DK2 POWER OPC533VK Manuel D'utilisation page 16

STEP 5: TROLLEY WHEEL
1
Secure tow bar into the unit.
3
Flip up for tow, and down for trolley.
16 | OPC533VK man.
2
Install both wheel mounts and wheel
on the tow bar.
4
Run on high RPM with slide door closed
to operate the vacuum.