11.6 Hydraulic problems
Problem Possible cause Solution
The hydraulic oil level is too low. Replenish the hydraulic oil. See
Transmission and hydraulic oil on
page 49.
The relief valve is faulty. Contact your Roberine dealer.
The pump or motor is faulty. Contact your Roberine dealer.
The hydraulic system does not work.
The suction line is blocked. Check the tank filter.
The oil level is too low. Replenish the hydraulic oil. See
Transmission and hydraulic oil on
page 49.
The wrong type of hydraulic oil is
used.
Use a different type of hydraulic oil.
See Technical specifications on page
22.
The hydraulic pump is noisy.
There is an air leak. Tighten the connections and make
sure that the O-rings are undamaged.
The oil level is too low. Replenish the hydraulic oil. See
Transmission and hydraulic oil on
page 49.
The wrong type of hydraulic oil is
used.
Use a different type of hydraulic oil.
See Technical specifications on page
22.
The oil foams.
There is an air leak. Tighten the connections and make
sure that the O-rings are undamaged.
The oil level is too low. Replenish the hydraulic oil. See
Transmission and hydraulic oil on
page 49.
The wrong type of hydraulic oil is
used.
Use a different type of hydraulic oil.
See Technical specifications on page
22.
The cutting blades rotate slowly
The relief valve is faulty. Contact your Roberine dealer.
The oil level is too low. Refill the hydraulic oil. See
Transmission and hydraulic oil on
page 49.
The wrong type of hydraulic oil is
used.
Use a different type of hydraulic oil.
See Technical specifications on page
22.
There is an internal high pressure
leak.
Contact your Roberine dealer.
The weight transfer valve has been
closed with too much weight.
Put the weight transfer switch in the
ON position.
The oil cooler is blocked. Clean the oil cooler.
The oil overheats.
The outdoor temperature is high and
the hydraulic system is subjected to a
heavy load.
Contact your Roberine dealer.
Troubleshooting 75
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