Setting the Preload

 
Finger tighten the preload collar against the front ballnut.
 
Finger tight and snug against the front ballnut.
 
Using a spanner wrench continue to adjust the preload to the desired range. (see Table Below)

I personally use an hex wrench.
 
Tighten the locking set screws.
 

Preload Settings

Diameter

Recommended

Maximum

Preload (lbs.)

# of Turns

Preload (lbs.)

# of Turns

3/8”

13

.1

39

.25

5/8”

73

.75

219

1.5

3/4"

95

.2

285

.5

1”

150

.33

450

.5