11
3.6.4 STARTING/STOPPING
(cont’d)
2. Stopping
a) If it is necessary to stop washing to move the work piece or equipment, release the spray gun
trigger and flip the safety latch into position under the trigger.
b) Lay the spray gun down.
c) The pump has an internal bypass to allow the water in the pump to re-circulate.
Do not let the
pump run in the bypass mode for more than 2 minutes.
d) For
complete
shutdown:
i.
Move the electric switch to the OFF position.
ii. Turn off the outside water supply.
iii. Continue to depress the spray gun trigger until the water stops flowing to relieve the internal
pressure.
iv. Remove electrical plug from receptacle.
v. Refer to Section 3.7 if the unit will see freezing temperatures during its shutdown or storage
period.
3.6.5 WASHING
1. Review pre-operation checklist.
2. Organize the work to be done. Unwrap as much of the pressure hose that will be required. Position
the washer out of the way of the spray.
3. Turn on water supply.
4. Be sure the safety latch is in position under the trigger.
5. Clear the area of bystanders, especially small children.
6. Refer to Section 3.6.4 to start the motor.
7. Hold the spray wand with both hands and aim it at the work.
8. Move the safety latch to its stowed position and depress the trigger.
IMPORTANT!
Hold the spray
gun with both hands for better control. The force of the water leaving the nozzle can move the wand.
9. Select the pressure mode appropriate for the washing job using the unloading valve.
10. Adjust the unloading valve by turning the knob to set the system pressure, if required.
11. Release trigger and change nozzles if a lesser or greater maximum pressure is desired.
12. Depress the trigger to start the flow. The spray gun can be turned to any angle and the water will
always flow through the selected nozzle providing the trigger is not released.
13. If additives are desired in the water, use injector valve (refer to Section 3.6.2). Note that detergent is
added at low pressure only (max 500 PSI or 3400 kPa).
14. Open the injector valve to allow the desired amount of additive into the water.
