S P A R K PLUG. Replace a spark plug that has a cracked insulator or burned
e l e c t r o d e . Clean and adjust spark plug gap to 0.30 inch. Torque spark plug
to 25 foot-pounds. Replace a lead that is frayed or broken. Clean and
t i g h t e n lead connections.
M A G N E T O . Replace pitted or burned magneto points. Proper gap adjust-
ment is 0.015 inch. (Check adjustment every 500 hours).
F I R E E X T I N G U I S H E R . Inspect for broken seal. Inspect for full charge by
shaking for sound or weight .
S A F E T Y RELIEF V A L V E Inspect for insecure mounting and proper
operation. Maximum pressure is 185 psi.
D R A I N C O C K . Inspect for leaks. Make sure it is open before starting eng-
ine. Replace a defective draincock.
A I R R E C E I V E R Inspect for leaks and damage. Drain condensate.
C O N T R O L S A N D I N S T R U M E N T S : Inspect for damage and loose mounting.
With unit operating, check for proper operation. Normal operating read.
ings for instruments are as follows:
NOTE 1. O P E R A T I O N A L T E S T . During operation observe for any unusual
noise or vibrations.
NOTE 2. A D J U S T M E N T S . Make all necessory adjustments during