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SECTION 5—REAR WHEELS/FRONT CASTERS
Adjusting the Wheelbase Length
NOTE: For this procedure, refer to FIGURES 5.5 a; (A, B, C & D Positions), 5.5 b (Active
Position) & 5.5 c (Very Active Position)
1. Remove the wheel. Refer to Removing/Installing Rear Wheels paragraph.
2. Remove the two mounting screws that secure the top and bottom of the axle plate to
the wheelchair frame (A, B, C & D Positions). Remove the four mounting screws that
secure the top and bottom of the axle plate to the wheelchair frame (Active Position
& Very Active Position).
C A U T I O N
The top of the axle plate must remain on the plastic seat bracket.
Otherwise, scratching and slight frame damage may occur.
3. Align the axle plate with one of four adjustment holes. There are 4 positions possible:
• Factory setting for Fixed backrest is Standard position “A”, for Recliner backrest is
Passive position “B”. Refer to detail “A” next page.
• High Active position “C” and Medium position “D” (these positions are not a factory
setting).
W A R N I N G
The two mounting screws need to be two adjustment holes apart to maintain frame
integrity (A, B, C & D Positions).
The four mounting screws need to be four adjustment holes apart to maintain frame
integrity (Active Position & Very Active Position).
Respect factory settings related to backrest type (Standard “A” for Fixed, Passive
“B” for Recliner), refer to detail “A” of FIGURE 5.6.and to seat depths (400 mm or
450 mm).
High Active position “C” and Medium position “D” (not factory settings) of the axle
plates directly relate to the stability of the wheelchair. Any change to one or
any combination of the 4 positions may cause the wheelchair to
increase/decrease in stability.
Anti-tippers can be fitted to secure the stability if required. Refer to SECTION 9.
NOTE: When using the last adjustment position, the existing mounting screw needs to be
switched to the front of the back-cane bracket.
4. Repeat STEPS 1 to 3 for the other axle plate.
NOTE: Both axle plates should be set at the same position. Head of bottom mounting
screws needs to be on the outside position.
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