Rok Power Washer Instructions -

The Manual Says: "Connect water, turn on, squeeze trigger." The Reality: The pump screams like a dying banshee for 15 seconds. The Fix (Not in the manual): Before connecting the high-pressure hose, run water through the gun without the nozzle attached. This purges the "air lock" that plagues 70% of Rok units out of the box. Think of it as giving the machine a glass of water before asking it to run a marathon.

Follow these steps to start and use your ROK power washer:

Step 1: Purge the Air Before turning on the electricity, you must remove air from the system. rok power washer instructions

Step 2: Power On

Step 3: Spraying

Step 4: Using Detergent

Proper shutdown prevents damage to the pump and hoses. The Manual Says: "Connect water, turn on, squeeze trigger

  • Water Supply: Turn off the garden tap.
  • Drain the System:
  • Storage: Store the machine in a frost-free environment. Coil the hoses loosely to prevent kinking.

    • Skipping these steps is the #1 cause of damage to ROK pressure washers. Follow these ROK power washer instructions every single time.

    A ROK washer has no motor or battery. It uses hydraulic pressure generated by stepping on a foot pedal. Key parts: Step 2: Power On

    The Manual Says: "Do not run for more than 3 minutes without squeezing trigger." The Interesting Part: The Rok’s thermal relief valve is calibrated for German winter water (cold). If you’re using it in summer (75°F+ tap water), that valve won't trigger until the pump hits 140°F—which is 45 seconds after the seals start weeping.

    Simply run the unit with plain water for 30 seconds, disconnect everything, and store indoors.