Polar Electro 520 CTH DB 2020, Instruction Book

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Chassis
Tyres
Stabiliser legs
Stabiliser legs are installed at the front and rear of the
caravan. The stabiliser legs are wound up and down using
the crank located in the LPG box.
4. Unscrew the wheel nuts and change the wheel.
5. Tighten the wheel nuts so that the wheel is securely
mounted, lower the jack and then post-tighten the
wheel nuts crosswise.
6. Tighten the wheel nuts one more time after driving
some twenty or thirty kilometres.
3. Place the jack in a suitably place under the chassis
member (see picture) and lift the caravan. In case of
puncture the caravan will be lower, so the jack must
be placed under the chassis member a bit from the
wheel. Afterwards, secure with axle stands.
The caravan’s support legs must not be used as jacks.
The caravans have a chassis of strong structural members
made of galvanised steel.
The wheel housings are made of plastic.
The wheel axle has rubber torsion suspension and teles-
copic shock absorbers.
The chassis and drawbar are designed to be coupled to
a private car, with the suspension characteristics it pos-
sesses. SoliferPolar AB accepts no responsibility if the
caravan is coupled to a vehicle whose suspension is too
rigid, such as lorries, buses and some older jeeps. Modern
4-wheel drive vehicles with suspension similar to that used
in private cars can be used to tow the caravans, however.
In the event of a puncture
1. Apply the parking brake.
2. Undo the wheel nuts a little, but do not remove them.
Check the air pressure in the tyres regularly
in order to avoid unnecessary tyre wear and
impaired driving characteristics.
∆
SoliferPolar AB accepts no liability for any consequences
if other tyre dimensions or tyre designs are used.
Friction tyres on the caravan may be used both on summer
and winter surfaces, which is not the case with studded
tyres. In order for the friction tyres to be approved for
winter road surfaces, they must be marked with M + S,
M.S. or M&S M-S MS or Mud & Snow.
The following tyre combinations are approved:
• If the towing car has studded tyres, the caravan must
have studded tyres.
• If the towing car has friction tyres, the caravan must
have friction tyres or studded tyres.
• If the towing car has summer tyres, the caravan must
have friction tyres or summer tyres.
Chassis
Always use wheel nuts that are intended for
the type of rim being used.
∆
Facts and figures
Tyres
Caravan model Dimensions Tyre pressure
520 205/70R 15 C steel radial max 450 kPa (4,5 kp/cm
2
)
560 205/70R 15 C ” max 450 kPa (4,5 kp/cm
2
)
590 205/70R 15 C ” max 450 kPa (4,5 kp/cm
2
)
620 205/70R 15 C ” max 450 kPa (4,5 kp/cm
2
)
650 205/70R 15 C ” max 450 kPa (4,5 kp/cm
2
)
680 195/65 15 XL ” max 300 kPa (3,0 kp/cm
2
)
730 195/65 15 XL ” max 300 kPa (3,0 kp/cm
2
)
840 195/65 15 XL ” max 300 kPa (3,0 kp/cm
2
)
Tightening torque for the wheel nuts
Steel rim 80-100 Nm (8-10 kpm)
Aluminium rim 110-120 Nm (11-12 kpm)
∆
Always secure the caravan with axle stands
before changing a wheel or commencing
other work under the caravan.
Crank
Stabiliser legs
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