Now that some started to report issues with their 8043 Motorized Excavator sets, namely poor performance on the boom raise, Jaeho Jung (sunsky) did some modifications to his model and produced a nice video playing in a real sand field.
He added some PF parts to the drive train,
- 2 XL-motors
- 2 PF Receivers
- 1 PF Rechargeable Battery (8878)
This way each of the Excavator six functions got his own motor and there no more need to be switching between sets of functions.
While not strictly needed, because there are just two motors on the drive train, Jaeho Jung used two PF Receivers connected in parallel to eliminate blind spots where the receiver won't "see" the remote. This is however not a standard use for the PFS parts and you should be responsible for eventual damages if deciding to give it a try.