Maintenance
3. Towing Ball
The automobile towing ball should measure
50mm maximum and 49.5mm minimum (DIN
74058). If the ball is found to be worn it
should be replaced immediately.
4. Overrunning Device
The device housing is packed with grease on
assembly, but will require periodic
maintenance to ensure smooth operation of
the braking system.
1. Regrease the shaft bearings via the
grease nipples provided at 3000 mile
intervals, and before storage.
2. Ensure correct functioning of all pivot
pins and levers and oil regularly.
3. Ensure correct functioning of handbrake
ratchet and oil regularly.
5. Jockey Wheel
Lubricate wheel and screw thread
periodically.
6. Brake Linkage
All moving parts should be lubricated
periodically to ensure their satisfactory
operation.
It is recommended that all brake linkage
threads are liberally smeared with grease for
protection and as an aid to future adjustment
of the system.
7. Corner Steadies
The screw and pivot pins should be
lubricated periodically to ensure their
satisfactory operation.
8. Braking System
At 500 miles then every 3000 miles or 1 year
check and adjust brake linkage to
compensate for any stretch of the bowden
cables.
Check and adjust wheel brakes to
compensate for wear.
IMPORTANT
When replacing the wheels you should
tighten the nuts in rotation diagonally, taking
care to tighten them equally.
The recommended torque for steel wheels is
88Nm (65 lb/ft) and for alloy wheels 115Nm
(85 lb/ft).
CHECK THE WHEEL NUTS BEFORE
STARTING EVERY JOURNEY.
TYRE WEAR AND DAMAGE
The legal requirement for tread depth on
motor vehicles also apply to caravans.
In order to equalise wear it is suggested that
the wheels be balanced and changed around
from time to time.
It is dangerous to neglect tyre damage and
should you detect a blister, a rupture or a cut
which exposes the casing or if it has
suffered a violent impact (for example
against a kerb) such that there is a risk of
internal damage, it is advisable to have it
examined by a tyre specialist as soon as
possible (as this can affect tracking).
Tyres should be inspected regularly and if
any signs of visible deterioration (sidewall
cracking, delamination of tread, etc) are
evident, they should be replaced regardless
of there being a legal minimum tread depth.
WHEELS
The condition of the wheels should be
checked regularly, particularly for distortion
of flanges and the wheel dish. Wheels which
are damaged or distorted, or having wheel
stud seatings cracked or deformed, must not
be repaired.
99
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