Kubota U50-5, Operating Instructions Manual

Page: 217 / 236

Maintenance
W9272-8135-1
215
05/2020
Coolant content (air-conditioner only) - check
A low refrigerant level affects the performance of the equipment and the air-conditioner will eventually automati-
cally switch off. If you find out that the refrigerant level is too low, please contact your KUBOTA dealer.

Open the side cover (page 155).

Start the engine (page 96) and set an idle speed of 1500 1/min,
if necessary.

Set the temperature control to the "Cold" position and the fan
to level 3, then switch on the air-conditioner.

Using the sight glass (1), determine the refrigerant level ac-
cording to the table below. If the refrigerant level is too low,
please contact your KUBOTA dealer.

Close the side cover.
Avoid eye and skin contact. The refrigerant causes severe frostbite.
When working with refrigerants, always wear an eye protection.
Avoid contact of refrigerant and open flames. Burning the refrigerant produces a toxic gas.
Do not detach or deactivate any components of the air-conditioner. Please contact your KUBOTA
dealer.
This air conditioner contains fluorinated greenhouse gases (F-gases) (page 134 ).
Refrigerant level is OK Small or no bubbles in the refrigerant
Refrigerant level too low Many large bubbles and foam in the refrigerant
No refrigerant inside Colourless and transparent
STOP
STOP
STOP
1 1