SeaPerch Remotely Operated Vehicle, Construction Manual, Page: 61 / 110

OPTIONAL PROCEDURE 2.6A
– FILM CANISTERS & ALTERNATE MOTOR 1
SeaPerch ROV Construction Manual
– Version 2010-04NW
2.6-4
Figure 2.6-6:
Motor Shaft Tip
Supported for
Initial Wax Pour
Figure 2.6-8:
Settling Motor into
Melted Wax at
Bottom of Housing
Figure 2.6-9:
Wax Moved Part
Way Up Around
Motor
Figure 2.6-5:
Motor Shaft Tip
Inserted into Hole
in Housing
Figure 2.6-7:
Pouring Initial
¼” of Melted
Wax into Housing
Figure 2.6-11: Wax
Filled to ½” from the Top
of the Thruster Housing
Figure 2.6-10: Placing
Petroleum Jelly on Rear
Tips of Motor Shafts
10. Repeat Steps 5 through 8 for the other two motors.
11. Let the wax cool and harden for several minutes. One end of each motor is
now sealed in the wax, so be careful not to push on the motor shafts and break
the seals. Once all three of your housings have a motor in them, and have
cooled, you will fill them the rest of the way with wax,
in two steps .
12.
Place a dab of petroleum jelly on the rear tip of each motor’s shaft, as shown in
Figure 2.6.10. Do this for all three motors now, as the step is easy to
accidentally skip later.
13. Again carefully lifting the
hot container of wax, fill
one thruster housing with
wax up to about ½” (13
mm) below the top, as
shown in Figure 2.6-11.
Pour the wax so that it fills
in all the air spaces
around the motor. Lift
your container and look
at it from the side to see
if you have any air
bubbles. Quickly try to
get any bubbles out while the wax is still liquid by gently tilting and squeezing
the housing if needed.
14. Return the housing to the potting holder to allow the wax to solidify, and repeat
Step 13 for the other two motors.
Procedure 2.6 – Continued