Erratic accelerated speed.
        
        
    
 
    
    
    
  
  
    To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.
   
 
    
    
    
        
            
    
    
    
    
    
    - Refill the hopper and the prime pump.
 
 
         
     
 
    
    
        
            
    
    
    
    
    
    - Clear piston valve. 
- Service the piston ball check.
- Replace packings.
 
         
     
 
    
    
        
            
    
    
    
    
    
    - Clear or service intake valve.