11. Q. How do you adjust grease cups as applied to rods?
A. Screw down plug until you feel a slight resistance from the grease, stop when grease shows between brass and pin; this should be sufficient over the division.
12. Q. Is it usual for pins to run warm when using grease?
A. Yes; grease does not work properly until it gets warm enough to flow readily over the bearing.
13. Q. What effect does too much pressure produce?
A. Wastes grease and increases the friction until the surplus amount is worked out so the bearing runs free on its journal.
14. Q. Is it necessary to use oil with grease on crank pins?
A. No.
15. Q. When an engine is equipped with Elvin driving box lubricator, how can you tell whether a sufficient amount of lubricant is in the grease receptacle?
A. The indicator wire fastened to the bottom of the grease cellar indicates the amount of grease left in the cellar.