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Hoses and fittings
Poor seals are usually caused by:
•
Missing O-rings or gaskets
•
Damaged or incorrectly seated O-rings
•
Dry or deformed O-rings or gaskets
•
Foreign bodies
Therefore, in case of leaks:
Do not over-tighten. Disassemble, check condition and
position of the O-ring or gasket, clean, lubricate and
reassemble. The O-ring is lubricated all the way round
before fitting on to the nozzle tube. Use non-mineral
lubricant.
For radial connections, only hand tighten them.
Fig 61
For axial connections, a little mechanical leverage may
be used.
Fig 62
HARDI NAVIGATOR
Tyres
Should it be necessary to replace tyres, follow the
following rules when doing so. If uncertain about any
aspect, have a specialist do the job:
•
Always clean and inspect the rim before mounting.
•
Always check that the rim diameter corresponds
exactly to the rim diameter moulded on the tyre.
•
When fitting new tubed tyres always fit new tubes.
Always use tubes of recommended size and of good
condition.
•
Inspect inside the tyre for dirt or foreign bodies and
remove them if installing a tube.
•
Do not use tubes in tubeless tyres.
•
Tyres with irreparable damages must never be used.
•
Always inspect inside the tyre for cuts, penetrating
objects or other damage. Damages must be repaired
before installing a tube.
•
Before mounting always lubricate both tyre beads
and rim flange with an approved lubricating agent or
equivalent anti-corrosion lubricant. Never use petro-
leum based greases and oils because they may
result in damage to the tyre. Using the appropriate
lubricant the tyre will never slip on the rim.
•
Always use specialised tools as recommended by
the tyre supplier for mounting the tyres.
•
Make sure that the tyre is centred and the beads are
perfectly seated on the rim. Otherwise danger of
bead wire tear can occur.
•
Inflate the tyre to 100 - 130 kPa (14.5 - 19 psi) then
check whether both beads are seated perfectly on
the rim. If any of the beads do not seat correctly,
deflate the assembly & re-centre the beads before
starting inflation of the tyre. If the beads are seated
correctly on the rim, inflate the tyre to a maximum of
250 kPa (36 psi) until they seat perfectly on the rim.
•
Never exceed the maximum mounting pressure
moulded on the tyre.
•
After mounting tyres adjust inflation pressure to
operation pressure recommended by the tyre manu-
facturer. Tyre pressures and Load limits (Page 22)
can be used as a guide.
WARNING! Non observance of mounting instruc-
tions will result in the bad seating of the tyre on the
rim and could cause the tyre to burst, leading to
serious injury or death.
CAUTION! Never mount or use damaged tyres or
rims!
CAUTION! Use of a damaged, ruptured, distorted,
welded or brazed rim is not acceptable and may be
the cause of serious injury.
17
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