Landa ECOS 7000, Руководство оператора, Страница: 21 / 30

9.801-316.0 • Landa ECOS 7000 Operator Manual • Rev. 12/12
21
ECOS 7000
OPERA
TOR’S MANU
AL
PRESSURE WASHER TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE REPAIR
WASHER FAILS TO
DRAW DETERGENT
Detergent metering valve closed
or valve clogged or defective Open detergent metering valve, follow-
ing procedure in operating instructions.
Back pressure in hose (when using
additional lengths of pressure hose) Contact dealer for proper injector
size when adding lengths of hose.
Back pressure in pressure hose (when
using dual lance wand) Use proper size flood nozzle in dual
lance wand (refer to parts breakdown).
Suction tube not below liquid surface Completely submerge suction tube and
strainer in detergent solution.
Clogged or damaged suction strainer Clean or replace strainer.
DETERGENT
SOLUTION
TOO WEAK Clogged detergent strainer Clean or replace strainer.
Air leak in detergent suction tube or inlet
plumbing Find air leak and clean or
replace parts as necessary.
DETERGENT
SOLUTION TOO
CONCENTRATED Original detergent too concentrated Dilute product as necessary to achieve
proper concentration.
DETERGENT IN
RINSE CYCLE
Dual lance wand or adjustable nozzle
holder in open position or chemical me-
tering valve open Close dual lance wand adjustable lance
holder to achieve high pressure. Close
detergent metering valve.
DILUTION OF
DETERGENT
CONCENTRATE
DURING CYCLE
Worn or defective internal check valve Repair or replace check valve or
injector parts as necessary.
Defective check valve in detergent tank Replace parts as necessary.
NOISY OPERATION Worn bearings Replace bearings, refill crankcase oil
with recommended lubricant.
Cavitation Check inlet lines for restrictions
and/or proper sizing.
PUMP NOISY Low oil level Add oil
Worn or dirty valves Replace or clean.
Bad bearings Inspect bearings; replace as required
IRREGULAR
SPRAY PATTERN Worn or partially clogged nozzle Clean or replace nozzles.
EXCESSIVE WEAR
Worn or loose bearings Replace bearings. Check bearing
seals, spacers and retainers. Replace
any worn parts.
HIGH CRANKCASE
TEMPERATURE Wrong grade of oil USE SAE 90 Gear Oil.
Improper amount of oil in crankcase Adjust oil level to proper amount.
OIL LEAKS
Worn pistons and/or leaking crank seals,
crankcase cover seal or drain plugs Replace seals, sleeves or O-Rings.
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