95-01-01
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EFFECTIVITY:
C I R R U S
C O M P O N E N T M A I N T E N A N C E M A N U A L - C A P S
M O D E L S R 2 0
4 May 2015
h.
Inspect countersunk screws removed previously from pick-up collar for dam-
age. Replace countersunk screws as required.
i.
Apply medium threadlocker to countersunk screws removed previously from
pick-up collar.
j.
Install countersunk screws securing pick-up collar support to pick-up collar.
3
Serials 1005 thru 1267 after SB2X-95-20,
Serials 1268 thru 1422 after SB2X-95-17,
Serials 1423 & subs w/o Perspective after SB2X-95-18, 2228 & subs:
Remove sur-
face irregularities from pick-up collar.
a.
Use half-round file as required to remove bumps.
b.
Solvent clean with isopropyl alcohol. (Refer to AMM 20-30)
c.
Apply primer to affected area.
(c)
Mount rocket nozzle bulkhead to workbench, or similar flat, stable surface.
1
Acquire necessary tools, equipment, and supplies.
2
Transfer template pattern to workbench and match drill.
CAUTION:
Do not secure rocket nozzle bulkhead to workbench with nylon screws.
3
Align rocket nozzle bulkhead to workbench hole pattern.
4
Install steel screws securing rocket nozzle bulkhead to workbench. Torque to 3.0
±0.5 in-lb (33.9 ±5.6 Ncm).
(d)
CAUTION:
Inspect propellant grains for damage. Do not use if cracks, fractures or
other signs of breakage are apparent.
1
Install lubricated o-rings into two upper outer grooves of rocket nozzle bulkhead.
WARNING:
Fine powder debris could create an explosion danger. Use care
not to break propellant during insertion.
2
Slide upper propellant grain into rocket motor case.
3
Slide o-ring into rocket motor case.
4
Orient lower propellant grain so that deep, recessed end of lower propellant grain is
visible from open end of rocket motor case.
5
Slide lower propellant grain into rocket motor case.
CAUTION:
Do not damage O-rings. Insert rocket nozzle bulkhead into rocket
motor case slowly.
Description
P/N or Spec.
Supplier
Purpose
Drill Bit
0.807 inch
(2.049 cm
Any Source
Drill center hole.
Drill Bit
0.175 inch
(0.445 cm)
Any Source
Drill attach holes.
Screws (3), Steel, 10-32
Thread, Length Variable
a
a. Length must be 0.375 inch (0.953 cm) longer than workbench thickness.
-
Any Source
Secure rocket nozzle
bulkhead.