Brake System Argo Service Manual
BR-20
Ontario Drive & Gear Limited www.odg.com
PH.(519)- 662-2840 FAX (519)- 662-2421
1.
Remove the rubber plug from the bleed screw at the brake caliper.
2.
With the bleed screw still tight, purge any air from the system by pumping the steer-
ing handles slowly. When there are no longer visible signs of air bubbles observed
in the master cylinder, replenish it with more fluid to bring it back up to the top of
the window.
.
Catch any purged fluid at the caliper bleed screw with a rag or small container of some
sort.
3.
Next, apply steady pressure to the steering lever until the brake is fully engaged.
Hold the steering lever in this position and slowly loosen the caliper bleeding screw
1/4 turn. Open the bleed screw only enough to slowly release fluid out of the screw.
If there is any air still present in the system, it will be noticeable through this screw
with a slight “spitting” of fluid. Re-tighten the screw and once again pump the
brake system slowly a few more times. Apply pressure to the steering lever again
and hold. Open the bleed screw gradually until fluid slowly releases. Repeat this
procedure until the fluid coming from the bleed screw is a full stream with no vis-
ible signs of air in the system.
4.
Replenish the master cylinder to the top of the viewing window and secure the cover
and rubber gasket.
5.
Clean any stray brake fluid that might have found its way on to the brake disc with
brake cleaner. Brake fluid on the brake disc can seriously affect braking capabilities
of the ARGO vehicle.
8.
Pump the steering levers a few times to build up proper pressure and locate the pads
in the caliper assembly.
5.
Perform the servicing procedure, Bleeding the Hydraulic Brake System below.
Bleeding the Hydraulic Brake System
