Holder C-Trac 4.74 - Manual (Page 76)

Operating instructions
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C 4.74
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.
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.
* Option