Ford TRADER Workshop Manual page 597

BRAKE SYSTEM
p
TROUBLESHOOTING GUIDE
Problem
Possible cause
Remedy
Page
Poor braking
Leakage of brake fluid
Repair
-
Air in system
Air bleed
P- 6
Worn lining
Replace
P-27 ,32
Brake fluid, grease, oil, or water on lining
Clean or replace P-27,32
Hardening of lining surface or poor contact
Grind or replace P-27,32
Malfunction of master cylinder or wheel cylinder
Repair or replace P-12,28,33
Malfunction of power brake unit
Repair or replace P-18
Malfunction of check valve (vacuum hose)
Repair or replace
P-17,24
Damaged vacuum hose
Replace P- 9
Deterioration of flexible hose
Replace P- 7
Malfunction of LSGV
Replace P-26
Worn drum
Replace
P-28,33
Malfunction of vacuum pump
Inspect
P-22
Overloaded
Correct
-
Wheel and tire related problem
-
Section Q
Brakes pull to one
Worn lining
Replace P-27 ,32
side
Brake fluid, grease, oil, or water on lining
Clean or replace
P-27,32
Hardening of lining surface or poor contact
Grind or replace
P-27,32
Abnormal wear or distortion of drum, or lining
Repair or replace P-28,33
Looseness of backing plate mounting bolts
Tighten P-28,33
Malfunction of wheel cylinder
Repair or replace P-28,33
Malfunction of master cylinder Repair or replace P-12
Wheel and tire related problem
-
Section Q
Looseness
of wheel bearing
or improper adjustment of
Replace or adjust
Section M
preload
Brakes do not
No brake pedal play
Adjust
P-10
release Improperly adjusted push rod clearance
Adjust
P-12
Clogged master cylinder return port
Clean
-
Weak shoe return spring Replace P-28,33
Wheel cylinder not returning properly Clean or replace P-28,33
Improperly adjusted pedal height Adjust P-10
Improperly adjusted wheel bearing preload Adjust Section M
Pedal goes too far Improperly adjusted pedal play Adjust
P-10
(too much pedal Worn pad or lining Replace
P-27 ,32
stroke) Air in system
Air bleed
P- 6
Excessive steering Brake drag Repair
-
wheel play Steering related problem
-
Section N
Wheel and tire related problem
-
Section Q
Suspension related problem
-
Section R
Vacuum warning Malfunction of vacuum pump Inspect
P-22
buzzer
is
operating
Damaged vacuum hose
Repair or replace
P- 9
(Australia payload
Malfunction of check valve (vacuum hose) Repair or replace
P-17,24
3,500 kg and
Faulty vacuum switch
Inspect Section T
4,000 kg)
Abnormal noise or Worn lining Replace
P-27,32
vibration during Deteriorated lining
Grind or replace
P-27,32
braking
Brakes do not release
Repair
-
Foreign material or scratches on drum contact surface
Clean
-
Looseness of backing plate mounting bolts Tighten
P-28,33
Damaged drum contact surface
Replace
P-28,33
Poor contact
of
lining
Repair or replace
P-27 ,32
Insufficient grease on sliding
parts Apply grease
-
Looseness of wheel bearing or improper adjustment of Replace or adjust
Section M
preload
9TFOPX-OOS
P-5