Landa PGHW5-5000, Руководство оператора

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LANDA PGHW 5-5000 • 8.913-928.0 • REV. 3/13
PRESSURE
W
ASHER
Tr
oub
leshooting Guide
18
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
WATER
TEMPERATURE
TOO HIGH
Incorrect fuel nozzle size See specifications for proper fuel pressure.
Insufficient water supplied Check water GPM to machine
Restrict water flow Check nozzle for obstruction, proper size.
PUMP NOISY
Air in suction line Check water supply and connections on suction
line.
Broken or weak inlet or discharge
valve springs Check and replace if necessary.
Excessive matter in valves Check and clean if necessary.
Worn bearings Check and replace if necessary.
PRESENCE OF
WATER IN OIL Oil seal worn Check and replace if necessary.
High humidity in air Check and change oil twice as often.
WATER DRIPPING
FROM UNDER
PUMP Piston packing worn Check and replace if necessary.
O-Ring plunger retainer worn Check and replace if necessary.
Cracked piston Check and replace if necessary.
Pump protector Lower water supply pressure. Do not run with
spray gun closed longer than 5 minutes.
OIL DRIPPING Oil seal worn Check and replace if necessary.
EXCESSIVE
VIBRATION IN
DELIVERY LINE Irregular functioning of the valves Check and replace if necessary.
DETERGENT
NOT DRAWING
Air leak Tighten all clamps. Check detergent lines for
holes.
Restricter in float tank is missing Replace restrictor. Check for proper orifice in
restrictor.
Filter screen on detergent suction
hose plugged Clean or replace.
Dried up detergent plugging meter-
ing valve Disassemble and clean thoroughly.
High viscosity of detergent Dilute detergent to specifications.
Hole in detergent line(s) Repair hole.
Low detergent level Add detergent, if needed.
BURNER MOTOR
WILL NOT RUN
Fuel pump seized Replace fuel pump.
Burner fan loose or misaligned Position correctly, tighten set screw.
Defective control switch Replace switch.
Loose wire Check and replace or tighten wiring.
Defective burner motor Replace motor.
RELIEF VALVE/
RUPTURE DISK
LEAKS WATER
Excessive pressure, thermal
expansion Replace or repair.