Maintenance 
 
HON 380 gas pressure regulator with HON 673/674 controller    44 
 
Figure  Step  Description 
2  Unscrew the screws (1) and remove 
the locking washers (2) to separate 
the regulator unit from the body. 
3  Remove the regulator unit from the 
body. 
 
Depending on what you want to do next, proceed as indicated in the relevant sec-
tion: 
  Performing maintenance on regulator unit (see page 47)