Makita EB5300TH Repair Manual page 64

17
Install Nozzle and Intermediate pipe (Long
pipe or Short pipe) on Swivel pipe.
Be sure to check engine speed with 1R070, and with End
nozzle 90-62 (nozzle diameter: 61.5mm) on Intermediate
pipe. Without the nozzle, engine speed cannot be
increased.
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Note