Lightband Mechanical Attachment Procedure - PSC 2000781J MkII MLB Operating Procedure

7. Lightband Mechanical Attachment Procedure

Step
Ensure the SN on the Upper Ring corresponds to the SN on the Lower
7.1.1
Ring.
Record all Lightband info on the cover page.
(This can be found on both the Upper and Lower Rings, typically adjacent
to the Motor Bracket Assembly.)
The Lightband is designed to accommodate 0.25 inch socket head cap
7.1.2
(SHC) screws and small pattern washers (< 0.50 inch OD). Have ready
the required tools and hardware necessary to attach the Lightband to
both upper and lower adjoining structures. See Section 15 for helpful
equipment.
Verify the mating surfaces of both adjoining structures are flat per PSC
7.1.3
Document 2000785 MkII MLB User Manual.
Clean the mating surfaces of both adjoining structures and the Lightband
7.1.4
interface surfaces with isopropanol and lint free wipes.
Lower Ring attachment to adjoining structure for all Lightbands except
7.1.5
the MLB 15.000-24.
Place the Lower Ring on the adjoining structure. Insert fasteners and
washers through mounting holes. It is often easier to place the washer on
the Lower Ring prior to inserting the screw. Tighten fasteners until hand
tight. See Figure 7-2 & Figure 7-4. Then skip to step 7.1.7.
For MLB31 & MLB38 see Note 1 at the end of this section.
Lower Ring attachment to adjoining structure for the MLB 15.000-24 only.
7.1.6
(If using reduced head fasteners per Section 15 follow step 7.1.5 instead.)
The spacing between Leaves is tight and requires a unique attachment
procedure.
1) Elevate the Lower Ring off the table to allow all screws to hang out
the bottom.
2) Place the washer on the Lower Ring prior to inserting the screw.
3) If the screw head rubs, push on each adjacent Leaf Pin to move it out
of the way slightly.
4) If the adjoining structure has through holes place the Lower Ring on
the structure allowing all screws to drop in the holes.
5) If the adjoining structure has threaded holes, the screws must be
inserted gradually. Work around the Lightband, turning each screw a
few turns at a time until hand tight. Take care to prevent the screw
heads from jamming up into the Leaf Pins.
See Figure 7-1 to Figure 7-4.
PSC Proprietary
Procedure
2000781J MkII MLB Operating Procedure
Date & Initials
Tech. QA
-----N/A-----
Page 15 of 50