Chapter 15, -PUMPS AND FORCED DRAFT BLOWERS 



5. Never tie down the speed-limiting gov- 

 ernor. Be sure it is in good operating con- 

 dition at all times. Be sure it is properly 

 set. 



6. Observe all safety precautions required 

 in connection with the operation of the driving 

 turbine. 



Casualty Control 



If a forced draft blower fails, take the fol- 

 lowing action: 



1. If one blower fails when two blowers are 

 in use, speed up the other blower. 



2. K only one blower is in use, secure the 

 burners immediately to prevent a flareback. 



3. Start the standby blower and notify the 

 engineroom of the casualty because of a possi- 

 ble need for a reduction in speed. 



4. Determine the cause of the failure and 

 remedy the trouble as soon as possible. 



The rupture of a forced draft blower lube oil 

 line is a casualty in itself, as well as one which 

 can lead to blower failure. The rupture of a 

 lube oil line is discussed here separately be- 

 cause of the special hazard of fire that is in- 

 volved. If a forced draft blower lube oil line is 

 ruptured, take the following action immediately. 



1. If two blowers are in use, secure the af- 

 fected blower and speed up the other. If only 

 one blower is in use, secure the burners im- 

 mediately to prevent a flareback. Secure the 

 affected blower and light off the standby blower. 



2. Notify the engineroom because of a pos- 

 sible need for a reduction in speed. 



3. Get firefighting equipment to the scene. 



4. Wipe up all oil that has spilled out. Flush 

 out and wipe out the bilges as necessary. 



5. Repair or renew the ruptured section as 

 soon as possible. 



6. Refill the reservoir with clean oil. Test 

 the new section; if it is satisfactory, the blower 

 can be returned to service. 



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