Adjusting The Rear Wheel In The Multi-Adjustable Axle Plate; Adjusting The Caster Fork; Wheel Base Long; Mounting And Adjusting The Anti-Tipper - Ottobock Dino 3 Instrucciones De Uso

10.1. Adjusting the rear wheel in the multi-adjustable axle plate (Fig. 32)
The further back the rear wheel is attached, the longer the wheel base and the greater the stability of the mobility
base.
By attaching the rear wheel in a more forward position, the maneuverability of the mobility base increases while also
increasing, however, the risk of tipping over to the rear. Using the anti-tipper is strongly recommended when in this
position.
• Please note that if you change the position of the rear wheels you will have to readjust the wheel lock ("Adjusting
the wheel lock", page 24).
• Make sure to retighten all screws and nuts after making adjustments!
10.2. Adjusting the caster fork (Fig. 33)
Spacing washers are used to ensure the frame is in the correct horizontal position.
Use the levelling device provided to verify if the lower frame tube is horizontal (ensure the ground is flat and level).
If this is not the case, remove the black protective bushing. To do this open the screw connection (item 1) of the caster
fork axle.
Placing the spacing washers between lower and upper contact surface will allow the lower frame tube to come to
correct horizontal position.
Re-tighten the screw connection of the caster fork axle (item 1). Mount the protective bushing.
10.3. Wheel base long (Fig. 34)
The further back the rear wheel is attached, the longer the wheel base and the greater the stability of the mobility
base.
• Please make sure when positioning the rear wheels, that the casters are perpendicular to the ground. If required,
mount the casters to another bore of the caster fork or use another caster size.
• Please note that if you change the position of the rear wheels you will have to readjust the wheel lock ("Adjusting
the wheel lock", page 24).
• Make sure to retighten all screws and nuts after making adjustments!
You can also turn around the axle plate to position the wheel axle near to the center of gravity, thus, however,
decreasing the stability of the seating shell wheelchair. In this case use of an anti-tipper is required.
10.4. Mounting and adjusting the anti-tipper (Fig. 17, 35 to 38)
1. With the eyelet closed, insert the expansion spring (Fig. 36, item 1) into the desired posterior frame tube. Put the
distance sleeve (item 2) and the screw (item 3) through the lowest bore hole (Ø 8 mm) and through the eyelet of
the spring. Do not over tighten the nut (item 4).
2. Hook a cord (Fig. 36, item 5) or a second expansion spring into the open eyelet of the first expansion spring
(item 6) and push the anti-tipper (item 7) into the posterior frame tube.
3. Pull at the cord (Fig. 37, item 8) or at the second expansion spring until part of the first expansion spring extends
from the anti-tipper (item 9).
4. Secure the expansion spring in this position using a screwdriver (Fig. 38, item 10), remove the cord (or the second
expansion spring) and attach the spring holder (item 11). Remove the screwdriver – the spring holder will lock into
place.
The anti-tipper can now be adjusted in accordance with the position of your rear wheel (Fig. 17). After the screw
connections have been loosened, the anti-tipper can be horizontally and vertically adjusted. In addition, the wheel
holder can be rotated by 180°. The anti-tipper wheel must at least completely extend from the rear wheel to the back,
and the distance between the wheel and ground should not exceed 5 cm maximum. Find the appropriate position with
the assistance of a helper!
10.5. Adjusting the wheel lock (Fig. 14,15, 39)
To change the position of the rear wheels, first loosen the wheel lock attachment screws (Fig. 15, item 1) and push
the wheel lock forward. Once the rear wheels have been set in the new position, the wheel lock should be mounted
so that when the wheel lock is not activated, the distance between the tires and wheel lock bolt is 10 mm maximum
(Fig. 39) (subject to technical changes). Check the tire air pressure and the effectiveness of the locking devices
regularly. The air pressure is indicated on the tire and is listed in the table on page 26. Be sure to use only original
rear wheels with approved radial excursion with a maximum of ± 1mm in order to ensure satisfactory braking effect.
Proper function of a correctly adjusted wheel lock with a load of max. 120 kg can be ensured up to 10 % incline.
• Make sure to retighten all screws and nuts after making adjustments!
10.6. Adjustable brake force at rear wheel with drum brake (Fig. 40)
In order to achieve optimal braking effect, the brake force can be adjusted by means of the adjustment screw (item 1).
By unscrewing the screw the brake force will be increased, to decrease turn the screw inwards.
• Please turn the adjustment screw to the left until frictional noise occurs at the wheel. Then screw the adjustment
screw to the right until the frictional noise disappears. The wheel should run freely. After finishing the adjustment,
fix the adjustment screw by tightening the counter nut (item 2).
• Be sure the brake force of both rear wheels is adjusted equally.
Dino 3
Adjustability / Assembly instructions
Ottobock | 29