
HQ-006 Quarter-turn Electric Actuator 
Installation Operation& Maintenance Manual 
Doc No. : HumA-HQ006-21 Rev1  Page 2 / 22  Valve Automation Leader, HKC 
 
Contents 
 
1. Introduction ................................................................................................................. 3 
1.1. Purpose ............................................................................................................................................... 3 
1.2. Safety Notices .................................................................................................................................... 3 
2. Product Identification ................................................................................................. 3 
2.1. Product Identification ...................................................................................................................... 3 
2.2. Initial Inspection ............................................................................................................................... 3 
2.3. Storage ................................................................................................................................................ 4 
3. General Information and Features ............................................................................ 4 
3.1. General Information ......................................................................................................................... 4 
3.2. External Parts for Standard Models .............................................................................................. 5 
3.3. Internal Parts for Standard Models............................................................................................... 5 
4. Installation ................................................................................................................... 6 
4.1. Pre-installation .................................................................................................................................. 6 
4.2. Actuator Mounting ........................................................................................................................... 6 
4.3. Limit Switch Setting ......................................................................................................................... 7 
4.4. Setting Potentiometer (Replacement and Setting) .................................................................... 8 
4.5. Current Position Transmitter – CPT (Optional) ........................................................................... 8 
4.6. Proportional Control Unit ............................................................................................................. 10 
4.7. AC/DC Multi-Board ......................................................................................................................... 16 
5. Operation ................................................................................................................... 16 
5.1. Electrical Connections and Preliminary Test.............................................................................. 16 
5.2. Wiring Diagrams for Standard Models ...................................................................................... 18 
5.2.1. HQ-006 On/Off type ......................................................................................................... 18 
5.2.2. HQ-006 PCU type .............................................................................................................. 18 
6. Maintenance .............................................................................................................. 19 
6.1. Maintenance .................................................................................................................................... 19 
6.2. Tools .................................................................................................................................................. 19 
7. Trouble Shooting ....................................................................................................... 19 
7.1. The actuator does not respond ................................................................................................... 20 
7.2. The actuator is supplied with power but does not operate .................................................. 20 
7.3. Actuator runs erratically ................................................................................................................ 20 
7.4. Optional Equipment(s) ................................................................................................................... 20 
8. Dimensions ................................................................................................................ 21