Activeforever Invacare Tracer IV Wheelchair - Manual (Page 40)

SECTION 8—FRONT CASTERS
Tracer ® IV 40 Part No. 1110558
Adjusting Forks
1. To properly tighten caster journal system and guard against flutter, perform the
following check:
A. Tip back of wheelchair to floor.
B. Pivot both forks and casters to top of their arc simultaneously.
C. Let casters drop to bottom of arc (wheels should swing once to one-side, then
IMMEDIATELY rest in a straight downward position).
D. Adjust locknuts according to freedom of caster swing.
E. Repeat STEPS C-D until wheels swing once to one-side, then IMMEDIATELY rest
in a downward position.
2. Test wheelchair for maneuverability.
3. Readjust locknuts if necessary, and repeat STEPS 1-2 until correct.
4. Snap dust cover over the locknut and stem.
Replacing Front Casters
ƽ WARNING
Only 8-inch casters should be installed on the Tracer IV wheelchair. Otherwise, the
wheelchair may become unstable and injury or damage may occur.
For Heavy Duty Wheel Option (450 lb weight limit): 8 x 1¾ inch semi-pneumatic
front caster MUST be used.
Only a qualified technician may change the front caster mounting position or the
seat-to-floor height.
NOTE: For this procedure, refer to FIGURE 8.2 on page 41.
NOTE: Note the caster mounting position on the fork assembly for proper installation of the new
front caster.
1. Remove the hex screw, washers and locknut that secure the front caster to the fork.
NOTE: Washers are only used with 8-inch casters with precision bearings.
2. To reinstall the new front caster onto the fork, reverse STEP 1.