User Manual
Argo Service Manual Brake System
BR-37
Ontario Drive & Gear Limited www.argoutv.com
PH.(519)- 662-2840 FAX (519)- 662-2421
9. Torque the brake line banjo bolt to speciciations. USE NEW COPPER WASHERS
ON THE BANJO BOLT.
Bleeding the Hydraulic Brake System (Service Brakes)
1. Remove master cylinder cover and add DOT 5(ONLY) brake uid as necessary.
2. With the bleed screw still tight, purge
any air from the system by pumping the
brake lever slowly. When there are no
longer visible signs of air bubbles ob-
served in the master cylinder, replenish
it with more uid to bring it back up to
the top of the full level line.
3. Next, apply steady pressure to the brake
lever until the brake is fully engaged.
Photo 58
Hold the brake lever in this position and slowly loosen the caliper bleed screw 1/4 turn.
Photo 58 Open the bleed screw only enough to slowly release uid 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 uid. Re-tighten the screw and once again pump the brake
system slowly a few more times. Apply pressure to the brake lever again and hold.
Open the bleed screw gradually until uid slowly releases. Repeat this procedure until
the uid coming from the bleed screw is a full stream with no visible signs of air in the
system.
NOTE
Catch any purged uid at the caliper bleed screw with a rag or small container of some
sort.
NOTE
Use brake cleaner on components before re-assembly to remove oil and other contaminants.
4. Replenish the master cylinder to the top level mark and secure the cover and rubber
gasket.
5. Clean any stray brake uid. Brake uid is extremely corrosive. Reinstall the cover
and pump the brake lever a few times to build up proper pressure and locate the pads
in the caliper assembly.