Castor Wheel And Fork - Invacare Spectra Plus Technical Manual

Section
CASTOR WHEEL AND
FORK
PARTS
1. Castor fork
2. Washer
3. Nyloc Nut
4. Axle Bolt
5. Nyloc Nut
6. Pneumatic Castor
7. Bearing
8. Trye
9. Inner Tube
10. Hub Centre
11. Castor Wheel
12. Fork Stem
13. Bearings
TOOLS REQUIRED
19mm Socket Spanner X 2
Flat Bladed screwdriver
Mallet
Pressure Gauge.
Tyre Levers
Pump Drift
INTRODUCTION
STEP 1
Check castor wheels are not bucked for physically damaged. Replace if required.
STEP 2
Check that the wheel bearings run freely without excessive play.
STEP 3
Check that the castor wheel and fork nuts are tight.
STEP 4
Check that the castor forks are bent or damaged.
STEP 5
Check the crown/castor fork bearings for wear and correct adjustment,
STEP 6
Check tyres for wear and correct inflation. Both wheels should show the same degree of wear (see side of tyre
pressure rating) for tyre fitment see rear tyre section.

CASTOR WHEEL AND FORK

DISMANTLING
STEP 1
Remove castor socket cap with flat bladed screw driver, hold the lower fork stem nut secure with 19mm
spanner and remove the upper fork stem nut,
STEP 2
Gently tap the threaded end to the fork stem with a mallet taking care not to damage the threads. Remove the
castor fork assemblies.
Page 12 of 78
Spectra Plus Tech Manual
19/01/2004