Holder 4.74 manual Operation in winter Oil preheating, Winter diesel fuel, Hydraulic system

C 4.74

Operating instructions

Special operating instructions

Operation in winter

Oil preheating*

Before starting the engine at temperatures below -20°C, turn on the heating element* to preheat the oil.

-Connect the preheating system plug to a 230 VAC source. Observe the operating instructions of the battery manufacturer.

Winter diesel fuel

Whenever temperatures fall below 0°C, use winter diesel or super diesel fuel or additives recommended in the mainte- nance instructions.

Engine oil for winter operation

Fill engine oil with a suitable SAE class as recommended the maintenance instructions.

The cold start capability of the engine can be reduced if the temperature limits are underrun occasionally, but this does will not damage the engine.

Hydraulic system

The hydraulic functions are sluggish and slower during cold temperatures. Bring the hydraulic system to operating tem- perature with some movements without a load.

* Option

Putting on snow chains

Snow chains can be mounted on the tires to improve grip. In the following table you will find the order numbers for RUD chains which fit on the listed tires. You can also fit snow chains from other manufacturers if these have the proper dimensions.

Tires	Snow chain type
	(RUD Order No.)
10.5-18 MPT / 10.5/80-18	22 553 and 24 553
275/70 R18 / 320/65 R18	24 553
31x11.50 R15	22 055
31x15.50-15 Terra	24 548
33x12,50 R15	22 167 and 24 167
33x15.50-15	22 174
36x13.5-15	24 178

Ballast weights

The weight of the machine can be increased with ballast weights. The same ballast weights must be mounted on each axle and side.

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