E NG LIS H
3. Unilateral Wheel Lock
Unilateral wheel lock may be mounted either to the right or left side of the wheelchair frame.
Loosen the screws (H) on the top of each clamp using a 3/16 inch hex key. Slide assembly toward rear wheel
until clamp embeds into tire to prevent wheel movement when in locked position. Adjust angle position. Tighten
screws to 115 in-lbs.
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G. CASTER FORKS
Two-hole caster forks allow the interchanging of some casters and adjusting seat height. To adjust, loosen the
bolt and remove the caster. Either change caster size and/or position the caster upward or downward in
predrilled holes (1 inch apart) on caster fork. Replace bolt and tighten securely.
Use a torque setting of 75 in-lbs. when adjusting the casters.
H. CASTERS
Use a torque setting of 75 in-lbs. when adjusting the casters.
1. Caster Angle Adjustment
For optimum performance, the caster housing should always be at a 90º angle to the floor (perpendicular to
the ground). This adjustment is made with an eccentric (offset) attachment bolt mechanism.
a. To change the angle, place the chair on a flat surface (such as a table).
b. Remove the bolt and nuts from the back side of the caster plate. The caster plate is slotted at the top
and bottom for adjustment.
c. Place a large right triangle against the table surface and the front surface of the caster bearing housing.
d. This will align the caster stem rotational axis perpendicular to the floor surface.
e. Rotate the bolts independently until they fall into position.
f.
When the alignment is correct, retighten the two retaining bolts.
g. Repeat the process for the other caster.
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2. Caster Reversibility
The caster housing is generally mounted in a forward-facing position. If additional footrest clearance is neces-
sary, the caster housing can be reversed. This will position the caster housing rearward to allow more clear-
ance.
a. To reverse the caster housing, the left housing should be mounted on the right side of the frame.
b. The right housing should be mounted on the left side of the frame.
I. ANTI-TIP RECEIVERS
Sunrise Medical recommends anti-tip tubes for all wheelchairs.
Use a torque setting of 115 in.-lbs. when setting up the anti-tip tubes.
2. Adjusting Anti-Tip Receiver
a. Remove anti-tip tubes from anti-tip receivers.
b. Remove bolts from anti-tip tube receiver.
c. Reposition bracket to desired height.
d. Reinsert bolts and tighten.
e. Repeat with second anti-tip tube receiver. Both brackets should be at exactly the same height.
f.
Replace anti-tip tubes.
MK-100070 RevA
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IX. DEALER SERVICE AND ADJUSTMENT
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90° °
90
90
90
FORWARD MOUNTED
FORWARD MOUNTED
REVERSE MOUNTED
REVERSE MOUNTED
Reverse
Forward
CASTER
CASTER
CASTER
CASTER
Mounted
Mounted
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37
38
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