Chapter 6 — Service and Repair
©2006 Global VR, Inc.
040-0120-01 Rev. B 10/10/2006
Page 27 of 56
Gun Pot and Gear Service
Each gun has two pots that measure the movement of the gun on the X-axis (left and right) and
Y-axis (up and down). The X-axis pot is located under the gun base below the trigger. The Y-
axis pot is located on the side of the gun base below the flamethrower button.
Use the
Gun Test & Calibrate
screen from
System Tests
in the Operator menu to test gun
motion. To test a pot, power off the game and test resistance at the pot. When you move the
gun, you should see a steady linear increase or decrease in resistance, with no jumps. Replace
the gears if they are worn or cracked.
Refer to Figure 21 for gun base components, and perform the following steps to replace a pot or
gear shaft:
1.
Remove the six (6) Torx security screws that secure the front and rear covers over the gun base,
and remove the covers.
2.
Remove the two mounting nuts and remove the metal mounting plate from the pot to be
replaced.
3.
Use an Allen wrench to loosen the set screw from the gear shaft, and remove the gear shaft.
4.
Using a 1/2" wrench, remove the nut and lock washer that secure the pot to the frame.
5.
De-solder the wires from the pot and solder them on the same terminals on the replacement pot.
6.
Install the new 5K
Ω
pot with the same orientation. Make sure that the plastic keys on the pot
mate properly with the metal.
7.
Re-install the lock washer and nut, being careful not to over-tighten.
8.
Re-install the gear shaft and tighten the set screw.
9.
Calibrate the gun using the
Gun Test & Calibrate
screen from
System Tests
in the Operator
menu after replacing a pot.
Figure 21.
Gun Pot Replacement
Summary of Contents for Aliens Extermination
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