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4.2.2. The HD Powered Stair Climbing Hand Truck is not a rubber mat!
Never throw a load onto the HD Powered Stair Climbing Hand Truck. We recommend
that this kind of loading method is avoided because it causes higher wear and may
damage the unit’s control unit as a result of vibrations.
4.2.3. Do not ride over curbs at an angle
Always ride over curbs or similar edges with both wheels contacting the edge at the
same time. This will prevent damage to the drive unit.
4.2.4. Operation on spiral staircases
Please observe the following points when operating the stair climbing hand truck on
spiral staircases:
The HD Powered Stair Climbing Hand Truck moves inwards when climbing up, so:
For climbing UP start on the outside of the staircase.
The HD Powered Stair Climbing Hand Truck moves outwards when going down, so:
For climbing DOWN start on the inside.
If you start moving too close to the banisters/wall then shift the unit to the side by
reversing (on a landing or wider step if possible) and start again at a tighter angle.
5. How the HD Powered Stair Climbing Hand Truck edge braking
system works:
5.1.
Enabling the system:
The edge braking system is enabled automatically as soon as the HD Powered Stair
Climbing Hand Truck is switched on using the "ON/OFF" switch (Figure 4, page 9). This
ensures that the brake blocks inside the rims of the main wheels block the main wheels
as soon as the unit approaches the edge of a step. The brakes are released mechanically
as soon as the main wheels contact the next step. The brake system remains active and
engages automatically when the main wheels approach the edge of the next step.
5.2.
Deactivating and blocking the edge braking system:
The edge braking system is blocked if the HD Powered Stair Climbing Hand Truck is
switched off using the "ON/OFF" switch (Figure 4, page 9 - LED is no longer green or
flashing) and the unit is parked on its toe plate.
The HD Powered Stair Climbing Hand truck then no longer stops automatically at
the edge of a step.