Swift Tourer Owner's Handbook Manual page 210

C HAS S I S T ROU B LESHOOTI N G
Table 2 Coupling Heads
Fault
Coupling does
not engage onto
ball
Difficulty in
Uncoupling
Too much play in
the coupling
Table 3 Overrun Devices
Fault
Poor Braking
Brakes
Overheating
During Towing
Handbrake
Force Low
Brakes
Apply During
Deceleration or
Downhill Travel.
208
Cause
Ball diameter too large.
Ball could be damaged or
deformed.
Coupling head dirty or
defective.
Ball damaged or deformed.
Coupling damaged or
deformed.
Coupling head under pressure
from damper.
Coupling damaged or
deformed
Ball too small
Cause
Overrun shaft tight.
Overrun shaft corroded.
Body housing damaged.
Handbrake not fully released.
Braking system incorrectly set.
Incorrect attachment of
breakaway cable.
Defective gas strut.
Incorrect setting of spring
cylinder.
Overrun damper is defective.
Remedy
Change ball to correct size.
Fit new ball.
Clean & Lubricate coupling and replace if
necessary.
Fit new ball.
Replace if necessary.
Pull forward a few inches to relieve
pressure
Replace if necessary.
Fit new ball.
Remedy
Lubricate overrun shaft and replace any
damaged parts.
Release handbrake.
Reset brakes as page 175.
Ensure correct attachment as listed on page
22 or refer to Braked Trailers
Use of Breakaway Cables sheet.
Replace gas strut.
Reset spring cylinder as page 175.
Replace the overrun damper.