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7.9 Caster wheels/caster forks
The combination of caster wheels and caster forks ensures the ability to hold a straight line and navigate bends
securely.
The caster wheels (Ø 3" – 6") and caster forks were installed by qualified personnel according to the order.
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7.9.1 Approach in case of stiffness
In case of stiffness, the caster forks or caster wheel axles should be cleaned and oiled.
Oiling the caster forks
1) Use a screwdriver to pry the cap off the caster fork housing (see Fig. 31, item 1).
2) Remove dirt from the caster fork around the hexagon nut (see Fig. 31, item 2).
3) Add a few drops of thin, resin-free oil to the housing (sewing machine oil).
4) Close the housing.
Oiling the caster axle
1) Remove dirt from the caster axle (e.g. hairs).
2) Lubricate the caster axle between the caster wheel and caster fork with a few drops of thin, resin-free oil (sew
ing machine oil) (see Fig. 32, item 2).
7.9.2 Replacing the caster wheels
INFORMATION
The assembly tasks described below may only be carried out by qualified personnel.
The caster wheels can be replaced in case of wear.
1) Loosen the caster wheel axle screw connection (see Fig. 32, item 1).
2) Remove the caster wheel axle/spacers (see Fig. 32, item 2).
3) Remove and replace the caster wheels.
4) Install the caster wheels together with the spacers. Tighten the caster wheel axle screw connection to 8 Nm.
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20 | Ottobock
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Invader 480S26=20000_K
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