Kubota U50-5, Operating Instructions Manual

Page: 146 / 236

144
W9272-8135-1
05/2020
Operation
Cold weather operation
Operating the machine at an ambient temperature below 5 °C is regarded as cold weather operation.
Necessary preparations prior to the winter season

If necessary, replace the engine oil and hydraulic oil with those of the viscosities specified for winter.

Only use regular diesel fuel with winter additives. Do not mix petrol and diesel fuel.

Check the battery’s state of charge. In case of extremely low temperatures, it may be necessary to remove
the battery after work and store it in a heated room.

Check the antifreeze strength in the cooling system (page 182). If necessary, add antifreeze until the protec-
tion ranges from -25 °C to -40 °C.

Apply talcum powder or silicone oil to all rubber seals at the windows, the cab door and the side window guide
rails.

Lubricate all locks, except the starter switch, with graphite lubricant.

Grease the cab door hinges.

Fill the washer system with a antifreeze window cleaner (page 147).
Operation during the winter season

The machine must be cleaned after work is finished (page 181); Special attention must be paid to the crawl-
ers, the front attachments and the piston rods of the hydraulic cylinders. If the machine is cleaned with a water
jet, it must then be parked in a dry, frost-free and well-ventilated enclosed space.

If necessary, park the machine on boards or mats in order to prevent freezing to the ground.

Before starting, check if the piston rods of the hydraulic cylinders are free of ice to avoid damage. Also check
if the crawlers are frozen to the ground. If so, do not take the machine into operation.

Start the engine (page 96) and let it run at idle speed until the engine has accommodated to the outside tem-
perature. Before you start working with the front attachments, warm up the machine until the operating tem-
perature is reached.
Be careful when getting on and off, the crawler could be slippery.
STOP