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2.3.1 Removing/Replacing Rear Transit Wheel Assemblies
General
Note: This chair can be fitted with the following wheel types:
(a)
Transit style, 315 mm solid or pneumatic.
(b)
A 20 in, 22 in or 24 in diameter wheel with hand rim and Quick Release (Q.R.) hub,
solid or pneumatic tyres.
1
Check the wheel assembly for any defects (refer to paragraph 5). If any defects are observed then refer to
paragraphs 6 to 11 for maintenance details and to Chapter 3 for parts.
2
The main wheel assembly can be renewed as a complete assembly.
Tools
3
Refer to the tool list at the beginning of this Chapter.
3.1
A torque wrench of 25 lbf.ft rating is required.
Inspection
4
Inspect on a weekly basis for the following:
4.1
Damage to either wheel or tyre.
4.2
When the wheel assembly is allowed to free wheel that no binding, grating noise or
unconcentric rotation are present.
4.3
Wheel rim and spokes are undamaged.
4.4
If fitted, the hand rim is undamaged.
4.5
Excessive bearing rock.
Removing A Transit Wheel Assembly
5
To remove a transit wheel (3) (refer to Fig 2.3.1) proceed as follows:
5.1
Raise and support the chair so the damaged wheel is free of the ground.
5.2
Using a suitable size spanner grip the nut located behind the wheel hub.
5.3
Using the torque wrench, unscrew and remove the wheel locknut (1) and washer (2).
5.4
Slide the wheel (3) free from its location on the frame.
Replacing A Main Wheel Assembly
CAUTION: Apply Loctite 242 to the thread of the wheel shaft and ensure that the transit wheel
Note: Refer to section 2.3.1 for further information on configuration details.
6
Replacing the main wheel assemblies is the reverse of the removal.
11/03
locknut is tightened to a torque of 25 lbf.ft.
MAINTENANCE
Page 2.15
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