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We have added an enhanced feature to our jogging strollers that allows
the customer to fine tune the tracking of their stroller. This document is
designed to supplement to the Owners Manual. Proceed with initial
setup and use of your stroller and only refer to this document if
you believe there is a tracking problem with your stroller.
All fixed three wheeled vehicles can be easily influenced to deviate from
a straight path. In some cases strollers can have or develop a tendency
to pull to the right/left due to many different factors including tire pressure,
wheel installation, road conditions and manufacturing tolerances. If you
find your BOB stroller to significantly track or pull to the left or right during
use on flat terrain, follow the sequence of instructions below.
Tracking Adjustment Instructions:
The fine-tuning of desired tracking should be performed in the following
sequence.
1) Confirm the rear wheels are installed correctly. Refer to step 4 of the
Owners Manual for installation instructions.
2) Confirm the front wheel is installed correctly. Refer to step 6 of the
Owners Manual for correct installation instructions. When tightening the
quick release make sure the front wheel is pushed straight and equally
toward the back of the dropouts.
3) Check the tire pressure, making sure the tire pressure is exactly the
same on all three tires.
4) Roll test the stroller as described below. It is recommended you have
someone assist with this task in order to catch and return the stroller.
Fig. 1 illustrates the roll test process.
a. Empty the stroller. Do not roll test with a child or any occupant
in the stroller.
b. Find a location on level ground approximately 16 ft. long. It is helpful
to use an existing straight-line as a frame of reference such as the
edge of the sidewalk or a painted line in a playground.
c. Align the stroller so the rear wheels are perpendicular to the straight
line. Push and release the stroller trying carefully not to influence its
direction to the left or right so it rolls straight down the test path. This
step should be performed more than once to make sure the stroller
was not biased left or right by the pushing action.
d. If the stroller consistently pulls to the left or right when pushed straight,
proceed with the steps below until tracking is satisfactory. Fig 1.
illustrates how to interpret the results.
Reference convention: Left and right are described as viewed from the
operators frame of reference (behind the stroller). Example: The parking
brake lever is on the left side of the handlebar.
5) Rotate the front axle. Often tracking can be corrected by simply rotating
the front wheel axle.
a. Open the front wheel quick release, step 6 of the Owners Manual.
Rotate axle 90 degrees in dropout, Fig. 2 and retighten quick release.
b. Perform roll testing again. If the stroller still consistently pulls to the
left or right when pushed straight, proceed to next step.
6) Reorient the front wheel. Many times the tracking can be corrected
by removing the front wheel and flipping it around and reinstalling it.
a. Open the front wheel and front brake quick releases, step 6 of the
Owners Manual. Remove the front wheel and flip it around so the quick
release lever is on the opposite
side, Fig. 3. Reinstall the front
wheel, secure the wheel and
brake quick release levers.
b. Perform roll test again. If the
stroller still consistently pulls to
the left or right when pushed
straight, proceed to next step.
7) Fine tune tracking of stroller
is accomplished by using the
adjustment knobs shown in Fig.
4.
If your stroller pulls to the
right, proceed as follows:
a. Open quick release lever on
front wheel, step 6 in the Owners
Manual. It is not necessary to
remove the front wheel.
b. Turn the right knob clockwise
1-full turn, as shown in Fig. 5,
thereby pushing the right side of
the wheel forward. Retighten
quick release.
c. Repeat Roll test. If stroller still
pulls to the right, repeat steps A
and B.
If your stroller pulls to the left,
proceed as follows:
a. Open quick release lever on
front wheel, step 6 in the Owners
Manual. It is not necessary to
remove the front wheel.
b. Turn the left knob clockwise
1-full turn, as shown in Fig. 6,
thereby pushing the left side of
the wheel forward. Retighten
quick release.
c. Repeat Roll test. If stroller still
pulls to the left, repeat steps A
and B.
Fig. 1
Stroller Roll Test
Top View Of Stroller
16
Stroller pulls
to left
90
o
Wheel axles
perpendicular
to straight line
Stroller pulls
to right
tra
tra
c
c
kin
kin
g ins
g ins
tr
tr
uctions
uctions
(800) 893-2447 www.bobgear.com email- info@bobgear.com
Phone: (208) 375-5171 Fax: (208) 375-5172, BOB Trailers, Inc. 5475 Gage St. Boise, Idaho 83706
Rotate axle 90
o
Fig. 2 Rotate Axle
Wheel Reoriented
With Quck Release
Lever On Opposite
Side
Fig. 3
Reorient Front Wheel
Left
Adjust Knob
(Fig. 6)
Right
Adjust Knob
(Fig. 5)
Front
Wheel
Fig 4. Adjust Knobs
Fig. 6 Left Adjust Knob
Turn Knob Clockwise
1 Full turn
Turn Knob Clockwise
1 Full turn
Fig. 5 Right Adjust Knob
OMS09B