This model can be assembled using either:
1. the parts supplied in the 13419M Classic K'NEX 70+10 model Motorised set, or
2. a 12211 K'NEX 50-model set or a 13419 K'NEX 70-model set plus our exclusive K'NEX Motor Add-on pack for 50- or 70-model set.
First, assemble a non-motorised version of the Rescue Truck, using the instructions in the K'NEX 70-model set .
Push a yellow rod right through your motor.
Then add white connectors, blue spacers and tan clips facing outwards, as shown in the photo.
Fit the wheels, so that the lugs on the tan-coloured interlocking clips fit into the small holes in each wheel.
Finally, fit the new rear wheel assembly back into your Rescue Truck model, and test it by switching on the motor.