Section IX. ENGINE LUBRICATION SYSTEM

TM 5-4110-217-14

sensitivity, shift the adjusting clip toward the governor

shaft. To decrease sensitivity, shift the adjusting clip

toward the linkage end of the governor arm.

(b) Too sensitive a setting will result in a

surging speed (hunting) condition (alternate in-crease

and decrease in engine speed). An opposite setting will

result in too much speed variation between no-load and

full-load conditions. Thus the correct position of the clip

will result in the most stable speed regulation without

causing a surge condition.

after a sensitivity adjustment. Increasing sensitivity will

cause a slight decrease in speed and will require a slight

increase in the governor spring tension.

(6) Throttle Stop Screw Adjustment (fig.

Figure 3-14. Throttle Screw Adjustment (Model RMP-

3-14).

Set the throttle stop screw at 1/32-inch from

J/1-10G)

the manifold when the engine is operating with no load

connected.

(5) Sensitivity adjustment.

(a) Governor sensitivity depends upon the

position of the arm end of the governor spring. A sliding

clip provides for adjustment. To increase

Section IX. ENGINE LUBRICATION SYSTEM

becomes pressurized as evidenced by oil leaks at the

3-31.

General.

seals, refer to Direct Support Unit.

The engine has pressure lubrication to all working

parts. The oil system includes the oil intake cup, gear

type oil pump, oil pressure gage, oil filter, and oil

passages to deliver oil throughout the engine. An oil

pressure gage(27, fig. 3-11) is mounted on the engine

blower housing. Normal oil pressure should be 30 psi or

higher when the engine is at operating temperature. If

pressure drops below 30 psi at governed speed, refer to

Direct Support Unit.

3-32.

Oil Filler and Oil Level Indicator.

The oil fill tube is capped with a cap and oil level

indicator dip-stock. Refer to figure 3-15 for correct oil

level indication. Always replace cap tightly to prevent dirt

from entering the crankcase.

3-33.

Crankcase Breather Tube.

The engine uses a crackcase breather valve for

maintaining crankcase vacuum.

Maintenance is

generally not required. However, if the crankcase

Figure 3-15. Cap and Oil Level Indicator (Model RMP-

J/1-10G)

3-21