Helion conquest 10MT XB, Owner'S Manual

19

•  Never fold the end of the antenna over the tube, this will reduce the 

range and damage the antenna.

•  Ensure the antenna is not being pinched by the set screw that holds the 

antenna tube in place.

Gears

Periodically remove the gear cover to clearly inspect the gears and ensure 

there is no debris in the gear compartment.
Proper gear mesh setting is crucial for proper operation and life of gears in 

your product. It is important to have the pinion gear (attached to motor) as 

close to the spur gear (attached to drive shaft) as possible yet while providing 

a minimal amount of backlash. Backlash is the rotation one gear has to make 

before contacting the other. Having the gear mesh set too tight will cause 

excess load on the electrical components and may cause premature failure. 

Having gear mesh set too loose will cause excess wear and possible skipping 

of teeth during operation thus causing excess wear and premature failure.
Checking the gear mesh and setting proper backlash. 
1.  Remove the spur gear cover.
2.  Check how much movement is allowed (backlash) of the spur gear 

before the pinion gear moves (this is mostly feel, not visual). Check this 

movement in multiple places by rotating the spur gear approximately 1/6 

rotation and rechecking.

3.  If the spur gear is allowed to move more than a very small amount, or if it 

there is no backlash, the gear mesh must be adjusted. If there is a lot of 

movement, it is recommended to attempt to tighten the mesh. Attempted 

adjustment should only improve the situation; if the mesh was correct to 

begin with, you will know what that feels like, and if it wasn’t correct, it 

will be when you are done after following these procedures.

Setting the Gear Mesh

1.  Loosen the clamping screw securing the motor plate’s rotation in the 

motor mount, only enough to allow the motor to rotate in the mount. 

Check and ensure there is no debris in the gears affecting the mesh.

2.  Rotate the top of the motor away from the center of the chassis, insert a 

strip of notebook paper between the pinion and spur gear, then rotate the 

motor plate back until there is no backlash. You will have to push/twist 

relatively hard to ensure the paper is pressed all the way into the teeth.

3.  Hold the motor snugly in position while retightening the screw. Only 

tighten the screw until the motor won’t move. There should be a slight 

gap between the coils of the spring.

4.  Rotate the spur gear (turn the tires) to feed the paper out of the mesh, 

re-check the gear mesh and adjust again if necessary.

5.  Re-install the spur gear cover when the mesh is properly set.