BOB OMS03A operating instructions Hand Brake

Page 3

Adjusting the quick release mechanism

 

 

 

Fig. 7 Fender Screws

 

 

 

 

 

 

The wheel hub is clamped in place by the force of the quick release cam pushing against

Fabric Screw

 

one dropout and pulling the tension adjusting nut, by way of the skewer, against the

 

 

 

 

 

 

other dropout. The amount of clamping force is controlled by the tension adjusting nut.

 

 

 

Turning the tension adjusting nut clockwise while keeping the cam lever from rotating

 

 

 

increases clamping force; turning it counterclockwise while keeping the cam lever from

 

 

 

rotating reduces clamping force. Less than half a turn of the tension adjusting nut can

 

 

Fabric Screw

make the difference between safe clamping force and unsafe clamping force.

 

 

 

 

 

 

Fender Screws

Front Wheel Secondary Retention Devices

 

 

 

 

 

 

 

 

 

 

 

All 2007 and newer BOB Strollers have front forks which utilize secondary wheel retention

 

 

 

devices designed to help keep the wheel from disengaging if the quick release is

 

 

 

 

incorrectly adjusted. Secondary retention devices are not a substitute for correct quick

 

 

 

release adjustment. The secondary retention devices on your stroller are the integral

 

 

 

type that is formed into the outer faces of the front fork dropouts.

 

 

 

 

 

WARNING: Do not remove or disable secondary retention devices. As its name

Fig. 8 Fender Installation

Metal Tab Hole

implies, they serve as a back-up for a critical adjustment. If the quick release is

 

 

 

not adjusted correctly, the secondary retention devices can reduce the risk of the

Brake

Cross Tube Hole

 

wheel disengaging from the fork. Removing or disabling the secondary retention

Mounting

 

 

devices may also void the warranty.

 

 

 

Plate Hole

 

 

Secondary retention devices are not a substitute for correct quick release

 

 

 

 

adjustment. Failure to properly adjust the quick release mechanism can cause

 

 

 

 

the wheel to wobble or disengage, which could cause you to lose control and fall,

 

 

Fender

resulting in serious injury or death.

 

 

 

 

 

Screw

Installing a Quick Release Front Wheel:

 

 

 

 

 

 

 

 

 

 

 

a. Move the quick release cam lever so that it curves away from the wheel (Fig. 9). This

Fabric

 

 

Screw

 

 

is the FULLY OPEN position.

 

 

 

Hole

 

 

b. Insert the wheel between the fork blades so that the axle seats firmly at the top of

 

 

Fender Hole

 

the slots that are at the tips of the fork blades — the fork dropouts. The quick release

 

 

 

cam lever should be on the left side of the stroller (Fig. 11 & 12).

 

 

 

 

 

c. Holding the quick release cam lever in the OPEN position with your right hand as

 

Tension

 

 

shown in Fig. 11, tighten the tension adjusting nut with your left hand until it is finger

 

FULLY

tight against the fork dropout.

 

 

 

Adjusting

 

CLOSED

d. While pushing the wheel firmly to the top of the slots in the fork dropouts, and at the

Nut

 

 

same time centering the wheel rim in the fork, move the quick release cam lever

 

 

 

 

upwards and swing it into the FULLY CLOSED position (Fig. 9 & 12). The lever should

 

 

 

now be parallel to the fork blade and curved toward the wheel. To apply enough

 

(rotate to

 

 

clamping force, you should have to wrap your fingers around the fork blade for

 

 

 

leverage, and the quick release cam lever should leave a clear imprint in the palm

adjust

 

 

of your hand.

 

 

 

clamping

 

 

WARNING: Securely clamping the wheel takes considerable force. If you can fully

force)

Conical Springs

 

 

 

close the quick release without wrapping your fingers around the fork blade for

 

 

 

leverage, and the quick release cam lever does not leave a clear imprint in the

 

 

Quick Release

FULLY

palm of your hand, the tension is insufficient. Open the lever; turn the tension

 

 

Cam Lever

OPEN

adjusting nut clockwise a quarter turn; then try again.

 

 

 

 

 

e. If the quick release cam lever cannot be pushed all the way to the fully closed position

Fig. 9

Front Wheel Quick Release Anatomy.

parallel to the fork blade, return the lever to the OPEN position. Then turn the tension

 

 

 

adjusting nut counterclockwise one-quarter turn and try tightening the lever again.

Fig. 10 Caliper Brake Anatomy

 

Removing a Quick Release Front Wheel:

 

 

 

10 mm Nut

 

 

 

 

 

 

a. To remove the front wheel, open the brake quick release (Fig. 10).

 

 

Barrel

Brake Body

 

 

 

Adjuster

 

Brake & Fender

b. Move the wheel’s quick-release lever from the locked or FULLY CLOSED position

Lock

 

Mounting Screw

to the FULLY OPEN position (Fig. 9). Your front fork has integral secondary

 

 

 

 

Nut

 

 

retention devices. Loosen the tension adjusting nut enough to allow removing the

 

 

 

 

 

 

 

wheel.

 

 

 

Brake

 

 

c. Raise the front wheel a few inches off the ground and tap the top of the wheel with

 

 

the palm of your hand to knock the wheel out of the front fork.

 

 

Quick

 

 

 

 

 

 

Release

 

Brake

7. HAND BRAKE:

 

 

 

Lever

 

 

 

 

 

Pad Nut

 

 

 

 

 

The hand brake may be used to help slow or stop the stroller.

 

 

 

 

 

The hand brake is not a parking brake. (See section 8)

 

 

 

 

 

After installing the front wheel, the brake caliper will need to be placed in the closed

 

 

 

 

position. Close the brake quick release lever (Fig. 10) by squeezing the brake pads

 

 

 

 

against the wheel with one hand, then rotate the brake quick release lever in the counter

 

 

 

clockwise direction with your other hand until

 

it

 

 

 

points downward.

 

Fork

 

 

 

 

For the hand brake to work correctly, it is

Tension

Blade

Quick

 

 

critical that it be adjusted properly. Squeeze

Adjusting

Fork

 

 

the brake lever and verify that the brake

Nut

Release

 

 

pads contact the rim as shown in Fig. 15.

 

Dropouts

Cam Lever

 

 

If they are misaligned, use a 10mm wrench

 

 

Closed

 

 

to loosen brake pad nuts, slide pads into

 

Quick

 

 

 

 

correct position and tighten securely. The

 

Release

 

 

 

 

cable tension is pre-adjusted at the factory

 

Cam

 

 

 

 

yet the brake cable will need periodic

 

Lever

 

 

 

Fork

adjustment (as the cable stretches slightly

 

Open

 

 

 

Blade

and the black cable housing compresses

Fig. 11 Front fork dropouts shown

 

 

 

 

over time). To adjust cable tension, there

 

 

Fig. 12 Quick Release in the closed

are two barrel adjusters in the brake

with wheel in position. Adjust nut snug

 

 

assembly (Fig.10 & 13). To tighten the cable,

with Quick Release in open position.

 

 

position and parallel to fork blade.

loosen the lock ring and turn the barrel

 

 

 

 

 

 

 

 

OMS03A

 

 

 

 

 

P3

Image 3
Contents Swing Arm AGE Recommendations Assembly InstructionsHand Brake SUN Canopy Seat Safety HarnessParking Brake AfodFolding Wrist Safety StrapStroller Care & Maintenance Shock AbsorbersStroller Accessories Limited WarrantyProceed as follows Tracking Adjustment InstructionsIf your stroller pulls to the right, proceed as follows If your stroller pulls to the left