Discovery Selectorized Line Owner's Manual: Maintenance
36
Inspect and Lubricate Pop Pins
Remove the pop pin assembly by loosening the cap.
CAUTION: Pulling out the pop pin may cause the unit to adjust position
suddenly. To avoid injury, keep your hands and head away from moving
parts.
Inspect the plunger and spring for excessive wear and damage, and replace as
required.
Apply a small amount of silicone spray lubricant to the spring and plunger, and
then reinstall the entire assembly. Tighten the cap. Wipe off any excess
lubricant with a cloth.
Figure 8: Inspect pop pins (pop pin shown in exploded view for clarity)
Lubricate Linear Ball Bearings
Some of the strength equipment contains linear ball bearings.
Lubricate the linear ball bearings with an NLGI grade 2 grease by applying a
thin coat of grease on the shaft below the bearings. Move the bearings and
repeat application on opposite side.