Invacare ARROW MWD - Manual (Page 76)

76
WARNING
The threaded rod must be engaged in the
adjustment barrel at least eight (8) full threads.
Otherwise, injury or damage may occur.
5. Realign the top of stabilizer fork assembly with the
mounting hole in the base frame noted earlier.
NOTE: Further height adjustment can be accomplished
by using the alternate mounting hole in the base frame.
See DETAIL “A”.
6. Secure stabilizer to base frame with existing mount-
ing screw and locknut.
7. To increase spring compression, refer to ADJUST-
ING SPRING COMPRESSION in this procedure of
the manual.
NOTE: Adjust both stabilizers equally to maintain proper
handling.
8. Repeat for opposite stabilizer.
9. Test wheelchair for handling/maneuverability.
10. Repeat STEPS 1-7 until desired comfort and ma-
neuverability is achieved
Adjusting Spring Compression
1. Perform one (1) of the following
A. To increase spring compression, turn adjustment
nut CLOCKWISE two (2) to four (4) revolutions.
B. To decrease spring compression, turn adjustment
nut COUNTERCLOCKWISE two (2) to four (4)
revolutions.
FIGURE 11 - ADJUSTING STABILIZERS
Adjustment
Barrel
Spring
Mounting Screw
Top of
Stabilizer Fork
Assembly
Base
Frame
Locknut
Jam Nut
Alternate Mounting Hole
DETAIL “A”
Adjustment Nut
Threaded
Rod
Top of Stabilizer
Fork Assembly
NOTE: This setting would allow the wheelchair to
roll better on thicker carpeting and minimize scuff-
ing.
C. If distance is between 0 and 3/8-inch, along with
an increase in spring compression, the amount
of rocking the user experiences will decrease. Al-
though, this setting would minimize rocking, ob-
stacles protruding from the ground as well as ne-
gotiating steeper inclines will be more difficult.
8. Adjust the stabilizers to the desired setting determined
in STEP 7. Refer to ADJUSTING STABILIZERS in
this procedure of the manual.
Mounting Screws
(Two (2) on each
bracket)
Seat Support Bracket
Front of
Base Frame
Front of Seat
Support Bracket
FIGURE 10 -ADJUSTING WEIGHT DISTRIBUTION
ADJUSTING STABILIZERS
(FIGURE 11)
NOTE: Adjust the stabilizers to the desired handling/ma-
neuverability determined in ADJUSTING WEIGHT DIS-
TRIBUTION in this procedure of the manual.
NOTE: Note the mounting position of the stabilizer to the
base frame for proper reinstallation.
Height Adjustment
1. Remove the mounting screw and locknut that secures
the top of the stabilizer fork assembly to the base
frame.
2. Swing top end of stabilizer fork assembly forward.
3. Loosen jam nut, located below adjustment barrel.
4. Perform one (1) of the following:
Turn the adjustment barrel CLOCKWISE to raise the
stabilizer wheel.
Turn the adjustment barrel COUNTERCLOCKWISE
to lower the stabilizer wheel.
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MWD WHEELCHAIRS PROCEDURE 15