9
Operations
Component Identification
Pump
— Delivers a specific gpm to the high pressure nozzle which develops pressure.
Spray Gun
— Controls the application of water and detergent onto cleaning surface with trigger device. Includes
safety latch.
Detergent Injector
— Allows you to siphon and mix detergents.
Wand
— Must be connected to the spray gun.
Heat Exchanger
— Has a stainless steel coil suspended into an 80 gallon water tank that is heated to 200° by
heating elements.
High Pressure Hose
— Connect one end to water pump high pressure discharge nipple and the other end to spray
gun.
Unloader Valve
— Safety device which, when the spray gun closes, prevents over pressurization (Not Shown.)
NOTE: If trigger on spray gun is released for more than 2 minutes, water will leak from the pump protector. Warm
water will discharge from pump protector onto floor. This system prevents internal pump damage.
Karcher HDS Series Operator’s Manual 9.800-967.0 - C