EKKO EK20R Service Manual page 7

Brake uneven
Brake noise
Other poor braking
(1) Common faults of steering system and troubleshooting methods
Failure
To problem
drum hole
The surface of the friction plate is greasy Cleaning and replacement
Brake drum hole deviation, large hole
different center
Brake shoe clearance is not properly
adjusted
Brake shoe return spring damaged
Points and pump failure
Self-adjusting mechanism fails
Friction plate surface hardening or
impurities
The bottom plate is deformed or the
bolts are loose
Brake shoe is deformed or improperly
installed
Excessive wear of friction plate
Hub shaft is loose
The handle is not in the operating area
Brake overheating
Impurities are mixed into the brake fluid
Hand brake position cable deformation,
joint off
cause
There is air in the steering system
hydraulic line element
Working oil level is too low, inhale air
The shunt valve hole is blocked and the
spool is stuck
Steering cylinder piston rod bent
Knuckle and knuckle pin bite to death
Bright hole, ensure roundness,
concentricity
Adjust the
replace
Repair or replacement
Reset spring deformation, repair,
replacement
replace
repair
Replacement or repair
replace
replace
First move the handle to the braking
area
Brake Check for a skid
Confirm strains are mixed into the
brake fluid
Hand brake position cable
deformation, joint off
exhaust
Gas exhaust
Cleaning and replacement
Replace the piston rod
Lift the rear axle to see if you can
5
maintenance