Checking the tyres
Treads
Check treads on tyres.
1.60mm on cars, light
vans and trailers across
the centre three-quarters
of the width (1mm for
other vehicles)
Sidewall
Check for sidewall damage to tyres.
Wheel rims
Check wheel rims are free of damage.
Damaged side wall
Side wall in good condition
Wheel nuts
Check wheel nuts are secured:
Tighten to 90 NM
Wheel nut indicators
Wheel nut indicators are a simple way to
monitor your wheel nut tightness.
These wheel nut indicators give you a simple
guide to any movement of a wheel nut.
Tyre pressures
Check tyre pressures.
90 PSI
Wheel nut indicators
correctly aligned
Wheel nut indicators
out of alignment
Wheel rim
08
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www.groundhog.co.uk
Mobile GP360 & GP500 Fusion Pulse Units
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User’s Guide
Towing Safely
Section
5