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
95-01-01
Page 33
All
EFFECTIVITY:
6
Carefully twist rocket motor case right and left while pushing down to engage rocket
motor case onto rocket nozzle bulkhead and o-rings.
7
Align hole in bottom groove of rocket nozzle bulkhead with Ortman key slot in rocket
motor case.
8
At lower side of rocket motor case, insert pointed tip of Ortman key into right side of
slot.
Note:
To improve strap grip on rocket motor case, position rubber traction
mat between rocket motor case and strap.
9
Using large strap wrench at top of rocket motor case, slightly rotate rocket motor case
clockwise while observing exposed tip of Ortman key. As tip of key retracts into rocket
motor case, continue to rotate rocket motor case until key is completely retracted.
CAUTION:
Do not over rotate Ortman key into slot. Verify end of key remains vis-
ible in slot and is below flush with rocket motor case.
Serials 1005 thru 1267 after SB2X-95-20, 1268 thru 1422 after SB2X-
95-17, 1423 & subs w/o Perspective after SB2X-95-18, 2228 & subs:
When assembled, verify Ortman key hole in bulkhead is in line with
alignment mark in motor case.
10
Serials 1005 thru 1267 after SB2X-95-20, 1268 thru 1422 after SB2X-95-17, 1423 &
subs w/o Perspective after SB2X-95-18, 2228 & subs:
Verify frangible link hole on
rocket motor case aligns with longer anchor block on launch tube.
a.
Remove and retain steel screws securing rocket nozzle bulkhead to work-
bench.
b.
Position bottom of rocket motor (nozzle end) to launch tube.
c.
Carefully insert rocket motor into launch tube.
d.
Temporarily install nylon screws securing rocket base to rocket motor. Install
to finger tight only.
CAUTION:
Do not cross thread or over-tighten nylon screws.
Note:
Do not apply plastic fastener threadlocker to nylon screws.
e.
Perform Inspection/Check - Rocket Motor Case Alignment.
f.
Remove and retain nylon screws securing rocket base to rocket motor.
g.
Remove rocket motor from launch tube.
11
At circumference of Ortman key slot, apply silicone sealant to Ortman key slot
ensuring slot is sealed and free of air bubbles.
12
Remove and discard steel screws securing rocket nozzle bulkhead to workbench.
4 May 2015