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9 MECHANICAL
MAINTENANCE
These procedures must be carried
out by competent persons. If you
have any doubts about your ability
to complete any of the procedures we
recommend these tasks are performed
by your local distributor.
9.1 TYRES
Tyres must be maintained at the pressure
indicated on the multifunction sticker
located on the inspection door. Under-
inflation will adversely affect handling and
fuel consumption and will lead to premature
wear. If seriously under-inflated, a tyre will
overheat and fail very rapidly.
When renewing tyres, always ensure that you
purchase a tyre of the same size and load/speed
index rating. This will be found on the sidewall
of the tyre. E.g. 165/60R13C 96/94N.
Different makes or models of tyres of the
same size can have widely differing load/speed
index ratings and inflation pressures. Use of a
tyre with a lower rating can be dangerous. If in
doubt, ask a tyre distributor or our customer
Care department.
DO NOT REPLACE WITH LOWER
RATED TYRES
The maximum gross weight figure given on
the trailer plate is always equal to or less than
the approved maximum load for the tyres
multiplied by the number of tyres on the
trailer. In some cases, this includes a bonus
load which is allowed for trailer use up to
60mph. Other maximum load figures are
marked on some tyres. These do not apply to
the UK or Europe and should be disregarded.
32
9.1.1 TYRE REPAIRS
Punctures should be inspected and repaired
by a specialist tyre distributor. Do not fit
tubes to tubeless tyres as this can lead
to a "blow out" in the event of a further
puncture. If the tyre is too severely damaged
for a repair to be carried out the tyre should
be replaced.
9.2 CHANGING A WHEEL
9.2.1 JACKING UP THE TRAILER
DON'TS:
• Don't place the jack on the centre
line of the trailer under axles or
chassis cross members.
• Don't place the jack directly under the
bodywork edges, mudguards, front/rear
bumpers or the floor.
• Don't place the jack under the suspension
springs.
• Don't place the jack under the drawbars.
9.2.2 JACKING POINTS
1. Outer ends of the axles beside the springs.
2. Outer ends of the chassis cross members
beside the chassis rails.
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