Kärcher HDS 4.0/32 Pe Cage Manual page 23

PROBLEM
OIL DRIPPING
EXCESSIVE
VIBRATION IN
DELIVERY LINE
DETERGENT
NOT DRAWING
PUMP RUNNING
NORMALLY BUT
PRESSURE LOW ON
INSTALLATION
BURNER
MOTOR WILL
NOT RUN
RELIEF VALVE LEAKS
WATER
Downloaded from ManualsNet.com
POSSIBLE CAUSE
Oil seal worn
Irregular functioning of the valves
Air leak
Restrictor in float tank is missing
Filter screen on detergent suction
hose plugged
Dried up detergent plugging metering
valve
High viscosity of detergent
Hole in detergent line(s)
Low detergent level
Pump sucking air
Valves sticking
Nozzle incorrectly sized
Unloader valve seat faulty
Worn piston packing
Fuel pump seized
Burner fan loose or misaligned
Defective control switch
Loose wire
Defective burner motor
Relief valve defective
Karcher HDS 615-617 Operator's Manual 9.800-103.0 - V
search engine
SOLUTION
Check and replace if necessary.
Check and replace if necessary.
Tighten all clamps. Check detergent lines for
holes.
Replace restrictor. Check for proper orifice in
restrictor.
Clean or replace.
Disassemble and clean thoroughly.
Dilute detergent to specifications.
Repair hole.
Add detergent, if needed.
Check water supply and possibility of air seepage.
Check and clean or replace if necessary.
Check and replace if necessary
(See serial plate for proper size).
Check and replace if necessary.
Check and replace if necessary.
Replace fuel pump.
Position correctly, tighten set screw.
Replace switch.
Check and replace or tighten wiring.
Replace motor.
Replace or repair
Maintenance
23