Noblift LPT22, Руководство по техническому обслуживанию

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4.6 TROUBLE DIAGNOSTICS
Symptom Abnormality and cause Countermeasure
Bubble in hydraulic oil Mixed with air
Check if there is any place
where air can be enteted.
Tighten the loosened part again.
Mixed with air and water Replace the oil.
Discoloration
Became inferior in quality by oxidizing or
mixed with other particles.
Replace the oil.
The
Plug Screw of port
for adding oil is ventilate. When lower, the air will come out
from the tank, it might take out little oil vapour. So, it might appear phenomena that a little oil stains on
the plug after some time. This aphenomena is not caused by leaking.
Because the electric current of the
Relay
for the lifting motor is very big, and work
continually hourly, the contact terminal of the relay is easy damaged. Please check it continually.
The
Magnet valve
is a wearing parts. If the forks automatically lower after lifting, the
magnet valve may be blocked or damaged, remove and clear it or repalce it.