Copyright PSC
2000781K MkII MLB Operating Procedure
Page 52 of 68
10.4 Deploy
Step
Procedure
Date & Initials
Tech.
QA
10.4.1
The Upper Ring shall be constrained during Deployment. If Separating
(allowing the Separation Springs to fully extend) skip to step 10.4.2. If
Separating is not required, a force shall be applied to restrain the Upper Ring.
Apply a compressive force on the Upper Ring per the calculations below.
Separation Spring quantity = ________
Minimum Compressive Force = ____Springs x 20 lb = _____ lb
Maximum Compressive Force = ____Springs x 30 lb = _____ lb
Offload any object heavier than the maximum compression force.
Once this step is complete, skip to step 10.4.3.
10.4.2
If separating (allowing the Separation Springs to fully extend) it is required to
constrain the Upper Ring after the Separation Springs reach end of stroke.
2000843 Deploy Upper Ring Stops
or similar shall be used. See Section 14. If
using Deploy Upper Ring Stops, follow PSC procedure
3000272
for installation
instructions.
Another option is to allow the Lower Ring to drop onto soft high-damping foam
(ensure re-contact with Upper Ring is not possible). The foam shall be covered
to prevent contaminating the Lightband. To prevent Lightband damage, drop
distance and energy damping shall be considered.
