E-TON Beamer Scooter, Owner'S Manual

Page 8 

Purging Brake Lines 

For the hydraulic brake system to operate safely, the 
brake system must be purged of air in the lines and 
reservoir.  
 
To bleed the air will require two people to perform the 
following procedure. 
 

 
1.  Place a drain pan under the brake caliper to catch 

the fluid. 

2.  Open the bleeder valve ½ turn counter 

clockwise. 

3.  Squeeze the brake lever to expel air from the 

system.  

4.  While holding the brake lever, close the 

bleeder valve. 

5.  Repeat steps 2 through 4 until the brake fluid 

coming from the bleeder valve is a solid 
stream without any air, then close the valve 
and replace rubber protection cap. 

6.  Test the brake system by squeezing the lever. 

The lever should feel firm and stop without 
fading. 

Rear Brake System Inspection 

 
Check the brakes for smooth operation. The 
brake cable should move freely and apply the 
brakes with minimal effort. If the cable sticks, 
hangs up, or requires a larger amount of effort to 
apply the brakes the cable may be damaged or 
need lubricating. 
 
Visually inspect the brake cable for any signs of 
wear, fraying, kinking or corrosion. Replace any 
worn, frayed, corroded or kinked cable. Lubricate 

the brake cable with a commercial cable 
lubricant available through your dealer. 
 
Test the rear brake by applying pressure to 
the brake lever. Try pushing the vehicle with 
the brakes applied. If the rear wheel turns the 
brakes may need to be adjusted or replaced. 

 
To adjust the rear brake, turn the adjusting 
nut located on the brake arm on the rear 
wheel. Adjust the nut so that the brake arm 
engages when ever the rear brake lever is 
squeezed. CAUTION: do not over tighten the 
nut to the point that the brake shoes are in 
constant contact with the brake drum.  
 
Replace the brake cable and/or shoes when 
there is insufficient adjustment left to apply 
the brake completely. 
 
Rear brake drum tolerances are: 
 

Inner diameter of drum 

Standard: 110mm / 4.330696” 
Minimum: 110.5mm / 4.350381” 

Brake Shoe Lining 

Standard: 4.0mm / 0.1574798” 
Minimum: 2.0mm / 0.07873992”