Great Plains CDA600 Operator Manual - Manual (Page 87)

85 Centurion CDA600
270-600M-ENG
2013-06-14
Problem Causes Solutions
No braking,
one wheel Bleed port open Close port. Re-charge and bleed
system.
Brake lining worn or missing Inspect and repair as needed.
Brake cylinder frozen Inspect and repair as needed.
Brake parts broken or missing Inspect and repair as needed.
No braking,
all wheels Loss of fluid in drill brake lines Check for fluid loss at all fittings and
bleed ports. Close/repair, recharge and
bleed.
Line(s) to tractor improperly connected Check connections.
Trailer brake system disabled or
malfunctioning in tractor Check function with another trailer.
Tractor line pressure insufficient Have dealer check pressure at port.
Drill pulling to one
side See “Dragging brake” below. Check “wheel lockup” causes before flat
spots develop on tyres.
Brakes always
engaged, all
wheels Over-extended adjuster Reset adjuster pawls and allow system
to self-adjust.
Air/Hydraulic system: Tractor air brake
lines reversed, and Supply line is
causing brakes to be always on Reverse air line connections at hitch.
Hydraulic/Hydraulic system: Drill brake
line connected to incorrect always-on
remote. Connect drill brake line to correct
remote.
Pressure supplied by tractor brake line
is always too high (hydraulic), or too low
(air brake) Maximum allowed hydraulic pressure is:
150 bar / 2175 psi.
Minimum required air pressure is: 550
kPa / 80 psi
Dragging brake Over-extended adjuster Reset adjuster. Inspect to discover why
it over-extended.
Debris in brakes Remove brake shoes. Clean and dry.
Distorted brake parts scraping Replace damaged parts.
Weak return spring Replace all springs.
Piston seized in brake cylinder Rebuild or replace cylinder.
Brakes grab,
chatter or rattle Weak return springs Replace all springs.
Drum worn, distorted or out of round Re-surface drum if run-out is within
specification, otherwise replace.
Under-inflated or undersize tyre in pair Replace tyre if inflation to specification
does not solve unequal contact problem.
Loose, worn, damaged or missing brake
components in hub Inspect brakes.
Loose or worn wheel bearings Replace bearings.
Flat spots on tyres See ““Brakes always engaged, all
wheels”
Squealing from
brakes Worn brake linings Check brakes. Replace worn linings.
Distorted brake parts scraping Check brakes. Replace damaged parts.
6. Faults and Remedies