| TABLE OF CAPACITIES WITH RECOMMENDATIONS AT TEMPERATURES SHOWN | ||||
|---|---|---|---|---|
| UNIT | CAPACITY | ABOVE +32° | +32° TO +10° | BELOW +10° |
| OIL TANK | 1 GALLON | OE S.A.E. 50 | OE S.A.E. 30 | OE S.A.E. 10 |
| TRANSMISSION | ¾ pint | OE S.A.E. 50 | OE S.A.E. 30 | OE S.A.E. 10 |
RA PD 310207
Figure 10—Lubrication Guide
(4) Spark and Throttle Control Grips. These grips require disassembly. Twice a year, or whenever grips do not turn freely, indicating need of lubrication, remove grips, clean parts, apply grease, and reassemble (par. [101]).
(5) Air Cleaner. Examine oil cup daily for excessive dirt and correct oil level. Under extremely dusty or sandy conditions it may be necessary to clean and refill the air cleaner more than once daily. Refill oil cup to indicated level with engine oil. Drain, clean, and refill oil cup every 250 miles, depending upon operating conditions. Every 1,000 miles (oftener if necessary), remove air cleaner filter units, wash in dry‐cleaning solvent, lubricate, and reassemble (par. [76]). NOTE: Early type round cleaner did not have removable filter element. Complete cleaner must be removed to wash element.
(6) Wheel Bearings. When wheel hubs are lubricated at regular 500‐mile interval, 1⁄8 ounce of grease with each greasing is sufficient. This amounts to about 15 shots of the standard 1‐pound air gun, or four strokes with a 1‐pound, hand‐operated gun. If vehicle has been operated in water, wheel hubs submerged, apply hub greasing service immediately afterward (or soon as situation permits). Do not overlubricate wheel hub bearings, as excess grease may work into brake linings, reducing brake efficiency. When using air‐operated grease gun, it is easy to overlubricate wheel hub bearings.
(7) Steering Head Bearings. Every 50,000 miles, repack upper and lower bearings, or whenever there is occasion to remove rigid fork for repair or replacement (par. [98]).
(8) Tank, Engine Oil. Oil tank is located on right side of motorcycle. Empty tank holds 1 U. S. gallon. Check daily and add engine oil as necessary to refill tank within 1 inch of top. Oil level gage rod (dip stick) is located directly below tank cap. When oil level is down to “REFILL” mark on gage rod, 2 U. S. quarts may be added. Drain oil tank every 1,000 miles and refill with fresh engine oil. Drain plug located on underside of tank in forward position. In extremely dusty service, and in winter weather, change oil oftener.
(a) Winter Caution. Water is a by‐product of combustion in any internal combustion engine. In a condensed state, the water vapor formed would equal approximately the quantity of gasoline burned. Some of this water vapor escapes past the rings into the crankcase. When starting and warming up in cold weather, considerable vapor getting into crankcase condenses to water before crankcase is hot enough to exhaust the vapor, without inside condensation, through outside breather. If engine is driven enough to get crankcase thoroughly warmed up frequently, most of this water is again vaporized and blown out through outside breather. However, a moderately driven engine, making only short runs now and then, and seldom thoroughly warmed up, is likely to accumulate an increasing amount of water in oil tank. This water will, in freezing weather, become slush or ice and, if allowed to accumulate too long, may block oil lines with resulting damage to engine. Also, water mixed with oil for some time, forms a heavy sludge of considerable acid content that is very harmful to bearings and other internal engine parts. To sum it up briefly, an engine that is used only for short runs during freezing weather requires frequent oil changes along with thorough flushing of tank to remove any accumulated sludge.
(9) Transmission Filler Opening. Check oil level in transmission case every 250 miles and add engine oil as necessary to bring level up to filler opening. If motorcycle is run unusually long distances, inspect more frequently. Motorcycle must be on rear stand in straight upright position when checking oil level or filling transmission case. Use same grade of oil used in engine, summer, and winter. If gear shifting difficulty is caused by oil congealing in extremely cold weather, thin oil with small amount of kerosene or dry‐cleaning solvent. Every 1,000 miles, drain and refill transmission to level of transmission filler plug opening with specified grade of engine oil. Transmission holds ¾ pint of oil. To drain transmission case remove filler plug and lay motorcycle on right side. CAUTION: Do not leave motorcycle on side longer than two minutes.
(10) Drive Chains.