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Contents
About the HQ Infinity
.........................................................................................................................5
About this Manual
...................................................................................................................................... 5
About HQ Support
...................................................................................................................................... 5
Service Manual Guidelines
......................................................................................................................... 6
Electrostatic Discharge (ESD)
...................................................................................................................... 6
1. General Specifications
....................................................................................................................7
2. HQ Lubrication Specifications
.........................................................................................................8
HQ Lube Kit
................................................................................................................................................. 8
HQ Lubricant Part Numbers
....................................................................................................................... 8
HQ Lubricating and Maintenance Schedule
............................................................................................... 9
Where to Lubricate
..................................................................................................................................... 9
3. Thread Mast, Hand Wheel, and Thread Guides
............................................................................. 12
Check Thread Mast
................................................................................................................................... 12
Check Hand Wheel Gap
............................................................................................................................ 13
Check Thread Guides and Stirrup
.............................................................................................................
14
4. Top Thread Tension
....................................................................................................................... 14
Take-up Spring Position
............................................................................................................................ 16
Take-up Spring Tension
............................................................................................................................. 16
Components of the Tension Assembly
..................................................................................................... 20
5. Thread Cutter
............................................................................................................................... 22
Thread Cutter Alerts
................................................................................................................................. 22
Components of the Thread Cutter
........................................................................................................... 29
6. Securing Flats and Screws
............................................................................................................. 30
First Screw, First Position
.......................................................................................................................... 30
Main Shaft
................................................................................................................................................ 30
Pitman Short Shaft
................................................................................................................................... 31
Hook Shaft
................................................................................................................................................ 32
Take-up Lever
........................................................................................................................................... 33
Rear Axle Assembly
.................................................................................................................................. 33
Motor Shaft
..............................................................................................................................................
34
Reciprocating Counterweight
...................................................................................................................
34
7. Axial Play
...................................................................................................................................... 34
Hook Shaft
................................................................................................................................................
34
Main Shaft
................................................................................................................................................ 35
Short Shaft
................................................................................................................................................ 30
8. Leveling the Machine
.................................................................................................................... 39