Replacing Puncture-Proof Tyres - Invacare Storm4 Max Service Manual

SERVICE MANUAL

7.18.2.3 Replacing puncture-proof tyres

Requirements:
 6 mm Allen key
 Two long wooden blocks, min. 14 x 14 x 30 cm
 Three joiner's clamps with plastic caps
 Torque spanner 5 - 25 Nm (or similar)
 Talcum powder
Removing the tyres:

Remove the wheel as described in chapter 7.18.1.
ATTENTION: Explosion hazard!
There is considerable pressure in the tyre. Danger of injury! Parts can be thrown out and
injure you if you do not secure the rim rings.
 Secure the rim rings with joiner's clamps.

Secure the rim rings against unexpected discharge with three joiner's clamps. When doing so,
ensure that you do not scratch the rims.

Undo the five 6 mm Allen screws (2) on the inside of the wheel.

Now loosen the joiner's clamps carefully and alternately until you can remove the rim rings
without danger.

Remove the inner (3) and outer (1) ring of the rim from the tyre (4).

Replace any defective or worn parts.
Refitting the tyres:

Refit the tyres to the rim in the reverse sequence.

When fitting the rim rings together, ensure that the drillholes and threads for the bolts are
placed exactly above each other.

Place the joiner's clamps in position.

Tighten the joiner's clamps alternately in small stages until the rim rings are precisely aligned.

Tighten the Allen screws (2) to 18 Nm.
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Invacare - STORM MAX