600-1,200 mile inspection. Subsequent oil and
filter changes should be made at 7,500 mile intervals or at least every sixth month. However,
adverse conditions (like hot ambient temperatures, trailer hauling, hill climbing, driving long
distances at high speeds, extended periods of idling or low speed operation, short trip operation at
freezing temperatures) require oil changes more frequently (every third month).
pg. 45 Servicing
1978
MAINTENANCE SCHEDULE
264 265
A= Adjust (Correct if necessary)
R= Replace
I= Inspect (Correct or Replace if necessary)
L= Lubricate
Maintenance Operation
Miles
600-
1,200
7,500 15,000 22,500 30,000 37,500 45,000
(Km)
(1,000-
2,000)
(12,500) (25,000) (37,500) (50,000) (62,500) (75,000)
EMISSION CONTROL
SYSTEM
III ENGINE IGNITION
COMPONENTS
Spark Plugs R R R
Distributor Advance Mechanism I
Ignition Timing I I I I
Distributor Cap and Rotor I I I
Ignition Wiring I I I
Timing Delay Valve R
IV ENGINE CRANKCASE
VENTILATION SYSTEM
PCV Nipple (Orifice) I I I
Ventilation Hoses I I I
Oil Filter Breather Cap and Flame
Arrester
I I I
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