UMF Medical FUSIONONE 3001 Owner's Manual page 13

COMMON OPTIONS AND ACCESSORIES
Bierhoff Knee Crutch (251-Pair)
1
Extend stirrups to full-extended position
with heel stirrup in retracted position.
2
Insert knurled end of knee crutch rod into
hole on end of stirrup.
3
Adjust to position and tighten with slide lock.
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