Compressor Crankshaft and Frame Components

Question 1

settling of a foundation of reciprocating compressor would most likely show up as damage to __________________

Answer 1

Main bearings

Question 2

T or F

you use a wire alignment on main bearings in order to check for roundness

Answer 2

False

Question 3

T or F

you should paint the inside surface of a compressor frame in order to reduce rusting

Answer 3

True

Question 4

T or F

you can use wire alignment to find stress cracks in the frame

Answer 4

False

Question 5

what tool do you use to check the crankshaft for misalignment

Answer 5

Deflection gauge

Question 6

T or F

Twice the throw on a crankshaft is equal to the stroke of a piston

Answer 6

True

Question 7

T or F

A common method of straightening a bent crankshaft is to tap it lightly with a small ball peen hammer

Answer 7

True

Question 8

List four signs of failure, a compressor bearing in service may show

Answer 8

-Lubricating oil pressure decrease
-Excessive heat
-Excessive vibration
-Excessive amperage from the electric motor