ENVO D50 - How to Change Disc Pads; How to Change Brake Fluid

ENVO D50 | ST50 EBIKE MANUAL | VERSION 1.0 41
The hydraulic disc brakes use mineral oil based braking oil. You
can use mineral oil by other brands but make sure the oil used
is rated for use in bike braking:
• Connect the syringes to plastic tubes and connect the
adaptors to the other end of plastic tubes
• Remove the bleed screw on caliper Figure C
• Connect on of the syringe with adaptor to the bleed hole on
caliper
• Remove bleed screw Figure D
• Use the syringe connected to caliper to draw out the used
brake uid, keep it in a container
• Draw fresh brake uid into the syringe, make sure that there
is no air bubble in the brake uid then connect the adaptor
to caliper
6.5. CHANGING DISC PADS
6.6. CHANGING BRAKE FLUID
• Remove bolts securing calipers
• Remove pad retainer bolt
• Remove the disc pad pin
• Remove used disc pads and use at screwdriver to push
caliper pistons fully back
• Place new disc pads with disc pad spring in position,
insert disc pad pin through the hose on caliper. Bend the
open end of pin to keep the pin from moving out
Figure 6B
• Spin the wheel and make sure it is clear between the
rotor and disc pads Figure 6B
Figure 6A
Figure 6C
Figure 6B
Figure 6D